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Make collider retrieving more permissive

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This commit is contained in:
Klemen Plestenjak
2023-11-09 09:49:14 +01:00
parent ced7aa2ea5
commit 6cc3ce9750
3 changed files with 22 additions and 23 deletions
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24
engine/breeze/world/map.c
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@@ -276,28 +276,10 @@ void bzTileMapDrawColliders(BzTileMap *map) {
}
}
bool bzTileMapCanPlace(BzTileMap *map, i32 tileX, i32 tileY, i32 sizeX, i32 sizeY) {
for (i32 y = tileY; y < tileY + sizeY; y++) {
for (i32 x = tileX; x < tileX + sizeX; x++) {
for (i32 i = 0; i < map->layerCount; i++) {
BzTileLayer *layer = map->layers + i;
if (layer->tilesetIdx == -1) continue;
BzTileset *tileset = map->tilesets + layer->tilesetIdx;
i16 tile = bzTileLayerGetTile(layer, x, y);
BzTileShape collider = bzTilesetGetTileCollider(tileset, tile);
if (collider.type != BZ_TILE_SHAPE_NONE)
return false;
}
}
}
return true;
}
BzTileCollider bzTileMapGetCollider(BzTileMap *map, i32 x, i32 y) {
i32 idx = y * map->width + x;
BZ_ASSERT(idx < 0 && idx < map->collidersCount);
if (idx < 0 || idx >= map->collidersCount) {
return (BzTileCollider) {{BZ_TILE_SHAPE_NONE}};
}
return map->colliderMap[idx];
}

1
engine/breeze/world/map.h
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@@ -95,7 +95,6 @@ void bzTileMapDestroy(BzTileMap *tilemap);
void bzTileMapDraw(BzTileMap *map);
void bzTileMapDrawColliders(BzTileMap *map);
bool bzTileMapCanPlace(BzTileMap *map, i32 tileX, i32 tileY, i32 sizeX, i32 sizeY);
BzTileCollider bzTileMapGetCollider(BzTileMap *map, i32 x, i32 y);

20
game/main.c
View File

@@ -27,6 +27,24 @@ bool handleGameObjects(BzTileObjectLayer *objectLayer) {
return false;
}
bool canBuildOn(BzTileMap *map, i32 tileX, i32 tileY, i32 sizeX, i32 sizeY) {
// Need to check neighbour tiles
tileX -= 1;
tileY -= 1;
sizeX += 2;
sizeY += 2;
for (i32 y = tileY; y < tileY + sizeY; y++) {
for (i32 x = tileX; x < tileX + sizeX; x++) {
BzTileCollider collider = bzTileMapGetCollider(map, x, y);
if (collider.shapes[0].type != BZ_TILE_SHAPE_NONE) return false;
}
}
return true;
}
bool init(Game *game) {
int screenWidth = 1280;
int screenHeight = 720;
@@ -100,7 +118,7 @@ void render(float dt, Game *game) {
if (tileX != 0 && tileY != 0) {
bool canPlace = bzTileMapCanPlace(&game->map, tileX, tileY, sizeX, sizeY);
bool canPlace = canBuildOn(&game->map, tileX, tileY, sizeX, sizeY);
Color placeColor = canPlace ?
(Color) {0, 255, 0, 200} :
(Color) {255, 0, 0, 200};