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50 lines
2.0 KiB
50 lines
2.0 KiB
-------------------------------------------------------------------------------------------
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--
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-- raylib [core] examples - Mouse wheel
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--
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-- This example has been created using raylib 1.6 (www.raylib.com)
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-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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--
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-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
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--
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-------------------------------------------------------------------------------------------
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-- Initialization
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-------------------------------------------------------------------------------------------
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local screenWidth = 800
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local screenHeight = 450
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InitWindow(screenWidth, screenHeight, "raylib [core] example - mouse wheel")
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local boxPositionY = screenHeight/2 - 40
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local scrollSpeed = 4 -- Scrolling speed in pixels
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SetTargetFPS(60) -- Set target frames-per-second
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----------------------------------------------------------------------------------------
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-- Main game loop
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while not WindowShouldClose() do -- Detect window close button or ESC key
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-- Update
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------------------------------------------------------------------------------------
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boxPositionY = boxPositionY - (GetMouseWheelMove()*scrollSpeed)
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------------------------------------------------------------------------------------
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-- Draw
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------------------------------------------------------------------------------------
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BeginDrawing()
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ClearBackground(RAYWHITE)
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DrawRectangle(screenWidth/2 - 40, boxPositionY, 80, 80, MAROON)
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DrawText("Use mouse wheel to move the cube up and down!", 10, 10, 20, GRAY)
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DrawText(string.format("Box position Y: %03i", boxPositionY), 10, 40, 20, LIGHTGRAY)
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EndDrawing()
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------------------------------------------------------------------------------------
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end
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-- De-Initialization
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----------------------------------------------------------------------------------------
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CloseWindow() -- Close window and OpenGL context
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----------------------------------------------------------------------------------------
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