added gradient shaders to all primatives

primatives/line.cpp

@@ -58,6 +58,18 @@ namespace UwU {
             }
           }
           return;
+
+        } else if (shader.shaderType == BUFFER) {
+          for (int16_t x = ix0; x < ix1; x++) {
+            buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
+            if (d > 0) {
+              y += yi;
+              d += (2 * (dy - dx));
+            } else {
+              d += (2 * dy);
+            }
+          }
+          return;
         }
         return;
       }
@@ -110,6 +122,17 @@ namespace UwU {
         }
         return;
           
+        } else if (shader.shaderType == BUFFER) {
+          for (int16_t y = iy0; y < iy1; y++) {
+          buffer.drawPixel((uint16_t)x, (uint16_t)y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
+          if (d > 0) {
+            x += xi;
+            d += (2 * (dx - dy));
+          } else {
+            d += (2 * dx);
+          }
+        }
+        return;
         }
         return;
       }

primatives/point.cpp

@@ -32,6 +32,8 @@ namespace UwU {
         } else if (shader.shaderType == VGRADIENT) {
           buffer.drawPixel(x, y, ShaderMethods::gradient(shader.v0, shader.scale, shader.c0, shader.c1, y));
           return;
+        } else if (shader.shaderType == BUFFER) {
+          buffer.drawPixel(x, y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
         }
         return;
       }

primatives/trapezoid.cpp

@@ -74,6 +74,13 @@ namespace UwU {
           }
           return;
 
+        } else if (shader.shaderType == BUFFER) {
+          for (uint16_t i = 0; i < height; i++) {
+            for (uint16_t x = LeftBound[i]; x <= RightBound[i]; x++) {
+              buffer.drawPixel(x, i + y0, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, i + y0));
+            }
+          }
+          return;
         }
         return;
       }

primatives/triangle.cpp

@@ -157,6 +157,24 @@ namespace UwU {
             }
           }
           return;
+          
+        } else if (shader.shaderType == BUFFER) {
+          // Left-handed triangle case (midpoint is left of triangle)
+          if ((int16_t)midX < longBound[midY - topY]) {
+            for (uint16_t i = 0; i < height; i++) {
+              for (uint16_t x = (uint16_t)splitBound[i]; x <= (uint16_t)longBound[i]; x++) {
+                buffer.drawPixel(x, i + (uint16_t)topY, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, i + topY));
+              }
+            }
+            // Right-handed triangle case (midpoint is right of triangle)
+          } else {
+            for (uint16_t i = 0; i < height; i++) {
+              for (uint16_t x = (uint16_t)longBound[i]; x <= (uint16_t)splitBound[i]; x++) {
+                buffer.drawPixel(x, i + (uint16_t)topY, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, i + topY));
+              }
+            }
+          }
+          return;
         }
         return;
       }