Sprite Collider

Very simple tool to create collider data for sprite animations.
Easier setup of hitboxes for iframes or hurtboxes to deal damage on specific frames.

Features:

• Create colliders that map one to one with the pixel size of your sprites
• Works with built in animator, although you can use it in other contexts
• Poll an event and it will automatically use the correct frame and collider type
• Hitbox and Hurtbox
• Extensible to support more features like events
• Supports flipping the SpriteCollider
• Preview collider in scene view

Known Issues:

• Currently the window size is locked to 1024x1024

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Usage

Open Tool Window

• Window can be opened via the "Tools/Sprite Collider" menu in the top menu bar.
• You can also open SpriteColliderData assets by double clicking them in the project window.

Create

• Drag an AnimationClip onto the Sprite Collider window.

Add Collider Type

• Click the Add button in the window and select the collider type
• Each collider gets a keyframe for each frame in the animation clip
• Right click the keyframe to enable/disable it

Edit collider/frame

• Select one of the keyframes in the lower area, the selected keyframe will have a small green circle inside it
• The top area will show a box that shares the color with the collider type
• Move the box by right clicking and dragging it
• Expand the box by left click and drag one of the edges

Preview the Sprite Collider in Scene View

• Add the SpriteColliderPreview component to a GameObject in the scene and drag the SpriteRenderer onto it
• Open a relevant SpriteColliderData and have the GameObject selected
• The selected frame and collider box is show in the scene view

Use the SpriteCollider in game

• Add both the SpriteCollider and Hitbox component to a GameObject
• Assign the needed components to both of them
  • Animator and SpriteRenderer for SpriteCollider
  • A BoxCollider2D for Hitbox
• Assign all the SpriteColliderData assets to the SpriteCollider component, they will automatically map to the AnimationClip it was created with
  • if no SpriteColliderData exists for an animation clip no hurtbox exist, but the hitbox will still work. It will use the default size of the BoxCollider2D assigned to it.
• Hitbox data is set from the current animation playing and can be listened and used the usual Unity way
• Hurtbox data can be polled by calling SpriteCollider::CheckEvent(eventType, ...)

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( sprite art in images is from rvros's adventurer pack )