2D Sprite-Animation

Einführung

In this tutorial, you’ll learn two different ways to create 2D animated characters. Typically, when you create or download an animated character, it will come in one of two ways: as individual images or as a single sprite sheet containing all the animation’s frames. Depending on which type of assets you have, you can choose one of the following solutions.

First, we’ll use AnimatedSprite to animate a collection of individual images. Then, to use a sprite sheet, we’ll use AnimationPlayer along with the Animation property of Sprite.

Bemerkung

Art for the following examples by https://opengameart.org/users/ansimuz

Individual images with AnimatedSprite

In this scenario, you have a collection of images, each containing one of your character’s animation frames. For this example, we’ll use the following animation:

../../_images/2d_animation_run_preview.gif

You can download the images here: run_animation.zip

Unzip the images and place them in your project folder. Set up your scene tree with the following nodes:

../../_images/2d_animation_tree1.png

Bemerkung

The root node could also be Area2D or RigidBody2D. The animation will still be made in the same way. Once the animation is completed, you can assign a shape to the CollisionShape2D. See Physics Introduction for more information.

Now select the AnimatedSprite and in its SpriteFrames property, select „New SpriteFrames“.

../../_images/2d_animation_new_spriteframes.png

Click on the new SpriteFrames resource and you’ll see a new panel appear at the bottom of the editor window:

../../_images/2d_animation_spriteframes.png

From the FileSystem dock on the left side, drag the 8 individual images into the center part of the SpriteFrames panel. On the left side, change the name of the animation from „default“ to „run“.

../../_images/2d_animation_spriteframes_done.png

Back in the Inspector, check the box for the Playing property. You should now see the animation playing in the viewport. However, it is a bit slow. To fix this, change the Speed (FPS) setting in the SpriteFrames panel.

You can add additional animations by clicking the „New Animation“ button and adding additional images.

Erstellen und regeln einer Animation

Once the animation is complete, you can control the animation via code using the play() and stop() methods. Here is a brief example to play the animation while the right arrow key is held, and stop it when the key is released.

extends KinematicBody2D

func _process(delta):
    if Input.is_action_pressed("ui_right"):
        $AnimatedSprite.play("run")
    else:
        $AnimatedSprite.stop()

Bildbogen (Sprite) mit Animationsspieler

In the event you have a sprite sheet containing all of your animation frames, you can’t easily use AnimatedSprite. Instead, you can use a standard Sprite node to display the texture, and then animate the change from texture to texture with AnimationPlayer.

Consider this sprite sheet, which contains 6 frames of animation:

../../_images/2d_animation_player-run.png

Right-click the image and choose „Save Image As“ to download, then copy the image into your project folder.

Our goal is to display these images one after another in a loop. Start by setting up your scene tree:

../../_images/2d_animation_tree2.png

Bemerkung

The root node could also be Area2D or RigidBody2D. The animation will still be made in the same way. Once the animation is completed, you can assign a shape to the CollisionShape2D. See Physics Introduction for more information.

Drag the spritesheet into the Sprite’s Texture property, and you’ll see the whole sheet displayed on the screen. To slice it up into individual frames, expand the Animation section in the Inspector and set the Hframes to 6. Hframes and Vframes are the number of horizontal and vertical frames in your sprite sheet.

../../_images/2d_animation_setframes.png

Now try changing the value of the Frame property. You’ll see that it ranges from 0 to 5 and the image displayed by the Sprite changes accordingly. This is the property we’ll be animating.

Select the AnimationPlayer and click the „Animation“ button followed by „New“. Name the new animation „walk“. Set the animation length to 0.6 and click the „Loop“ button so that our animation will repeat.

../../_images/2d_animation_new_animation.png

Now select the Sprite node and click the key icon to add a new track.

../../_images/2d_animation_new_track.png

Continue adding frames at each point in the timeline (0.1 seconds by default), until you have all the frames from 0 to 5. You’ll see the frames actually appearing in the animation track:

../../_images/2d_animation_full_animation.png

Press „Play“ on the animation to see how it looks.

../../_images/2d_animation_running.gif

Zusammenfassung

These examples illustrate the two most common situations you’ll encounter in 2D animation. Each has its benefits. Working with AnimationPlayer is a bit more complex, but provides additional functionality, since you can also animate other properties like position or scale. Experiment and see which works best for your needs.