fast sprite rendering with quadtrees

source/transform.h

@@ -3,6 +3,7 @@
 
 #include "HandmadeMath.h"
 #include <quickjs.h>
+#include "render.h"
 
 typedef struct transform {
   HMM_Vec3 pos;
@@ -12,10 +13,12 @@ typedef struct transform {
   HMM_Mat3 cache3;
   HMM_Mat3 gcache3;
   HMM_Mat4 gcache;
+  rect rcache;
   int dirty;
   struct transform *parent;
   JSValue jsparent;
   struct transform *children;
+  JSValue *jschildren;
 } transform;
 
 transform *make_transform();
@@ -50,6 +53,7 @@ HMM_Mat3 transform2mat3(transform *t);
 
 HMM_Mat4 transform2mat4_global(transform *t);
 HMM_Mat3 transform2mat3_global(transform *t);
+rect transform2rect(transform *t);
 int transform_dirty_chain(transform *t);
 
 transform mat2transform(HMM_Mat4 m);