Import AllIn1SpriteShader

Assets/AllIn1SpriteShader/Scripts/SetAtlasUvs.cs

@@ -0,0 +1,141 @@
+using UnityEngine;
+using UnityEngine.UI;
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+[ExecuteInEditMode]
+public class SetAtlasUvs : MonoBehaviour
+{
+    [SerializeField] private bool updateEveryFrame = false;
+    private Renderer render;
+    private SpriteRenderer spriteRender;
+    private Image uiImage;
+    private bool isUI = false;
+
+    void Start()
+    {
+        if (GetRendererReferencesIfNeeded()) GetAndSetUVs();
+
+        if (!updateEveryFrame && Application.isPlaying) this.enabled = false;
+    }
+
+    void OnWillRenderObject()
+    {
+        if (updateEveryFrame)
+        {
+            GetAndSetUVs();
+        }       
+    }
+
+    public void GetAndSetUVs()
+    {
+        if (!GetRendererReferencesIfNeeded()) return;
+
+        if (!isUI)
+        {
+            Rect r = spriteRender.sprite.rect;
+            r.x /= spriteRender.sprite.texture.width;
+            r.width /= spriteRender.sprite.texture.width;
+            r.y /= spriteRender.sprite.texture.height;
+            r.height /= spriteRender.sprite.texture.height;
+
+            render.sharedMaterial.SetFloat("_MinXUV", r.xMin);
+            render.sharedMaterial.SetFloat("_MaxXUV", r.xMax);
+            render.sharedMaterial.SetFloat("_MinYUV", r.yMin);
+            render.sharedMaterial.SetFloat("_MaxYUV", r.yMax);
+        }
+        else
+        {
+            Rect r = uiImage.sprite.rect;
+            r.x /= uiImage.sprite.texture.width;
+            r.width /= uiImage.sprite.texture.width;
+            r.y /= uiImage.sprite.texture.height;
+            r.height /= uiImage.sprite.texture.height;
+
+            uiImage.material.SetFloat("_MinXUV", r.xMin);
+            uiImage.material.SetFloat("_MaxXUV", r.xMax);
+            uiImage.material.SetFloat("_MinYUV", r.yMin);
+            uiImage.material.SetFloat("_MaxYUV", r.yMax);
+        }
+    }
+
+    public void ResetAtlasUvs()
+    {
+        if (!GetRendererReferencesIfNeeded()) return;
+
+        if (!isUI)
+        {
+            render.sharedMaterial.SetFloat("_MinXUV", 0f);
+            render.sharedMaterial.SetFloat("_MaxXUV", 1f);
+            render.sharedMaterial.SetFloat("_MinYUV", 0f);
+            render.sharedMaterial.SetFloat("_MaxYUV", 1f);
+        }
+        else
+        {
+            uiImage.material.SetFloat("_MinXUV", 0f);
+            uiImage.material.SetFloat("_MaxXUV", 1f);
+            uiImage.material.SetFloat("_MinYUV", 0f);
+            uiImage.material.SetFloat("_MaxYUV", 1f);
+        }
+    }
+
+    public void UpdateEveryFrame(bool everyFrame)
+    {
+        updateEveryFrame = everyFrame;
+    }
+
+    private bool GetRendererReferencesIfNeeded()
+    {
+        if (spriteRender == null) spriteRender = GetComponent<SpriteRenderer>();
+        if (spriteRender != null)
+        {
+            if (spriteRender.sprite == null)
+            {
+                #if UNITY_EDITOR
+                EditorUtility.DisplayDialog("No sprite found", "The object: " + gameObject.name + ",has Sprite Renderer but no sprite", "Ok");
+                #endif
+                return false;
+            }
+            if (render == null) render = GetComponent<Renderer>();
+            isUI = false;
+        }
+        else
+        {
+            if (uiImage == null)
+            {
+                uiImage = GetComponent<Image>();
+                if (uiImage != null)
+                {
+                    #if UNITY_EDITOR
+                    Debug.Log("You added the SetAtlasUv component to: " + gameObject.name + " that has a UI Image\n " +
+                    "This SetAtlasUV component will only work properly on UI Images if each Image has a DIFFERENT material instance (See Documentation Sprite Atlases section for more info)");
+                    #endif
+                }
+                else
+                {
+                    #if UNITY_EDITOR
+                    EditorUtility.DisplayDialog("No Valid Renderer Component Found", "Looks like you have no Sprite Renderer or UI Image on: '"
+                        + gameObject.name + "'\n This SetAtlasUV component will now get destroyed", "Ok");
+                    #endif
+                    DestroyImmediate(this);
+                    return false;
+                }
+            }
+            if (render == null) render = GetComponent<Renderer>();
+            isUI = true;
+        }
+
+        if (spriteRender == null && uiImage == null)
+        {
+            #if UNITY_EDITOR
+            EditorUtility.DisplayDialog("No Sprite Renderer", "Looks like you are missing a Sprite Renderer on: '" 
+                + gameObject.name + "'\n SetAtlasUvs only works with Sprite Renderers since it needs a 'sharedMaterial' property that UI images lack." +
+                " This SetAtlasUV component will now get destroyed", "Ok");
+            #endif
+            DestroyImmediate(this);
+            return false;
+        }
+        return true;
+    }
+}