unity-jetpack

Unity practice

Rigidbody2D -> Constraints -> Freeze x, y, z to fix position, angle
At least one object must have a rigidbody to detect collision

Vertext snapping

Select the room background object that you want to move. Don’t forget to release the mouse button. Then hold the V key and move a mouse to the corner you wan to use as a pivot point. This will be one of the left corners, for the background to the right of the window, and one of the right corners (any) for background to the left of the window. Note how the blue point shows which vertex will be used as pivot point. After selecting the pivot point hold down the left mouse button and start moving the object. You will notice that you can only move the object so that it’s pivot point matches the position of other sprite’s corner (vertex).

float height = 2.0f * Camera.main.orthographicSize;
screenWidthInPoints = height * Camera.main.aspect;

Root motion

In other words, you need to enable it if your animation changes the object Transform. This is not the case right now, which is why you turned it off. Also since the game is using physics, it is a good idea to keep animations in sync with physics. This is why you check the Animate Physics checkbox.

Animation parameter

You use a special parameter type called Trigger. Trigger parameters are very similar to Bool, with the exception that they are automatically reset after used

Collision

void OnTriggerEnter2D(Collider2D other) {
		if (other.CompareTag("Coins")) {
			coins++;
			Destroy(other.gameObject);
		} else {
			HitByLaser(other);
		}
	}

Parallax

Then select parallaxForeground in the Hierarchy. You will see that a Mesh Renderer component was added. Click on the Shader drop down and select Unlit\Transparent.

Note: The Depth of the ParallaxCamera should be lower then Depth of Main Camera, so check your Main Camera Depth if required and adjust Depth of ParallaxCamera to be lower.

nntuyen / unity-jetpack