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-------------------------------------------------------------------------------------------
--
-- raylib [models] example - Detect basic 3d collisions (box vs sphere vs box)
--
-- This example has been created using raylib 1.6 (www.raylib.com)
-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
--
-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
--
-------------------------------------------------------------------------------------------
-- Initialization
-------------------------------------------------------------------------------------------
local screenWidth = 800
local screenHeight = 450
InitWindow(screenWidth, screenHeight, "raylib [models] example - box collisions")
-- Define the camera to look into our 3d world
local camera = Camera(Vector3(0.0, 10.0, 10.0), Vector3(0.0, 0.0, 0.0), Vector3(0.0, 1.0, 0.0), 45.0)
local playerPosition = Vector3(0.0, 1.0, 2.0)
local playerSize = Vector3(1.0, 2.0, 1.0)
local playerColor = GREEN
local enemyBoxPos = Vector3(-4.0, 1.0, 0.0)
local enemyBoxSize = Vector3(2.0, 2.0, 2.0)
local enemySpherePos = Vector3(4.0, 0.0, 0.0)
local enemySphereSize = 1.5
local collision = false
SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
-------------------------------------------------------------------------------------------
-- Main game loop
while not WindowShouldClose() do -- Detect window close button or ESC key
-- Update
---------------------------------------------------------------------------------------
-- Move player
if (IsKeyDown(KEY.RIGHT)) then playerPosition.x = playerPosition.x + 0.2
elseif (IsKeyDown(KEY.LEFT)) then playerPosition.x = playerPosition.x - 0.2
elseif (IsKeyDown(KEY.DOWN)) then playerPosition.z = playerPosition.z + 0.2
elseif (IsKeyDown(KEY.UP)) then playerPosition.z = playerPosition.z - 0.2 end
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)))) then collision = true
end
-- 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)) then collision = true
end
if (collision) then playerColor = RED
else playerColor = GREEN end
---------------------------------------------------------------------------------------
-- Draw
---------------------------------------------------------------------------------------
BeginDrawing()
ClearBackground(RAYWHITE)
Begin3dMode(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
End3dMode()
DrawText("Move player with cursors to collide", 220, 40, 20, GRAY)
DrawFPS(10, 10)
EndDrawing()
---------------------------------------------------------------------------------------
end
-- De-Initialization
-------------------------------------------------------------------------------------------
CloseWindow() -- Close window and OpenGL context
-------------------------------------------------------------------------------------------
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