Godot 2d Platformer Move and Jump
March 16, 2021extends KinematicBody2D
const GRAVITY = 600
const WALK_SPEED = 200
const JUMP_FORCE = 500
var velocity = Vector2()
var screen_size
func _ready():
screen_size = get_viewport_rect().size
func _physics_process(delta):
velocity.y += delta * GRAVITY
if Input.is_action_pressed("ui_left"):
velocity.x = -WALK_SPEED
elif Input.is_action_pressed("ui_right"):
velocity.x = WALK_SPEED
else:
# velocity.x = 0
# smoothen the stop
velocity.x = lerp(velocity.x, 0, 0.1)
if Input.is_action_pressed("ui_up") and is_on_floor():
velocity.y = -JUMP_FORCE
velocity = move_and_slide(velocity, Vector2.UP)
# prevent player going out of screen
position.x = clamp(position.x, 0, screen_size.x)
position.y = clamp(position.y, 0, screen_size.y)
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