Update/merge examples back into main repo (#192)

Examples/Shapes/BouncingBall.cs

@@ -0,0 +1,96 @@
+/*******************************************************************************************
+*
+*   raylib [shapes] example - bouncing ball
+*
+*   This example has been created using raylib 1.0 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2013 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Shapes;
+
+public class BouncingBall
+{
+    public static int Main()
+    {
+        // Initialization
+        //---------------------------------------------------------
+        const int screenWidth = 800;
+        const int screenHeight = 450;
+
+        InitWindow(screenWidth, screenHeight, "raylib [shapes] example - bouncing ball");
+
+        Vector2 ballPosition = new(GetScreenWidth() / 2, GetScreenHeight() / 2);
+        Vector2 ballSpeed = new(5.0f, 4.0f);
+        int ballRadius = 20;
+
+        bool pause = false;
+        int framesCounter = 0;
+
+        SetTargetFPS(60);
+        //----------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //-----------------------------------------------------
+            if (IsKeyPressed(KeyboardKey.KEY_SPACE))
+            {
+                pause = !pause;
+            }
+
+            if (!pause)
+            {
+                ballPosition.X += ballSpeed.X;
+                ballPosition.Y += ballSpeed.Y;
+
+                // Check walls collision for bouncing
+                if ((ballPosition.X >= (GetScreenWidth() - ballRadius)) || (ballPosition.X <= ballRadius))
+                {
+                    ballSpeed.X *= -1.0f;
+                }
+                if ((ballPosition.Y >= (GetScreenHeight() - ballRadius)) || (ballPosition.Y <= ballRadius))
+                {
+                    ballSpeed.Y *= -1.0f;
+                }
+            }
+            else
+            {
+                framesCounter += 1;
+            }
+            //-----------------------------------------------------
+
+            // Draw
+            //-----------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.RAYWHITE);
+
+            DrawCircleV(ballPosition, ballRadius, Color.MAROON);
+            DrawText("PRESS SPACE to PAUSE BALL MOVEMENT", 10, GetScreenHeight() - 25, 20, Color.LIGHTGRAY);
+
+            // On pause, we draw a blinking message
+            if (pause && ((framesCounter / 30) % 2) == 0)
+            {
+                DrawText("PAUSED", 350, 200, 30, Color.GRAY);
+            }
+            DrawFPS(10, 10);
+
+            EndDrawing();
+            //-----------------------------------------------------
+        }
+
+        // De-Initialization
+        //---------------------------------------------------------
+        CloseWindow();
+        //----------------------------------------------------------
+
+        return 0;
+    }
+}
+