Merge pull request #3 from N8n5h/patch-1

Update PlayerController.hx

twin_stick/Sources/arm/PlayerController.hx

@@ -1,6 +1,9 @@
 package arm;
 
 import iron.math.Vec4;
+import iron.math.Vec2;
+import iron.math.RayCaster;
+import iron.Scene;
 import iron.object.Object;
 import iron.object.BoneAnimation;
 import iron.system.Time;
@@ -66,11 +69,19 @@ class PlayerController extends iron.Trait {
 		dir.normalize();
 
 		// Mouse control
-		var mx = -(iron.App.w() / 2 - mouse.x) / iron.App.w();
-		var my = (iron.App.h() / 2 - mouse.y) / iron.App.h();
-		var mv = new Vec4(mx * 2, my * 2, 0.0);
-		mv.normalize();
-		armature.transform.rot.fromTo(Vec4.yAxis(), mv);
+		var mouse_pos = new Vec2(mouse.x,mouse.y);
+		var hit_pos = project_mouse_pos(mouse_pos);
+
+		if (hit_pos != null)
+		{
+			var center = new Vec4(hit_pos.x,hit_pos.y,0);
+			var eye = armature.transform.world.getLoc();
+			eye.set(eye.x,eye.y,0);
+
+			var target = center.sub(eye);
+
+			armature.transform.rot.fromTo(Vec4.yAxis(), target.normalize());
+		}
 
 		// Gamepad control
 		if (gamepad != null) {
@@ -84,6 +95,16 @@ class PlayerController extends iron.Trait {
 		updateBody();
 	}
 
+	function project_mouse_pos(input:Vec2){
+		var camera = Scene.active.camera;
+
+		var start = new Vec4();
+		var end = new Vec4();
+
+		var hit_pos = RayCaster.planeIntersect(Vec4.zAxis(),new Vec4(0,0,1),input.x,input.y,camera);
+		return hit_pos;
+	}
+
 	function getAngle(va:Vec4, vb:Vec4) {
 		var vn = Vec4.zAxis();
 		var dot = va.dot(vb);