A Coin That Pops

Part of the Game Feel section of Coddy's Godot journey. Lesson 7 of 23.

When you touch a coin, it disappears at once. A short pop shows the player they picked it up. The coin grows and fades, then it is removed.

The pop is a tween with two steps that run together. The coin must stay until the tween is done. A tween sends the finished signal when its last step ends, and await waits for it.

var tween = create_tween()
tween.tween_property(self, "scale", Vector2(2, 2), 0.3)
tween.parallel().tween_property(self, "modulate:a", 0.0, 0.3)
await tween.finished
queue_free()

await tween.finished pauses the function until the tween ends. Then queue_free() runs. The rest of the game keeps running while it waits.

Challenge

Medium

Make a coin pop before it goes.

In _on_body_entered, tween scale to Vector2(1.8, 1.8) in 0.25 seconds.
At the same time, tween "modulate:a" to 0.0.
Wait for the tween to finish, then queue_free().

Press Play and walk into a coin: it swells and fades away. Then Check.

Try it yourself

extends Area2D

func _ready():
	body_entered.connect(_on_body_entered)

func _on_body_entered(body):
	queue_free()

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Game Feel

1Tweens

Your First Tween Tween Any Property Fade Out Ease Out One After Another At the Same TimeA Coin That Pops

4Flashes and Feedback

Flash on a Hit Hit Freeze Squash and Stretch Floating Numbers

2Camera

A Camera That Follows Camera Limits A Smooth Camera Screen Shake

5Animation

AnimationPlayer Play on a Key When It Finishes Play It Backwards

3Particles

Particles A One Shot Burst Color and Amount Break a Crate

Practice on your own: Godot playground