Refactor behaviour tree decorators

engine/tests/btree_test.c

@@ -117,6 +117,8 @@ void igVisualizeBTState(const BzBTNode *node, const BzBTNodeState *state, bool s
 void igRenderBT(BzBTState *state) {
     const BzBTNode *root = state->root;
     if (igBegin("BehaviourTree", NULL, 0)) {
+        igText("NodeState pool: %d", bzObjectPoolGetNumFree(nodeStatePool));
+        igSeparatorText("");
         igVisualizeBTState(root, state->_first, false, 0);
     }
     igEnd();
@@ -126,6 +128,7 @@ void render(float dt, int *game) {
     ClearBackground(WHITE);
 
     BzBTStatus status = bzBTExecute(&agentState, dt);
+    assert(status != BZ_BT_ERROR);
 
     rlImGuiBegin();
     igRenderBT(&agentState);