Rename buildings to building_factory, randomize unit place position

game/building_factory.h

@@ -0,0 +1,22 @@
+#ifndef PIXELDEFENSE_BUILDING_FACTORY_H
+#define PIXELDEFENSE_BUILDING_FACTORY_H
+
+#include <breeze.h>
+#include <flecs.h>
+
+#include "components.h"
+#include "game_tileset.h"
+
+#include "game_state.h"
+
+typedef struct Game Game;
+
+bool canPlaceBuilding(Game *game, BuildingType type, i32 tileX, i32 tileY);
+ecs_entity_t placeBuilding(Game *game, BuildingType type, i32 posX, i32 posY, Player player);
+
+void getBuildingCost(BuildingType type, i32 cost[RES_COUNT]);
+bool canAffordBuilding(BuildingType type, PlayerResources res);
+
+Vector2 getPositionNearBuilding(ecs_entity_t building, Vector2 fromPos);
+
+#endif //PIXELDEFENSE_BUILDING_FACTORY_H