libstage: add {position,aabb}_map concept to stage

I added a way to set these mappings per-node, but not per-stage.

This adds setters for the stage, and new nodes are created with
the current per-stage setting.  The nodes may still have their
mapping mode changed independent of the stage and one another, but
this gives a means of easily setting a global mapping mode for a
given stage.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/stage.c b/src/stage.c
index 1cb3995..cc8f618 100644
--- a/src/stage.c
+++ b/src/stage.c
@@ -58,6 +58,8 @@ struct stage_t {
 	float		aspect_ratio;		/* width/height ratio of stage, -1.0...1.0 range of node coordinates map to this ratio. */
 	v2f_t		position;		/* position of the stage (defaults to 0,0) */
 	float		alpha;			/* alpha to apply to all nodes */
+	stage_map_t	aabb_map;		/* aabb map for the stage, nodes inherit this setting at create time */
+	stage_map_t	position_map;		/* position map for the stage, nodes inherit this setting at create time */
 };
 
 
@@ -106,6 +108,8 @@ stage_node_t * stage_node_new(stage_t *stage, int layer, const char *name, void
 	if (!node)
 		return NULL;
 
+	node->aabb_map = stage->aabb_map;
+	node->position_map = stage->position_map;
 	list_add_tail(&node->nodes, &stage->layers[layer]);
 
 	return node;
@@ -378,6 +382,20 @@ void stage_get_position(stage_t *stage, v2f_t *res_position)
 }
 
 
+/* set the aabb mapping for the stage */
+void stage_set_aabb_map(stage_t *stage, stage_map_t map)
+{
+	stage->aabb_map = map;
+}
+
+
+/* set the position mapping for the stage */
+void stage_set_position_map(stage_t *stage, stage_map_t map)
+{
+	stage->position_map = map;
+}
+
+
 static void map_stage_rect(const stage_t *stage, const SDL_Rect *stage_rect, stage_map_t map, float *res_w, float *res_h)
 {
 	switch (map) {