环境
- Time 2023-08-22
- Zig 0.11.0
- WSL-Ubuntu 22.04.3 LTS
前言
说明
参考资料：
- https://www.youtube.com/watch?v=nF_crEtmpBo
- https://github.com/howprice/sdl2-tetris
目标
手动将各种方块渲染到屏幕上。
方块定义 block.zig 文件，先手动将 tetriminoes 定义为 pub，手动画后，再修改回私有。
main.zig
const c = @import("c.zig");
const display = @import("display.zig");
const block = @import("block.zig");pub fn main() !void {var screen = display.Screen{};screen.init();defer screen.deinit();mainLoop: while (true) {var event: c.SDL_Event = undefined;while (c.SDL_PollEvent(&event) != 0) {if (event.type == c.SDL_QUIT)break :mainLoop;}screen.update();var tetrimino = block.tetriminoes[0];draw(&tetrimino, &screen);tetrimino = block.tetriminoes[1];tetrimino.y = 3;draw(&tetrimino, &screen);tetrimino = block.tetriminoes[2];tetrimino.y = 6;draw(&tetrimino, &screen);tetrimino = block.tetriminoes[3];tetrimino.y = 9;draw(&tetrimino, &screen);tetrimino = block.tetriminoes[4];tetrimino.y = 12;draw(&tetrimino, &screen);tetrimino = block.tetriminoes[5];tetrimino.y = 15;draw(&tetrimino, &screen);tetrimino = block.tetriminoes[6];tetrimino.y = 18;draw(&tetrimino, &screen);screen.present();}
}fn draw(tetrimino: *block.Tetrimino, screen: *display.Screen) void {const value = tetrimino.position();var index: usize = 0;while (index < value.len) : (index += 2) {const row: usize = @intCast(tetrimino.x + value[index]);const col: usize = @intCast(tetrimino.y + value[index + 1]);screen.draw(row, col, tetrimino.color);}
}
效果
总结
手动渲染了各种方块，将其排列成一竖排。