Reviewed new examples

examples/core/core_scissor_test.c

@@ -5,6 +5,8 @@
 *   This example has been created using raylib 2.5 (www.raylib.com)
 *   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
 *
+*   Example contributed by Chris Dill (@MysteriousSpace) and reviewed by Ramon Santamaria (@raysan5)
+*
 *   Copyright (c) 2019 Chris Dill (@MysteriousSpace)
 *
 ********************************************************************************************/
@@ -20,10 +22,10 @@ int main(void)
 
     InitWindow(screenWidth, screenHeight, "raylib [core] example - scissor test");
 
-    Rectangle scissorArea = { 0, 0, 300, 300};
+    Rectangle scissorArea = { 0, 0, 300, 300 };
     bool scissorMode = true;
 
-    SetTargetFPS(60);
+    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
 
     // Main game loop
@@ -31,14 +33,11 @@ int main(void)
     {
         // Update
         //----------------------------------------------------------------------------------
-        if (IsKeyPressed(KEY_S))
-        {
-            scissorMode = !scissorMode;
-        }
+        if (IsKeyPressed(KEY_S)) scissorMode = !scissorMode;
 
         // Centre the scissor area around the mouse position
-        scissorArea.x = GetMouseX() - scissorArea.width / 2;
-        scissorArea.y = GetMouseY() - scissorArea.height / 2;
+        scissorArea.x = GetMouseX() - scissorArea.width/2;
+        scissorArea.y = GetMouseY() - scissorArea.height/2;
         //----------------------------------------------------------------------------------
 
         // Draw
@@ -47,22 +46,17 @@ int main(void)
 
             ClearBackground(RAYWHITE);
 
-            if (scissorMode)
-            {
-                BeginScissorMode(scissorArea.x, scissorArea.y, scissorArea.width, scissorArea.height);
-            }
+            if (scissorMode) BeginScissorMode(scissorArea.x, scissorArea.y, scissorArea.width, scissorArea.height);
 
-            DrawRectangle(80, 45, 640, 360, RED);
-            DrawRectangleLines(80, 45, 640, 360, BLACK);
+            // Draw full screen rectangle and some text
+            // NOTE: Only part defined by scissor area will be rendered
+            DrawRectangle(0, 0, GetScreenWidth(), GetScreenHeight(), RED);
             DrawText("Move the mouse around to reveal this text!", 190, 200, 20, LIGHTGRAY);
 
-            if (scissorMode)
-            {
-                EndScissorMode();
-            }
+            if (scissorMode) EndScissorMode();
 
-            DrawRectangleLinesEx(scissorArea, 2, BLACK);
-            DrawText("Press s to toggle scissor test", 10, 10, 20, DARKGRAY);
+            DrawRectangleLinesEx(scissorArea, 1, BLACK);
+            DrawText("Press S to toggle scissor test", 10, 10, 20, BLACK);
 
         EndDrawing();
         //----------------------------------------------------------------------------------