/*******************************************************************************************

*

* 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)

*

********************************************************************************************/

<?php

// Initialization

//--------------------------------------------------------------------------------------

$screenWidth = 800;

$screenHeight = 450;

InitWindow($screenWidth, $screenHeight, "raylib [models] example - box collisions");

// Define the camera to look into our 3d world

$camera = Camera3D(Vector3(0.0, 10.0, 10.0), Vector3(0.0, 0.0, 0.0), Vector3(0.0, 1.0, 0.0), 45.0, 0);

$playerPosition = Vector3(0.0, 1.0, 2.0);

$playerSize = Vector3(1.0, 2.0, 1.0);

$playerColor = GREEN();

$enemyBoxPos = Vector3(-4.0, 1.0, 0.0 );

$enemyBoxSize = Vector3(2.0, 2.0, 2.0 );

$enemySpherePos = Vector3(4.0, 0.0, 0.0 );

$enemySphereSize = 1.5;

$collision = false;

SetTargetFPS(60); // Set our game to run at 60 frames-per-second

//--------------------------------------------------------------------------------------

// Main game loop

while (!WindowShouldClose()) // Detect window close button or ESC key

{

// Update

//----------------------------------------------------------------------------------

// Move player

if (IsKeyDown(RL_KEY_RIGHT)) $playerPosition->x = $playerPosition->x + 0.2;

else if (IsKeyDown(RL_KEY_LEFT)) $playerPosition->x =$playerPosition->x - 0.2;

else if (IsKeyDown(RL_KEY_DOWN)) $playerPosition->z = $playerPosition->z + 0.2;

else if (IsKeyDown(RL_KEY_UP)) $playerPosition->z = $playerPosition->z - 0.2;

$collision = false;

// Check collisions player vs enemy-box

if (CheckCollisionBoxes(

BoundingBox(Vector3($playerPosition->x - $playerSize->x/2,

$playerPosition->y - $playerSize->y/2,

$playerPosition->z - $playerSize->z/2 ),

Vector3($playerPosition->x + $playerSize->x/2,

$playerPosition->y + $playerSize->y/2,

$playerPosition->z + $playerSize->z/2 )),

BoundingBox(Vector3($enemyBoxPos->x - $enemyBoxSize->x/2,

$enemyBoxPos->y - $enemyBoxSize->y/2,

$enemyBoxPos->z - $enemyBoxSize->z/2 ),

Vector3($enemyBoxPos->x + $enemyBoxSize->x/2,

$enemyBoxPos->y + $enemyBoxSize->y/2,

$enemyBoxPos->z + $enemyBoxSize->z/2 )))) $collision = true;

// Check collisions player vs enemy-sphere

if (CheckCollisionBoxSphere(

BoundingBox(Vector3($playerPosition->x - $playerSize->x/2,

$playerPosition->y - $playerSize->y/2,

$playerPosition->z - $playerSize->z/2),

Vector3($playerPosition->x + $playerSize->x/2,

$playerPosition->y + $playerSize->y/2,

$playerPosition->z + $playerSize->z/2)),

$enemySpherePos, $enemySphereSize)) $collision = true;

if ($collision) $playerColor = RED();

else $playerColor = GREEN();

//----------------------------------------------------------------------------------

// Draw

//----------------------------------------------------------------------------------

BeginDrawing();

ClearBackground(RAYWHITE());

BeginMode3D($camera);

// Draw enemy-box

DrawCube($enemyBoxPos, $enemyBoxSize->x, $enemyBoxSize->y, $enemyBoxSize->z, GRAY());

DrawCubeWires($enemyBoxPos, $enemyBoxSize->x, $enemyBoxSize->y, $enemyBoxSize->z, DARKGRAY());

// Draw enemy-sphere

DrawSphere($enemySpherePos, $enemySphereSize, GRAY());

DrawSphereWires($enemySpherePos, $enemySphereSize, 16, 16, DARKGRAY());

// Draw player

DrawCubeV($playerPosition, $playerSize, $playerColor);

DrawGrid(10, 1.0); // Draw a grid

EndMode3D();

DrawText("Move player with cursors to collide", 220, 40, 20, GRAY());

DrawFPS(10, 10);

EndDrawing();

//----------------------------------------------------------------------------------

}

// De-Initialization

//--------------------------------------------------------------------------------------

CloseWindow(); // Close window and OpenGL context

//--------------------------------------------------------------------------------------