Reviewed examples

examples/textures/textures_polygon.c

@@ -15,7 +15,7 @@
 #include "raylib.h"
 #include "raymath.h"
 
-#define MAX_POINTS  11  // 10 points and back to the start
+#define MAX_POINTS  11      // 10 points and back to the start
 
 int main(void)
 {
@@ -23,7 +23,10 @@ int main(void)
     //--------------------------------------------------------------------------------------
     const int screenWidth = 800;
     const int screenHeight = 450;
+    
+    InitWindow(screenWidth, screenHeight, "raylib [textures] example - textured polygon");
 
+    // Define texture coordinates to map our texture to poly
     Vector2 texcoords[MAX_POINTS] = {
         (Vector2){ 0.75f, 0.0f },
         (Vector2){ 0.25f, 0.0f },
@@ -38,22 +41,24 @@ int main(void)
         (Vector2){ 0.75f, 0.0f}  // Close the poly
     };
 
+    // Define the base poly vertices from the UV's
+    // NOTE: They can be specified in any other way
     Vector2 points[MAX_POINTS] = { 0 };
-
-    // Create the poly coords from the UV's
-    // you don't have to do this you can specify
-    // them however you want
     for (int i = 0; i < MAX_POINTS; i++)
     {
         points[i].x = (texcoords[i].x - 0.5f)*256.0f;
         points[i].y = (texcoords[i].y - 0.5f)*256.0f;
     }
+    
+    // Define the vertices drawing position
+    // NOTE: Initially same as points but updated every frame
+    Vector2 positions[MAX_POINTS] = { 0 };
+    for (int i = 0; i < MAX_POINTS; i++) positions[i] = points[i];
 
-    InitWindow(screenWidth, screenHeight, "raylib [textures] example - textured polygon");
-
+    // Load texture to be mapped to poly
     Texture texture = LoadTexture("resources/cat.png");
 
-    float angle = 0.0f;
+    float angle = 0.0f;             // Rotation angle (in degrees)
 
     SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
@@ -63,10 +68,9 @@ int main(void)
     {
         // Update
         //----------------------------------------------------------------------------------
+        // Update points rotation with an angle transform
+        // NOTE: Base points position are not modified
         angle++;
-
-        Vector2 positions[MAX_POINTS] = { 0 };
-
         for (int i = 0; i < MAX_POINTS; i++) positions[i] = Vector2Rotate(points[i], angle*DEG2RAD);
         //----------------------------------------------------------------------------------