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Add raylib lua examples

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raysan5 2016-08-06 11:32:35 +02:00
parent 5f1b4e9474
commit 00c7e54d3c
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examples/core_3d_picking.lua Normal file
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--
-- raylib [core] example - Picking in 3d mode
--
-- 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)
--
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-- Initialization
-------------------------------------------------------------------------------------------
local screenWidth = 800
local screenHeight = 450
InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d picking")
-- Define the camera to look into our 3d world
local camera = {}
camera.position = Vector3(0.0, 10.0, 10.0) -- Camera position
camera.target = Vector3(0.0, 0.0, 0.0) -- Camera looking at point
camera.up = Vector3(0.0, 1.0, 0.0) -- Camera up vector (rotation towards target)
camera.fovy = 45.0 -- Camera field-of-view Y
local cubePosition = Vector3(0.0, 1.0, 0.0)
local cubeSize = Vector3(2.0, 2.0, 2.0)
local ray = Ray(Vector3(0, 0, 0), Vector3(0, 0, 0)) -- Picking line ray
local collision = false
SetCameraMode(CameraMode.FREE) -- Set a free camera mode
SetCameraPosition(camera.position) -- Set internal camera position to match our camera position
SetCameraFovy(camera.fovy) -- Set internal camera field-of-view Y
SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
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-- Main game loop
while not WindowShouldClose() do -- Detect window close button or ESC key
-- Update
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UpdateCamera(camera) -- Update internal camera and our camera
if (IsMouseButtonPressed(MOUSE.LEFT_BUTTON)) then
-- NOTE: This function is NOT WORKING properly!
ray = GetMouseRay(GetMousePosition(), camera)
-- Check collision between ray and box
collision = CheckCollisionRayBox(ray,
(BoundingBox){(Vector3){ cubePosition.x - cubeSize.x/2, cubePosition.y - cubeSize.y/2, cubePosition.z - cubeSize.z/2 },
(Vector3){ cubePosition.x + cubeSize.x/2, cubePosition.y + cubeSize.y/2, cubePosition.z + cubeSize.z/2 }})
end
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-- Draw
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BeginDrawing()
ClearBackground(RAYWHITE)
Begin3dMode(camera)
if (collision) then
DrawCube(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, RED)
DrawCubeWires(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, MAROON)
DrawCubeWires(cubePosition, cubeSize.x + 0.2, cubeSize.y + 0.2, cubeSize.z + 0.2, GREEN)
else
DrawCube(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, GRAY)
DrawCubeWires(cubePosition, cubeSize.x, cubeSize.y, cubeSize.z, DARKGRAY)
end
DrawRay(ray, MAROON)
DrawGrid(10, 1.0)
End3dMode()
DrawText("Try selecting the box with mouse!", 240, 10, 20, DARKGRAY)
if (collision) then
DrawText("BOX SELECTED", (screenWidth - MeasureText("BOX SELECTED", 30))/2, screenHeight*0.1, 30, GREEN)
end
DrawFPS(10, 10)
EndDrawing()
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end
-- De-Initialization
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CloseWindow() -- Close window and OpenGL context
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