Mercurial > repos > genjam1
view src/main.c @ 10:889227ec630c
cursor and input code added.
author | William Morgan <bill@mrgn.org> |
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date | Sun, 12 Jan 2014 16:13:49 -0800 |
parents | 3ed112d64b1b |
children | 1ee4a5c23c95 |
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#include <genesis.h> #include "creep.h" const u32 cursor_tiles[4*8] = { 0x21100000, // top left 0x10000000, 0x10000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // bottom left 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x10000000, 0x10000000, 0x21100000, 0x00000112, // top right 0x00000001, 0x00000001, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // bottom right 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000001, 0x00000001, 0x00000112, }; u16 tilemap[40*28]; u16 countdown; int cursor_x = 0; int cursor_y = 0; const int cursor_size_px = 2 * 8; // two tiles of 8 pixels each void joy_event_handler(u16 joy, u16 changed, u16 state) { u16 went_down = changed & state; if (went_down & BUTTON_UP) { cursor_y -= cursor_size_px; } if (went_down & BUTTON_DOWN) { cursor_y += cursor_size_px; } if (went_down & BUTTON_LEFT) { cursor_x -= cursor_size_px; } if (went_down & BUTTON_RIGHT) { cursor_x += cursor_size_px; } } int main(void) { JOY_init(); JOY_setEventHandler(&joy_event_handler); u8 cursor_tile_index = 1; VDP_loadTileData((const u32 *)cursor_tiles, cursor_tile_index, 4, 0); u16 i; VDP_setPlanSize(64, 32); for (i = 6; i < 40*28; i += 4) if ((i > 80 || i & 4) && (i < 40*26 || !(i & 4)) && i % 40 < 38) { tilemap[i] = 'O' + TILE_FONTINDEX; tilemap[i+1] = 'O' + TILE_FONTINDEX; } tilemap[38 + 13*40] = TILE_ATTR_FULL(1, 0, 0, 0, 'G' + TILE_FONTINDEX); tilemap[39 + 13*40] = TILE_ATTR_FULL(1, 0, 0, 0, 'G' + TILE_FONTINDEX); tilemap[38 + 14*40] = TILE_ATTR_FULL(1, 0, 0, 0, 'G' + TILE_FONTINDEX); tilemap[39 + 14*40] = TILE_ATTR_FULL(1, 0, 0, 0, 'G' + TILE_FONTINDEX); for (;;) { VDP_setSprite(0, cursor_x, cursor_y, SPRITE_SIZE(2,2), TILE_ATTR_FULL(PAL0, 1, 0, 0, cursor_tile_index), 0); VDP_waitVSync(); VDP_updateSprites(); for (i = 0; i < 28; i++) { VDP_setTileMapRectByIndex(VDP_PLAN_B, tilemap + i*40, i*64, 40, 0); } if (cur_creeps < 4) { if (countdown) --countdown; else { spawn_creep(CREEP_NORMAL, 4, 122); countdown = 300; } } } return 0; }