+ /* don't eat all CPU time */
+ Delay(10);
+#endif
+
+#endif
+ }
+
+ if (game_status != GAME_MODE_MAIN)
+ StopAnimation();
+
+ UnmapToolButtons();
+
+#if 1
+ if (global.use_envelope_request)
+ ShowEnvelopeRequest(text, ACTION_CLOSING);
+#endif
+
+#if 1
+ if (!(req_state & REQ_STAY_OPEN) && !global.use_envelope_request)
+#else
+ if (!(req_state & REQ_STAY_OPEN))
+#endif
+ {
+ CloseDoor(DOOR_CLOSE_1);
+
+ if (((old_door_state & DOOR_OPEN_1) && !(req_state & REQ_STAY_CLOSED)) ||
+ (req_state & REQ_REOPEN))
+ OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
+ }
+
+ RemapAllGadgets();
+
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ SetPanelBackground();
+ SetDrawBackgroundMask(REDRAW_DOOR_1);
+ }
+ else
+ {
+ SetDrawBackgroundMask(REDRAW_FIELD);
+ }
+
+#if defined(NETWORK_AVALIABLE)
+ /* continue network game after request */
+ if (options.network &&
+ game_status == GAME_MODE_PLAYING &&
+ req_state & REQUEST_WAIT_FOR_INPUT)
+ SendToServer_ContinuePlaying();
+#endif
+
+ /* restore deactivated drawing when quick-loading level tape recording */
+ if (tape.playing && tape.deactivate_display)
+ TapeDeactivateDisplayOn();
+
+ return result;
+}
+
+#endif
+
+static int compareDoorPartOrderInfo(const void *object1, const void *object2)
+{
+ const struct DoorPartOrderInfo *dpo1 = (struct DoorPartOrderInfo *)object1;
+ const struct DoorPartOrderInfo *dpo2 = (struct DoorPartOrderInfo *)object2;
+ int compare_result;
+
+ if (dpo1->sort_priority != dpo2->sort_priority)
+ compare_result = dpo1->sort_priority - dpo2->sort_priority;
+ else
+ compare_result = dpo1->nr - dpo2->nr;
+
+ return compare_result;
+}
+
+void InitGraphicCompatibilityInfo_Doors()
+{
+ struct
+ {
+ int door_token;
+ int part_1, part_8;
+ struct DoorInfo *door;
+ }
+ doors[] =
+ {
+ { DOOR_1, IMG_DOOR_1_GFX_PART_1, IMG_DOOR_1_GFX_PART_8, &door_1 },
+ { DOOR_2, IMG_DOOR_2_GFX_PART_1, IMG_DOOR_2_GFX_PART_8, &door_2 },
+
+ { -1, -1, -1, NULL }
+ };
+ struct Rect door_rect_list[] =
+ {
+ { DX, DY, DXSIZE, DYSIZE },
+ { VX, VY, VXSIZE, VYSIZE }
+ };
+ int i, j;
+
+ for (i = 0; doors[i].door_token != -1; i++)
+ {
+ int door_token = doors[i].door_token;
+ int door_index = DOOR_INDEX_FROM_TOKEN(door_token);
+ int part_1 = doors[i].part_1;
+ int part_8 = doors[i].part_8;
+ int part_2 = part_1 + 1;
+ int part_3 = part_1 + 2;
+ struct DoorInfo *door = doors[i].door;
+ struct Rect *door_rect = &door_rect_list[door_index];
+ boolean door_gfx_redefined = FALSE;
+
+ /* check if any door part graphic definitions have been redefined */
+
+ for (j = 0; door_part_controls[j].door_token != -1; j++)
+ {
+ struct DoorPartControlInfo *dpc = &door_part_controls[j];
+ struct FileInfo *fi = getImageListEntryFromImageID(dpc->graphic);
+
+ if (dpc->door_token == door_token && fi->redefined)
+ door_gfx_redefined = TRUE;
+ }
+
+ /* check for old-style door graphic/animation modifications */
+
+ if (!door_gfx_redefined)
+ {
+ if (door->anim_mode & ANIM_STATIC_PANEL)
+ {
+ door->panel.step_xoffset = 0;
+ door->panel.step_yoffset = 0;
+ }
+
+ if (door->anim_mode & (ANIM_HORIZONTAL | ANIM_VERTICAL))
+ {
+ struct GraphicInfo *g_part_1 = &graphic_info[part_1];
+ struct GraphicInfo *g_part_2 = &graphic_info[part_2];
+ int num_door_steps, num_panel_steps;
+
+ /* remove door part graphics other than the two default wings */
+
+ for (j = 0; door_part_controls[j].door_token != -1; j++)
+ {
+ struct DoorPartControlInfo *dpc = &door_part_controls[j];
+ struct GraphicInfo *g = &graphic_info[dpc->graphic];
+
+ if (dpc->graphic >= part_3 &&
+ dpc->graphic <= part_8)
+ g->bitmap = NULL;
+ }
+
+ /* set graphics and screen positions of the default wings */
+
+ g_part_1->width = door_rect->width;
+ g_part_1->height = door_rect->height;
+ g_part_2->width = door_rect->width;
+ g_part_2->height = door_rect->height;
+ g_part_2->src_x = door_rect->width;
+ g_part_2->src_y = g_part_1->src_y;
+
+ door->part_2.x = door->part_1.x;
+ door->part_2.y = door->part_1.y;
+
+ if (door->width != -1)
+ {
+ g_part_1->width = door->width;
+ g_part_2->width = door->width;
+
+ // special treatment for graphics and screen position of right wing
+ g_part_2->src_x += door_rect->width - door->width;
+ door->part_2.x += door_rect->width - door->width;
+ }
+
+ if (door->height != -1)
+ {
+ g_part_1->height = door->height;
+ g_part_2->height = door->height;
+
+ // special treatment for graphics and screen position of bottom wing
+ g_part_2->src_y += door_rect->height - door->height;
+ door->part_2.y += door_rect->height - door->height;
+ }
+
+ /* set animation delays for the default wings and panels */
+
+ door->part_1.step_delay = door->step_delay;
+ door->part_2.step_delay = door->step_delay;
+ door->panel.step_delay = door->step_delay;
+
+ /* set animation draw order for the default wings */
+
+ door->part_1.sort_priority = 2; /* draw left wing over ... */
+ door->part_2.sort_priority = 1; /* ... right wing */
+
+ /* set animation draw offset for the default wings */
+
+ if (door->anim_mode & ANIM_HORIZONTAL)
+ {
+ door->part_1.step_xoffset = door->step_offset;
+ door->part_1.step_yoffset = 0;
+ door->part_2.step_xoffset = door->step_offset * -1;
+ door->part_2.step_yoffset = 0;
+
+ num_door_steps = g_part_1->width / door->step_offset;
+ }
+ else // ANIM_VERTICAL
+ {
+ door->part_1.step_xoffset = 0;
+ door->part_1.step_yoffset = door->step_offset;
+ door->part_2.step_xoffset = 0;
+ door->part_2.step_yoffset = door->step_offset * -1;
+
+ num_door_steps = g_part_1->height / door->step_offset;
+ }
+
+ /* set animation draw offset for the default panels */
+
+ if (door->step_offset > 1)
+ {
+ num_panel_steps = 2 * door_rect->height / door->step_offset;
+ door->panel.start_step = num_panel_steps - num_door_steps;
+ }
+ else
+ {
+ num_panel_steps = door_rect->height / door->step_offset;
+ door->panel.start_step = num_panel_steps - num_door_steps / 2;
+ door->panel.step_delay *= 2;
+ }
+ }
+ }
+ }
+}
+
+void InitDoors()
+{
+ int i;
+
+ for (i = 0; door_part_controls[i].door_token != -1; i++)
+ {
+ struct DoorPartControlInfo *dpc = &door_part_controls[i];
+ struct DoorPartOrderInfo *dpo = &door_part_order[i];
+
+ /* initialize "start_step_opening" and "start_step_closing", if needed */
+ if (dpc->pos->start_step_opening == 0 &&
+ dpc->pos->start_step_closing == 0)
+ {
+ // dpc->pos->start_step_opening = dpc->pos->start_step;
+ dpc->pos->start_step_closing = dpc->pos->start_step;
+ }
+
+ /* fill structure for door part draw order (sorted below) */
+ dpo->nr = i;
+ dpo->sort_priority = dpc->pos->sort_priority;
+
+#if 0
+ struct DoorPartPosInfo *pos = dpc->pos;
+
+ printf(":0: step_xoffset == %d, step_yoffset == %d\n",
+ pos->step_xoffset, pos->step_yoffset);
+#endif
+ }
+
+ /* sort door part controls according to sort_priority and graphic number */
+ qsort(door_part_order, MAX_DOOR_PARTS,
+ sizeof(struct DoorPartOrderInfo), compareDoorPartOrderInfo);
+}
+
+unsigned int OpenDoor(unsigned int door_state)
+{
+ if (door_state & DOOR_COPY_BACK)
+ {
+#if 1
+ if (door_state & DOOR_OPEN_1)
+ BlitBitmap(bitmap_db_door_1, bitmap_db_door_1,
+ 1 * DXSIZE, 0, DXSIZE, DYSIZE, 0 * DXSIZE, 0);
+
+ if (door_state & DOOR_OPEN_2)
+ BlitBitmap(bitmap_db_door_2, bitmap_db_door_2,
+ 1 * VXSIZE, 0, VXSIZE, VYSIZE, 0 * VXSIZE, 0);
+#else
+ if (door_state & DOOR_OPEN_1)
+ BlitBitmap(bitmap_db_door, bitmap_db_door,
+ DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY1, DXSIZE, DYSIZE,
+ DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
+
+ if (door_state & DOOR_OPEN_2)
+ BlitBitmap(bitmap_db_door, bitmap_db_door,
+ DOOR_GFX_PAGEX2, DOOR_GFX_PAGEY2, VXSIZE, VYSIZE,
+ DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2);
+#endif
+
+ door_state &= ~DOOR_COPY_BACK;
+ }
+
+ return MoveDoor(door_state);
+}
+
+unsigned int CloseDoor(unsigned int door_state)
+{
+ unsigned int old_door_state = GetDoorState();
+
+ if (!(door_state & DOOR_NO_COPY_BACK))
+ {
+#if 1
+ if (old_door_state & DOOR_OPEN_1)
+ BlitBitmap(backbuffer, bitmap_db_door_1,
+ DX, DY, DXSIZE, DYSIZE, 0, 0);
+
+ if (old_door_state & DOOR_OPEN_2)
+ BlitBitmap(backbuffer, bitmap_db_door_2,
+ VX, VY, VXSIZE, VYSIZE, 0, 0);
+#else
+ if (old_door_state & DOOR_OPEN_1)
+ BlitBitmap(backbuffer, bitmap_db_door,
+ DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
+
+ if (old_door_state & DOOR_OPEN_2)
+ BlitBitmap(backbuffer, bitmap_db_door,
+ VX, VY, VXSIZE, VYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2);
+#endif
+
+ door_state &= ~DOOR_NO_COPY_BACK;
+ }
+
+ return MoveDoor(door_state);
+}
+
+unsigned int GetDoorState()
+{
+ return MoveDoor(DOOR_GET_STATE);
+}
+
+unsigned int SetDoorState(unsigned int door_state)
+{
+ return MoveDoor(door_state | DOOR_SET_STATE);
+}
+
+#if 1
+
+// ========== TEST 1 ===========================================================
+
+int euclid(int a, int b)
+{
+ return (b ? euclid(b, a % b) : a);
+}
+
+unsigned int MoveDoor(unsigned int door_state)
+{
+#if 0
+ struct XY panel_pos_list[] =
+ {
+ { DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1 },
+ { DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY2 },
+ };
+#endif
+ struct Rect door_rect_list[] =
+ {
+ { DX, DY, DXSIZE, DYSIZE },
+ { VX, VY, VXSIZE, VYSIZE }
+ };
+ static int door1 = DOOR_OPEN_1;
+ static int door2 = DOOR_CLOSE_2;
+ unsigned int door_delay = 0;
+ unsigned int door_delay_value;
+ int i;
+
+#if 1
+ if (door_1.width < 0 || door_1.width > DXSIZE)
+ door_1.width = DXSIZE;
+ if (door_1.height < 0 || door_1.height > DYSIZE)
+ door_1.height = DYSIZE;
+ if (door_2.width < 0 || door_2.width > VXSIZE)
+ door_2.width = VXSIZE;
+ if (door_2.height < 0 || door_2.height > VYSIZE)
+ door_2.height = VYSIZE;