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obstacle lifecycle

This commit is contained in:
t. boddy 2022-08-16 20:30:17 -04:00
parent 5ca5750834
commit d788b3931d
4 changed files with 55 additions and 13 deletions
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2
res/resources.res
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@ -9,6 +9,8 @@ IMAGE rock1r "fg/rock1r.png" FAST
IMAGE rock1b "fg/rock1b.png" FAST IMAGE rock1b "fg/rock1b.png" FAST
IMAGE rock1t "fg/rock1t.png" FAST IMAGE rock1t "fg/rock1t.png" FAST
IMAGE rock1lt "fg/rock1lt.png" FAST
IMAGE rock1rt "fg/rock1rt.png" FAST
SPRITE nitori "player/nitori.png" 4 4 FAST SPRITE nitori "player/nitori.png" 4 4 FAST

66
src/foreground.h
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@ -4,9 +4,13 @@
#define FG_W GAME_W_T + 30 #define FG_W GAME_W_T + 30
#define OBSTACLE_COUNT 8 #define OBSTACLE_COUNT 8
#define FG_SPEED FIX16(2)
#define FG_SPEED_NORM FIX16(1.414)
struct obstacle { struct obstacle {
bool active; bool active, top;
Vect2D_f16 pos; Vect2D_f16 pos;
s16 startX;
}; };
struct obstacle obstacles[OBSTACLE_COUNT]; struct obstacle obstacles[OBSTACLE_COUNT];
@ -27,24 +31,58 @@ static void drawFg(){
// obstacle // obstacle
#define OBS_CEIL_Y CEIL_Y + 4
#define OBS_FLOOR_Y FLOOR_Y - 4 #define OBS_FLOOR_Y FLOOR_Y - 4
s16 fgPos; #define OBS_X 32
s16 obsX;
static void spawnObstacle(){ s16 fgPos;
obsX = 32;
VDP_drawImageEx(BG_B, &rock1l, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32), obsX, OBS_FLOOR_Y, 0, DMA); static void spawnObstacle(bool top){
VDP_drawImageEx(BG_B, &rock1, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 48), obsX + 2, OBS_FLOOR_Y, 0, DMA); s16 i = -1;
VDP_drawImageEx(BG_B, &rock1r, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 64), obsX + 2 + 4, OBS_FLOOR_Y, 0, DMA); for(s16 j = 0; j < OBSTACLE_COUNT; j++) if(!obstacles[j].active && i == -1) i = j;
VDP_drawImageEx(BG_B, &rock1b, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 80), obsX + 2, OBS_FLOOR_Y + 4, 0, DMA); if(i > -1){
obstacles[i].active = TRUE;
obstacles[i].top = top;
obstacles[i].pos.x = FIX16(256);
obstacles[i].startX = OBS_X;
if(top){
VDP_drawImageEx(BG_B, &rock1lt, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32), OBS_X, OBS_CEIL_Y - 2, 0, DMA);
VDP_drawImageEx(BG_B, &rock1t, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 48), OBS_X + 2, OBS_CEIL_Y, 0, DMA);
VDP_drawImageEx(BG_B, &rock1rt, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 64), OBS_X + 2 + 4, OBS_CEIL_Y - 2, 0, DMA);
VDP_drawImageEx(BG_B, &rock1b, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 80), OBS_X + 2, OBS_CEIL_Y - 4, 0, DMA);
} else {
VDP_drawImageEx(BG_B, &rock1l, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 32 + 80), OBS_X, OBS_FLOOR_Y, 0, DMA);
VDP_drawImageEx(BG_B, &rock1, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 48 + 80), OBS_X + 2, OBS_FLOOR_Y, 0, DMA);
VDP_drawImageEx(BG_B, &rock1r, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 64 + 80), OBS_X + 2 + 4, OBS_FLOOR_Y, 0, DMA);
VDP_drawImageEx(BG_B, &rock1b, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 80), OBS_X + 2, OBS_FLOOR_Y + 4, 0, DMA);
}
}
}
#define OBSTACLE_MOD FIX16(8)
#define OBSTACLE_LIMIT_X FIX16(-64)
static void killObstacle(s16 i){
obstacles[i].active = FALSE;
if(obstacles[i].top){
VDP_clearTileMapRect(BG_B, obstacles[i].startX, OBS_CEIL_Y, 8, 8);
for(u8 i = 0; i < 2; i++) VDP_drawImageEx(BG_B, &rock1t, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I),obstacles[i].startX + 4 * i, CEIL_Y, 0, DMA);
} else {
VDP_clearTileMapRect(BG_B, obstacles[i].startX, OBS_FLOOR_Y, 8, 8);
for(u8 i = 0; i < 2; i++) VDP_drawImageEx(BG_B, &rock1, TILE_ATTR_FULL(PAL2, 1, 0, 0, FG_I + 16), obstacles[i].startX + 4 * i, FLOOR_Y, 0, DMA);
}
}
static void updateObstacle(s16 i){
obstacles[i].pos.x = fix16Sub(obstacles[i].pos.x, FG_SPEED);
if(obstacles[i].pos.x <= OBSTACLE_LIMIT_X){
killObstacle(i);
}
} }
// update // update
#define FG_SPEED FIX16(2)
#define FG_SPEED_NORM FIX16(1.414)
#define FG_SIZE 32 #define FG_SIZE 32
#define FG_LIMIT FIX16(-320) #define FG_LIMIT FIX16(-320)
@ -70,10 +108,12 @@ static void scrollFg(){
void loadFg(){ void loadFg(){
drawFg(); drawFg();
spawnObstacle(); spawnObstacle(FALSE);
spawnObstacle(TRUE);
} }
void updateFg(){ void updateFg(){
VDP_setHorizontalScrollTile(BG_B, 0, fgPosX, GAME_H_T, DMA); VDP_setHorizontalScrollTile(BG_B, 0, fgPosX, GAME_H_T, DMA);
scrollFg(); scrollFg();
for(s16 i = 0; i < OBSTACLE_COUNT; i++) if(obstacles[i].active) updateObstacle(i);
} }