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

Examples/Models/BoxCollisions.cs

@@ -0,0 +1,144 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Detect basic 3d collisions (box vs sphere vs box)
+*
+*   This example has been created using raylib 1.3 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Models;
+
+public class BoxCollisions
+{
+    public static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        const int screenWidth = 800;
+        const int screenHeight = 450;
+
+        InitWindow(screenWidth, screenHeight, "raylib [models] example - box collisions");
+
+        // Define the camera to look into our 3d world
+        Camera3D camera = new();
+        camera.Position = new Vector3(0.0f, 10.0f, 10.0f);
+        camera.Target = new Vector3(0.0f, 0.0f, 0.0f);
+        camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
+        camera.FovY = 45.0f;
+        camera.Projection = CameraProjection.CAMERA_PERSPECTIVE;
+
+        Vector3 playerPosition = new(0.0f, 1.0f, 2.0f);
+        Vector3 playerSize = new(1.0f, 2.0f, 1.0f);
+        Color playerColor = Color.GREEN;
+
+        Vector3 enemyBoxPos = new(-4.0f, 1.0f, 0.0f);
+        Vector3 enemyBoxSize = new(2.0f, 2.0f, 2.0f);
+
+        Vector3 enemySpherePos = new(4.0f, 0.0f, 0.0f);
+        float enemySphereSize = 1.5f;
+
+        bool collision = false;
+
+        SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
+        //--------------------------------------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //----------------------------------------------------------------------------------
+
+            // Move player
+            if (IsKeyDown(KeyboardKey.KEY_RIGHT))
+            {
+                playerPosition.X += 0.2f;
+            }
+            else if (IsKeyDown(KeyboardKey.KEY_LEFT))
+            {
+                playerPosition.X -= 0.2f;
+            }
+            else if (IsKeyDown(KeyboardKey.KEY_DOWN))
+            {
+                playerPosition.Z += 0.2f;
+            }
+            else if (IsKeyDown(KeyboardKey.KEY_UP))
+            {
+                playerPosition.Z -= 0.2f;
+            }
+
+            collision = false;
+
+            // Check collisions player vs enemy-box
+            BoundingBox box1 = new(
+                playerPosition - (playerSize / 2),
+                playerPosition + (playerSize / 2)
+            );
+            BoundingBox box2 = new(
+                enemyBoxPos - (enemyBoxSize / 2),
+                enemyBoxPos + (enemyBoxSize / 2)
+            );
+
+            if (CheckCollisionBoxes(box1, box2))
+            {
+                collision = true;
+            }
+
+            // Check collisions player vs enemy-sphere
+            if (CheckCollisionBoxSphere(box1, enemySpherePos, enemySphereSize))
+            {
+                collision = true;
+            }
+
+            if (collision)
+            {
+                playerColor = Color.RED;
+            }
+            else
+            {
+                playerColor = Color.GREEN;
+            }
+            //----------------------------------------------------------------------------------
+
+            // Draw
+            //----------------------------------------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.RAYWHITE);
+
+            BeginMode3D(camera);
+
+            // Draw enemy-box
+            DrawCube(enemyBoxPos, enemyBoxSize.X, enemyBoxSize.Y, enemyBoxSize.Z, Color.GRAY);
+            DrawCubeWires(enemyBoxPos, enemyBoxSize.X, enemyBoxSize.Y, enemyBoxSize.Z, Color.DARKGRAY);
+
+            // Draw enemy-sphere
+            DrawSphere(enemySpherePos, enemySphereSize, Color.GRAY);
+            DrawSphereWires(enemySpherePos, enemySphereSize, 16, 16, Color.DARKGRAY);
+
+            // Draw player
+            DrawCubeV(playerPosition, playerSize, playerColor);
+
+            DrawGrid(10, 1.0f);
+
+            EndMode3D();
+
+            DrawText("Move player with cursors to collide", 220, 40, 20, Color.GRAY);
+            DrawFPS(10, 10);
+
+            EndDrawing();
+            //----------------------------------------------------------------------------------
+        }
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        CloseWindow();
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}