Review ALL examples

examples/models/models_billboard.c

@@ -11,12 +11,12 @@
 
 #include "raylib.h"
 
-int main()
+int main(void)
 {
     // Initialization
     //--------------------------------------------------------------------------------------
-    int screenWidth = 800;
-    int screenHeight = 450;
+    const int screenWidth = 800;
+    const int screenHeight = 450;
 
     InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards");
 
@@ -27,10 +27,10 @@ int main()
     camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };
     camera.fovy = 45.0f;
     camera.type = CAMERA_PERSPECTIVE;
-    
+
     Texture2D bill = LoadTexture("resources/billboard.png");     // Our texture billboard
     Vector3 billPosition = { 0.0f, 2.0f, 0.0f };                 // Position where draw billboard
-    
+
     SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
 
     SetTargetFPS(60);                       // Set our game to run at 60 frames-per-second
@@ -51,11 +51,11 @@ int main()
             ClearBackground(RAYWHITE);
 
             BeginMode3D(camera);
-                
+
                 DrawGrid(10, 1.0f);        // Draw a grid
-                
+
                 DrawBillboard(camera, bill, billPosition, 2.0f, WHITE);
-                
+
             EndMode3D();
 
             DrawFPS(10, 10);