137 lines
4.3 KiB
C#
137 lines
4.3 KiB
C#
/*******************************************************************************************
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*
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* raylib [textures] example - image text
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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 1.8, last time updated with raylib 4.0
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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) 2017-2025 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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using System.Numerics;
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using static Raylib_cs.Raylib;
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namespace Examples.Textures;
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public partial class ImageText : IExample
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{
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private const int screenWidth = 800;
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private const int screenHeight = 450;
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public string Name => "Textures / Image Text";
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public string Title => "raylib [textures] example - image text";
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private Font font;
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private Texture2D texture;
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private Vector2 position;
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private bool showFont;
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public void Init()
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{
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var parrots = LoadImage("resources/parrots.png"); // Load image in CPU memory (RAM)
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// TTF Font loading with custom generation parameters
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font = LoadFontEx("resources/fonts/KAISG.ttf", 64, null, 0);
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// Draw over image using custom font
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ImageDrawTextEx(
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ref parrots,
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font,
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"[Parrots font drawing]",
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new Vector2(20, 20),
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font.BaseSize,
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0,
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Color.Red
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);
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texture = LoadTextureFromImage(parrots); // Image converted to texture, uploaded to GPU memory (VRAM)
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UnloadImage(parrots); // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
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position = new(
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screenWidth / 2 - texture.Width / 2,
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screenHeight / 2 - texture.Height / 2 - 20
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);
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showFont = false;
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}
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public void Update()
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{
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// Update
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//----------------------------------------------------------------------------------
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if (IsKeyDown(KeyboardKey.Space))
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{
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showFont = true;
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}
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else
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{
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showFont = false;
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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(Color.RayWhite);
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if (!showFont)
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{
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// Draw texture with text already drawn inside
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DrawTextureV(texture, position, Color.White);
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// Draw text directly using sprite font
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Vector2 textPosition = new(position.X + 20, position.Y + 20 + 280);
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DrawTextEx(font, "[Parrots font drawing]", textPosition, font.BaseSize, 0, Color.White);
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}
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else
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{
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DrawTexture(font.Texture, screenWidth / 2 - font.Texture.Width / 2, 50, Color.Black);
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}
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DrawText("PRESS SPACE to SHOW FONT ATLAS USED", 290, 420, 10, Color.DarkGray);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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public void Unload()
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{
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UnloadTexture(texture); // Texture unloading
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UnloadFont(font); // Unload custom font
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}
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public static int Main()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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InitWindow(screenWidth, screenHeight, "raylib [textures] example - image text");
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SetTargetFPS(60);
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//--------------------------------------------------------------------------------------
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var game = new ImageText();
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game.Init();
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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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game.Update();
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}
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game.Unload();
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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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