created buffer shader and added shader logic to rectangle

primatives/line.cpp

@@ -5,6 +5,7 @@
 #include "../datatypes.cpp"
 #include "../helpers.cpp"
 #include "../buffer.cpp"
+#include "../shader.cpp"
 
 namespace UwU {
   // line

primatives/point.cpp

@@ -5,6 +5,7 @@
 #include "../datatypes.cpp"
 #include "../helpers.cpp"
 #include "../buffer.cpp"
+#include "../shader.cpp"
 
 namespace UwU {
   // point

primatives/rectangle.cpp

@@ -25,8 +25,8 @@ namespace UwU {
       
       // Draw a rectangle
       void draw (Buffer buffer, Shader shader) {
+        if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
         if (shader.shaderType == COLOR) {
-          if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
           for (uint16_t y = y0; y < y1; y++) {
             for (uint16_t x = x0; x < x1; x++) {
               buffer.drawPixel(x, y, shader.c0);
@@ -35,14 +35,13 @@ namespace UwU {
           return;
 
         } else if (shader.shaderType == HGRADIENT) {
-          if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
 
           // Precompute gradient LUT
           Color cols[x1 - x0];
           for (uint16_t x = x0; x < x1; x++) {
             cols[x - x0] = ShaderMethods::gradient(shader.u0, shader.scale, shader.c0, shader.c1, x);
           }
-          
+
           for (uint16_t y = y0; y < y1; y++) {
             for (uint16_t x = x0; x < x1; x++) {
             buffer.drawPixel(x, y, cols[x - x0]);
@@ -51,7 +50,6 @@ namespace UwU {
           return;
           
         } else if (shader.shaderType == VGRADIENT) {
-          if (x0 > buffer.width || y0 > buffer.height || x1 > buffer.width || y1 > buffer.height) {return;};
           for (uint16_t y = y0; y < y1; y++) {
             Color c = ShaderMethods::gradient(shader.v0, shader.scale, shader.c0, shader.c1, y);
             for (uint16_t x = x0; x < x1; x++) {
@@ -59,8 +57,16 @@ namespace UwU {
             }
           }
           return;
+
+        } else if (shader.shaderType == BUFFER) {
+          for (uint16_t y = y0; y < y1; y++) {
+            for (uint16_t x = x0; x < x1; x++) {
+              buffer.drawPixel(x, y, ShaderMethods::buffer(shader.u0, shader.v0, shader.buffer, x, y));
+            }
+          }
+          return;
         }
-          
+        return;
       }
   };
 }

primatives/triangle.cpp

@@ -6,6 +6,7 @@
 #include "../datatypes.cpp"
 #include "../helpers.cpp"
 #include "../buffer.cpp"
+#include "../shader.cpp"
 
 namespace UwU {
   class Triangle {