HaxeJolt

leenkx/Sources/leenkx/trait/physics/jolt/PhysicsConstraintExportHelper.hx

@@ -0,0 +1,60 @@
+package leenkx.trait.physics.jolt;
+
+import iron.Scene;
+import iron.object.Object;
+#if lnx_jolt
+
+/**
+ * A helper trait to add physics constraints when exporting via Blender. 
+ * This trait will be automatically removed once the constraint is added. Note that this trait
+ * uses object names instead of object reference.
+ **/
+class PhysicsConstraintExportHelper extends iron.Trait {
+
+	var body1: String;
+	var body2: String;
+	var type: Int;
+	var disableCollisions: Bool;
+	var breakingThreshold: Float;
+	var limits: Array<Float>;
+	var constraintAdded: Bool = false;
+	var relativeConstraint: Bool = false;
+
+	public function new(body1: String, body2: String, type: Int, disableCollisions: Bool, breakingThreshold: Float, relatieConstraint: Bool = false, limits: Array<Float> = null) {
+		super();
+
+		this.body1 = body1;
+		this.body2 = body2;
+		this.type = type;
+		this.disableCollisions = disableCollisions;
+		this.breakingThreshold = breakingThreshold;
+		this.relativeConstraint = relatieConstraint;
+		this.limits = limits;
+		notifyOnInit(init);
+		notifyOnUpdate(update);
+	}
+
+	function init() {
+		var target1; 
+		var target2;
+
+		if(relativeConstraint) {
+
+			target1 = object.parent.getChild(body1);
+			target2 = object.parent.getChild(body2);
+		}
+		else {
+			
+			target1 = Scene.active.getChild(body1);
+			target2 = Scene.active.getChild(body2);
+		}
+		object.addTrait(new PhysicsConstraint(target1, target2, type, disableCollisions, breakingThreshold, limits));
+		constraintAdded = true;
+	}
+
+	function update() {
+		if(constraintAdded) this.remove();
+	}
+}
+
+#end