raylib/examples/core_3d_camera_free.lua

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2016-08-06 12:32:35 +03:00
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--
-- raylib [core] example - Initialize 3d camera free
--
-- 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
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local screenWidth = 800
local screenHeight = 450
InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free")
-- 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, 0.0, 0.0)
SetCameraMode(CameraMode.FREE) -- Set a free camera mode
SetCameraPosition(camera.position) -- Set internal camera position to match our camera position
SetCameraTarget(camera.target) -- Set internal camera target to match our camera target
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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camera = UpdateCamera(camera) -- Update internal camera and our camera
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-- Draw
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BeginDrawing()
ClearBackground(RAYWHITE)
Begin3dMode(camera)
DrawCube(cubePosition, 2.0, 2.0, 2.0, RED)
DrawCubeWires(cubePosition, 2.0, 2.0, 2.0, MAROON)
DrawGrid(10, 1.0)
End3dMode()
DrawRectangle( 10, 10, 320, 133, Fade(SKYBLUE, 0.5))
DrawRectangleLines( 10, 10, 320, 133, BLUE)
DrawText("Free camera default controls:", 20, 20, 10, BLACK)
DrawText("- Mouse Wheel to Zoom in-out", 40, 40, 10, DARKGRAY)
DrawText("- Mouse Wheel Pressed to Pan", 40, 60, 10, DARKGRAY)
DrawText("- Alt + Mouse Wheel Pressed to Rotate", 40, 80, 10, DARKGRAY)
DrawText("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom", 40, 100, 10, DARKGRAY)
DrawText("- Z to zoom to (0, 0, 0)", 40, 120, 10, DARKGRAY)
EndDrawing()
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end
-- De-Initialization
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CloseWindow() -- Close window and OpenGL context
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