zzz/src/client/main.zig
2026-02-08 15:22:31 +01:00

431 lines
14 KiB
Zig

const std = @import("std");
const zm = @import("zmath");
// const bufzilla = @import("bufzilla");
const ft = @import("freetype");
const tracy = @import("tracy");
const kb = @import("kb");
const shared = @import("shared");
const c = @import("c.zig").c;
const enet = @import("c.zig").enet;
const rl = @import("c.zig").rl;
const client = @import("client.zig");
const entity = @import("entity.zig");
const misc = @import("misc.zig");
const font = @import("font.zig");
const chunk = @import("chunk.zig");
const dt : f32 = 1.0 / 240.0;
var t : f32 = 0;
var gt : f32 = 0;
var accumulator : f32 = 0;
var k : f32 = 1;
var frame : i32 = 0;
const screen_width = 1280;
const screen_height = 720;
var running: bool = true;
var dbg_allocator = std.heap.DebugAllocator(.{}){};
var the_chunk : shared.chunk.Chunk = undefined;
pub fn main() !void {
const tracy_zone = tracy.ZoneNC(@src(), "main", 0x00_ff_00_00);
defer tracy_zone.End();
const allocator = dbg_allocator.allocator();
defer {
const deinit_status = dbg_allocator.deinit();
if (deinit_status == .leak) {
@panic("LEAKED!");
}
}
var stdout = std.fs.File.stdout();
_ = try stdout.write("Hello, Client!\n");
if (enet.enet_initialize() != 0) {
std.log.info("Failed to load ENet", .{});
return;
}
defer enet.enet_deinitialize();
rl.SetConfigFlags(rl.FLAG_WINDOW_HIGHDPI);
rl.InitWindow(screen_width, screen_height, "zzz");
defer rl.CloseWindow();
font.ft_lib = try ft.Library.init();
const sizes = [_]i32{
30,
};
var vollkorn: [sizes.len]font.Font = undefined;
for (sizes, 0..) |pt, i| {
vollkorn[i] = try font.Font.init(
"assets/fonts/Vollkorn/static/Vollkorn-Regular.ttf",
pt,
allocator
);
}
defer {
for (&vollkorn) |*f| f.deinit(allocator);
}
font.shader = rl.LoadShader(null, "assets/text.frag");
// const test_shader1 = try rl.LoadShader(null, "assets/test_1.frag");
// const test_shader2 = try rl.LoadShader(null, "assets/test_2.frag");
const host = enet.enet_host_create(null, 32, 2, 0, 0);
defer enet.enet_host_destroy(host);
var address = enet.ENetAddress{ .port = shared.protocol_v1.SERVER_PORT };
_ = enet.enet_address_set_host(&address, "localhost");
const peer = enet.enet_host_connect(host, &address, 2, 0);
defer enet.enet_peer_reset(peer);
the_chunk = try shared.chunk.Chunk.init(allocator);
defer the_chunk.deinit(allocator);
// const camera = rl.Camera{
// .fovy = 45,
// .position = .{ .x = 0, .y = 0, .z = 10 },
// .projection = .perspective,
// .target = .{ .x = 0, .y = 0, .z = 0 },
// .up = .{ .x = 0, .y = 1, .z = 0 }
// };
// rl.initAudioDevice();
// if (rl.isAudioDeviceReady()) {
// std.log.info("audio device is ready!", .{});
// } else {
// std.log.info("audio device is NOT ready!", .{});
// }
// const music = try rl.loadMusicStream("assets/romantic-piano-431010.mp3");
// std.log.info("{}", .{rl.isMusicValid(music)});
// rl.playMusicStream(music);
// std.log.info("is music playing? {}", .{rl.isMusicStreamPlaying(music)});
var old_time : f32 = @floatCast(rl.GetTime());
while (!rl.WindowShouldClose()) {
const tracy_main_zone = tracy.ZoneNC(@src(), "loop", 0x00_aa_33_10);
defer tracy_main_zone.End();
const new_time : f32 = @floatCast(rl.GetTime());
var frame_time = new_time - old_time;
old_time = new_time;
if (frame_time > 0.25)
frame_time = 0.25;
t += frame_time;
accumulator += frame_time * k;
var event = enet.ENetEvent{};
while (enet.enet_host_service(host, &event, 0) > 0) {
switch (event.type) {
enet.ENET_EVENT_TYPE_CONNECT => {
std.log.info("A new client connected from {d}:{d}.", .{
event.peer.*.address.host,
event.peer.*.address.port
});
event.peer.*.data = @constCast(@ptrCast("Client information"));
},
enet.ENET_EVENT_TYPE_RECEIVE => {
try on_packet(allocator, event.packet, event.peer, event.channelID);
enet.enet_packet_destroy(event.packet);
},
enet.ENET_EVENT_TYPE_DISCONNECT => {
std.log.info("disconnect", .{});
},
else => {}
}
}
rl.PollInputEvents();
// if (peer.state() == .connected) {
// const packet = try znet.Packet.init("Hello, Server!", 0, .reliable);
// try peer.send(packet);
// }
// // _ = peer;
// rl.updateMusicStream(music);
while (accumulator > dt * k) {
the_chunk.update(dt * k);
accumulator -= dt * k;
gt += dt * k;
}
const drawing_zone = tracy.ZoneNC(@src(), "Drawing", 0x00_ff_00_00);
rl.BeginDrawing();
rl.ClearBackground(rl.SKYBLUE);
// const lorem = @embedFile("embeds/lorem.txt");
vollkorn[0].render_text(
"The night is long and cold outside.",
rl.Vector2{ .x = 0, .y = 0 },
true,
rl.WHITE,
rl.BLANK,
false,
true
);
// rl.beginShaderMode(test_shader1);
// rl.gl.rlBegin(rl.gl.rl_quads);
// {
// const topLeft : rl.Vector2 = .{
// .x = 0.0,
// .y = 0.0
// };
// const bottomRight : rl.Vector2 = .{
// .x = @as(f32, @floatFromInt(rl.getScreenWidth())) / 2.0,
// .y = @as(f32, @floatFromInt(rl.getScreenHeight()))
// };
// rl.gl.rlVertex2f(topLeft.x, topLeft.y);
// rl.gl.rlVertex2f(topLeft.x, bottomRight.y);
// rl.gl.rlVertex2f(bottomRight.x, bottomRight.y);
// rl.gl.rlVertex2f(bottomRight.x, topLeft.y);
// }
// rl.gl.rlEnd();
// rl.endShaderMode();
// rl.beginShaderMode(test_shader2);
// rl.gl.rlBegin(rl.gl.rl_quads);
// {
// const topLeft : rl.Vector2 = .{
// .x = @as(f32, @floatFromInt(rl.getScreenWidth())) / 2.0,
// .y = 0
// };
// const bottomRight : rl.Vector2 = .{
// .x = @floatFromInt(rl.getScreenWidth()),
// .y = @floatFromInt(rl.getScreenHeight())
// };
// rl.gl.rlVertex2f(topLeft.x, topLeft.y);
// rl.gl.rlVertex2f(topLeft.x, bottomRight.y);
// rl.gl.rlVertex2f(bottomRight.x, bottomRight.y);
// rl.gl.rlVertex2f(bottomRight.x, topLeft.y);
// }
// rl.gl.rlEnd();
// rl.endShaderMode();
// rl.beginShaderMode(test_shader2);
// rl.gl.rlBegin(rl.gl.rl_quads);
// {
// const topLeft : rl.Vector2 = .{ .x = @as(f32, @floatFromInt(rl.getScreenWidth())) / 2.0, .y = 0 };
// const bottomRight : rl.Vector2 = .{
// .x = @floatFromInt(rl.getScreenWidth()),
// .y = @floatFromInt(rl.getScreenHeight())
// };
// rl.gl.rlVertex2f(topLeft.x, topLeft.y);
// rl.gl.rlVertex2f(topLeft.x, bottomRight.y);
// rl.gl.rlVertex2f(bottomRight.x, bottomRight.y);
// rl.gl.rlVertex2f(bottomRight.x, topLeft.y);
// }
// rl.gl.rlEnd();
// rl.endShaderMode();
// rl.drawRectangle(400, 0, 400, 450, rl.Color{ .r = 54, .g = 54, .b = 54, .a = 255 });
// f.texture.drawPro(
// .{.x = 0, .y = 0, .width = 4096, .height = 4096},
// .{.x = 0, .y = 0, .width = 512, .height = 512 },
// .zero(), 0, .white);
// const connected_text = "Connected";
//const not_connected_text = "Not Connected";
// switch (peer.state()) {
// .connected => rl.drawText(
// connected_text,
// @divFloor(rl.getScreenWidth(), 2) - @divFloor(rl.measureText(connected_text, f.baseSize), 2),
// 50,
// 20,
// .white
// ),
// else => rl.drawText(
// not_connected_text,
// @divFloor(rl.getScreenWidth(), 2) - @divFloor(rl.measureText(not_connected_text, f.baseSize), 1),
// 50,
// 20,
// .white
// ),
// }
//@divFloor(rl.getScreenWidth(), 2) - @divFloor(rl.measureText(connected_text, f.baseSize), 2), 50
// const font_size : i32 = 180;
// const text_size = rl.Vector2{.x = @floatFromInt(rl.measureText(connected_text, font_size)),
// .y = font_size};//rl.measureTextEx(try rl.getFontDefault(), connected_text, font_size, font_size / 10);
// const pos = rl.Vector2{.x = 0, .y = 0};
// rl.drawText(connected_text, pos.x, pos.y, font_size, .white);
// rl.drawRectangleLines(pos.x, pos.y, @intFromFloat(text_size.x), @intFromFloat(text_size.y), .red);
// rl.drawRectangle(pos.x, pos.y, rl.getScreenWidth(), rl.getScreenHeight(), .white);
// rl.drawTexturePro(tx,
// rl.Rectangle{.x = 0, .y = 0, .width = 32, .height = 32},
// rl.Rectangle{.x = 100, .y = 100, .width = 500, .height = 500},
// .{.x = 0, .y = 0},
// 0,
// .white);
//rl.drawLineV(.{.x = @floatFromInt(@divFloor(rl.getScreenWidth(), 2)), .y = 0}, .{.x = @floatFromInt(@divFloor(rl.getScreenWidth(), 2)),
// .y = @floatFromInt(rl.getScreenHeight())}, .red);
//rl.drawText("Congrats! You created your first window!", rl.getMouseX(), rl.getMouseY(), 20, .white);
//rl.drawRectangleLines(0, 0, 100, 100, .red);
misc.drawFPS(0, 0, frame_time);
//elf.draw();
// rl.beginMode3D(camera);
// rl.drawSphere(.{ .x = 0, .y = 0, .z = 0 }, 1, .red);
// rl.endMode3D();
rl.EndDrawing();
drawing_zone.End();
const swap_zone = tracy.ZoneNC(@src(), "SwapScreenBuffer", 0x00_ff_00_00);
rl.SwapScreenBuffer();
swap_zone.End();
frame += 1;
tracy.FrameMark();
}
}
fn on_packet(allocator: std.mem.Allocator, packet: *enet.ENetPacket, peer: *enet.ENetPeer, channelID: i32) !void {
// std.log.info("A packet of length {d} containing {s} was received from {s} on channel {d}.", .{
// packet.*.dataLength,
// packet.*.data,
// @as([*:0]const u8, @ptrCast(peer.*.data.?)),
// channelID});
_ = peer;
_ = channelID;
const bytes: []const u8 = packet.*.data[0 .. packet.*.dataLength];
var reader = shared.bits.BitReader.init(bytes);
const msg : shared.protocol_v1.Message = try reader.deserialize(allocator, shared.protocol_v1.Message);
try on_message(allocator, msg);
}
fn on_message(allocator: std.mem.Allocator, msg: shared.protocol_v1.Message) !void {
switch (msg) {
.spawn_entity => |se| { try on_spawn_entity(allocator, se); },
.update_entity => |ue| { on_update_entity(ue); },
.despawn_entity => |de| { on_despawn_entity(allocator, de); },
}
}
fn on_spawn_entity(allocator: std.mem.Allocator, se: shared.protocol_v1.SpawnEntity) !void {
// _ = allocator; _ = se;
switch (se) {
.soldier => |s| {
const soldier = shared.entity.Soldier{
.id = s.id,
.hp = s.hp,
.pos = s.pos,
.vel = s.vel,
};
_ = try chunk.spawn(&the_chunk, allocator, shared.entity.Soldier, soldier);
},
.alien => |a| {
const alien = shared.entity.Alien{
.id = a.id,
.hp = a.hp,
.pos = a.pos,
};
_ = try chunk.spawn(&the_chunk, allocator, shared.entity.Alien, alien);
},
}
}
fn on_update_entity(ue: shared.protocol_v1.UpdateEntity) void {
switch (ue) {
.soldier => |s| {
if (chunk.findT(&the_chunk, shared.entity.Soldier, s.id)) |soldier| {
soldier.hp = s.hp;
soldier.pos = s.pos;
soldier.vel = s.vel;
}
},
.alien => |a| {
if (chunk.findT(&the_chunk, shared.entity.Alien, a.id)) |alien| {
alien.hp = a.hp;
alien.pos = a.pos;
}
},
}
}
fn on_despawn_entity(allocator: std.mem.Allocator, de: shared.protocol_v1.DespawnEntity) void {
switch (de) {
.soldier => |s| { _ = chunk.despawn(&the_chunk, allocator, s.id); },
.alien => |a| { _ = chunk.despawn(&the_chunk, allocator, a.id); },
}
}
fn connect() !void {
// const address = try std.net.Address.parseIp4("127.0.0.1", shared.protocol_v1.SERVER_PORT);
// connection = try std.net.tcpConnectToAddress(address);
// std.log.info("Connected to server", .{});
}
//fn handle_connection(connection: std.net.Server.Connection) !void {}
// test "simple test" {
// const gpa = std.testing.allocator;
// var list: std.ArrayList(i32) = .empty;
// defer list.deinit(gpa); // Try commenting this out and see if zig detects the memory leak!
// try list.append(gpa, 42);
// try std.testing.expectEqual(@as(i32, 42), list.pop());
// }
// test "fuzz example" {
// const Context = struct {
// fn testOne(context: @This(), input: []const u8) anyerror!void {
// _ = context;
// // Try passing `--fuzz` to `zig build test` and see if it manages to fail this test case!
// try std.testing.expect(!std.mem.eql(u8, "canyoufindme", input));
// }
// };
// try std.testing.fuzz(Context{}, Context.testOne, .{});
// }