diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/entity.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/entity.c b/src/entity.c new file mode 100644 index 0000000..9fc582c --- /dev/null +++ b/src/entity.c @@ -0,0 +1,202 @@ +#include "entity.h" +#include "map_manager.h" +#include "player.h" +#include "raymath.h" +#include "globals.h" +#include <stdlib.h> +#include <string.h> + +EntityManager InitEntityManager(uint32_t maxPerType) { + EntityManager mgr; + mgr.enemies = (Enemy *)calloc(maxPerType, sizeof(Enemy)); + mgr.collectibles = (Collectible *)calloc(maxPerType, sizeof(Collectible)); + mgr.movables = (Movable *)calloc(maxPerType, sizeof(Movable)); + mgr.statics = (Static *)calloc(maxPerType, sizeof(Static)); + + mgr.enemiesCount = 0; + mgr.collectiblesCount = 0; + mgr.movablesCount = 0; + mgr.staticsCount = 0; + + return mgr; +} + +void SpawnEntitiesFromMap(EntityManager *mgr, TmxMap *map) { + for (uint32_t i = 0; i < map->layersLength; i++) { + TmxLayer *layer = &map->layers[i]; + + // Handle Tile Layer Pickups + if (layer->type == LAYER_TYPE_TILE_LAYER && + (strcmp(layer->name, "Pickups") == 0 || strcmp(layer->name, "Collectible") == 0)) { + TmxTileLayer *tileLayer = &layer->exact.tileLayer; + for (uint32_t y = 0; y < tileLayer->height; y++) { + for (uint32_t x = 0; x < tileLayer->width; x++) { + uint32_t gid = tileLayer->tiles[y * tileLayer->width + x]; + if (gid != 0) { + float px = (float)x * map->tileWidth; + float py = (float)y * map->tileHeight; + + // Default bounds (whole tile) + Rectangle customBounds = { px, py, (float)map->tileWidth, (float)map->tileHeight }; + + // Check if the tile has a custom collision shape from Tileset Editor + if (gid < map->gidsToTilesLength) { + TmxTile tileData = map->gidsToTiles[gid]; + + // Use the first animation frame's collision if it exists + uint32_t targetGid = gid; + if (tileData.hasAnimation && tileData.animation.framesLength > 0) { + targetGid = tileData.animation.frames[0].gid; + } + + // Look up tile data for the frame (accounting for local vs global IDs) + // Note: raytmx internal gidsToTiles uses global IDs + if (targetGid < map->gidsToTilesLength) { + TmxObjectGroup colGroup = map->gidsToTiles[targetGid].objectGroup; + if (colGroup.objectsLength > 0) { + TmxObject colObj = colGroup.objects[0]; + customBounds = (Rectangle){ + px + (float)colObj.x, + py + (float)colObj.y, + (float)colObj.width, + (float)colObj.height + }; + } + } + } + + mgr->collectibles[mgr->collectiblesCount++] = (Collectible){ + .position = {px, py}, + .bounds = customBounds, + .active = true, + .gid = gid, + .tileX = (int)x, + .tileY = (int)y + }; + } + } + } + } + + if (layer->type != LAYER_TYPE_OBJECT_GROUP) + continue; + + TmxObjectGroup group = layer->exact.objectGroup; + + if (strcmp(layer->name, "Static") == 0) { + for (uint32_t j = 0; j < group.objectsLength; j++) { + TmxObject object = group.objects[j]; + mgr->statics[mgr->staticsCount++] = + (Static){.position = {(float)object.x, (float)object.y}, + .bounds = {(float)object.x, (float)object.y, + (float)object.width, (float)object.height}, + .active = true, + .gid = object.gid}; + } + } + if (strcmp(layer->name, "Movable") == 0) { + for (uint32_t j = 0; j < group.objectsLength; j++) { + TmxObject object = group.objects[j]; + mgr->movables[mgr->movablesCount++] = + (Movable){.position = {(float)object.x, (float)object.y}, + .bounds = {(float)object.x, (float)object.y, + (float)object.width, (float)object.height}, + .active = true, + .gid = object.gid}; + } + } + if (strcmp(layer->name, "Collectible") == 0) { + for (uint32_t j = 0; j < group.objectsLength; j++) { + TmxObject object = group.objects[j]; + mgr->collectibles[mgr->collectiblesCount++] = + (Collectible){.position = {(float)object.x, (float)object.y}, + .bounds = {(float)object.x, (float)object.y, + (float)object.width, (float)object.height}, + .active = true, + .gid = object.gid}; + } + } + if (strcmp(layer->name, "Enemy") == 0) { + for (uint32_t j = 0; j < group.objectsLength; j++) { + TmxObject object = group.objects[j]; + mgr->enemies[mgr->enemiesCount++] = + (Enemy){.position = {(float)object.x, (float)object.y}, + .bounds = {(float)object.x, (float)object.y, + (float)object.width, (float)object.height}, + .active = true, + .gid = object.gid}; + } + } + } +} + +void UpdateEntities(EntityManager *mgr, Player *player, MapManager *mapMgr) { + // 1. Update Pickups (Collision only) + for (int i = 0; i < mgr->collectiblesCount; i++) { + if (mgr->collectibles[i].active && + CheckCollisionRecs(player->bounds, mgr->collectibles[i].bounds)) { + mgr->collectibles[i].active = false; + + // Visually remove from map if it's a tile pickup + if (mapMgr->pickupLayer && mapMgr->pickupLayer->type == LAYER_TYPE_TILE_LAYER) { + TmxTileLayer *tileLayer = &mapMgr->pickupLayer->exact.tileLayer; + int idx = mgr->collectibles[i].tileY * tileLayer->width + mgr->collectibles[i].tileX; + if (idx >= 0 && idx < (int)tileLayer->tilesLength) { + tileLayer->tiles[idx] = 0; + } + } + } + } + + // 2. Update Movables (Physics/Pushing) + for (int i = 0; i < mgr->movablesCount; i++) { + Movable *m = &mgr->movables[i]; + if (CheckCollisionRecs(player->bounds, m->bounds)) { + // Push logic: move the block in player's direction if no wall is there + Vector2 pushDir = + Vector2Normalize(Vector2Subtract(m->position, player->position)); + Vector2 nextPos = Vector2Add( + m->position, Vector2Scale(pushDir, player->speed * GetFrameTime())); + Rectangle nextRect = {nextPos.x, nextPos.y, m->bounds.width, + m->bounds.height}; + + if (!IsWallCollision(mapMgr, nextRect)) { + m->position = nextPos; + m->bounds.x = nextPos.x; + m->bounds.y = nextPos.y; + } + } + } + + // 3. Update Enemies (AI) + for (int i = 0; i < mgr->enemiesCount; i++) { + if (!mgr->enemies[i].active) + continue; + // Basic AI: Move toward player if within range + if (Vector2Distance(mgr->enemies[i].position, player->position) < 100.0f) { + Vector2 dir = Vector2Normalize( + Vector2Subtract(player->position, mgr->enemies[i].position)); + mgr->enemies[i].position = Vector2Add( + mgr->enemies[i].position, Vector2Scale(dir, 50.0f * GetFrameTime())); + mgr->enemies[i].bounds.x = mgr->enemies[i].position.x; + mgr->enemies[i].bounds.y = mgr->enemies[i].position.y; + } + } +} + +void UnloadEntityManager(EntityManager *mgr) { + if (mgr->enemies) free(mgr->enemies); + if (mgr->collectibles) free(mgr->collectibles); + if (mgr->movables) free(mgr->movables); + if (mgr->statics) free(mgr->statics); + + mgr->enemies = NULL; + mgr->collectibles = NULL; + mgr->movables = NULL; + mgr->statics = NULL; + + mgr->enemiesCount = 0; + mgr->collectiblesCount = 0; + mgr->movablesCount = 0; + mgr->staticsCount = 0; +} |