update ingredients.

Author: Jaxkr

combined-ingredients.md

@@ -1488,6 +1488,43 @@ export default class Enemy extends Behavior {
 }
 ```
 
+## Ray Casting
+
+```ts
+import RAPIER from "@dreamlab/vendor/rapier.ts";
+
+// in your tick or wherever needed
+let ray = new RAPIER.Ray({ x: 1.0, y: 2.0 }, { x: 0.0, y: 1.0 }); // direction of ray
+let rayDistance = 4.0;
+let solid = true; // hit inside of object if cast inside object, otherwise only treat walls as solid
+
+this.game.physics.world.castRay(
+  leftRay,
+  rayDistance,
+  solid,
+  undefined,
+  undefined,
+  // ignore a specific collider
+  this.entity.cast(CharacterController).collider,
+  undefined,
+  // or write a filter, this one ignores the left wall
+  (collider) => {
+    const entity = this.game.entities.lookupByRef(collider.userData.entityRef);
+    if (entity && entity.name === "LeftWall") return false;
+    return true;
+  },
+);
+
+// undefined positional arguments above are less common filter methods.
+
+// when raycasting from a player, you MUST filter out the player.
+
+
+if (hit) {
+  const hitEntity: Entity = this.game.entities.lookupByRef(result!.collider.userData.entityRef)!;
+}
+```
+
 ---
 
 
@@ -1622,4 +1659,11 @@ If you make changes to behavior scripts, be sure to commit your changes using th
 
 Feel free to do planning, but be concise as possible after making your code changes.
 
-After making code change tool call, please limit your response to one or two sentences. Do not give a long description of your changes after making them.
+After making code change tool call, please limit your response to one or two sentences. Do not give a long description of your changes after making them.
+
+Be sure to look at scene-description.md and pay attention to the scale of objects when ray casting! If an object's x scale is 2 and you're casting from the center of it to see if it is touching something, you should have rayDistance of 1.1 since that's a little more than half.
+
+VERY IMPORTANT: If you need any information about size/position of objects, read `scene-description.md` before starting work.
+Eg: If the user asks for a wall jump to be added to the player, check the scale of the player by reading `scene-description.md`.
+
+For efficiency, use as few find/replace tool calls as possible to accomplish your goals.