81 lines
3.5 KiB
C++
81 lines
3.5 KiB
C++
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/*******************************************************************************************
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*
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* raylib [textures] example - Image loading and drawing on it
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*
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* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
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*
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* This example has been created using raylib 1.4 (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) 2016 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib-cpp.hpp"
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int main(void) {
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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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raylib::Window window(screenWidth, screenHeight, "raylib [textures] example - image drawing");
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raylib::Color darkGray = DARKGRAY;
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// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
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raylib::Image cat("resources/cat.png"); // Load image in CPU memory (RAM)
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cat.Crop(raylib::Rectangle(100, 10, 280, 380)) // Crop an image piece
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.FlipHorizontal() // Flip cropped image horizontally
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.Resize(150, 200); // Resize flipped-cropped image
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raylib::Image parrots("resources/parrots.png"); // Load image in CPU memory (RAM)
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// Draw one image over the other with a scaling of 1.5f
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parrots
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.Draw(cat,
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raylib::Rectangle(0, 0, cat.GetWidth(), cat.GetHeight()),
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raylib::Rectangle(30, 40, cat.GetWidth() * 1.5f, cat.GetHeight() * 1.5f));
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parrots.Crop(raylib::Rectangle(0, 50, parrots.GetWidth(), parrots.GetHeight() - 100)); // Crop resulting image
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// Load custom font for frawing on image
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raylib::Font font("resources/custom_jupiter_crash.png");
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// Draw over image using custom font
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parrots.DrawText(font, "PARROTS & CAT", raylib::Vector2(300, 230), font.baseSize, -2);
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raylib::Texture2D texture(parrots); // Image converted to texture, uploaded to GPU memory (VRAM)
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SetTargetFPS(60);
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//---------------------------------------------------------------------------------------
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// Main game loop
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while (!window.ShouldClose()) { // Detect window close button or ESC key
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// Update
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//----------------------------------------------------------------------------------
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// Update your variables here
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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{
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window.ClearBackground(RAYWHITE);
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texture.Draw(screenWidth / 2 - texture.width / 2,
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screenHeight / 2 - texture.height / 2 - 40);
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darkGray.DrawRectangleLines(screenWidth / 2 - texture.width / 2,
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screenHeight / 2 - texture.height / 2 - 40,
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texture.width, texture.height);
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darkGray.DrawText("We are drawing only one texture from various images composed!",
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240, 350, 10);
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darkGray.DrawText("Source images have been cropped, scaled, flipped and copied one over the other.",
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190, 370, 10);
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}
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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return 0;
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}
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