Created
May 25, 2024 13:28
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Munching squares example for Fenster
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#include "fenster.h" | |
#define W 1920 | |
#define H 1080 | |
static void fenster_rect(struct fenster *f, int x, int y, int w, int h, uint32_t c) { | |
for (int row = 0; row < h; row++) { | |
for (int col = 0; col < w; col++) { | |
fenster_pixel(f, x + col, y + row) = c; | |
} | |
} | |
} | |
static int run() { | |
uint32_t buf[W * H]; | |
struct fenster f = { | |
.title = "Munching squares", | |
.width = W, | |
.height = H, | |
.buf = buf, | |
}; | |
fenster_open(&f); | |
uint32_t t = 0; | |
int64_t now = fenster_time(); | |
while (fenster_loop(&f) == 0) { | |
t++; | |
if (f.keys[27]) { | |
break; | |
} | |
for (int x = 0; x < W; x++) { | |
for (int y = 0; y < H; y++) { | |
fenster_pixel(&f, x, y) = x ^ y ^ t + 0x220000; | |
} | |
} | |
if (f.x > 5 && f.y > 5 && f.x < f.width - 5 && f.y < f.height - 5) { | |
fenster_rect(&f, f.x - 4, f.y - 4, 8, 8, f.mouse ? 0xffffff : 0x00ff00); | |
} | |
int64_t time = fenster_time(); | |
if (time - now < 1000 / 60) { | |
fenster_sleep(time - now); | |
} | |
now = time; | |
} | |
fenster_close(&f); | |
return 0; | |
} | |
int main() { | |
return run(); | |
} |
Updated build.zig
for use with fenster.h under Linux and Zig 0.13.0-dev
const std = @import("std");
pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const exe = b.addExecutable(.{
.name = "minimal-zig",
.root_source_file = b.path("src/main.zig"),
.target = target,
.optimize = optimize,
});
exe.addIncludePath(b.path("src"));
exe.addCSourceFiles(.{
.root = b.path("src"),
.files = &.{"fenster.c"},
});
exe.linkLibC();
exe.linkSystemLibrary("X11");
b.installArtifact(exe);
const run_cmd = b.addRunArtifact(exe);
run_cmd.step.dependOn(b.getInstallStep());
if (b.args) |args| {
run_cmd.addArgs(args);
}
const run_step = b.step("run", "Run the app");
run_step.dependOn(&run_cmd.step);
}
src/fenster.c
#include "../include/fenster.h"
src/fenster.h
#define FENSTER_HEADER
#include "../include/fenster.h"
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🪟 Fenster
Depending on
fenster.h
from https://github.com/zserge/fenster/Compilation using
zig cc
zig cc -lc -lX11 -o fenster_munching_squares fenster_munching_squares.c && ./fenster_munching_squares