+initHEADmaster

1 files changed, 116 insertions, 0 deletions

diff --git a/Assets/Scripts/Enums/EffectArea.cs b/Assets/Scripts/Enums/EffectArea.cs
new file mode 100644
index 0000000..4e5fa28
--- /dev/null
+++ b/Assets/Scripts/Enums/EffectArea.cs
@@ -0,0 +1,116 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Coffee.UIEffects
+{
+    /// <summary>
+    /// Area for effect.
+    /// </summary>
+    public enum EffectArea
+    {
+        RectTransform,
+        Fit,
+        Character,
+    }
+
+    public static class EffectAreaExtensions
+    {
+        static readonly Rect rectForCharacter = new Rect(0, 0, 1, 1);
+        static readonly Vector2[] splitedCharacterPosition = {Vector2.up, Vector2.one, Vector2.right, Vector2.zero};
+
+        /// <summary>
+        /// Gets effect for area.
+        /// </summary>
+        public static Rect GetEffectArea(this EffectArea area, VertexHelper vh, Rect rectangle, float aspectRatio = -1)
+        {
+            Rect rect = default(Rect);
+            switch (area)
+            {
+                case EffectArea.RectTransform:
+                    rect = rectangle;
+                    break;
+                case EffectArea.Character:
+                    rect = rectForCharacter;
+                    break;
+                case EffectArea.Fit:
+                    // Fit to contents.
+                    UIVertex vertex = default(UIVertex);
+                    float xMin = float.MaxValue;
+                    float yMin = float.MaxValue;
+                    float xMax = float.MinValue;
+                    float yMax = float.MinValue;
+                    for (int i = 0; i < vh.currentVertCount; i++)
+                    {
+                        vh.PopulateUIVertex(ref vertex, i);
+                        float x = vertex.position.x;
+                        float y = vertex.position.y;
+                        xMin = Mathf.Min(xMin, x);
+                        yMin = Mathf.Min(yMin, y);
+                        xMax = Mathf.Max(xMax, x);
+                        yMax = Mathf.Max(yMax, y);
+                    }
+
+                    rect.Set(xMin, yMin, xMax - xMin, yMax - yMin);
+                    break;
+                default:
+                    rect = rectangle;
+                    break;
+            }
+
+
+            if (0 < aspectRatio)
+            {
+                if (rect.width < rect.height)
+                {
+                    rect.width = rect.height * aspectRatio;
+                }
+                else
+                {
+                    rect.height = rect.width / aspectRatio;
+                }
+            }
+
+            return rect;
+        }
+
+        /// <summary>
+        /// Gets position factor for area.
+        /// </summary>
+        public static void GetPositionFactor(this EffectArea area, int index, Rect rect, Vector2 position, bool isText,
+            bool isTMPro, out float x, out float y)
+        {
+            if (isText && area == EffectArea.Character)
+            {
+                index = isTMPro ? (index + 3) % 4 : index % 4;
+                x = splitedCharacterPosition[index].x;
+                y = splitedCharacterPosition[index].y;
+            }
+            else if (area == EffectArea.Fit)
+            {
+                x = Mathf.Clamp01((position.x - rect.xMin) / rect.width);
+                y = Mathf.Clamp01((position.y - rect.yMin) / rect.height);
+            }
+            else
+            {
+                x = Mathf.Clamp01(position.x / rect.width + 0.5f);
+                y = Mathf.Clamp01(position.y / rect.height + 0.5f);
+            }
+        }
+
+        /// <summary>
+        /// Normalize vertex position by local matrix.
+        /// </summary>
+        public static void GetNormalizedFactor(this EffectArea area, int index, Matrix2x3 matrix, Vector2 position,
+            bool isText, out Vector2 nomalizedPos)
+        {
+            if (isText && area == EffectArea.Character)
+            {
+                nomalizedPos = matrix * splitedCharacterPosition[(index + 3) % 4];
+            }
+            else
+            {
+                nomalizedPos = matrix * position;
+            }
+        }
+    }
+}