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Copy and paste sprite physics shapes between TextureImporter, SpriteRenderer and PolygonCollider2D using their context menus.
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using System.Collections; | |
using System.Collections.Generic; | |
using UnityEngine; | |
using System; | |
#if UNITY_EDITOR | |
using UnityEditor; | |
public class SpriteShapeUtils | |
{ | |
static List<Vector2>[] shapesByIndex = new List<Vector2>[0]; | |
[MenuItem("CONTEXT/TextureImporter/Copy Physics Shape", priority = 110)] | |
static void CopyShapeFromImporter(MenuCommand command) | |
{ | |
var importer = command.context as TextureImporter; | |
var sprite = AssetDatabase.LoadAssetAtPath<Sprite>(importer.assetPath); | |
CopyShapeFromSprite(sprite); | |
} | |
[MenuItem("CONTEXT/SpriteRenderer/Copy Physics Shape", priority = 110)] | |
static void CopyShapeFromSpriteRenderer(MenuCommand command) | |
{ | |
var renderer = command.context as SpriteRenderer; | |
CopyShapeFromSprite(renderer.sprite); | |
} | |
[MenuItem("CONTEXT/PolygonCollider2D/Copy Physics Shape", priority = 110)] | |
static void CopyShapeFromCollider(MenuCommand command) | |
{ | |
var collider = command.context as PolygonCollider2D; | |
shapesByIndex = new List<Vector2>[collider.pathCount]; | |
for (int s = 0; s < shapesByIndex.Length; s++) | |
{ | |
shapesByIndex[s] = new List<Vector2>(collider.GetPath(s)); | |
} | |
} | |
[MenuItem("CONTEXT/PolygonCollider2D/Paste Physics Shape", priority = 110)] | |
static void PasteShapeIntoCollider(MenuCommand command) | |
{ | |
var collider = command.context as PolygonCollider2D; | |
collider.pathCount = shapesByIndex.Length; | |
for (int s = 0; s < shapesByIndex.Length; s++) | |
{ | |
collider.SetPath(s, shapesByIndex[s].ToArray()); | |
} | |
} | |
[MenuItem("CONTEXT/PolygonCollider2D/Use Sprite Physics Shape", priority = 110)] | |
static void UseSpriteShape(MenuCommand command) | |
{ | |
var collider = command.context as PolygonCollider2D; | |
//this checks for SpriteRenderer upwards through the hierarchy (starting at the current GameObject) | |
var sprite = collider.GetComponentInParent<SpriteRenderer>()?.sprite; | |
CopyShapeFromSprite(sprite); | |
PasteShapeIntoCollider(command); | |
} | |
private static void CopyShapeFromSprite(Sprite sprite) | |
{ | |
if (sprite == null) | |
{ | |
Debug.LogWarning("No Sprite found!"); | |
return; | |
} | |
shapesByIndex = new List<Vector2>[sprite.GetPhysicsShapeCount()]; | |
for (int s = 0; s < sprite.GetPhysicsShapeCount(); s++) | |
{ | |
shapesByIndex[s] = new List<Vector2>(); | |
sprite.GetPhysicsShape(s, shapesByIndex[s]); | |
} | |
} | |
} | |
#endif |
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