src/main.c

   1 #include <genesis.h>
   2
   3 #include "spr.h"
   4 #include "tiles.h"
   5 #include "audio.h"
   6 #include "map.h"
   7 #include "thing.h"
   8 #include "player.h"
   9 #include "maps.h"
  10
  11 u16 g_ticker = 0;
  12
  13 static map_t maps[] = {
  14   DEFINE_MAP(0, 9, 63, map_map01),
  15 };
  16
  17 static void do_input(void) {
  18   u16 value1 = JOY_readJoypad(JOY_1);
  19   u16 value2 = JOY_readJoypad(JOY_2);
  20   plr_controls(th_player[0], value1);
  21   plr_controls(th_player[1], value2);
  22 }
  23
  24 static inline void update_scroll(void) {
  25   for (u16 i = 0; i < num_players; ++i) {
  26     VDP_setHorizontalScroll(g_cam[i].planeidx, -g_cam[i].x);
  27     VDP_setVerticalScroll(g_cam[i].planeidx, g_cam[i].y);
  28   }
  29 }
  30
  31 #pragma GCC diagnostic ignored "-Wmain"
  32
  33 int main(u16 hard_reset) {
  34   if (!hard_reset)
  35     SYS_hardReset();
  36
  37   SYS_disableInts();
  38
  39   VDP_setScreenWidth320();
  40   VDP_setPaletteColors(0, (u16*)palette_black, 64);
  41
  42   num_players = 2;
  43
  44   spr_startup();
  45   tiles_startup();
  46   snd_startup();
  47   map_startup();
  48
  49   map_load(maps + 0);
  50
  51   th_player[0] = thing_spawn(TH_PLAYER, 40, 480, -1, &g_things[0]);
  52   th_player[1] = thing_spawn(TH_PLAYER, 40, 480, -1, &g_things[0]);
  53
  54   g_cam[0].flags = g_cam[1].flags = 1;
  55
  56   SPR_update();
  57   update_scroll();
  58   map_update();
  59   DMA_waitCompletion();
  60
  61   SYS_enableInts();
  62
  63   snd_play_music(0);
  64
  65   while (1) {
  66     do_input();
  67
  68     if (g_ticker & 1) {
  69       things_think();
  70       things_remove();
  71       map_update();
  72       things_draw();
  73       SPR_update();
  74     }
  75
  76     ++g_ticker;
  77     SYS_doVBlankProcess();
  78     update_scroll();
  79   }
  80
  81   return 0;
  82 }