src/game_sp/main.c

   1
   2 #include "main_sp.h"
   3 #include "global.h"
   4
   5
   6 struct GameInfo_SP game_sp;
   7 struct LevelInfo_SP native_sp_level;
   8
   9 int GfxElementLast[SP_MAX_PLAYFIELD_WIDTH][SP_MAX_PLAYFIELD_HEIGHT];
  10 int GfxGraphicLast[SP_MAX_PLAYFIELD_WIDTH][SP_MAX_PLAYFIELD_HEIGHT];
  11 int GfxGraphic[SP_MAX_PLAYFIELD_WIDTH][SP_MAX_PLAYFIELD_HEIGHT];
  12 int GfxFrameSP[SP_MAX_PLAYFIELD_WIDTH][SP_MAX_PLAYFIELD_HEIGHT];
  13
  14
  15 void InitGameEngine_SP(void)
  16 {
  17   int x, y;
  18
  19   gfx.anim_random_frame = -1;   // (use simple, ad-hoc random numbers)
  20
  21   game_sp.level_solved = FALSE;
  22   game_sp.game_over = FALSE;
  23
  24   game_sp.time_played = 0;
  25   game_sp.infotrons_still_needed = native_sp_level.header.InfotronsNeeded;
  26   game_sp.red_disk_count = 0;
  27   game_sp.score = 0;
  28
  29   menBorder = setup.sp_show_border_elements;
  30
  31   game_sp.scroll_xoffset = (EVEN(SCR_FIELDX) ? TILEX / 2 : 0);
  32   game_sp.scroll_yoffset = (EVEN(SCR_FIELDY) ? TILEY / 2 : 0);
  33
  34   if (native_sp_level.width <= SCR_FIELDX)
  35     game_sp.scroll_xoffset = TILEX / 2;
  36   if (native_sp_level.height <= SCR_FIELDY)
  37     game_sp.scroll_yoffset = TILEY / 2;
  38
  39   for (x = 0; x < SP_MAX_PLAYFIELD_WIDTH; x++)
  40   {
  41     for (y = 0; y < SP_MAX_PLAYFIELD_HEIGHT; y++)
  42     {
  43       GfxElementLast[x][y] = -1;
  44       GfxGraphicLast[x][y] = -1;
  45       GfxGraphic[x][y] = -1;
  46       GfxFrameSP[x][y] = 0;
  47     }
  48   }
  49
  50   InitScrollPlayfield();
  51
  52   menPlay_Click();
  53 }
  54
  55 void RedrawPlayfield_SP(boolean force_redraw)
  56 {
  57   // skip redrawing playfield in warp mode or when testing tapes with "autotest"
  58   if (DrawingDeactivatedField())
  59     return;
  60
  61   if (force_redraw)
  62     RestorePlayfield();
  63
  64   UpdatePlayfield(force_redraw);
  65 }
  66
  67 static void UpdateGameDoorValues_SP(void)
  68 {
  69   game_sp.time_played = TimerVar / FRAMES_PER_SECOND;
  70   game_sp.infotrons_still_needed = InfotronsNeeded;
  71   game_sp.red_disk_count = RedDiskCount;
  72   game_sp.score = 0;            // (currently no score in Supaplex engine)
  73 }
  74
  75 void GameActions_SP(byte action[MAX_PLAYERS])
  76 {
  77   byte single_player_action = action[0];
  78   int x, y;
  79
  80   UpdateEngineValues(mScrollX / TILEX, mScrollY / TILEY,
  81                      MurphyScreenXPos / TILEX, MurphyScreenYPos / TILEY);
  82
  83   subMainGameLoop_Main(single_player_action);
  84
  85   RedrawPlayfield_SP(FALSE);
  86
  87   UpdateGameDoorValues_SP();
  88
  89   CheckSingleStepMode_SP(PlayField16[MurphyPosIndex] == fiMurphy,
  90                          HighByte(PlayField16[MurphyPosIndex]) == 0x2A);
  91
  92   for (x = DisplayMinX; x <= DisplayMaxX; x++)
  93     for (y = DisplayMinY; y <= DisplayMaxY; y++)
  94       GfxFrameSP[x][y]++;
  95 }
  96
  97 int getRedDiskReleaseFlag_SP(void)
  98 {
  99   // 0: when Murphy is moving (including the destination tile!)
 100   // 1: when Murphy is not moving for at least one game frame
 101
 102   return RedDiskReleaseFlag;
 103 }