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87 lines
3.2 KiB
87 lines
3.2 KiB
/*******************************************************************************************
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*
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* raylib [core] example - Mouse wheel (adapted for HTML5 platform)
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*
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* This example has been created using raylib 1.3 (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) 2015 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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#if defined(PLATFORM_WEB)
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#include <emscripten/emscripten.h>
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#endif
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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int screenWidth = 800;
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int screenHeight = 450;
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int boxPositionY;
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int scrollSpeed = 4; // Scrolling speed in pixels
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//----------------------------------------------------------------------------------
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// Module Functions Declaration
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//----------------------------------------------------------------------------------
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void UpdateDrawFrame(void); // Update and Draw one frame
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//----------------------------------------------------------------------------------
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// Main Enry Point
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//----------------------------------------------------------------------------------
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int main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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InitWindow(screenWidth, screenHeight, "raylib [core] example - mouse wheel");
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boxPositionY = screenHeight/2 - 40;
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#if defined(PLATFORM_WEB)
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emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
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#else
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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UpdateDrawFrame();
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}
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#endif
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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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return 0;
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}
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//----------------------------------------------------------------------------------
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// Module Functions Definition
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//----------------------------------------------------------------------------------
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void UpdateDrawFrame(void)
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{
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// Update
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//----------------------------------------------------------------------------------
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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(FormatText("Box position Y: %03i", boxPositionY), 10, 40, 20, LIGHTGRAY);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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