Zigzag

Demonstrates contraining user-specified movement to multiple of 90 degrees.

Input can be a touch, a mouse left-click (emulated), or a directional input action such as an arrow key press or a joystick input.

This is the GDScript code that constrains the movement:

# vector is the Vector2 direction of the unconstrained movement.

# new_vector is the Vector2 direction of the constrained movement.

const HALF_PI: float = PI / 2.0

var new_vector: Vector2 = Vector2.from_angle((roundf(vector.angle() / HALF_PI)) * HALF_PI)

Source files: https://github.com/daveTheOldCoder/zigzag