1 files changed, 57 insertions, 0 deletions
diff --git a/src/game/layers.cpp b/src/game/layers.cpp
new file mode 100644
index 00000000..832dc766
--- /dev/null
+++ b/src/game/layers.cpp
@@ -0,0 +1,57 @@
+#include <engine/e_common_interface.h>
+#include "layers.hpp"
+
+static MAPITEM_LAYER_TILEMAP *game_layer = 0;
+static MAPITEM_GROUP *game_group = 0;
+
+static int groups_start = 0;
+static int groups_num = 0;
+static int layers_start = 0;
+static int layers_num = 0;
+
+void layers_init()
+{
+	map_get_type(MAPITEMTYPE_GROUP, &groups_start, &groups_num);
+	map_get_type(MAPITEMTYPE_LAYER, &layers_start, &layers_num);
+	
+	for(int g = 0; g < layers_num_groups(); g++)
+	{
+		MAPITEM_GROUP *group = layers_get_group(g);
+		for(int l = 0; l < group->num_layers; l++)
+		{
+			MAPITEM_LAYER *layer = layers_get_layer(group->start_layer+l);
+			
+			if(layer->type == LAYERTYPE_TILES)
+			{
+				MAPITEM_LAYER_TILEMAP *tilemap = (MAPITEM_LAYER_TILEMAP *)layer;
+				if(tilemap->flags&1)
+				{
+					game_layer = tilemap;
+					game_group = group;
+				}
+			}			
+		}
+	}
+}
+
+int layers_num_groups() { return groups_num; }
+MAPITEM_GROUP *layers_get_group(int index)
+{
+	return (MAPITEM_GROUP *)map_get_item(groups_start+index, 0, 0);
+}
+
+MAPITEM_LAYER *layers_get_layer(int index)
+{
+	return (MAPITEM_LAYER *)map_get_item(layers_start+index, 0, 0);
+}
+
+MAPITEM_LAYER_TILEMAP *layers_game_layer()
+{
+	return game_layer;
+}
+
+MAPITEM_GROUP *layers_game_group()
+{
+	return game_group;
+}
+