feat(sales): 新增环形进度条 Shader

Made-with: Cursor

Assets/Resources/Shader/SpriteRadialProgress.shader

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+Shader "AibisDream/SpriteRadialProgress"
+{
+    Properties
+    {
+        [PerRendererData] _MainTex("Sprite Texture", 2D) = "white" {}
+        _Color("Tint", Color) = (1,1,1,1)
+        _Progress("Progress", Range(0, 1)) = 1
+        _StartAngle("Start Angle", Range(0, 360)) = 90
+        _FillClockwise("Fill Clockwise", Float) = 1
+    }
+
+    SubShader
+    {
+        Tags
+        {
+            "Queue" = "Transparent"
+            "RenderType" = "Transparent"
+            "RenderPipeline" = "UniversalPipeline"
+            "IgnoreProjector" = "True"
+            "CanUseSpriteAtlas" = "True"
+        }
+
+        Cull Off
+        ZWrite Off
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        Pass
+        {
+            Name "SpriteRadialProgress"
+            Tags { "LightMode" = "SRPDefaultUnlit" }
+
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma target 2.0
+
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+            struct Attributes
+            {
+                float4 positionOS : POSITION;
+                float2 uv : TEXCOORD0;
+                float4 color : COLOR;
+            };
+
+            struct Varyings
+            {
+                float4 positionHCS : SV_POSITION;
+                float2 uv : TEXCOORD0;
+                float4 color : COLOR;
+            };
+
+            TEXTURE2D(_MainTex);
+            SAMPLER(sampler_MainTex);
+
+            CBUFFER_START(UnityPerMaterial)
+                float4 _MainTex_ST;
+                float4 _Color;
+                float _Progress;
+                float _StartAngle;
+                float _FillClockwise;
+            CBUFFER_END
+
+            Varyings vert(Attributes input)
+            {
+                Varyings output;
+                output.positionHCS = TransformObjectToHClip(input.positionOS.xyz);
+                output.uv = TRANSFORM_TEX(input.uv, _MainTex);
+                output.color = input.color * _Color;
+                return output;
+            }
+
+            half4 frag(Varyings input) : SV_Target
+            {
+                half4 texColor = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, input.uv) * input.color;
+
+                if (_Progress <= 0.0001)
+                {
+                    clip(-1);
+                }
+
+                if (_Progress < 0.9999)
+                {
+                    float2 centeredUv = input.uv - 0.5;
+                    float rawAngle01 = frac((atan2(centeredUv.y, centeredUv.x) / (2.0 * PI)) + 1.0);
+                    float startAngle01 = frac(_StartAngle / 360.0);
+
+                    float sweep01 = _FillClockwise > 0.5
+                        ? frac(startAngle01 - rawAngle01 + 1.0)
+                        : frac(rawAngle01 - startAngle01 + 1.0);
+
+                    clip(_Progress - sweep01);
+                }
+
+                clip(texColor.a - 0.001);
+                return texColor;
+            }
+            ENDHLSL
+        }
+    }
+}

Assets/Resources/Shader/SpriteRadialProgress.shader.meta

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+fileFormatVersion: 2
+guid: 4d6fb03ef73c359459f6b2096601d779
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: