环境
- Time 2024-03-01
- Zig 0.12.0-dev.3076+6e078883e
- WSL-Ubuntu 22.04.3 LTS
- Raylib 5.0
前言
说明
参考资料：
- https://www.raylib.com/examples.html
目标
加载 TTF 字体文件并显示。
main.zig
const std = @import("std");
const ray = @import("raylib.zig");pub fn main() !void {const screenWidth: c_int = 800;const screenHeight: c_int = 450;ray.InitWindow(screenWidth, screenHeight, "raylib [texture] example");defer ray.CloseWindow();ray.SetTargetFPS(60);var parrots = ray.LoadImage("res/parrots.png"); // Load image in CPU memory (RAM)// TTF Font loading with custom generation parametersconst font = ray.LoadFontEx("resources/KAISG.ttf", 64, 0, 0);defer ray.UnloadFont(font);// Draw over image using custom fontconst size: f32 = 48;ray.ImageDrawTextEx(&parrots, font, "[Parrots font drawing]", .{ .x = 20.0, .y = 20.0 }, size, 0.0, ray.RED);const texture = ray.LoadTextureFromImage(parrots); // Image converted to texture, uploaded to GPU memory (VRAM)defer ray.UnloadTexture(texture);ray.UnloadImage(parrots); // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAMconst position = ray.Vector2{.x = @floatFromInt(screenWidth / 2 - @divTrunc(texture.width, 2)),.y = @floatFromInt(screenHeight / 2 - @divTrunc(texture.height, 2) - 20),};var showFont = false;while (!ray.WindowShouldClose()) {// UpdateshowFont = ray.IsKeyDown(ray.KEY_SPACE);// Drawray.BeginDrawing();defer ray.EndDrawing();ray.ClearBackground(ray.RAYWHITE);if (!showFont) {// Draw texture with text already drawn insideray.DrawTextureV(texture, position, ray.WHITE);// Draw text directly using sprite fontray.DrawTextEx(font, "[Parrots font drawing]", .{.x = position.x + 20,.y = position.y + 20 + 280,}, size, 0.0, ray.WHITE);} else {const x = screenWidth / 2 - @divTrunc(font.texture.width, 2);ray.DrawTexture(font.texture, x, 50, ray.BLACK);}ray.DrawText("PRESS SPACE to SHOW FONT ATLAS USED", 290, 420, 10, ray.DARKGRAY);ray.DrawFPS(10, 10);}
}
效果
总结
加载 TTF 字体文件并显示。