* behaviour.
*/
+#define GET_BE16(x) ((&x)[0] << 8 | (&x)[1])
+#define PUT_BE16(x, y) {(&x)[0] = (y) >> 8; (&x)[1] = (y) & 0xff;}
+
static const short map_emc[256] =
{
Xstone, Xstone, Xdiamond, Xdiamond,
Xblank, Xblank, Xalpha_copyr, Xfake_acid_1
};
-static int get_em_element(unsigned short em_element_raw, int file_version)
-{
- int em_element = map_emc[em_element_raw];
-
- if (file_version < FILE_VERSION_EM_V5)
- {
- /* versions below V5 had no grass, but only sand/dirt */
- if (em_element == Xgrass)
- em_element = Xdirt;
- }
-
- return em_element;
-}
-
void convert_em_level(unsigned char *src, int file_version)
{
static int eater_offset[8] =
};
int i, x, y, temp;
- lev.time_seconds = src[2110] << 8 | src[2111];
+ /* common to all emc caves */
+
+ lev.time_seconds = GET_BE16(src[2110]);
if (lev.time_seconds > 9999)
lev.time_seconds = 9999;
lev.required_initial = src[2095];
- for (i = 0; i < 2; i++)
- {
- temp = src[2096 + i * 2] << 8 | src[2097 + i * 2];
- ply[i].x_initial = (temp & 63);
- ply[i].y_initial = (temp >> 6 & 31);
- }
-
- temp = (src[2100] << 8 | src[2101]) * 28;
- if (temp > 9999)
- temp = 9999;
- lev.amoeba_time = temp;
-
- lev.android_move_time = src[2164] << 8 | src[2165];
- lev.android_clone_time = src[2166] << 8 | src[2167];
-
- lev.ball_random = src[2162] & 1 ? 1 : 0;
- lev.ball_state_initial = src[2162] & 128 ? 1 : 0;
- lev.ball_time = src[2160] << 8 | src[2161];
+ /* scores */
lev.emerald_score = src[2084];
lev.diamond_score = src[2085];
lev.magnify_score = src[2152];
lev.slurp_score = src[2153];
- lev.lenses_time = src[2154] << 8 | src[2155];
- lev.magnify_time = src[2156] << 8 | src[2157];
- lev.wheel_time = src[2104] << 8 | src[2105];
+ /* times */
+
+ lev.android_move_time = GET_BE16(src[2164]);
+ lev.android_clone_time = GET_BE16(src[2166]);
+ lev.ball_time = GET_BE16(src[2160]);
+
+ lev.lenses_time = GET_BE16(src[2154]);
+ lev.magnify_time = GET_BE16(src[2156]);
+ lev.wheel_time = GET_BE16(src[2104]);
+
+ temp = GET_BE16(src[2100]) * 28;
+ if (temp > 9999)
+ temp = 9999;
+ lev.amoeba_time = temp;
+
+ lev.wonderwall_time_initial = GET_BE16(src[2102]);
lev.wind_cnt_initial = src[2149] & 15 ? lev.wind_time : 0;
temp = src[2149];
temp & 1 ? 1 :
temp & 2 ? 2 :
temp & 4 ? 3 : 0);
+ /* global flags */
+
+ lev.ball_random = src[2162] & 1 ? 1 : 0;
+ lev.ball_state_initial = src[2162] & 128 ? 1 : 0;
+
+ for (temp = 1; temp < 2047; temp++)
+ {
+ switch (src[temp])
+ {
+ case 36: /* wonderwall */
+ lev.wonderwall_state_initial = 1;
+ lev.wonderwall_time_initial = 9999;
+ break;
+
+ case 40: /* wheel */
+ lev.wheel_x_initial = temp & 63;
+ lev.wheel_y_initial = temp >> 6;
+ lev.wheel_cnt_initial = lev.wheel_time;
+ break;
+
+ case 163: /* fake blank */
+ lev.lenses_cnt_initial = 9999;
+ break;
+
+ case 164: /* fake grass */
+ lev.magnify_cnt_initial = 9999;
+ break;
+ }
+ }
+
+ /* android */
+
+ temp = GET_BE16(src[2168]);
+
+ lev.android_emerald = (temp & 1) != 0;
+ lev.android_diamond = (temp & 2) != 0;
+ lev.android_stone = (temp & 4) != 0;
+ lev.android_bomb = (temp & 8) != 0;
+ lev.android_nut = (temp & 16) != 0;
+ lev.android_tank = (temp & 32) != 0;
+ lev.android_eater = (temp & 64) != 0;
+ lev.android_bug = (temp & 128) != 0;
+ lev.android_alien = (temp & 256) != 0;
+ lev.android_spring = (temp & 512) != 0;
+ lev.android_balloon = (temp & 1024) != 0;
+ lev.android_amoeba = (temp & 2048) != 0;
+ lev.android_dynamite = (temp & 4096) != 0;
- lev.wonderwall_time_initial = src[2102] << 8 | src[2103];
+ /* eaters */
for (i = 0; i < 8; i++)
for (x = 0; x < 9; x++)
- lev.eater_array[i][x] =
- get_em_element(src[eater_offset[i] + x], file_version);
+ lev.eater_array[i][x] = map_emc[src[eater_offset[i] + x]];
+
+ /* ball */
+
+ temp = map_emc[src[2159]];
- temp = get_em_element(src[2159], file_version);
for (y = 0; y < 8; y++)
{
if (src[2162] & 1)
}
}
- temp = src[2168] << 8 | src[2169];
+ /* players */
- lev.android_emerald = (temp & 1) != 0;
- lev.android_diamond = (temp & 2) != 0;
- lev.android_stone = (temp & 4) != 0;
- lev.android_bomb = (temp & 8) != 0;
- lev.android_nut = (temp & 16) != 0;
- lev.android_tank = (temp & 32) != 0;
- lev.android_eater = (temp & 64) != 0;
- lev.android_bug = (temp & 128) != 0;
- lev.android_alien = (temp & 256) != 0;
- lev.android_spring = (temp & 512) != 0;
- lev.android_balloon = (temp & 1024) != 0;
- lev.android_amoeba = (temp & 2048) != 0;
- lev.android_dynamite = (temp & 4096) != 0;
-
- for (temp = 1; temp < 2047; temp++)
+ for (i = 0; i < 2; i++)
{
- switch (src[temp])
- {
- case 36: /* wonderwall */
- lev.wonderwall_state_initial = 1;
- lev.wonderwall_time_initial = 9999;
- break;
-
- case 40: /* wheel */
- lev.wheel_x_initial = temp & 63;
- lev.wheel_y_initial = temp >> 6;
- lev.wheel_cnt_initial = lev.wheel_time;
- break;
+ temp = GET_BE16(src[2096 + i * 2]);
- case 163: /* fake blank */
- lev.lenses_cnt_initial = 9999;
- break;
-
- case 164: /* fake grass */
- lev.magnify_cnt_initial = 9999;
- break;
- }
+ ply[i].x_initial = (temp & 63);
+ ply[i].y_initial = (temp >> 6 & 31);
}
+ /* cave */
+
/* first fill the complete playfield with the default border element */
for (y = 0; y < CAVE_HEIGHT; y++)
for (x = 0; x < CAVE_WIDTH; x++)
temp = 0;
for (y = 0; y < lev.height; y++)
for (x = 0; x < lev.width; x++)
- native_em_level.cave[x][y] =
- get_em_element(src[temp++], file_version);
+ native_em_level.cave[x][y] = map_emc[src[temp++]];
/* at last, set the two players at their positions in the playfield */
/* (native EM[C] levels always have exactly two players in a level) */
* wrong bug(24 instead of 20) and tank(12 instead of 8).
*/
+/* changes for game engine integration in Rocks'n'Diamonds:
+ *
+ * cave versions below V5 had no grass, but only sand/dirt
+ * - object code 130 (V6 grass) is changed to 189 (V6 dirt)
+ * - object codes are changed in both cave and eater arrays
+ * - only graphical change, as both objects behave the same
+ */
+
static const unsigned char map_v6[256] =
{
/* filter for v6 */
153,153,153,153, 153,153,153,153, 153,153,153,153, 153,153,153,153,
153,118,114,115, 131,118,118,119, 120,121,122,118, 118,118,118,118,
- 128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
+ 128,129,189,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
144,145,146,147, 148,149,150,151, 152,68,154,155, 156,157,158,160,
160,160,160,160, 160,160,160,160, 160,160,160,160, 160,160,160,175,
153,153,153,153, 153,153,153,153, 153,153,153,153, 153,153,68,153,
{
/* filter for v4 eater */
- 128,18,2,0, 4,8,16,20, 28,37,41,45, 130,129,131,132,
+ 128,18,2,0, 4,8,16,20, 28,37,41,45, 189,129,131,132,
133,134,135,136, 146,147,175,65, 66,64,2,18, 128,128,128,128
};
/* player 1 pos */
src[2096] &= 7;
- src[src[2096] << 8 | src[2097]] = 128;
+ src[GET_BE16(src[2096])] = 128;
/* player 2 pos */
src[2098] &= 7;
- src[src[2098] << 8 | src[2099]] = 128;
+ src[GET_BE16(src[2098])] = 128;
/* amoeba speed */
- if ((src[2100] << 8 | src[2101]) > 9999)
- {
- src[2100] = 39;
- src[2101] = 15;
- }
+ if (GET_BE16(src[2100]) > 9999)
+ PUT_BE16(src[2100], 9999);
/* time wonderwall */
- if ((src[2102] << 8 | src[2103]) > 9999)
- {
- src[2102] = 39;
- src[2103] = 15;
- }
+ if (GET_BE16(src[2102]) > 9999)
+ PUT_BE16(src[2102], 9999);
/* time */
- if ((src[2110] << 8 | src[2111]) > 9999)
- {
- src[2110] = 39;
- src[2111] = 15;
- }
+ if (GET_BE16(src[2110]) > 9999)
+ PUT_BE16(src[2110], 9999);
/* wind direction */
i = src[2149];
src[2149] = i;
/* time lenses */
- if ((src[2154] << 8 | src[2155]) > 9999)
- {
- src[2154] = 39;
- src[2155] = 15;
- }
+ if (GET_BE16(src[2154]) > 9999)
+ PUT_BE16(src[2154], 9999);
/* time magnify */
- if ((src[2156] << 8 | src[2157]) > 9999)
- {
- src[2156] = 39;
- src[2157] = 15;
- }
+ if (GET_BE16(src[2156]) > 9999)
+ PUT_BE16(src[2156], 9999);
/* ball object */
src[2158] = 0;
src[2159] = map_v6[src[2159]];
/* ball pause */
- if ((src[2160] << 8 | src[2161]) > 9999)
- {
- src[2160] = 39;
- src[2161] = 15;
- }
+ if (GET_BE16(src[2160]) > 9999)
+ PUT_BE16(src[2160], 9999);
/* ball data */
src[2162] &= 129;
src[2163] = 0;
/* android move pause */
- if ((src[2164] << 8 | src[2165]) > 9999)
- {
- src[2164] = 39;
- src[2165] = 15;
- }
+ if (GET_BE16(src[2164]) > 9999)
+ PUT_BE16(src[2164], 9999);
/* android clone pause */
- if ((src[2166] << 8 | src[2167]) > 9999)
- {
- src[2166] = 39;
- src[2167] = 15;
- }
+ if (GET_BE16(src[2166]) > 9999)
+ PUT_BE16(src[2166], 9999);
/* android data */
src[2168] &= 31;
projects / rocksndiamonds.git / blobdiff