+ case 0x1610: // (green)
+ element = EL_CHAR_PLUS;
+ break;
+
+ case 0x1611: // (green)
+ element = EL_CHAR_MINUS;
+ break;
+
+ case 0x1612: // (green)
+ element = EL_CHAR_APOSTROPHE;
+ break;
+
+ case 0x1613: // (green)
+ element = EL_CHAR_PARENLEFT;
+ break;
+
+ case 0x1614: // (green)
+ element = EL_CHAR_PARENRIGHT;
+ break;
+
+ case 0x1615: // (blue steel)
+ element = EL_STEEL_CHAR_A;
+ break;
+
+ case 0x1616: // (blue steel)
+ element = EL_STEEL_CHAR_B;
+ break;
+
+ case 0x1617: // (blue steel)
+ element = EL_STEEL_CHAR_C;
+ break;
+
+ case 0x1618: // (blue steel)
+ element = EL_STEEL_CHAR_D;
+ break;
+
+ case 0x1619: // (blue steel)
+ element = EL_STEEL_CHAR_E;
+ break;
+
+ case 0x161a: // (blue steel)
+ element = EL_STEEL_CHAR_F;
+ break;
+
+ case 0x161b: // (blue steel)
+ element = EL_STEEL_CHAR_G;
+ break;
+
+ case 0x161c: // (blue steel)
+ element = EL_STEEL_CHAR_H;
+ break;
+
+ case 0x161d: // (blue steel)
+ element = EL_STEEL_CHAR_I;
+ break;
+
+ case 0x161e: // (blue steel)
+ element = EL_STEEL_CHAR_J;
+ break;
+
+ case 0x161f: // (blue steel)
+ element = EL_STEEL_CHAR_K;
+ break;
+
+ case 0x1620: // (blue steel)
+ element = EL_STEEL_CHAR_L;
+ break;
+
+ case 0x1621: // (blue steel)
+ element = EL_STEEL_CHAR_M;
+ break;
+
+ case 0x1622: // (blue steel)
+ element = EL_STEEL_CHAR_N;
+ break;
+
+ case 0x1623: // (blue steel)
+ element = EL_STEEL_CHAR_O;
+ break;
+
+ case 0x1624: // (blue steel)
+ element = EL_STEEL_CHAR_P;
+ break;
+
+ case 0x1625: // (blue steel)
+ element = EL_STEEL_CHAR_Q;
+ break;
+
+ case 0x1626: // (blue steel)
+ element = EL_STEEL_CHAR_R;
+ break;
+
+ case 0x1627: // (blue steel)
+ element = EL_STEEL_CHAR_S;
+ break;
+
+ case 0x1628: // (blue steel)
+ element = EL_STEEL_CHAR_T;
+ break;
+
+ case 0x1629: // (blue steel)
+ element = EL_STEEL_CHAR_U;
+ break;
+
+ case 0x162a: // (blue steel)
+ element = EL_STEEL_CHAR_V;
+ break;
+
+ case 0x162b: // (blue steel)
+ element = EL_STEEL_CHAR_W;
+ break;
+
+ case 0x162c: // (blue steel)
+ element = EL_STEEL_CHAR_X;
+ break;
+
+ case 0x162d: // (blue steel)
+ element = EL_STEEL_CHAR_Y;
+ break;
+
+ case 0x162e: // (blue steel)
+ element = EL_STEEL_CHAR_Z;
+ break;
+
+ case 0x162f: // (blue steel)
+ element = EL_STEEL_CHAR_AUMLAUT;
+ break;
+
+ case 0x1630: // (blue steel)
+ element = EL_STEEL_CHAR_OUMLAUT;
+ break;
+
+ case 0x1631: // (blue steel)
+ element = EL_STEEL_CHAR_UUMLAUT;
+ break;
+
+ case 0x1632: // (blue steel)
+ element = EL_STEEL_CHAR_0;
+ break;
+
+ case 0x1633: // (blue steel)
+ element = EL_STEEL_CHAR_1;
+ break;
+
+ case 0x1634: // (blue steel)
+ element = EL_STEEL_CHAR_2;
+ break;
+
+ case 0x1635: // (blue steel)
+ element = EL_STEEL_CHAR_3;
+ break;
+
+ case 0x1636: // (blue steel)
+ element = EL_STEEL_CHAR_4;
+ break;
+
+ case 0x1637: // (blue steel)
+ element = EL_STEEL_CHAR_5;
+ break;
+
+ case 0x1638: // (blue steel)
+ element = EL_STEEL_CHAR_6;
+ break;
+
+ case 0x1639: // (blue steel)
+ element = EL_STEEL_CHAR_7;
+ break;
+
+ case 0x163a: // (blue steel)
+ element = EL_STEEL_CHAR_8;
+ break;
+
+ case 0x163b: // (blue steel)
+ element = EL_STEEL_CHAR_9;
+ break;
+
+ case 0x163c: // (blue steel)
+ element = EL_STEEL_CHAR_PERIOD;
+ break;
+
+ case 0x163d: // (blue steel)
+ element = EL_STEEL_CHAR_EXCLAM;
+ break;
+
+ case 0x163e: // (blue steel)
+ element = EL_STEEL_CHAR_COLON;
+ break;
+
+ case 0x163f: // (blue steel)
+ element = EL_STEEL_CHAR_LESS;
+ break;
+
+ case 0x1640: // (blue steel)
+ element = EL_STEEL_CHAR_GREATER;
+ break;
+
+ case 0x1641: // (blue steel)
+ element = EL_STEEL_CHAR_QUESTION;
+ break;
+
+ case 0x1642: // (blue steel)
+ element = EL_STEEL_CHAR_COPYRIGHT;
+ break;
+
+ case 0x1643: // (blue steel)
+ element = EL_STEEL_CHAR_UP;
+ break;
+
+ case 0x1644: // (blue steel)
+ element = EL_STEEL_CHAR_DOWN;
+ break;
+
+ case 0x1645: // (blue steel)
+ element = EL_STEEL_CHAR_BUTTON;
+ break;
+
+ case 0x1646: // (blue steel)
+ element = EL_STEEL_CHAR_PLUS;
+ break;
+
+ case 0x1647: // (blue steel)
+ element = EL_STEEL_CHAR_MINUS;
+ break;
+
+ case 0x1648: // (blue steel)
+ element = EL_STEEL_CHAR_APOSTROPHE;
+ break;
+
+ case 0x1649: // (blue steel)
+ element = EL_STEEL_CHAR_PARENLEFT;
+ break;
+
+ case 0x164a: // (blue steel)
+ element = EL_STEEL_CHAR_PARENRIGHT;
+ break;
+
+ case 0x164b: // (green steel)
+ element = EL_STEEL_CHAR_A;
+ break;
+
+ case 0x164c: // (green steel)
+ element = EL_STEEL_CHAR_B;
+ break;
+
+ case 0x164d: // (green steel)
+ element = EL_STEEL_CHAR_C;
+ break;
+
+ case 0x164e: // (green steel)
+ element = EL_STEEL_CHAR_D;
+ break;
+
+ case 0x164f: // (green steel)
+ element = EL_STEEL_CHAR_E;
+ break;
+
+ case 0x1650: // (green steel)
+ element = EL_STEEL_CHAR_F;
+ break;
+
+ case 0x1651: // (green steel)
+ element = EL_STEEL_CHAR_G;
+ break;
+
+ case 0x1652: // (green steel)
+ element = EL_STEEL_CHAR_H;
+ break;
+
+ case 0x1653: // (green steel)
+ element = EL_STEEL_CHAR_I;
+ break;
+
+ case 0x1654: // (green steel)
+ element = EL_STEEL_CHAR_J;
+ break;
+
+ case 0x1655: // (green steel)
+ element = EL_STEEL_CHAR_K;
+ break;
+
+ case 0x1656: // (green steel)
+ element = EL_STEEL_CHAR_L;
+ break;
+
+ case 0x1657: // (green steel)
+ element = EL_STEEL_CHAR_M;
+ break;
+
+ case 0x1658: // (green steel)
+ element = EL_STEEL_CHAR_N;
+ break;
+
+ case 0x1659: // (green steel)
+ element = EL_STEEL_CHAR_O;
+ break;
+
+ case 0x165a: // (green steel)
+ element = EL_STEEL_CHAR_P;
+ break;
+
+ case 0x165b: // (green steel)
+ element = EL_STEEL_CHAR_Q;
+ break;
+
+ case 0x165c: // (green steel)
+ element = EL_STEEL_CHAR_R;
+ break;
+
+ case 0x165d: // (green steel)
+ element = EL_STEEL_CHAR_S;
+ break;
+
+ case 0x165e: // (green steel)
+ element = EL_STEEL_CHAR_T;
+ break;
+
+ case 0x165f: // (green steel)
+ element = EL_STEEL_CHAR_U;
+ break;
+
+ case 0x1660: // (green steel)
+ element = EL_STEEL_CHAR_V;
+ break;
+
+ case 0x1661: // (green steel)
+ element = EL_STEEL_CHAR_W;
+ break;
+
+ case 0x1662: // (green steel)
+ element = EL_STEEL_CHAR_X;
+ break;
+
+ case 0x1663: // (green steel)
+ element = EL_STEEL_CHAR_Y;
+ break;
+
+ case 0x1664: // (green steel)
+ element = EL_STEEL_CHAR_Z;
+ break;
+
+ case 0x1665: // (green steel)
+ element = EL_STEEL_CHAR_AUMLAUT;
+ break;
+
+ case 0x1666: // (green steel)
+ element = EL_STEEL_CHAR_OUMLAUT;
+ break;
+
+ case 0x1667: // (green steel)
+ element = EL_STEEL_CHAR_UUMLAUT;
+ break;
+
+ case 0x1668: // (green steel)
+ element = EL_STEEL_CHAR_0;
+ break;
+
+ case 0x1669: // (green steel)
+ element = EL_STEEL_CHAR_1;
+ break;
+
+ case 0x166a: // (green steel)
+ element = EL_STEEL_CHAR_2;
+ break;
+
+ case 0x166b: // (green steel)
+ element = EL_STEEL_CHAR_3;
+ break;
+
+ case 0x166c: // (green steel)
+ element = EL_STEEL_CHAR_4;
+ break;
+
+ case 0x166d: // (green steel)
+ element = EL_STEEL_CHAR_5;
+ break;
+
+ case 0x166e: // (green steel)
+ element = EL_STEEL_CHAR_6;
+ break;
+
+ case 0x166f: // (green steel)
+ element = EL_STEEL_CHAR_7;
+ break;
+
+ case 0x1670: // (green steel)
+ element = EL_STEEL_CHAR_8;
+ break;
+
+ case 0x1671: // (green steel)
+ element = EL_STEEL_CHAR_9;
+ break;
+
+ case 0x1672: // (green steel)
+ element = EL_STEEL_CHAR_PERIOD;
+ break;
+
+ case 0x1673: // (green steel)
+ element = EL_STEEL_CHAR_EXCLAM;
+ break;
+
+ case 0x1674: // (green steel)
+ element = EL_STEEL_CHAR_COLON;
+ break;
+
+ case 0x1675: // (green steel)
+ element = EL_STEEL_CHAR_LESS;
+ break;
+
+ case 0x1676: // (green steel)
+ element = EL_STEEL_CHAR_GREATER;
+ break;
+
+ case 0x1677: // (green steel)
+ element = EL_STEEL_CHAR_QUESTION;
+ break;
+
+ case 0x1678: // (green steel)
+ element = EL_STEEL_CHAR_COPYRIGHT;
+ break;
+
+ case 0x1679: // (green steel)
+ element = EL_STEEL_CHAR_UP;
+ break;
+
+ case 0x167a: // (green steel)
+ element = EL_STEEL_CHAR_DOWN;
+ break;
+
+ case 0x167b: // (green steel)
+ element = EL_STEEL_CHAR_BUTTON;
+ break;
+
+ case 0x167c: // (green steel)
+ element = EL_STEEL_CHAR_PLUS;
+ break;
+
+ case 0x167d: // (green steel)
+ element = EL_STEEL_CHAR_MINUS;
+ break;
+
+ case 0x167e: // (green steel)
+ element = EL_STEEL_CHAR_APOSTROPHE;
+ break;
+
+ case 0x167f: // (green steel)
+ element = EL_STEEL_CHAR_PARENLEFT;
+ break;
+
+ case 0x1680: // (green steel)
+ element = EL_STEEL_CHAR_PARENRIGHT;
+ break;
+
+ case 0x1681: // gate (red)
+ element = EL_EM_GATE_1;
+ break;
+
+ case 0x1682: // secret gate (red)
+ element = EL_GATE_1_GRAY;
+ break;
+
+ case 0x1683: // gate (yellow)
+ element = EL_EM_GATE_2;
+ break;
+
+ case 0x1684: // secret gate (yellow)
+ element = EL_GATE_2_GRAY;
+ break;
+
+ case 0x1685: // gate (blue)
+ element = EL_EM_GATE_4;
+ break;
+
+ case 0x1686: // secret gate (blue)
+ element = EL_GATE_4_GRAY;
+ break;
+
+ case 0x1687: // gate (green)
+ element = EL_EM_GATE_3;
+ break;
+
+ case 0x1688: // secret gate (green)
+ element = EL_GATE_3_GRAY;
+ break;
+
+ case 0x1689: // gate (white)
+ element = EL_DC_GATE_WHITE;
+ break;
+
+ case 0x168a: // secret gate (white)
+ element = EL_DC_GATE_WHITE_GRAY;
+ break;
+
+ case 0x168b: // secret gate (no key)
+ element = EL_DC_GATE_FAKE_GRAY;
+ break;
+
+ case 0x168c:
+ element = EL_ROBOT_WHEEL;
+ break;
+
+ case 0x168d:
+ element = EL_DC_TIMEGATE_SWITCH;
+ break;
+
+ case 0x168e:
+ element = EL_ACID_POOL_BOTTOM;
+ break;
+
+ case 0x168f:
+ element = EL_ACID_POOL_TOPLEFT;
+ break;
+
+ case 0x1690:
+ element = EL_ACID_POOL_TOPRIGHT;
+ break;
+
+ case 0x1691:
+ element = EL_ACID_POOL_BOTTOMLEFT;
+ break;
+
+ case 0x1692:
+ element = EL_ACID_POOL_BOTTOMRIGHT;
+ break;
+
+ case 0x1693:
+ element = EL_STEELWALL;
+ break;
+
+ case 0x1694:
+ element = EL_STEELWALL_SLIPPERY;
+ break;
+
+ case 0x1695: // steel wall (not round)
+ element = EL_STEELWALL;
+ break;
+
+ case 0x1696: // steel wall (left)
+ element = EL_DC_STEELWALL_1_LEFT;
+ break;
+
+ case 0x1697: // steel wall (bottom)
+ element = EL_DC_STEELWALL_1_BOTTOM;
+ break;
+
+ case 0x1698: // steel wall (right)
+ element = EL_DC_STEELWALL_1_RIGHT;
+ break;
+
+ case 0x1699: // steel wall (top)
+ element = EL_DC_STEELWALL_1_TOP;
+ break;
+
+ case 0x169a: // steel wall (left/bottom)
+ element = EL_DC_STEELWALL_1_BOTTOMLEFT;
+ break;
+
+ case 0x169b: // steel wall (right/bottom)
+ element = EL_DC_STEELWALL_1_BOTTOMRIGHT;
+ break;
+
+ case 0x169c: // steel wall (right/top)
+ element = EL_DC_STEELWALL_1_TOPRIGHT;
+ break;
+
+ case 0x169d: // steel wall (left/top)
+ element = EL_DC_STEELWALL_1_TOPLEFT;
+ break;
+
+ case 0x169e: // steel wall (right/bottom small)
+ element = EL_DC_STEELWALL_1_BOTTOMRIGHT_2;
+ break;
+
+ case 0x169f: // steel wall (left/bottom small)
+ element = EL_DC_STEELWALL_1_BOTTOMLEFT_2;
+ break;
+
+ case 0x16a0: // steel wall (right/top small)
+ element = EL_DC_STEELWALL_1_TOPRIGHT_2;
+ break;
+
+ case 0x16a1: // steel wall (left/top small)
+ element = EL_DC_STEELWALL_1_TOPLEFT_2;
+ break;
+
+ case 0x16a2: // steel wall (left/right)
+ element = EL_DC_STEELWALL_1_VERTICAL;
+ break;
+
+ case 0x16a3: // steel wall (top/bottom)
+ element = EL_DC_STEELWALL_1_HORIZONTAL;
+ break;
+
+ case 0x16a4: // steel wall 2 (left end)
+ element = EL_DC_STEELWALL_2_LEFT;
+ break;
+
+ case 0x16a5: // steel wall 2 (right end)
+ element = EL_DC_STEELWALL_2_RIGHT;
+ break;
+
+ case 0x16a6: // steel wall 2 (top end)
+ element = EL_DC_STEELWALL_2_TOP;
+ break;
+
+ case 0x16a7: // steel wall 2 (bottom end)
+ element = EL_DC_STEELWALL_2_BOTTOM;
+ break;
+
+ case 0x16a8: // steel wall 2 (left/right)
+ element = EL_DC_STEELWALL_2_HORIZONTAL;
+ break;
+
+ case 0x16a9: // steel wall 2 (up/down)
+ element = EL_DC_STEELWALL_2_VERTICAL;
+ break;
+
+ case 0x16aa: // steel wall 2 (mid)
+ element = EL_DC_STEELWALL_2_MIDDLE;
+ break;
+
+ case 0x16ab:
+ element = EL_SIGN_EXCLAMATION;
+ break;
+
+ case 0x16ac:
+ element = EL_SIGN_RADIOACTIVITY;
+ break;
+
+ case 0x16ad:
+ element = EL_SIGN_STOP;
+ break;
+
+ case 0x16ae:
+ element = EL_SIGN_WHEELCHAIR;
+ break;
+
+ case 0x16af:
+ element = EL_SIGN_PARKING;
+ break;
+
+ case 0x16b0:
+ element = EL_SIGN_NO_ENTRY;
+ break;
+
+ case 0x16b1:
+ element = EL_SIGN_HEART;
+ break;
+
+ case 0x16b2:
+ element = EL_SIGN_GIVE_WAY;
+ break;
+
+ case 0x16b3:
+ element = EL_SIGN_ENTRY_FORBIDDEN;
+ break;
+
+ case 0x16b4:
+ element = EL_SIGN_EMERGENCY_EXIT;
+ break;
+
+ case 0x16b5:
+ element = EL_SIGN_YIN_YANG;
+ break;
+
+ case 0x16b6:
+ element = EL_WALL_EMERALD;
+ break;
+
+ case 0x16b7:
+ element = EL_WALL_DIAMOND;
+ break;
+
+ case 0x16b8:
+ element = EL_WALL_PEARL;
+ break;
+
+ case 0x16b9:
+ element = EL_WALL_CRYSTAL;
+ break;
+
+ case 0x16ba:
+ element = EL_INVISIBLE_WALL;
+ break;
+
+ case 0x16bb:
+ element = EL_INVISIBLE_STEELWALL;
+ break;
+
+ // 0x16bc - 0x16cb:
+ // EL_INVISIBLE_SAND
+
+ case 0x16cc:
+ element = EL_LIGHT_SWITCH;
+ break;
+
+ case 0x16cd:
+ element = EL_ENVELOPE_1;
+ break;
+
+ default:
+ if (element >= 0x0117 && element <= 0x036e) // (?)
+ element = EL_DIAMOND;
+ else if (element >= 0x042d && element <= 0x0684) // (?)
+ element = EL_EMERALD;
+ else if (element >= 0x157c && element <= 0x158b)
+ element = EL_SAND;
+ else if (element >= 0x1590 && element <= 0x159f)
+ element = EL_DC_LANDMINE;
+ else if (element >= 0x16bc && element <= 0x16cb)
+ element = EL_INVISIBLE_SAND;
+ else
+ {
+ Error(ERR_WARN, "unknown Diamond Caves element 0x%04x", element);
+ element = EL_UNKNOWN;
+ }
+ break;
+ }
+
+ return getMappedElement(element);
+}
+
+static void LoadLevelFromFileStream_DC(File *file, struct LevelInfo *level,
+ int nr)
+{
+ byte header[DC_LEVEL_HEADER_SIZE];
+ int envelope_size;
+ int envelope_header_pos = 62;
+ int envelope_content_pos = 94;
+ int level_name_pos = 251;
+ int level_author_pos = 292;
+ int envelope_header_len;
+ int envelope_content_len;
+ int level_name_len;
+ int level_author_len;
+ int fieldx, fieldy;
+ int num_yamyam_contents;
+ int i, x, y;
+
+ getDecodedWord_DC(0, TRUE); // initialize DC2 decoding engine
+
+ for (i = 0; i < DC_LEVEL_HEADER_SIZE / 2; i++)
+ {
+ unsigned short header_word = getDecodedWord_DC(getFile16BitBE(file), FALSE);
+
+ header[i * 2 + 0] = header_word >> 8;
+ header[i * 2 + 1] = header_word & 0xff;
+ }
+
+ // read some values from level header to check level decoding integrity
+ fieldx = header[6] | (header[7] << 8);
+ fieldy = header[8] | (header[9] << 8);
+ num_yamyam_contents = header[60] | (header[61] << 8);
+
+ // do some simple sanity checks to ensure that level was correctly decoded
+ if (fieldx < 1 || fieldx > 256 ||
+ fieldy < 1 || fieldy > 256 ||
+ num_yamyam_contents < 1 || num_yamyam_contents > 8)
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "cannot decode level from stream -- using empty level");
+
+ return;
+ }
+
+ // maximum envelope header size is 31 bytes
+ envelope_header_len = header[envelope_header_pos];
+ // maximum envelope content size is 110 (156?) bytes
+ envelope_content_len = header[envelope_content_pos];
+
+ // maximum level title size is 40 bytes
+ level_name_len = MIN(header[level_name_pos], MAX_LEVEL_NAME_LEN);
+ // maximum level author size is 30 (51?) bytes
+ level_author_len = MIN(header[level_author_pos], MAX_LEVEL_AUTHOR_LEN);
+
+ envelope_size = 0;
+
+ for (i = 0; i < envelope_header_len; i++)
+ if (envelope_size < MAX_ENVELOPE_TEXT_LEN)
+ level->envelope[0].text[envelope_size++] =
+ header[envelope_header_pos + 1 + i];
+
+ if (envelope_header_len > 0 && envelope_content_len > 0)
+ {
+ if (envelope_size < MAX_ENVELOPE_TEXT_LEN)
+ level->envelope[0].text[envelope_size++] = '\n';
+ if (envelope_size < MAX_ENVELOPE_TEXT_LEN)
+ level->envelope[0].text[envelope_size++] = '\n';
+ }
+
+ for (i = 0; i < envelope_content_len; i++)
+ if (envelope_size < MAX_ENVELOPE_TEXT_LEN)
+ level->envelope[0].text[envelope_size++] =
+ header[envelope_content_pos + 1 + i];
+
+ level->envelope[0].text[envelope_size] = '\0';
+
+ level->envelope[0].xsize = MAX_ENVELOPE_XSIZE;
+ level->envelope[0].ysize = 10;
+ level->envelope[0].autowrap = TRUE;
+ level->envelope[0].centered = TRUE;
+
+ for (i = 0; i < level_name_len; i++)
+ level->name[i] = header[level_name_pos + 1 + i];
+ level->name[level_name_len] = '\0';
+
+ for (i = 0; i < level_author_len; i++)
+ level->author[i] = header[level_author_pos + 1 + i];
+ level->author[level_author_len] = '\0';
+
+ num_yamyam_contents = header[60] | (header[61] << 8);
+ level->num_yamyam_contents =
+ MIN(MAX(MIN_ELEMENT_CONTENTS, num_yamyam_contents), MAX_ELEMENT_CONTENTS);
+
+ for (i = 0; i < num_yamyam_contents; i++)
+ {
+ for (y = 0; y < 3; y++) for (x = 0; x < 3; x++)
+ {
+ unsigned short word = getDecodedWord_DC(getFile16BitBE(file), FALSE);
+ int element_dc = ((word & 0xff) << 8) | ((word >> 8) & 0xff);
+
+ if (i < MAX_ELEMENT_CONTENTS)
+ level->yamyam_content[i].e[x][y] = getMappedElement_DC(element_dc);
+ }
+ }
+
+ fieldx = header[6] | (header[7] << 8);
+ fieldy = header[8] | (header[9] << 8);
+ level->fieldx = MIN(MAX(MIN_LEV_FIELDX, fieldx), MAX_LEV_FIELDX);
+ level->fieldy = MIN(MAX(MIN_LEV_FIELDY, fieldy), MAX_LEV_FIELDY);
+
+ for (y = 0; y < fieldy; y++) for (x = 0; x < fieldx; x++)
+ {
+ unsigned short word = getDecodedWord_DC(getFile16BitBE(file), FALSE);
+ int element_dc = ((word & 0xff) << 8) | ((word >> 8) & 0xff);
+
+ if (x < MAX_LEV_FIELDX && y < MAX_LEV_FIELDY)
+ level->field[x][y] = getMappedElement_DC(element_dc);
+ }
+
+ x = MIN(MAX(0, (header[10] | (header[11] << 8)) - 1), MAX_LEV_FIELDX - 1);
+ y = MIN(MAX(0, (header[12] | (header[13] << 8)) - 1), MAX_LEV_FIELDY - 1);
+ level->field[x][y] = EL_PLAYER_1;
+
+ x = MIN(MAX(0, (header[14] | (header[15] << 8)) - 1), MAX_LEV_FIELDX - 1);
+ y = MIN(MAX(0, (header[16] | (header[17] << 8)) - 1), MAX_LEV_FIELDY - 1);
+ level->field[x][y] = EL_PLAYER_2;
+
+ level->gems_needed = header[18] | (header[19] << 8);
+
+ level->score[SC_EMERALD] = header[20] | (header[21] << 8);
+ level->score[SC_DIAMOND] = header[22] | (header[23] << 8);
+ level->score[SC_PEARL] = header[24] | (header[25] << 8);
+ level->score[SC_CRYSTAL] = header[26] | (header[27] << 8);
+ level->score[SC_NUT] = header[28] | (header[29] << 8);
+ level->score[SC_ROBOT] = header[30] | (header[31] << 8);
+ level->score[SC_SPACESHIP] = header[32] | (header[33] << 8);
+ level->score[SC_BUG] = header[34] | (header[35] << 8);
+ level->score[SC_YAMYAM] = header[36] | (header[37] << 8);
+ level->score[SC_DYNAMITE] = header[38] | (header[39] << 8);
+ level->score[SC_KEY] = header[40] | (header[41] << 8);
+ level->score[SC_TIME_BONUS] = header[42] | (header[43] << 8);
+
+ level->time = header[44] | (header[45] << 8);
+
+ level->amoeba_speed = header[46] | (header[47] << 8);
+ level->time_light = header[48] | (header[49] << 8);
+ level->time_timegate = header[50] | (header[51] << 8);
+ level->time_wheel = header[52] | (header[53] << 8);
+ level->time_magic_wall = header[54] | (header[55] << 8);
+ level->extra_time = header[56] | (header[57] << 8);
+ level->shield_normal_time = header[58] | (header[59] << 8);
+
+ // Diamond Caves has the same (strange) behaviour as Emerald Mine that gems
+ // can slip down from flat walls, like normal walls and steel walls
+ level->em_slippery_gems = TRUE;
+}
+
+static void LoadLevelFromFileInfo_DC(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ char *filename = level_file_info->filename;
+ File *file;
+ int num_magic_bytes = 8;
+ char magic_bytes[num_magic_bytes + 1];
+ int num_levels_to_skip = level_file_info->nr - leveldir_current->first_level;
+
+ if (!(file = openFile(filename, MODE_READ)))
+ {
+ level->no_valid_file = TRUE;
+
+ if (!level_info_only)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+ return;
+ }
+
+ // fseek(file, 0x0000, SEEK_SET);
+
+ if (level_file_info->packed)
+ {
+ // read "magic bytes" from start of file
+ if (getStringFromFile(file, magic_bytes, num_magic_bytes + 1) == NULL)
+ magic_bytes[0] = '\0';
+
+ // check "magic bytes" for correct file format
+ if (!strPrefix(magic_bytes, "DC2"))
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unknown DC level file '%s' -- using empty level",
+ filename);
+
+ return;
+ }
+
+ if (strPrefix(magic_bytes, "DC2Win95") ||
+ strPrefix(magic_bytes, "DC2Win98"))
+ {
+ int position_first_level = 0x00fa;
+ int extra_bytes = 4;
+ int skip_bytes;
+
+ // advance file stream to first level inside the level package
+ skip_bytes = position_first_level - num_magic_bytes - extra_bytes;
+
+ // each block of level data is followed by block of non-level data
+ num_levels_to_skip *= 2;
+
+ // at least skip header bytes, therefore use ">= 0" instead of "> 0"
+ while (num_levels_to_skip >= 0)
+ {
+ // advance file stream to next level inside the level package
+ if (seekFile(file, skip_bytes, SEEK_CUR) != 0)
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "cannot fseek in file '%s' -- using empty level",
+ filename);
+
+ return;
+ }
+
+ // skip apparently unused extra bytes following each level
+ ReadUnusedBytesFromFile(file, extra_bytes);
+
+ // read size of next level in level package
+ skip_bytes = getFile32BitLE(file);
+
+ num_levels_to_skip--;
+ }
+ }
+ else
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "unknown DC2 level file '%s' -- using empty level",
+ filename);
+
+ return;
+ }
+ }
+
+ LoadLevelFromFileStream_DC(file, level, level_file_info->nr);
+
+ closeFile(file);
+}
+
+
+// ----------------------------------------------------------------------------
+// functions for loading SB level
+// ----------------------------------------------------------------------------
+
+int getMappedElement_SB(int element_ascii, boolean use_ces)
+{
+ static struct
+ {
+ int ascii;
+ int sb;
+ int ce;
+ }
+ sb_element_mapping[] =
+ {
+ { ' ', EL_EMPTY, EL_CUSTOM_1 }, // floor (space)
+ { '#', EL_STEELWALL, EL_CUSTOM_2 }, // wall
+ { '@', EL_PLAYER_1, EL_CUSTOM_3 }, // player
+ { '$', EL_SOKOBAN_OBJECT, EL_CUSTOM_4 }, // box
+ { '.', EL_SOKOBAN_FIELD_EMPTY, EL_CUSTOM_5 }, // goal square
+ { '*', EL_SOKOBAN_FIELD_FULL, EL_CUSTOM_6 }, // box on goal square
+ { '+', EL_SOKOBAN_FIELD_PLAYER, EL_CUSTOM_7 }, // player on goal square
+ { '_', EL_INVISIBLE_STEELWALL, EL_FROM_LEVEL_TEMPLATE }, // floor beyond border
+
+ { 0, -1, -1 },
+ };
+
+ int i;
+
+ for (i = 0; sb_element_mapping[i].ascii != 0; i++)
+ if (element_ascii == sb_element_mapping[i].ascii)
+ return (use_ces ? sb_element_mapping[i].ce : sb_element_mapping[i].sb);
+
+ return EL_UNDEFINED;
+}
+
+static void LoadLevelFromFileInfo_SB(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ char *filename = level_file_info->filename;
+ char line[MAX_LINE_LEN], line_raw[MAX_LINE_LEN], previous_line[MAX_LINE_LEN];
+ char last_comment[MAX_LINE_LEN];
+ char level_name[MAX_LINE_LEN];
+ char *line_ptr;
+ File *file;
+ int num_levels_to_skip = level_file_info->nr - leveldir_current->first_level;
+ boolean read_continued_line = FALSE;
+ boolean reading_playfield = FALSE;
+ boolean got_valid_playfield_line = FALSE;
+ boolean invalid_playfield_char = FALSE;
+ boolean load_xsb_to_ces = check_special_flags("load_xsb_to_ces");
+ int file_level_nr = 0;
+ int line_nr = 0;
+ int x = 0, y = 0; // initialized to make compilers happy
+
+ last_comment[0] = '\0';
+ level_name[0] = '\0';
+
+ if (!(file = openFile(filename, MODE_READ)))
+ {
+ level->no_valid_file = TRUE;
+
+ if (!level_info_only)
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+ return;
+ }
+
+ while (!checkEndOfFile(file))
+ {
+ // level successfully read, but next level may follow here
+ if (!got_valid_playfield_line && reading_playfield)
+ {
+ // read playfield from single level file -- skip remaining file
+ if (!level_file_info->packed)
+ break;
+
+ if (file_level_nr >= num_levels_to_skip)
+ break;
+
+ file_level_nr++;
+
+ last_comment[0] = '\0';
+ level_name[0] = '\0';
+
+ reading_playfield = FALSE;
+ }
+
+ got_valid_playfield_line = FALSE;
+
+ // read next line of input file
+ if (!getStringFromFile(file, line, MAX_LINE_LEN))
+ break;
+
+ // check if line was completely read and is terminated by line break
+ if (strlen(line) > 0 && line[strlen(line) - 1] == '\n')
+ line_nr++;
+
+ // cut trailing line break (this can be newline and/or carriage return)
+ for (line_ptr = &line[strlen(line)]; line_ptr >= line; line_ptr--)
+ if ((*line_ptr == '\n' || *line_ptr == '\r') && *(line_ptr + 1) == '\0')
+ *line_ptr = '\0';
+
+ // copy raw input line for later use (mainly debugging output)
+ strcpy(line_raw, line);
+
+ if (read_continued_line)
+ {
+ // append new line to existing line, if there is enough space
+ if (strlen(previous_line) + strlen(line_ptr) < MAX_LINE_LEN)
+ strcat(previous_line, line_ptr);
+
+ strcpy(line, previous_line); // copy storage buffer to line
+
+ read_continued_line = FALSE;
+ }
+
+ // if the last character is '\', continue at next line
+ if (strlen(line) > 0 && line[strlen(line) - 1] == '\\')
+ {
+ line[strlen(line) - 1] = '\0'; // cut off trailing backslash
+ strcpy(previous_line, line); // copy line to storage buffer
+
+ read_continued_line = TRUE;
+
+ continue;
+ }
+
+ // skip empty lines
+ if (line[0] == '\0')
+ continue;
+
+ // extract comment text from comment line
+ if (line[0] == ';')
+ {
+ for (line_ptr = line; *line_ptr; line_ptr++)
+ if (*line_ptr != ' ' && *line_ptr != '\t' && *line_ptr != ';')
+ break;
+
+ strcpy(last_comment, line_ptr);
+
+ continue;
+ }
+
+ // extract level title text from line containing level title
+ if (line[0] == '\'')
+ {
+ strcpy(level_name, &line[1]);
+
+ if (strlen(level_name) > 0 && level_name[strlen(level_name) - 1] == '\'')
+ level_name[strlen(level_name) - 1] = '\0';
+
+ continue;
+ }
+
+ // skip lines containing only spaces (or empty lines)
+ for (line_ptr = line; *line_ptr; line_ptr++)
+ if (*line_ptr != ' ')
+ break;
+ if (*line_ptr == '\0')
+ continue;
+
+ // at this point, we have found a line containing part of a playfield
+
+ got_valid_playfield_line = TRUE;
+
+ if (!reading_playfield)
+ {
+ reading_playfield = TRUE;
+ invalid_playfield_char = FALSE;
+
+ for (x = 0; x < MAX_LEV_FIELDX; x++)
+ for (y = 0; y < MAX_LEV_FIELDY; y++)
+ level->field[x][y] = getMappedElement_SB(' ', load_xsb_to_ces);
+
+ level->fieldx = 0;
+ level->fieldy = 0;
+
+ // start with topmost tile row
+ y = 0;
+ }
+
+ // skip playfield line if larger row than allowed
+ if (y >= MAX_LEV_FIELDY)
+ continue;
+
+ // start with leftmost tile column
+ x = 0;
+
+ // read playfield elements from line
+ for (line_ptr = line; *line_ptr; line_ptr++)
+ {
+ int mapped_sb_element = getMappedElement_SB(*line_ptr, load_xsb_to_ces);
+
+ // stop parsing playfield line if larger column than allowed
+ if (x >= MAX_LEV_FIELDX)
+ break;
+
+ if (mapped_sb_element == EL_UNDEFINED)
+ {
+ invalid_playfield_char = TRUE;
+
+ break;
+ }
+
+ level->field[x][y] = mapped_sb_element;
+
+ // continue with next tile column
+ x++;
+
+ level->fieldx = MAX(x, level->fieldx);
+ }
+
+ if (invalid_playfield_char)
+ {
+ // if first playfield line, treat invalid lines as comment lines
+ if (y == 0)
+ reading_playfield = FALSE;
+
+ continue;
+ }
+
+ // continue with next tile row
+ y++;
+ }
+
+ closeFile(file);
+
+ level->fieldy = y;
+
+ level->fieldx = MIN(MAX(MIN_LEV_FIELDX, level->fieldx), MAX_LEV_FIELDX);
+ level->fieldy = MIN(MAX(MIN_LEV_FIELDY, level->fieldy), MAX_LEV_FIELDY);
+
+ if (!reading_playfield)
+ {
+ level->no_valid_file = TRUE;
+
+ Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+ return;
+ }
+
+ if (*level_name != '\0')
+ {
+ strncpy(level->name, level_name, MAX_LEVEL_NAME_LEN);
+ level->name[MAX_LEVEL_NAME_LEN] = '\0';
+ }
+ else if (*last_comment != '\0')
+ {
+ strncpy(level->name, last_comment, MAX_LEVEL_NAME_LEN);
+ level->name[MAX_LEVEL_NAME_LEN] = '\0';
+ }
+ else
+ {
+ sprintf(level->name, "--> Level %d <--", level_file_info->nr);
+ }
+
+ // set all empty fields beyond the border walls to invisible steel wall
+ for (y = 0; y < level->fieldy; y++) for (x = 0; x < level->fieldx; x++)
+ {
+ if ((x == 0 || x == level->fieldx - 1 ||
+ y == 0 || y == level->fieldy - 1) &&
+ level->field[x][y] == getMappedElement_SB(' ', load_xsb_to_ces))
+ FloodFillLevel(x, y, getMappedElement_SB('_', load_xsb_to_ces),
+ level->field, level->fieldx, level->fieldy);
+ }
+
+ // set special level settings for Sokoban levels
+
+ level->time = 0;
+ level->use_step_counter = TRUE;
+
+ if (load_xsb_to_ces)
+ {
+ // special global settings can now be set in level template
+
+ level->use_custom_template = TRUE;
+ }
+}
+
+
+// -------------------------------------------------------------------------
+// functions for handling native levels
+// -------------------------------------------------------------------------
+
+static void LoadLevelFromFileInfo_EM(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ if (!LoadNativeLevel_EM(level_file_info->filename, level_info_only))
+ level->no_valid_file = TRUE;
+}
+
+static void LoadLevelFromFileInfo_SP(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ int pos = 0;
+
+ // determine position of requested level inside level package
+ if (level_file_info->packed)
+ pos = level_file_info->nr - leveldir_current->first_level;
+
+ if (!LoadNativeLevel_SP(level_file_info->filename, pos, level_info_only))
+ level->no_valid_file = TRUE;
+}
+
+static void LoadLevelFromFileInfo_MM(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ if (!LoadNativeLevel_MM(level_file_info->filename, level_info_only))
+ level->no_valid_file = TRUE;
+}
+
+void CopyNativeLevel_RND_to_Native(struct LevelInfo *level)
+{
+ if (level->game_engine_type == GAME_ENGINE_TYPE_EM)
+ CopyNativeLevel_RND_to_EM(level);
+ else if (level->game_engine_type == GAME_ENGINE_TYPE_SP)
+ CopyNativeLevel_RND_to_SP(level);
+ else if (level->game_engine_type == GAME_ENGINE_TYPE_MM)
+ CopyNativeLevel_RND_to_MM(level);
+}
+
+void CopyNativeLevel_Native_to_RND(struct LevelInfo *level)
+{
+ if (level->game_engine_type == GAME_ENGINE_TYPE_EM)
+ CopyNativeLevel_EM_to_RND(level);
+ else if (level->game_engine_type == GAME_ENGINE_TYPE_SP)
+ CopyNativeLevel_SP_to_RND(level);
+ else if (level->game_engine_type == GAME_ENGINE_TYPE_MM)
+ CopyNativeLevel_MM_to_RND(level);
+}
+
+void SaveNativeLevel(struct LevelInfo *level)
+{
+ if (level->game_engine_type == GAME_ENGINE_TYPE_SP)
+ {
+ char *basename = getSingleLevelBasenameExt(level->file_info.nr, "sp");
+ char *filename = getLevelFilenameFromBasename(basename);
+
+ CopyNativeLevel_RND_to_SP(level);
+ CopyNativeTape_RND_to_SP(level);
+
+ SaveNativeLevel_SP(filename);
+ }
+}
+
+
+// ----------------------------------------------------------------------------
+// functions for loading generic level
+// ----------------------------------------------------------------------------
+
+static void LoadLevelFromFileInfo(struct LevelInfo *level,
+ struct LevelFileInfo *level_file_info,
+ boolean level_info_only)
+{
+ // always start with reliable default values
+ setLevelInfoToDefaults(level, level_info_only, TRUE);
+
+ switch (level_file_info->type)
+ {
+ case LEVEL_FILE_TYPE_RND:
+ LoadLevelFromFileInfo_RND(level, level_file_info, level_info_only);
+ break;
+
+ case LEVEL_FILE_TYPE_EM:
+ LoadLevelFromFileInfo_EM(level, level_file_info, level_info_only);
+ level->game_engine_type = GAME_ENGINE_TYPE_EM;
+ break;
+
+ case LEVEL_FILE_TYPE_SP:
+ LoadLevelFromFileInfo_SP(level, level_file_info, level_info_only);
+ level->game_engine_type = GAME_ENGINE_TYPE_SP;
+ break;
+
+ case LEVEL_FILE_TYPE_MM:
+ LoadLevelFromFileInfo_MM(level, level_file_info, level_info_only);
+ level->game_engine_type = GAME_ENGINE_TYPE_MM;
+ break;
+
+ case LEVEL_FILE_TYPE_DC:
+ LoadLevelFromFileInfo_DC(level, level_file_info, level_info_only);
+ break;
+
+ case LEVEL_FILE_TYPE_SB:
+ LoadLevelFromFileInfo_SB(level, level_file_info, level_info_only);
+ break;
+
+ default:
+ LoadLevelFromFileInfo_RND(level, level_file_info, level_info_only);
+ break;
+ }
+
+ // if level file is invalid, restore level structure to default values
+ if (level->no_valid_file)
+ setLevelInfoToDefaults(level, level_info_only, FALSE);
+
+ if (level->game_engine_type == GAME_ENGINE_TYPE_UNKNOWN)
+ level->game_engine_type = GAME_ENGINE_TYPE_RND;
+
+ if (level_file_info->type != LEVEL_FILE_TYPE_RND)
+ CopyNativeLevel_Native_to_RND(level);
+}
+
+void LoadLevelFromFilename(struct LevelInfo *level, char *filename)
+{
+ static struct LevelFileInfo level_file_info;
+
+ // always start with reliable default values
+ setFileInfoToDefaults(&level_file_info);
+
+ level_file_info.nr = 0; // unknown level number
+ level_file_info.type = LEVEL_FILE_TYPE_RND; // no others supported yet
+
+ setString(&level_file_info.filename, filename);
+
+ LoadLevelFromFileInfo(level, &level_file_info, FALSE);
+}
+
+static void LoadLevel_InitVersion(struct LevelInfo *level)
+{
+ int i, j;
+
+ if (leveldir_current == NULL) // only when dumping level
+ return;
+
+ // all engine modifications also valid for levels which use latest engine
+ if (level->game_version < VERSION_IDENT(3,2,0,5))
+ {
+ // time bonus score was given for 10 s instead of 1 s before 3.2.0-5
+ level->score[SC_TIME_BONUS] /= 10;
+ }
+
+ if (leveldir_current->latest_engine)
+ {
+ // ---------- use latest game engine --------------------------------------
+
+ /* For all levels which are forced to use the latest game engine version
+ (normally all but user contributed, private and undefined levels), set
+ the game engine version to the actual version; this allows for actual
+ corrections in the game engine to take effect for existing, converted
+ levels (from "classic" or other existing games) to make the emulation
+ of the corresponding game more accurate, while (hopefully) not breaking
+ existing levels created from other players. */
+
+ level->game_version = GAME_VERSION_ACTUAL;
+
+ /* Set special EM style gems behaviour: EM style gems slip down from
+ normal, steel and growing wall. As this is a more fundamental change,
+ it seems better to set the default behaviour to "off" (as it is more
+ natural) and make it configurable in the level editor (as a property
+ of gem style elements). Already existing converted levels (neither
+ private nor contributed levels) are changed to the new behaviour. */
+
+ if (level->file_version < FILE_VERSION_2_0)
+ level->em_slippery_gems = TRUE;
+
+ return;
+ }
+
+ // ---------- use game engine the level was created with --------------------
+
+ /* For all levels which are not forced to use the latest game engine
+ version (normally user contributed, private and undefined levels),
+ use the version of the game engine the levels were created for.
+
+ Since 2.0.1, the game engine version is now directly stored
+ in the level file (chunk "VERS"), so there is no need anymore
+ to set the game version from the file version (except for old,
+ pre-2.0 levels, where the game version is still taken from the
+ file format version used to store the level -- see above). */
+
+ // player was faster than enemies in 1.0.0 and before
+ if (level->file_version == FILE_VERSION_1_0)
+ for (i = 0; i < MAX_PLAYERS; i++)
+ level->initial_player_stepsize[i] = STEPSIZE_FAST;
+
+ // default behaviour for EM style gems was "slippery" only in 2.0.1
+ if (level->game_version == VERSION_IDENT(2,0,1,0))
+ level->em_slippery_gems = TRUE;
+
+ // springs could be pushed over pits before (pre-release version) 2.2.0
+ if (level->game_version < VERSION_IDENT(2,2,0,0))
+ level->use_spring_bug = TRUE;
+
+ if (level->game_version < VERSION_IDENT(3,2,0,5))
+ {
+ // time orb caused limited time in endless time levels before 3.2.0-5
+ level->use_time_orb_bug = TRUE;
+
+ // default behaviour for snapping was "no snap delay" before 3.2.0-5
+ level->block_snap_field = FALSE;
+
+ // extra time score was same value as time left score before 3.2.0-5
+ level->extra_time_score = level->score[SC_TIME_BONUS];
+ }
+
+ if (level->game_version < VERSION_IDENT(3,2,0,7))
+ {
+ // default behaviour for snapping was "not continuous" before 3.2.0-7
+ level->continuous_snapping = FALSE;
+ }
+
+ // only few elements were able to actively move into acid before 3.1.0
+ // trigger settings did not exist before 3.1.0; set to default "any"
+ if (level->game_version < VERSION_IDENT(3,1,0,0))
+ {
+ // correct "can move into acid" settings (all zero in old levels)
+
+ level->can_move_into_acid_bits = 0; // nothing can move into acid
+ level->dont_collide_with_bits = 0; // nothing is deadly when colliding
+
+ setMoveIntoAcidProperty(level, EL_ROBOT, TRUE);
+ setMoveIntoAcidProperty(level, EL_SATELLITE, TRUE);
+ setMoveIntoAcidProperty(level, EL_PENGUIN, TRUE);
+ setMoveIntoAcidProperty(level, EL_BALLOON, TRUE);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ SET_PROPERTY(EL_CUSTOM_START + i, EP_CAN_MOVE_INTO_ACID, TRUE);
+
+ // correct trigger settings (stored as zero == "none" in old levels)
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+ struct ElementInfo *ei = &element_info[element];
+
+ for (j = 0; j < ei->num_change_pages; j++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[j];
+
+ change->trigger_player = CH_PLAYER_ANY;
+ change->trigger_page = CH_PAGE_ANY;
+ }
+ }
+ }
+
+ // try to detect and fix "Snake Bite" levels, which are broken with 3.2.0
+ {
+ int element = EL_CUSTOM_256;
+ struct ElementInfo *ei = &element_info[element];
+ struct ElementChangeInfo *change = &ei->change_page[0];
+
+ /* This is needed to fix a problem that was caused by a bugfix in function
+ game.c/CreateFieldExt() introduced with 3.2.0 that corrects the behaviour
+ when a custom element changes to EL_SOKOBAN_FIELD_PLAYER (before, it did
+ not replace walkable elements, but instead just placed the player on it,
+ without placing the Sokoban field under the player). Unfortunately, this
+ breaks "Snake Bite" style levels when the snake is halfway through a door
+ that just closes (the snake head is still alive and can be moved in this
+ case). This can be fixed by replacing the EL_SOKOBAN_FIELD_PLAYER by the
+ player (without Sokoban element) which then gets killed as designed). */
+
+ if ((strncmp(leveldir_current->identifier, "snake_bite", 10) == 0 ||
+ strncmp(ei->description, "pause b4 death", 14) == 0) &&
+ change->target_element == EL_SOKOBAN_FIELD_PLAYER)
+ change->target_element = EL_PLAYER_1;
+ }
+
+ // try to detect and fix "Zelda" style levels, which are broken with 3.2.5
+ if (level->game_version < VERSION_IDENT(3,2,5,0))
+ {
+ /* This is needed to fix a problem that was caused by a bugfix in function
+ game.c/CheckTriggeredElementChangeExt() introduced with 3.2.5 that
+ corrects the behaviour when a custom element changes to another custom
+ element with a higher element number that has change actions defined.
+ Normally, only one change per frame is allowed for custom elements.
+ Therefore, it is checked if a custom element already changed in the
+ current frame; if it did, subsequent changes are suppressed.
+ Unfortunately, this is only checked for element changes, but not for
+ change actions, which are still executed. As the function above loops
+ through all custom elements from lower to higher, an element change
+ resulting in a lower CE number won't be checked again, while a target
+ element with a higher number will also be checked, and potential change
+ actions will get executed for this CE, too (which is wrong), while
+ further changes are ignored (which is correct). As this bugfix breaks
+ Zelda II (and introduces graphical bugs to Zelda I, and also breaks a
+ few other levels like Alan Bond's "FMV"), allow the previous, incorrect
+ behaviour for existing levels and tapes that make use of this bug */
+
+ level->use_action_after_change_bug = TRUE;
+ }
+
+ // not centering level after relocating player was default only in 3.2.3
+ if (level->game_version == VERSION_IDENT(3,2,3,0)) // (no pre-releases)
+ level->shifted_relocation = TRUE;
+
+ // EM style elements always chain-exploded in R'n'D engine before 3.2.6
+ if (level->game_version < VERSION_IDENT(3,2,6,0))
+ level->em_explodes_by_fire = TRUE;
+
+ // levels were solved by the first player entering an exit up to 4.1.0.0
+ if (level->game_version <= VERSION_IDENT(4,1,0,0))
+ level->solved_by_one_player = TRUE;
+
+ // game logic of "game of life" and "biomaze" was buggy before 4.1.1.1
+ if (level->game_version < VERSION_IDENT(4,1,1,1))
+ level->use_life_bugs = TRUE;
+
+ // only Sokoban fields (but not objects) had to be solved before 4.1.1.1
+ if (level->game_version < VERSION_IDENT(4,1,1,1))
+ level->sb_objects_needed = FALSE;
+}
+
+static void LoadLevel_InitStandardElements(struct LevelInfo *level)
+{
+ int i, x, y;
+
+ // map elements that have changed in newer versions
+ level->amoeba_content = getMappedElementByVersion(level->amoeba_content,
+ level->game_version);
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (x = 0; x < 3; x++)
+ for (y = 0; y < 3; y++)
+ level->yamyam_content[i].e[x][y] =
+ getMappedElementByVersion(level->yamyam_content[i].e[x][y],
+ level->game_version);
+
+}
+
+static void LoadLevel_InitCustomElements(struct LevelInfo *level)
+{
+ int i, j;
+
+ // map custom element change events that have changed in newer versions
+ // (these following values were accidentally changed in version 3.0.1)
+ // (this seems to be needed only for 'ab_levelset3' and 'ab_levelset4')
+ if (level->game_version <= VERSION_IDENT(3,0,0,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ // order of checking and copying events to be mapped is important
+ // (do not change the start and end value -- they are constant)
+ for (j = CE_BY_OTHER_ACTION; j >= CE_VALUE_GETS_ZERO; j--)
+ {
+ if (HAS_CHANGE_EVENT(element, j - 2))
+ {
+ SET_CHANGE_EVENT(element, j - 2, FALSE);
+ SET_CHANGE_EVENT(element, j, TRUE);
+ }
+ }
+
+ // order of checking and copying events to be mapped is important
+ // (do not change the start and end value -- they are constant)
+ for (j = CE_PLAYER_COLLECTS_X; j >= CE_HITTING_SOMETHING; j--)
+ {
+ if (HAS_CHANGE_EVENT(element, j - 1))
+ {
+ SET_CHANGE_EVENT(element, j - 1, FALSE);
+ SET_CHANGE_EVENT(element, j, TRUE);
+ }
+ }
+ }
+ }
+
+ // initialize "can_change" field for old levels with only one change page
+ if (level->game_version <= VERSION_IDENT(3,0,2,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (CAN_CHANGE(element))
+ element_info[element].change->can_change = TRUE;
+ }
+ }
+
+ // correct custom element values (for old levels without these options)
+ if (level->game_version < VERSION_IDENT(3,1,1,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+ struct ElementInfo *ei = &element_info[element];
+
+ if (ei->access_direction == MV_NO_DIRECTION)
+ ei->access_direction = MV_ALL_DIRECTIONS;
+ }
+ }
+
+ // correct custom element values (fix invalid values for all versions)
+ if (1)
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+ struct ElementInfo *ei = &element_info[element];
+
+ for (j = 0; j < ei->num_change_pages; j++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[j];
+
+ if (change->trigger_player == CH_PLAYER_NONE)
+ change->trigger_player = CH_PLAYER_ANY;
+
+ if (change->trigger_side == CH_SIDE_NONE)
+ change->trigger_side = CH_SIDE_ANY;
+ }
+ }
+ }
+
+ // initialize "can_explode" field for old levels which did not store this
+ // !!! CHECK THIS -- "<= 3,1,0,0" IS PROBABLY WRONG !!!
+ if (level->game_version <= VERSION_IDENT(3,1,0,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (EXPLODES_1X1_OLD(element))
+ element_info[element].explosion_type = EXPLODES_1X1;
+
+ SET_PROPERTY(element, EP_CAN_EXPLODE, (EXPLODES_BY_FIRE(element) ||
+ EXPLODES_SMASHED(element) ||
+ EXPLODES_IMPACT(element)));
+ }
+ }
+
+ // correct previously hard-coded move delay values for maze runner style
+ if (level->game_version < VERSION_IDENT(3,1,1,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (element_info[element].move_pattern & MV_MAZE_RUNNER_STYLE)
+ {
+ // previously hard-coded and therefore ignored
+ element_info[element].move_delay_fixed = 9;
+ element_info[element].move_delay_random = 0;
+ }
+ }
+ }
+
+ // set some other uninitialized values of custom elements in older levels
+ if (level->game_version < VERSION_IDENT(3,1,0,0))
+ {
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ element_info[element].access_direction = MV_ALL_DIRECTIONS;
+
+ element_info[element].explosion_delay = 17;
+ element_info[element].ignition_delay = 8;
+ }
+ }
+}
+
+static void LoadLevel_InitElements(struct LevelInfo *level)
+{
+ LoadLevel_InitStandardElements(level);
+
+ if (level->file_has_custom_elements)
+ LoadLevel_InitCustomElements(level);
+
+ // initialize element properties for level editor etc.
+ InitElementPropertiesEngine(level->game_version);
+ InitElementPropertiesGfxElement();
+}
+
+static void LoadLevel_InitPlayfield(struct LevelInfo *level)
+{
+ int x, y;
+
+ // map elements that have changed in newer versions
+ for (y = 0; y < level->fieldy; y++)
+ for (x = 0; x < level->fieldx; x++)
+ level->field[x][y] = getMappedElementByVersion(level->field[x][y],
+ level->game_version);
+
+ // clear unused playfield data (nicer if level gets resized in editor)
+ for (x = 0; x < MAX_LEV_FIELDX; x++)
+ for (y = 0; y < MAX_LEV_FIELDY; y++)
+ if (x >= level->fieldx || y >= level->fieldy)
+ level->field[x][y] = EL_EMPTY;
+
+ // copy elements to runtime playfield array
+ for (x = 0; x < MAX_LEV_FIELDX; x++)
+ for (y = 0; y < MAX_LEV_FIELDY; y++)
+ Feld[x][y] = level->field[x][y];
+
+ // initialize level size variables for faster access
+ lev_fieldx = level->fieldx;
+ lev_fieldy = level->fieldy;
+
+ // determine border element for this level
+ if (level->file_info.type == LEVEL_FILE_TYPE_DC)
+ BorderElement = EL_EMPTY; // (in editor, SetBorderElement() is used)
+ else
+ SetBorderElement();
+}
+
+static void LoadLevel_InitNativeEngines(struct LevelInfo *level)
+{
+ struct LevelFileInfo *level_file_info = &level->file_info;
+
+ if (level_file_info->type == LEVEL_FILE_TYPE_RND)
+ CopyNativeLevel_RND_to_Native(level);
+}
+
+static void LoadLevelTemplate_LoadAndInit(void)
+{
+ LoadLevelFromFileInfo(&level_template, &level_template.file_info, FALSE);
+
+ LoadLevel_InitVersion(&level_template);
+ LoadLevel_InitElements(&level_template);
+
+ ActivateLevelTemplate();
+}
+
+void LoadLevelTemplate(int nr)
+{
+ if (!fileExists(getGlobalLevelTemplateFilename()))
+ {
+ Error(ERR_WARN, "no level template found for this level");
+
+ return;
+ }
+
+ setLevelFileInfo(&level_template.file_info, nr);
+
+ LoadLevelTemplate_LoadAndInit();
+}
+
+static void LoadNetworkLevelTemplate(struct NetworkLevelInfo *network_level)
+{
+ copyLevelFileInfo(&network_level->tmpl_info, &level_template.file_info);
+
+ LoadLevelTemplate_LoadAndInit();
+}
+
+static void LoadLevel_LoadAndInit(struct NetworkLevelInfo *network_level)
+{
+ LoadLevelFromFileInfo(&level, &level.file_info, FALSE);
+
+ if (level.use_custom_template)
+ {
+ if (network_level != NULL)
+ LoadNetworkLevelTemplate(network_level);
+ else
+ LoadLevelTemplate(-1);
+ }
+
+ LoadLevel_InitVersion(&level);
+ LoadLevel_InitElements(&level);
+ LoadLevel_InitPlayfield(&level);
+
+ LoadLevel_InitNativeEngines(&level);
+}
+
+void LoadLevel(int nr)
+{
+ SetLevelSetInfo(leveldir_current->identifier, nr);
+
+ setLevelFileInfo(&level.file_info, nr);
+
+ LoadLevel_LoadAndInit(NULL);
+}
+
+void LoadLevelInfoOnly(int nr)
+{
+ setLevelFileInfo(&level.file_info, nr);
+
+ LoadLevelFromFileInfo(&level, &level.file_info, TRUE);
+}
+
+void LoadNetworkLevel(struct NetworkLevelInfo *network_level)
+{
+ SetLevelSetInfo(network_level->leveldir_identifier,
+ network_level->file_info.nr);
+
+ copyLevelFileInfo(&network_level->file_info, &level.file_info);
+
+ LoadLevel_LoadAndInit(network_level);
+}
+
+static int SaveLevel_VERS(FILE *file, struct LevelInfo *level)
+{
+ int chunk_size = 0;
+
+ chunk_size += putFileVersion(file, level->file_version);
+ chunk_size += putFileVersion(file, level->game_version);
+
+ return chunk_size;
+}
+
+static int SaveLevel_DATE(FILE *file, struct LevelInfo *level)
+{
+ int chunk_size = 0;
+
+ chunk_size += putFile16BitBE(file, level->creation_date.year);
+ chunk_size += putFile8Bit(file, level->creation_date.month);
+ chunk_size += putFile8Bit(file, level->creation_date.day);
+
+ return chunk_size;
+}
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_HEAD(FILE *file, struct LevelInfo *level)
+{
+ int i, x, y;
+
+ putFile8Bit(file, level->fieldx);
+ putFile8Bit(file, level->fieldy);
+
+ putFile16BitBE(file, level->time);
+ putFile16BitBE(file, level->gems_needed);
+
+ for (i = 0; i < MAX_LEVEL_NAME_LEN; i++)
+ putFile8Bit(file, level->name[i]);
+
+ for (i = 0; i < LEVEL_SCORE_ELEMENTS; i++)
+ putFile8Bit(file, level->score[i]);
+
+ for (i = 0; i < STD_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile8Bit(file, (level->encoding_16bit_yamyam ? EL_EMPTY :
+ level->yamyam_content[i].e[x][y]));
+ putFile8Bit(file, level->amoeba_speed);
+ putFile8Bit(file, level->time_magic_wall);
+ putFile8Bit(file, level->time_wheel);
+ putFile8Bit(file, (level->encoding_16bit_amoeba ? EL_EMPTY :
+ level->amoeba_content));
+ putFile8Bit(file, (level->initial_player_stepsize == STEPSIZE_FAST ? 1 : 0));
+ putFile8Bit(file, (level->initial_gravity ? 1 : 0));
+ putFile8Bit(file, (level->encoding_16bit_field ? 1 : 0));
+ putFile8Bit(file, (level->em_slippery_gems ? 1 : 0));
+
+ putFile8Bit(file, (level->use_custom_template ? 1 : 0));
+
+ putFile8Bit(file, (level->block_last_field ? 1 : 0));
+ putFile8Bit(file, (level->sp_block_last_field ? 1 : 0));
+ putFile32BitBE(file, level->can_move_into_acid_bits);
+ putFile8Bit(file, level->dont_collide_with_bits);
+
+ putFile8Bit(file, (level->use_spring_bug ? 1 : 0));
+ putFile8Bit(file, (level->use_step_counter ? 1 : 0));
+
+ putFile8Bit(file, (level->instant_relocation ? 1 : 0));
+ putFile8Bit(file, (level->can_pass_to_walkable ? 1 : 0));
+ putFile8Bit(file, (level->grow_into_diggable ? 1 : 0));
+
+ putFile8Bit(file, level->game_engine_type);
+
+ WriteUnusedBytesToFile(file, LEVEL_CHUNK_HEAD_UNUSED);
+}
+#endif
+
+static int SaveLevel_NAME(FILE *file, struct LevelInfo *level)
+{
+ int chunk_size = 0;
+ int i;
+
+ for (i = 0; i < MAX_LEVEL_NAME_LEN; i++)
+ chunk_size += putFile8Bit(file, level->name[i]);
+
+ return chunk_size;
+}
+
+static int SaveLevel_AUTH(FILE *file, struct LevelInfo *level)
+{
+ int chunk_size = 0;
+ int i;
+
+ for (i = 0; i < MAX_LEVEL_AUTHOR_LEN; i++)
+ chunk_size += putFile8Bit(file, level->author[i]);
+
+ return chunk_size;
+}
+
+#if ENABLE_HISTORIC_CHUNKS
+static int SaveLevel_BODY(FILE *file, struct LevelInfo *level)
+{
+ int chunk_size = 0;
+ int x, y;
+
+ for (y = 0; y < level->fieldy; y++)
+ for (x = 0; x < level->fieldx; x++)
+ if (level->encoding_16bit_field)
+ chunk_size += putFile16BitBE(file, level->field[x][y]);
+ else
+ chunk_size += putFile8Bit(file, level->field[x][y]);
+
+ return chunk_size;
+}
+#endif
+
+static int SaveLevel_BODY(FILE *file, struct LevelInfo *level)
+{
+ int chunk_size = 0;
+ int x, y;
+
+ for (y = 0; y < level->fieldy; y++)
+ for (x = 0; x < level->fieldx; x++)
+ chunk_size += putFile16BitBE(file, level->field[x][y]);
+
+ return chunk_size;
+}
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_CONT(FILE *file, struct LevelInfo *level)
+{
+ int i, x, y;
+
+ putFile8Bit(file, EL_YAMYAM);
+ putFile8Bit(file, level->num_yamyam_contents);
+ putFile8Bit(file, 0);
+ putFile8Bit(file, 0);
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ if (level->encoding_16bit_field)
+ putFile16BitBE(file, level->yamyam_content[i].e[x][y]);
+ else
+ putFile8Bit(file, level->yamyam_content[i].e[x][y]);
+}
+#endif
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_CNT2(FILE *file, struct LevelInfo *level, int element)
+{
+ int i, x, y;
+ int num_contents, content_xsize, content_ysize;
+ int content_array[MAX_ELEMENT_CONTENTS][3][3];
+
+ if (element == EL_YAMYAM)
+ {
+ num_contents = level->num_yamyam_contents;
+ content_xsize = 3;
+ content_ysize = 3;
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ content_array[i][x][y] = level->yamyam_content[i].e[x][y];
+ }
+ else if (element == EL_BD_AMOEBA)
+ {
+ num_contents = 1;
+ content_xsize = 1;
+ content_ysize = 1;
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ content_array[i][x][y] = EL_EMPTY;
+ content_array[0][0][0] = level->amoeba_content;
+ }
+ else
+ {
+ // chunk header already written -- write empty chunk data
+ WriteUnusedBytesToFile(file, LEVEL_CHUNK_CNT2_SIZE);
+
+ Error(ERR_WARN, "cannot save content for element '%d'", element);
+ return;
+ }
+
+ putFile16BitBE(file, element);
+ putFile8Bit(file, num_contents);
+ putFile8Bit(file, content_xsize);
+ putFile8Bit(file, content_ysize);
+
+ WriteUnusedBytesToFile(file, LEVEL_CHUNK_CNT2_UNUSED);
+
+ for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, content_array[i][x][y]);
+}
+#endif
+
+#if ENABLE_HISTORIC_CHUNKS
+static int SaveLevel_CNT3(FILE *file, struct LevelInfo *level, int element)
+{
+ int envelope_nr = element - EL_ENVELOPE_1;
+ int envelope_len = strlen(level->envelope_text[envelope_nr]) + 1;
+ int chunk_size = 0;
+ int i;
+
+ chunk_size += putFile16BitBE(file, element);
+ chunk_size += putFile16BitBE(file, envelope_len);
+ chunk_size += putFile8Bit(file, level->envelope_xsize[envelope_nr]);
+ chunk_size += putFile8Bit(file, level->envelope_ysize[envelope_nr]);
+
+ WriteUnusedBytesToFile(file, LEVEL_CHUNK_CNT3_UNUSED);
+ chunk_size += LEVEL_CHUNK_CNT3_UNUSED;
+
+ for (i = 0; i < envelope_len; i++)
+ chunk_size += putFile8Bit(file, level->envelope_text[envelope_nr][i]);
+
+ return chunk_size;
+}
+#endif
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_CUS1(FILE *file, struct LevelInfo *level,
+ int num_changed_custom_elements)
+{
+ int i, check = 0;
+
+ putFile16BitBE(file, num_changed_custom_elements);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ struct ElementInfo *ei = &element_info[element];
+
+ if (ei->properties[EP_BITFIELD_BASE_NR] != EP_BITMASK_DEFAULT)
+ {
+ if (check < num_changed_custom_elements)
+ {
+ putFile16BitBE(file, element);
+ putFile32BitBE(file, ei->properties[EP_BITFIELD_BASE_NR]);
+ }
+
+ check++;
+ }
+ }
+
+ if (check != num_changed_custom_elements) // should not happen
+ Error(ERR_WARN, "inconsistent number of custom element properties");
+}
+#endif
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_CUS2(FILE *file, struct LevelInfo *level,
+ int num_changed_custom_elements)
+{
+ int i, check = 0;
+
+ putFile16BitBE(file, num_changed_custom_elements);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+
+ if (element_info[element].change->target_element != EL_EMPTY_SPACE)
+ {
+ if (check < num_changed_custom_elements)
+ {
+ putFile16BitBE(file, element);
+ putFile16BitBE(file, element_info[element].change->target_element);
+ }
+
+ check++;
+ }
+ }
+
+ if (check != num_changed_custom_elements) // should not happen
+ Error(ERR_WARN, "inconsistent number of custom target elements");
+}
+#endif
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_CUS3(FILE *file, struct LevelInfo *level,
+ int num_changed_custom_elements)
+{
+ int i, j, x, y, check = 0;
+
+ putFile16BitBE(file, num_changed_custom_elements);
+
+ for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+ {
+ int element = EL_CUSTOM_START + i;
+ struct ElementInfo *ei = &element_info[element];
+
+ if (ei->modified_settings)
+ {
+ if (check < num_changed_custom_elements)
+ {
+ putFile16BitBE(file, element);
+
+ for (j = 0; j < MAX_ELEMENT_NAME_LEN; j++)
+ putFile8Bit(file, ei->description[j]);
+
+ putFile32BitBE(file, ei->properties[EP_BITFIELD_BASE_NR]);
+
+ // some free bytes for future properties and padding
+ WriteUnusedBytesToFile(file, 7);
+
+ putFile8Bit(file, ei->use_gfx_element);
+ putFile16BitBE(file, ei->gfx_element_initial);
+
+ putFile8Bit(file, ei->collect_score_initial);
+ putFile8Bit(file, ei->collect_count_initial);
+
+ putFile16BitBE(file, ei->push_delay_fixed);
+ putFile16BitBE(file, ei->push_delay_random);
+ putFile16BitBE(file, ei->move_delay_fixed);
+ putFile16BitBE(file, ei->move_delay_random);
+
+ putFile16BitBE(file, ei->move_pattern);
+ putFile8Bit(file, ei->move_direction_initial);
+ putFile8Bit(file, ei->move_stepsize);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, ei->content.e[x][y]);
+
+ putFile32BitBE(file, ei->change->events);
+
+ putFile16BitBE(file, ei->change->target_element);
+
+ putFile16BitBE(file, ei->change->delay_fixed);
+ putFile16BitBE(file, ei->change->delay_random);
+ putFile16BitBE(file, ei->change->delay_frames);
+
+ putFile16BitBE(file, ei->change->initial_trigger_element);
+
+ putFile8Bit(file, ei->change->explode);
+ putFile8Bit(file, ei->change->use_target_content);
+ putFile8Bit(file, ei->change->only_if_complete);
+ putFile8Bit(file, ei->change->use_random_replace);
+
+ putFile8Bit(file, ei->change->random_percentage);
+ putFile8Bit(file, ei->change->replace_when);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, ei->change->content.e[x][y]);
+
+ putFile8Bit(file, ei->slippery_type);
+
+ // some free bytes for future properties and padding
+ WriteUnusedBytesToFile(file, LEVEL_CPART_CUS3_UNUSED);
+ }
+
+ check++;
+ }
+ }
+
+ if (check != num_changed_custom_elements) // should not happen
+ Error(ERR_WARN, "inconsistent number of custom element properties");
+}
+#endif
+
+#if ENABLE_HISTORIC_CHUNKS
+static void SaveLevel_CUS4(FILE *file, struct LevelInfo *level, int element)
+{
+ struct ElementInfo *ei = &element_info[element];
+ int i, j, x, y;
+
+ // ---------- custom element base property values (96 bytes) ----------------
+
+ putFile16BitBE(file, element);
+
+ for (i = 0; i < MAX_ELEMENT_NAME_LEN; i++)
+ putFile8Bit(file, ei->description[i]);
+
+ putFile32BitBE(file, ei->properties[EP_BITFIELD_BASE_NR]);
+
+ WriteUnusedBytesToFile(file, 4); // reserved for more base properties
+
+ putFile8Bit(file, ei->num_change_pages);
+
+ putFile16BitBE(file, ei->ce_value_fixed_initial);
+ putFile16BitBE(file, ei->ce_value_random_initial);
+ putFile8Bit(file, ei->use_last_ce_value);
+
+ putFile8Bit(file, ei->use_gfx_element);
+ putFile16BitBE(file, ei->gfx_element_initial);
+
+ putFile8Bit(file, ei->collect_score_initial);
+ putFile8Bit(file, ei->collect_count_initial);
+
+ putFile8Bit(file, ei->drop_delay_fixed);
+ putFile8Bit(file, ei->push_delay_fixed);
+ putFile8Bit(file, ei->drop_delay_random);
+ putFile8Bit(file, ei->push_delay_random);
+ putFile16BitBE(file, ei->move_delay_fixed);
+ putFile16BitBE(file, ei->move_delay_random);
+
+ // bits 0 - 15 of "move_pattern" ...
+ putFile16BitBE(file, ei->move_pattern & 0xffff);
+ putFile8Bit(file, ei->move_direction_initial);
+ putFile8Bit(file, ei->move_stepsize);
+
+ putFile8Bit(file, ei->slippery_type);
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ putFile16BitBE(file, ei->content.e[x][y]);
+
+ putFile16BitBE(file, ei->move_enter_element);
+ putFile16BitBE(file, ei->move_leave_element);
+ putFile8Bit(file, ei->move_leave_type);
+
+ // ... bits 16 - 31 of "move_pattern" (not nice, but downward compatible)
+ putFile16BitBE(file, (ei->move_pattern >> 16) & 0xffff);
+
+ putFile8Bit(file, ei->access_direction);
+
+ putFile8Bit(file, ei->explosion_delay);
+ putFile8Bit(file, ei->ignition_delay);
+ putFile8Bit(file, ei->explosion_type);
+
+ // some free bytes for future custom property values and padding
+ WriteUnusedBytesToFile(file, 1);
+
+ // ---------- change page property values (48 bytes) ------------------------
+
+ for (i = 0; i < ei->num_change_pages; i++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[i];
+ unsigned int event_bits;
+
+ // bits 0 - 31 of "has_event[]" ...
+ event_bits = 0;
+ for (j = 0; j < MIN(NUM_CHANGE_EVENTS, 32); j++)
+ if (change->has_event[j])
+ event_bits |= (1 << j);
+ putFile32BitBE(file, event_bits);
+
+ putFile16BitBE(file, change->target_element);
+
+ putFile16BitBE(file, change->delay_fixed);
+ putFile16BitBE(file, change->delay_random);
+ putFile16BitBE(file, change->delay_frames);
+
+ putFile16BitBE(file, change->initial_trigger_element);
+
+ putFile8Bit(file, change->explode);
+ putFile8Bit(file, change->use_target_content);
+ putFile8Bit(file, change->only_if_complete);