Godot Lesson 1: Player Movement

Summary

This lesson covers player movement and collision with walls.

Prerequisites

• Godot Installed

Video

Code

Repository: https://github.com/los-alamos-steam-lab/godot-tutorial/tree/1-movement-and-collision

Player Code

extends KinematicBody2D

const SPEED = 70
var movedir = Vector2(0,0)


# _physics_process is called by the game engine
func _physics_process(delta):
    controls_loop()
    movement_loop()

# controls_loop looks for player input
func controls_loop():
    var LEFT                = Input.is_action_pressed("ui_left")
    var RIGHT       = Input.is_action_pressed("ui_right")
    var UP          = Input.is_action_pressed("ui_up")
    var DOWN                = Input.is_action_pressed("ui_down")

    # By adding our values together, we make it so that one key
    # stroke does not take precidence over another, i.e. pushing
    # left and right keys at the same time
    movedir.x = -int(LEFT) + int(RIGHT)
    movedir.y = -int(UP) + int(DOWN)

# movement_loop makes the character move
func movement_loop():
    # .normalized makes it so that diagonal movement is
    # the same length as 4-driectional movement
    var motion = movedir.normalized() * SPEED

    # move_and_slide takes care of collisions and has you slide
    # along walls that are blocking your path
    move_and_slide(motion, Vector2(0,0))