2.0 Migration for Atlas Generation API

[aninocoders]

Hello,

Our atlas generator no longer works in 2.1. API changes to tk2dSpriteCollection is not specified anywhere in the Migration Guide. This is the code that no longer compiles:


        private void CreateSpriteCollection(Dictionary<string, string> idAssetsPathMap) {
         // create game object with sprite collection
         GameObject go = new GameObject(spriteCollectionName);
         tk2dSpriteCollection collection = go.AddComponent<tk2dSpriteCollection>();
         collection.version = tk2dSpriteCollection.CURRENT_VERSION;
         
         UnityEngine.Object p = PrefabUtility.CreateEmptyPrefab(spriteCollectionPath);
           GameObject collectionPrefabGo = PrefabUtility.ReplacePrefab(go, p, ReplacePrefabOptions.ConnectToPrefab);
         tk2dSpriteCollection collectionFromPrefab = collectionPrefabGo.GetComponent<tk2dSpriteCollection>();
         GameObject.DestroyImmediate(go);
         
         // prepare collection parameters
         collectionFromPrefab.textureParams = new tk2dSpriteCollectionDefinition[idAssetsPathMap.Count];
         collectionFromPrefab.targetHeight = dataManager.ScreenHeight;
         collectionFromPrefab.targetOrthoSize = 1.0f;
         collectionFromPrefab.maxTextureSize = 2048;
         collectionFromPrefab.forceSquareAtlas = true;
         collectionFromPrefab.textureCompression = this.textureCompression;
         collectionFromPrefab.allowMultipleAtlases = true;
         
         // add textures to the collection
         int i = 0;
         foreach(KeyValuePair<string, string> entry in idAssetsPathMap) {
            Texture2D texture = (Texture2D)AssetDatabase.LoadAssetAtPath(entry.Value, typeof(Texture2D));
            
            collectionFromPrefab.textureParams = new tk2dSpriteCollectionDefinition();
            collectionFromPrefab.textureParams.name = entry.Key;
            collectionFromPrefab.textureParams.colliderType = tk2dSpriteCollectionDefinition.ColliderType.ForceNone;
            collectionFromPrefab.textureParams.texture = texture;
            
            ++i;
         }
         
         tk2dSpriteCollectionBuilder.Rebuild(collectionFromPrefab);
      }

tk2dSpriteCollection.targetHeight (and some others) are no longer public and there's no property or setter that we can use. How do we fix this?

[aninocoders]

My current workaround is I set tk2dSpriteCollection.targetHeight and tk2dSpriteCollection.targetOrthoSize to public. But this is a hacky fix. Also the generated sprites no longer have the same size as it did before.

[aninocoders]

Found it:

tk2dSpriteCollection.sizeDef

Thanks!

[unikronsoftware]

Yup. That has changed to support pixels per meter, etc using a common GUI.

Just as a quick tip - since everything in tk2d is almost always backwards compatible, look for an Upgrade function if in doubt about the non-public API. The upgrade function will upgrade the structs, and you can work out whats happened to these variables. Eg. sizeDef.CopyFromLegacy( useTk2dCamera, targetOrthoSize, targetHeight );