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use fmt;
use sdl2;
use math;
use net;
use net::dial;
use drawing;
use drawing::{pos};
use client::paintui;
use unix::poll;
use packet_reader;
def CHUNKSIZE = 512;
def NCHUNKS = 16;
def WIN_H: i32 = 480;
def WIN_W: i32 = 640;
export fn main() void = {
// sdl init stuff
sdl2::SDL_Init(sdl2::SDL_INIT_VIDEO)!;
defer sdl2::SDL_Quit();
const win = sdl2::SDL_CreateWindow("hi", sdl2::SDL_WINDOWPOS_UNDEFINED, sdl2::SDL_WINDOWPOS_UNDEFINED, 640, 480, sdl2::SDL_WindowFlags::NONE)!;
defer sdl2::SDL_DestroyWindow(win);
const wsurf = sdl2::SDL_GetWindowSurface(win)!;
let offs: []pos = [];
for (let x = -1; x < 3; x+=1) for (let y = -1; y < 3; y+=1)
append(offs, (x*CHUNKSIZE,y*CHUNKSIZE));
let pictures: []drawing::picture = alloc([],NCHUNKS);
let picture_surfaces: []*sdl2::SDL_Surface = alloc([], NCHUNKS);
for (let i = 0z; i < NCHUNKS; i +=1){
const surf = sdl2::SDL_CreateRGBSurface(0,
CHUNKSIZE, CHUNKSIZE, 32, 0xff0000, 0xff00, 0xff, 0)!;
append(picture_surfaces, surf);
append(pictures, picture_from_surface(surf, offs[i]));
};
for (const p &.. pictures) {
drawing::clear_picture(p, 0x00ff00);
drawing::outline_picture(p);
};
// connect to server
const conn = match(dial::dial("tcp","localhost","41460")) {
case let c: net::socket => yield c;
case let err: net::error =>
fmt::fatal("couldn't connect to server:",net::strerror(err));
};
const pollfd: [1]poll::pollfd = [ poll::pollfd {
fd = conn, events=poll::event::POLLIN, revents = 0
}];
const packet_reader = packet_reader::new();
// paintui state
let pstate = paintui::state { ... };
let camera_pos: pos = (25, 50);
let quit = false;
let n = 0;
let lasttime = sdl2::SDL_GetTicks();
// in WORLD coords
let mouse_pos: pos = (0,0);
let mouse_down = false;
for (!quit) {
do_movement(&camera_pos);
// let nvis = 0;
// for (const pic &.. pictures) {
// if (is_picture_visible(camera_pos, pic)) {
// fmt::printfln(" {} {}",pic.world_pos.0, pic.world_pos.1)!;
// nvis += 1;
// };
// };
// fmt::printfln("{} visible",nvis)!;
let ev = sdl2::event { ... };
for (sdl2::SDL_PollEvent(&ev)! == 1) switch (ev.event_type) {
case sdl2::SDL_EventType::QUIT => quit = true;
case sdl2::SDL_EventType::KEYDOWN =>
const keysym = ev.key.keysym.sym;
if (keysym == sdl2::SDL_Keycode::ESCAPE) quit = true;
case sdl2::SDL_EventType::MOUSEBUTTONDOWN,
sdl2::SDL_EventType::MOUSEBUTTONUP =>
const edata = ev.button;
mouse_pos = (edata.x + camera_pos.0, edata.y + camera_pos.1);
if (edata.button == 1)
mouse_down = (edata.state == 1);
case sdl2::SDL_EventType::MOUSEMOTION =>
const edata = ev.motion;
mouse_pos = (edata.x + camera_pos.0, edata.y + camera_pos.1);
case => void;
};
match (paintui::tick(&pstate, mouse_pos, mouse_down)) {
case void => yield;
case let op: drawing::op =>
drawing::perform(pictures, op);
packet_reader::send(conn, op: packet_reader::packet_drawop)!;
};
const n = poll::poll(pollfd, poll::NONBLOCK)!;
if (n > 0) {
fmt::println("data available")!;
packet_reader::read(&packet_reader, conn)!;
for (const packet => packet_reader::next(&packet_reader)!) {
match (packet) {
case let op: packet_reader::packet_drawop =>
const opc = op as drawing::op_circle;
drawing::perform(pictures, opc);
case let packet: packet_reader::packet_sendchunk =>
fmt::println(packet.world_pos.0, packet.world_pos.1, len(packet.chunk_data))!;
assert(packet.world_pos.0 % CHUNKSIZE == 0
&& packet.world_pos.1 % CHUNKSIZE == 0, "bad chunk world pos");
const pic = find_picture_for_chunkdata(camera_pos, packet.world_pos, pictures);
pic.world_pos = packet.world_pos;
pic.d[..len(packet.chunk_data)] = packet.chunk_data[..];
};
};
};
drawing::clear_picture(&picture_from_surface(wsurf,(9,9)), 0xff0000);
for (let i = 0z; i < len(pictures); i += 1) {
const psurf = picture_surfaces[i];
const pic = &pictures[i];
render_picture(pic, psurf, wsurf, camera_pos);
};
sdl2::SDL_UpdateWindowSurface(win)!;
n += 1;
sdl2::SDL_Delay(1000/60);
};
};
fn picture_from_surface(surf: *sdl2::SDL_Surface, world_pos: pos) drawing::picture = drawing::picture {
w = surf.w: size,
h = surf.h: size,
d = (surf.pixels as *opaque: *[*]u32),
world_pos = world_pos,
};
fn render_picture(pic: *drawing::picture, surf: *sdl2::SDL_Surface, winsurf: *sdl2::SDL_Surface, camera_pos: pos) void = {
sdl2::SDL_BlitSurface(surf, null, winsurf, &sdl2::SDL_Rect{
x = pic.world_pos.0 - camera_pos.0, y = pic.world_pos.1 - camera_pos.1, ...
})!;
};
def SPEED = 17;
def DIAG_SPEED = 12; // thereabouts
fn do_movement(pos: *pos) void = {
const kb = sdl2::SDL_GetKeyboardState();
let dx = 0;
let dy = 0;
if (kb[sdl2::SDL_Scancode::W]) dy -= 1;
if (kb[sdl2::SDL_Scancode::S]) dy += 1;
if (kb[sdl2::SDL_Scancode::A]) dx -= 1;
if (kb[sdl2::SDL_Scancode::D]) dx += 1;
let speed = SPEED;
if (dx != 0 && dy != 0) speed = DIAG_SPEED;
pos.0 += dx * speed;
pos.1 += dy * speed;
};
fn is_picture_visible(camera_pos: pos, pic: *drawing::picture) bool = {
const s_min: pos = camera_pos;
const s_max: pos = (camera_pos.0 + WIN_W, camera_pos.1 + WIN_H);
const p_min: pos = pic.world_pos;
const p_max: pos = (pic.world_pos.0 + pic.w: i32, pic.world_pos.1 + pic.h: i32);
return (s_min.0 <= p_max.0 && s_max.0 >= p_min.0)
&& (s_min.1 <= p_max.1 && s_max.1 >= p_min.1);
};
fn find_picture_for_chunkdata(camera_pos: pos, world_pos: pos, pictures: []drawing::picture) *drawing::picture = {
// if we have one with that exact worldpos, return that
// otherwise find one that isn't visible
let invisible: nullable *drawing::picture = null;
for (const pic &.. pictures) {
if (pic.world_pos.0 == world_pos.0 && pic.world_pos.1 == world_pos.1) {
return pic;
};
if (invisible == null && !is_picture_visible(camera_pos, pic)) invisible = pic;
};
match (invisible) {
case null => abort("couldn't find offscreen picture???");
case let p: *drawing::picture => return p;
};
};
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