优化项目架构

SproutFarm-Frontend/Shader/FarmLotOutline.gdshader

@@ -0,0 +1,71 @@
+shader_type canvas_item;
+
+uniform float outline_thickness: hint_range(0.0, 8.0, 0.5) = 1.0;
+uniform vec4 outline_color: source_color = vec4(1.0);
+uniform bool high_performance_mode = true; // 高性能模式，减少采样
+
+void vertex() {
+	VERTEX += (UV * 2.0 - 1.0) * outline_thickness;
+}
+
+void fragment() {
+	vec2 uv = UV;
+	vec2 texture_pixel_size = vec2(1.0) / (vec2(1.0) / TEXTURE_PIXEL_SIZE + vec2(outline_thickness * 2.0));
+	uv = (uv - texture_pixel_size * outline_thickness) * TEXTURE_PIXEL_SIZE / texture_pixel_size;
+	
+	vec4 texture_color = vec4(0.0);
+	if (uv.x >= 0.0 && uv.x <= 1.0 && uv.y >= 0.0 && uv.y <= 1.0) {
+		texture_color = texture(TEXTURE, uv);
+	}
+	
+	// 如果当前像素不透明，直接设置颜色
+	if (texture_color.a > 0.5) {
+		COLOR = texture_color;
+	} else {
+		// 需要计算描边
+		float outline_alpha = 0.0;
+		
+		if (high_performance_mode) {
+			// 高性能模式：只检查4个主要方向
+			vec2 directions[4] = {
+				vec2(outline_thickness, 0.0),
+				vec2(-outline_thickness, 0.0),
+				vec2(0.0, outline_thickness),
+				vec2(0.0, -outline_thickness)
+			};
+			
+			for (int i = 0; i < 4; i++) {
+				vec2 check_uv = uv + directions[i] * TEXTURE_PIXEL_SIZE;
+				if (check_uv.x >= 0.0 && check_uv.x <= 1.0 && check_uv.y >= 0.0 && check_uv.y <= 1.0) {
+					float check_alpha = texture(TEXTURE, check_uv).a;
+					outline_alpha = max(outline_alpha, check_alpha);
+					if (outline_alpha > 0.9) break; // 早期退出
+				}
+			}
+		} else {
+			// 标准模式：8方向检查
+			vec2 directions[8] = {
+				vec2(outline_thickness, 0.0), vec2(-outline_thickness, 0.0),
+				vec2(0.0, outline_thickness), vec2(0.0, -outline_thickness),
+				vec2(outline_thickness * 0.707, outline_thickness * 0.707),
+				vec2(-outline_thickness * 0.707, outline_thickness * 0.707),
+				vec2(outline_thickness * 0.707, -outline_thickness * 0.707),
+				vec2(-outline_thickness * 0.707, -outline_thickness * 0.707)
+			};
+			
+			for (int i = 0; i < 8; i++) {
+				vec2 check_uv = uv + directions[i] * TEXTURE_PIXEL_SIZE;
+				if (check_uv.x >= 0.0 && check_uv.x <= 1.0 && check_uv.y >= 0.0 && check_uv.y <= 1.0) {
+					float check_alpha = texture(TEXTURE, check_uv).a;
+					outline_alpha = max(outline_alpha, check_alpha);
+					if (outline_alpha > 0.9) break; // 早期退出
+				}
+			}
+		}
+		
+		// 混合颜色
+		float final_alpha = outline_alpha * outline_color.a;
+		COLOR = vec4(outline_color.rgb * final_alpha + texture_color.rgb * texture_color.a, 
+					 max(final_alpha, texture_color.a));
+	}
+}