feat: selectbox options context menu

src/graphics/core/Batch2D.cpp

@@ -333,6 +333,15 @@ void Batch2D::rect(
     vertex(v1, glm::vec2(0, 0), r2,g2,b2,1.0f);
 }
 
+void Batch2D::triangle(float x1, float y1, float x2, float y2, float x3, float y3) {
+    if (index + 3 >= capacity) {
+        flush();
+    }
+    vertex({x1, y1}, {x1, y1}, color.r, color.g, color.b, color.a);
+    vertex({x2, y2}, {x2, y2}, color.r, color.g, color.b, color.a);
+    vertex({x3, y3}, {x3, y3}, color.r, color.g, color.b, color.a);
+}
+
 void Batch2D::sprite(float x, float y, float w, float h, const UVRegion& region, glm::vec4 tint){
     rect(x, y, w, h, region.u1, region.v1, region.u2-region.u1, region.v2-region.v1, tint.r, tint.g, tint.b, tint.a);
 }

src/graphics/core/Batch2D.hpp

@@ -117,6 +117,8 @@ public:
         float r4, float g4, float b4, int sh
     );
 
+    void triangle(float x1, float y1, float x2, float y2, float x3, float y3);
+
     void flush() override;
 
     void lineWidth(float width);