备份CatanBuilding瘦身独立工程

Assets/Scripts/EventPinball/Shaders/CircularProgress.shader

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+Shader "Bamboo/CircularProgress"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+        _Progress ("Progress", Range(0, 1)) = 0
+        _Color ("Color", Color) = (1,1,1,1)
+        _BackgroundColor ("Background Color", Color) = (0,0,0,0)
+    }
+    
+    SubShader
+    {
+        Tags 
+        { 
+            "Queue"="Transparent" 
+            "RenderType"="Transparent" 
+        }
+        
+        Blend SrcAlpha OneMinusSrcAlpha
+        Cull Off
+        ZWrite Off
+        
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            
+            #include "UnityCG.cginc"
+            
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+            };
+            
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+            };
+            
+            sampler2D _MainTex;
+            float4 _MainTex_ST;
+            float _Progress;
+            fixed4 _Color;
+            fixed4 _BackgroundColor;
+            
+            v2f vert (appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+                return o;
+            }
+            
+            fixed4 frag (v2f i) : SV_Target
+            {
+                // 获取UV坐标相对于中心的位置
+                float2 center = float2(0.5, 0.5);
+                float2 dir = i.uv - center;
+                
+                // 计算当前点到圆心的距离
+                float dist = length(dir);
+                
+                // 计算当前点的角度（从上方开始顺时针方向）
+                // atan2返回[-π, π]，我们转换为[0, 1]范围
+                float angle = atan2(dir.x, dir.y) / (2.0 * 3.14159265359);
+                angle = angle < 0 ? angle + 1.0 : angle;
+                
+                // 采样纹理
+                fixed4 col = tex2D(_MainTex, i.uv);
+                
+                // 根据进度决定是否显示
+                float visible = (dist <= 0.5) && (angle <= _Progress);
+                
+                // 混合颜色
+                col.rgb = col.rgb * _Color.rgb;
+                col.a = col.a * _Color.a * visible;
+                
+                // 如果不可见，使用背景色
+                return lerp(_BackgroundColor, col, visible);
+            }
+            ENDCG
+        }
+    }
+}

Assets/Scripts/EventPinball/Shaders/CircularProgress.shader.meta

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+fileFormatVersion: 2
+guid: a1423250c4744a04596fc60f2ce062b6
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: