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85 righe
3.3 KiB
85 righe
3.3 KiB
/*******************************************************************************************
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*
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* raylib [textures] example - image rotation
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*
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* Example complexity rating: [★★☆☆] 2/4
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*
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* Example originally created with raylib 1.0, last time updated with raylib 1.0
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*
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
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* BSD-like license that allows static linking with closed source software
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*
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* Copyright (c) 2014-2025 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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#define NUM_TEXTURES 3
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//------------------------------------------------------------------------------------
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// Program main entry point
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//------------------------------------------------------------------------------------
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [textures] example - image rotation");
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// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
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Image image45 = LoadImage("resources/raylib_logo.png");
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Image image90 = LoadImage("resources/raylib_logo.png");
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Image imageNeg90 = LoadImage("resources/raylib_logo.png");
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ImageRotate(&image45, 45);
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ImageRotate(&image90, 90);
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ImageRotate(&imageNeg90, -90);
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Texture2D textures[NUM_TEXTURES] = { 0 };
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textures[0] = LoadTextureFromImage(image45);
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textures[1] = LoadTextureFromImage(image90);
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textures[2] = LoadTextureFromImage(imageNeg90);
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int currentTexture = 0;
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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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// Update
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//----------------------------------------------------------------------------------
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if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT) || IsKeyPressed(KEY_RIGHT))
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{
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currentTexture = (currentTexture + 1)%NUM_TEXTURES; // Cycle between the textures
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}
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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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DrawTexture(textures[currentTexture], screenWidth/2 - textures[currentTexture].width/2, screenHeight/2 - textures[currentTexture].height/2, WHITE);
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DrawText("Press LEFT MOUSE BUTTON to rotate the image clockwise", 250, 420, 10, DARKGRAY);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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for (int i = 0; i < NUM_TEXTURES; i++) UnloadTexture(textures[i]);
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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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