godot/demos/2d/texscreen/lens.gd

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597 B
GDScript3
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extends BackBufferCopy
# member variables here, example:
# var a=2
# var b="textvar"
const MOTION_SPEED=150
var vsize;
var dir;
func _process(delta):
var pos = get_pos() + dir * delta * MOTION_SPEED
if (pos.x<0):
dir.x=abs(dir.x)
elif (pos.x>vsize.x):
dir.x=-abs(dir.x)
if (pos.y<0):
dir.y=abs(dir.y)
elif (pos.y>vsize.y):
dir.y=-abs(dir.y)
set_pos(pos)
func _ready():
vsize = get_viewport_rect().size
var pos = vsize * Vector2(randf(),randf());
set_pos(pos);
dir = Vector2(randf()*2.0-1,randf()*2.0-1).normalized()
set_process(true)
# Initialization here
pass