raylib/examples/models_billboard.lua

62 lines
2.4 KiB
Lua

-------------------------------------------------------------------------------------------
--
-- raylib [models] example - Drawing billboards
--
-- 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 - drawing billboards")
-- Define the camera to look into our 3d world
local camera = Camera(Vector3(5.0, 4.0, 5.0), Vector3(0.0, 2.0, 0.0), Vector3(0.0, 1.0, 0.0), 45.0)
local bill = LoadTexture("resources/billboard.png") -- Our texture billboard
local billPosition = Vector3(0.0, 2.0, 0.0) -- Position where draw billboard
SetCameraMode(camera, CameraMode.ORBITAL) -- Set an orbital camera mode
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
---------------------------------------------------------------------------------------
camera = UpdateCamera(camera) -- Update camera
---------------------------------------------------------------------------------------
-- Draw
---------------------------------------------------------------------------------------
BeginDrawing()
ClearBackground(RAYWHITE)
Begin3dMode(camera)
DrawBillboard(camera, bill, billPosition, 2.0, WHITE)
DrawGrid(10, 1.0) -- Draw a grid
End3dMode()
DrawFPS(10, 10)
EndDrawing()
---------------------------------------------------------------------------------------
end
-- De-Initialization
-------------------------------------------------------------------------------------------
UnloadTexture(bill) -- Unload texture
CloseWindow() -- Close window and OpenGL context
-------------------------------------------------------------------------------------------