Animancer Event Bug

A project for investigating a potential bug of the Animancer plugin for Unity.

Bug Report: KybernetikGames/animancer#193

To Run

1. Clone the repository
2. Open the SampleScene scene in Unity.
3. Press the Play button in the editor.

Once running, the square in the middle of the scene will move from left to right.

Details

When using Animancer to play animations, Unity's standard animation events fire multiple times when playing an animation from the OnEnd event of another animation.

To Observe the Bug

Press the spacebar. The square will move up and down a few times before returning to the left -> right animation. A message is logged to Unity's console window when the animation event fires.

Expected Outcome: When player presses the spacebar, only one message should be logged in Unity's console from the animation event firing one time.

Actual Outcome: When player presses the spacebar, multiple messages are logged in Unity's console from the animation event firing more than once.

Navigating the Project

The SampleScene scene has the setup required to view the bug.

Animations

There are two animations: attack and idle.

The idle animation...

• Loops
• Is played by default using Animancer when the Square script starts

The attack animation...

• Does not loop
• Has an Animation Event on the first frame that specifies a function to be called (FireEvent, contained in the Square script).

Scripts

There is only one script in the project.

The Square script is attached the the Square game object in the SampleScene scene hierarchy. It contains the logic to play animations when input from the player (spacebar press) is received.

It plays the idle animation when the scene starts. When player input is received, it plays the attack animation once, then returns to the idle animation once the attack animation ends.