update

physics_raycast/README.md

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+- Keyboard `L/R` Rotate cone
+- Mouse `L` Raycast in cone direction
+
+https://github.com/leenkx3d/leenkx/wiki/physics#raycast

physics_raycast/Sources/lnx/RayCastTrait.hx

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+package lnx;
+
+import leenkx.trait.physics.PhysicsWorld;
+
+class RayCastTrait extends iron.Trait {
+
+    var q = new iron.math.Quat();
+
+    public function new() {
+        super();
+        
+        var mouse = iron.system.Input.getMouse();
+        var keyboard = iron.system.Input.getKeyboard();
+
+        notifyOnUpdate(function() {
+
+            if (mouse.down()) {
+                var physics = PhysicsWorld.active;
+
+                // Start from cone location
+                var from = object.transform.world.getLoc();
+
+                // Cast ray in the direction cone points to
+                var to = object.transform.look();
+
+                // 1000 units long
+                to.mult(1000);
+
+                // End position
+                to.add(from);
+                
+                var hit = physics.rayCast(from, to);
+                var rb = (hit != null) ? hit.rb : null;
+                var info = '';
+                if( rb != null ) info += ' ${rb.object.name}';
+                trace(info);
+            }
+
+            if (keyboard.down("left")) {
+                q.fromEuler(0, 0, 0.1);
+		        object.transform.rot.mult(q);
+		        object.transform.buildMatrix();
+            }
+
+            if (keyboard.down("right")) {
+                q.fromEuler(0, 0, -0.1);
+		        object.transform.rot.mult(q);
+		        object.transform.buildMatrix();
+            }
+        });
+    }
+}