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core 2025-03-07 23:34:29 -05:00
parent a4b72133ec
commit b6bf4cdcd8
9 changed files with 355 additions and 225 deletions
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2
Cargo.lock generated
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@ -5111,9 +5111,9 @@ dependencies = [
"egui", "egui",
"egui_glow", "egui_glow",
"ehttp", "ehttp",
"glow",
"image", "image",
"poll-promise", "poll-promise",
"serde",
"tracing", "tracing",
"tracing-subscriber", "tracing-subscriber",
"tracing-web", "tracing-web",

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4
crates/client/Cargo.toml
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@ -7,9 +7,9 @@ edition = "2021"
tracing = "0.1" tracing = "0.1"
tracing-subscriber = "0.3" tracing-subscriber = "0.3"
eframe = { version = "0.31" } eframe = { version = "0.31" }
egui = "0.31" glow = "*"
egui_glow = "0.31" egui_glow = "0.31"
serde = { version = "1", features = ["derive"] } egui = "0.31"
poll-promise = "0.3" poll-promise = "0.3"
ehttp = "0.5" ehttp = "0.5"
image = "0.25" image = "0.25"

6
crates/client/dist/index.html vendored
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@ -94,7 +94,7 @@
} }
} }
</style> </style>
<link rel="modulepreload" href="/wxbox-client-5dd7964ac85d800f.js" crossorigin="anonymous" integrity="sha384-THKbMzgvXjd63RE7bglp3RwijS0ny12ZwnqzI9Pidk1fDApKpehVPRwasSPwF4GV"><link rel="preload" href="/wxbox-client-5dd7964ac85d800f_bg.wasm" crossorigin="anonymous" integrity="sha384-ULmySDdbjrxZ77rmXQ2ZPFV0NVjvw9RhIuKxBP9ftAQbL4eIL9qoaW6phgsM9lMR" as="fetch" type="application/wasm"></head> <link rel="modulepreload" href="/wxbox-client-416c2e642fbec6fa.js" crossorigin="anonymous" integrity="sha384-A3JOZ15bmE6xydSHdMZU5eIbrIJ8XY/DNJ5CtuoUisRN+ij0kXCl7eikCAcPsitl"><link rel="preload" href="/wxbox-client-416c2e642fbec6fa_bg.wasm" crossorigin="anonymous" integrity="sha384-ghOMvgGvT2pknRdTnVTjp4/1WJZM+FFxDmgzsy58m+J4sq4DnU1OY0c1JpIKbjhb" as="fetch" type="application/wasm"></head>
<body> <body>
<!-- The WASM code will resize the canvas dynamically --> <!-- The WASM code will resize the canvas dynamically -->
@ -111,8 +111,8 @@
<script type="module"> <script type="module">
import init, * as bindings from '/wxbox-client-5dd7964ac85d800f.js'; import init, * as bindings from '/wxbox-client-416c2e642fbec6fa.js';
const wasm = await init({ module_or_path: '/wxbox-client-5dd7964ac85d800f_bg.wasm' }); const wasm = await init({ module_or_path: '/wxbox-client-416c2e642fbec6fa_bg.wasm' });
window.wasmBindings = bindings; window.wasmBindings = bindings;

20
crates/client/dist/wxbox-client-5dd7964ac85d800f.js → crates/client/dist/wxbox-client-416c2e642fbec6fa.js vendored
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@ -551,12 +551,6 @@ function __wbg_get_imports() {
imports.wbg.__wbg_deleteTexture_eaf729f97b59aaf4 = function(arg0, arg1) { imports.wbg.__wbg_deleteTexture_eaf729f97b59aaf4 = function(arg0, arg1) {
arg0.deleteTexture(arg1); arg0.deleteTexture(arg1);
}; };
imports.wbg.__wbg_deleteVertexArrayOES_0de32bd8adddeecb = function(arg0, arg1) {
arg0.deleteVertexArrayOES(arg1);
};
imports.wbg.__wbg_deleteVertexArray_cff2c6ab55f2c8b6 = function(arg0, arg1) {
arg0.deleteVertexArray(arg1);
};
imports.wbg.__wbg_deltaMode_b2e9bb0dca5cf196 = function(arg0) { imports.wbg.__wbg_deltaMode_b2e9bb0dca5cf196 = function(arg0) {
const ret = arg0.deltaMode; const ret = arg0.deltaMode;
return ret; return ret;
@ -1529,12 +1523,6 @@ function __wbg_get_imports() {
getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true); getDataViewMemory0().setInt32(arg0 + 4 * 1, len1, true);
getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true); getDataViewMemory0().setInt32(arg0 + 4 * 0, ptr1, true);
}; };
imports.wbg.__wbg_uniform1f_355e1f6a61fccb63 = function(arg0, arg1, arg2) {
arg0.uniform1f(arg1, arg2);
};
imports.wbg.__wbg_uniform1f_a8765c5b2bedff99 = function(arg0, arg1, arg2) {
arg0.uniform1f(arg1, arg2);
};
imports.wbg.__wbg_uniform1i_33a6ced29e8c7297 = function(arg0, arg1, arg2) { imports.wbg.__wbg_uniform1i_33a6ced29e8c7297 = function(arg0, arg1, arg2) {
arg0.uniform1i(arg1, arg2); arg0.uniform1i(arg1, arg2);
}; };
@ -1626,19 +1614,19 @@ function __wbg_get_imports() {
const ret = false; const ret = false;
return ret; return ret;
}; };
imports.wbg.__wbindgen_closure_wrapper3066 = function(arg0, arg1, arg2) { imports.wbg.__wbindgen_closure_wrapper3076 = function(arg0, arg1, arg2) {
const ret = makeMutClosure(arg0, arg1, 783, __wbg_adapter_32); const ret = makeMutClosure(arg0, arg1, 783, __wbg_adapter_32);
return ret; return ret;
}; };
imports.wbg.__wbindgen_closure_wrapper3068 = function(arg0, arg1, arg2) { imports.wbg.__wbindgen_closure_wrapper3078 = function(arg0, arg1, arg2) {
const ret = makeMutClosure(arg0, arg1, 783, __wbg_adapter_35); const ret = makeMutClosure(arg0, arg1, 783, __wbg_adapter_35);
return ret; return ret;
}; };
imports.wbg.__wbindgen_closure_wrapper3070 = function(arg0, arg1, arg2) { imports.wbg.__wbindgen_closure_wrapper3080 = function(arg0, arg1, arg2) {
const ret = makeMutClosure(arg0, arg1, 783, __wbg_adapter_35); const ret = makeMutClosure(arg0, arg1, 783, __wbg_adapter_35);
return ret; return ret;
}; };
imports.wbg.__wbindgen_closure_wrapper5606 = function(arg0, arg1, arg2) { imports.wbg.__wbindgen_closure_wrapper5619 = function(arg0, arg1, arg2) {
const ret = makeMutClosure(arg0, arg1, 1467, __wbg_adapter_40); const ret = makeMutClosure(arg0, arg1, 1467, __wbg_adapter_40);
return ret; return ret;
}; };

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crates/client/dist/wxbox-client-5dd7964ac85d800f_bg.wasm → crates/client/dist/wxbox-client-416c2e642fbec6fa_bg.wasm vendored
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61
crates/client/src/app.rs
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@ -2,13 +2,12 @@ use std::sync::{Arc, Mutex};
use eframe::{Frame, Storage}; use eframe::{Frame, Storage};
use egui::{Context, Event, MouseWheelUnit, Sense, Vec2}; use egui::{Context, Event, MouseWheelUnit, Sense, Vec2};
use tracing::debug; use tracing::debug;
use crate::map::Map; use crate::map::{Map};
use crate::map::osm::OSMBaselayer; use crate::map::osm::OSMBaselayer;
use crate::map::tiles::{LayerManager, LayerSource}; use crate::map::tiles::{LayerManager, LayerSource};
pub struct App { pub struct App {
map: Arc<Mutex<Map>>, map: Arc<Mutex<Map>>
angle: f32
} }
impl App { impl App {
@ -16,10 +15,8 @@ impl App {
let mut layer_manager = LayerManager::default(); let mut layer_manager = LayerManager::default();
layer_manager.layers.insert(0, OSMBaselayer::SOURCE_ID); layer_manager.layers.insert(0, OSMBaselayer::SOURCE_ID);
let gl = cc.gl.as_ref().unwrap();
Self { Self {
map: Arc::new(Mutex::new(Map::new(layer_manager, gl).unwrap())), map: Arc::new(Mutex::new(Map::new(layer_manager, cc).unwrap())),
angle: 0.0
} }
} }
} }
@ -34,58 +31,16 @@ impl eframe::App for App {
egui::CentralPanel::default() egui::CentralPanel::default()
.show(ctx, |ui| { .show(ctx, |ui| {
let (rect, response) = ui.allocate_exact_size(
ui.available_size(),
Sense::all()
);
let mut deltas = [0.0, 0.0, 0.0];
deltas[0] = response.drag_motion().x;
deltas[1] = response.drag_motion().y;
if ui.rect_contains_pointer(rect) {
ctx.input(|i| {
for event in &i.events {
match event {
Event::MouseWheel { unit, delta, .. } => {
deltas[2] = match unit {
// TODO: scaling of this
MouseWheelUnit::Point => { delta.y },
MouseWheelUnit::Line => { delta.y },
MouseWheelUnit::Page => { delta.y },
}
},
_ => {}
}
}
})
}
debug!("{:?}", deltas);
self.angle += response.drag_motion().x * 0.01;
let angle = self.angle;
let map = self.map.clone();
{ {
map.lock().unwrap().update_view_data(&ctx); let map = self.map.clone();
map.lock().unwrap().custom_painting(&ctx, ui);
} }
let cb = egui_glow::CallbackFn::new(move |_info, painter| {
map.lock().unwrap().paint(painter.gl(), angle);
});
let callback = egui::PaintCallback {
rect,
callback: Arc::new(cb)
};
ui.painter().add(callback);
}); });
} }
fn on_exit(&mut self, gl: Option<&eframe::glow::Context>) {
fn on_exit(&mut self, gl: Option<&glow::Context>) {
if let Some(gl) = gl { if let Some(gl) = gl {
self.map.lock().unwrap().destroy(gl); self.map.lock().unwrap().render.lock().unwrap().destroy(gl);
} }
} }
} }

334
crates/client/src/map.rs
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@ -1,176 +1,210 @@
pub mod tiles; pub mod tiles;
pub mod osm; pub mod osm;
mod render;
use std::io::Cursor; use std::io::Cursor;
use eframe::glow; use std::num::{NonZeroU16, NonZeroU64};
use std::sync::{Arc, Mutex};
use egui::{Event, MouseWheelUnit, Rect, Sense, Ui};
use image::{DynamicImage, ImageReader}; use image::{DynamicImage, ImageReader};
use poll_promise::Promise; use poll_promise::Promise;
use tracing::warn; use tracing::{debug, warn};
use crate::map::osm::OSMBaselayer; use crate::map::osm::OSMBaselayer;
use crate::map::render::MapRender;
use crate::map::tiles::{LayerManager, LayerSource, Tile}; use crate::map::tiles::{LayerManager, LayerSource, Tile};
pub struct Map { pub struct Map {
pub layer_manager: LayerManager, pub layer_manager: LayerManager,
program: glow::Program, pub lat: f64,
vertex_array: glow::VertexArray pub long: f64,
pub zoom: f64,
pub render: Arc<Mutex<MapRender>>
} }
#[allow(unsafe_code)] // we need unsafe code to use glow
impl Map { impl Map {
pub fn new(layer_manager: LayerManager, gl: &glow::Context) -> Option<Self> { pub fn new<'a>(layer_manager: LayerManager, cc: &'a eframe::CreationContext<'a>) -> Option<Self> {
use glow::HasContext as _; let gl = cc.gl.as_ref().unwrap();
Some(Self {
let shader_version = egui_glow::ShaderVersion::get(gl); layer_manager: layer_manager,
lat: 35.227085,
unsafe { long: -80.843124,
let program = gl.create_program().expect("Cannot create program"); zoom: 12.0,
render: Arc::new(Mutex::new(MapRender::new(gl)?))
if !shader_version.is_new_shader_interface() { })
warn!( }
"Custom 3D painting hasn't been ported to {:?}", pub fn process_input(&mut self, ctx: &egui::Context, ui: &mut Ui, rect: Rect, response: egui::Response) {
shader_version let xy_delta = response.drag_motion();
); let z_delta = if ui.rect_contains_pointer(rect) {
return None; ctx.input(|i| {
} let mut yd_sum = 0.0;
for event in &i.events {
let (vertex_shader_source, fragment_shader_source) = ( yd_sum += match event {
r#" Event::MouseWheel { unit, delta, .. } => {
const vec2 verts[6] = vec2[6]( match unit {
vec2(-1.0, 1.0), // TODO: scaling of this
vec2(1.0, 1.0), MouseWheelUnit::Point => { delta.y },
vec2(-1.0, -1.0), MouseWheelUnit::Line => { delta.y },
MouseWheelUnit::Page => { delta.y },
vec2(-1.0, -1.0), }
vec2(1.0, 1.0), },
vec2(1.0, -1.0) _ => 0.0
);
const vec4 colors[6] = vec4[6](
vec4(1.0, 0.0, 0.0, 1.0),
vec4(0.0, 1.0, 0.0, 1.0),
vec4(0.0, 0.0, 1.0, 1.0),
vec4(1.0, 0.0, 1.0, 1.0),
vec4(1.0, 0.0, 0.0, 1.0),
vec4(0.0, 1.0, 0.0, 1.0)
);
out vec4 v_color;
uniform float u_angle;
void main() {
v_color = colors[gl_VertexID];
gl_Position = vec4(verts[gl_VertexID], 0.0, 1.0);
} }
"#, }
r#" yd_sum
precision mediump float;
in vec4 v_color;
out vec4 out_color;
void main() {
out_color = v_color;
}
"#,
);
let shader_sources = [
(glow::VERTEX_SHADER, vertex_shader_source),
(glow::FRAGMENT_SHADER, fragment_shader_source),
];
let shaders: Vec<_> = shader_sources
.iter()
.map(|(shader_type, shader_source)| {
let shader = gl
.create_shader(*shader_type)
.expect("Cannot create shader");
gl.shader_source(
shader,
&format!(
"{}\n{}",
shader_version.version_declaration(),
shader_source
),
);
gl.compile_shader(shader);
assert!(
gl.get_shader_compile_status(shader),
"Failed to compile custom_3d_glow {shader_type}: {}",
gl.get_shader_info_log(shader)
);
gl.attach_shader(program, shader);
shader
})
.collect();
gl.link_program(program);
assert!(
gl.get_program_link_status(program),
"{}",
gl.get_program_info_log(program)
);
for shader in shaders {
gl.detach_shader(program, shader);
gl.delete_shader(shader);
}
let vertex_array = gl
.create_vertex_array()
.expect("Cannot create vertex array");
Some(Self {
program,
vertex_array,
layer_manager
}) })
} } else { 0.0 };
self.lat += xy_delta.y as f64 * 0.001;
self.long += xy_delta.x as f64 * 0.001;
self.zoom += z_delta as f64 * 0.01;
if self.zoom < 3.0 { self.zoom = 3.0 };
if self.zoom > 19.0 { self.zoom = 19.0 };
if self.long < -180.0 { self.long = -180.0 };
if self.long > 180.0 { self.lat = 180.0 };
if self.lat < -85.051129 { self.lat = -85.051129 };
if self.lat > 85.051129 { self.lat = 85.051129 };
} }
pub fn destroy(&self, gl: &glow::Context) { fn load_tiles(&mut self, ctx: &egui::Context, viewport_width: usize, viewport_height: usize) -> Tileset {
use glow::HasContext as _; // lat, long is top left
unsafe { // tiles are rendered at 256x256. how many can we fit?
gl.delete_program(self.program); let tiles_x = viewport_width / 256;
gl.delete_vertex_array(self.vertex_array); let tiles_y = viewport_height / 256;
}
}
pub fn update_view_data(&mut self, ctx: &egui::Context) { let mut tiles = vec![];
// test: download 0/0/0 if not already there
let tile = self.layer_manager.tiles.entry((0, 0, 0, OSMBaselayer::SOURCE_ID))
.or_insert_with(|| { // determine start/end tiles
let (sender, promise) = Promise::new(); let x = self.long.to_radians();
let request = ehttp::Request::get("https://tile.openstreetmap.org/0/0/0.png"); let y = self.lat.to_radians().tan().asinh();
let ctx = ctx.clone();
ehttp::fetch(request, move | response | { let x = (1.0 + x/std::f64::consts::PI) / 2.0;
sender.send(match response { let y= (1.0 - y/std::f64::consts::PI) / 2.0;
Ok(r) => match ImageReader::new(Cursor::new(r.bytes)).with_guessed_format() {
Ok(img) => match img.decode() { let z_clamped = self.zoom.floor();
Ok(img) => { let tiles_across = 2usize.pow(z_clamped as u32);
ctx.request_repaint(); // wake up the ui
Ok(img) let x_coordinate = x * tiles_across as f64;
let y_coordinate = y * tiles_across as f64;
let x_tile_frac = x_coordinate.fract() * 256.0;
let y_tile_frac = y_coordinate.fract() * 256.0;
let tilex = x_coordinate.floor() as usize;
let tiley = y_coordinate.floor() as usize;
let xrange = tilex..(tilex + tiles_x);
let yrange = tiley..(tiley + tiles_y);
// for each tile, determine pixel coordinates, then offset by the tile fractionals
for x in 0..tiles_x {
let tile_x = tilex + x;
for y in 0..tiles_y {
let tile_y = tiley + y;
let start_pixel_x = x as isize * 256 - x_tile_frac as isize;
let start_pixel_y = y as isize * 256 - y_tile_frac as isize;
let end_pixel_x = start_pixel_x + 256 - x_tile_frac as isize;
let end_pixel_y = start_pixel_y + 256 -y_tile_frac as isize;
let startx_zerotoone = start_pixel_x as f64 / viewport_width as f64;
let starty_zerotoone = start_pixel_y as f64 / viewport_height as f64;
let endx_zerotoone = end_pixel_x as f64 / viewport_width as f64;
let endy_zerotoone = end_pixel_y as f64 / viewport_height as f64;
let startx_opengl = startx_zerotoone * 2.0 - 1.0;
let starty_opengl = starty_zerotoone * 2.0 - 1.0;
let endx_opengl = endx_zerotoone * 2.0 - 1.0;
let endy_opengl = endy_zerotoone * 2.0 - 1.0;
// download the tile
let tile = self.layer_manager.tiles.entry((z_clamped as usize, tile_x, tile_y, OSMBaselayer::SOURCE_ID))
.or_insert_with(|| {
debug!("fetching {}/{}/{}", z_clamped, tile_x, tile_y);
let (sender, promise) = Promise::new();
let request = ehttp::Request::get(format!("https://tile.openstreetmap.org/{}/{tile_x}/{tile_y}.png", z_clamped as usize));
let ctx = ctx.clone();
ehttp::fetch(request, move | response | {
sender.send(match response {
Ok(r) => match ImageReader::new(Cursor::new(r.bytes)).with_guessed_format() {
Ok(img) => match img.decode() {
Ok(img) => {
ctx.request_repaint(); // wake up the ui
Ok(img)
},
Err(e) => Err(e.to_string()),
},
Err(e) => Err(e.to_string()),
}, },
Err(e) => Err(e.to_string()), Err(e) => Err(e.to_string()),
}, });
Err(e) => Err(e.to_string()), });
}, Tile {
Err(e) => Err(e.to_string()), promise
}
}); });
});
Tile {
promise
}
});
}
pub fn paint(&self, gl: &glow::Context, angle: f32) { tiles.push(TilesetTile {
use glow::HasContext as _; sp_x: start_pixel_x as f32,
unsafe { sp_xclip: startx_opengl as f32,
gl.use_program(Some(self.program)); sp_y: start_pixel_y as f32,
gl.uniform_1_f32( sp_yclip: starty_opengl as f32,
gl.get_uniform_location(self.program, "u_angle").as_ref(), ep_x: end_pixel_x as f32,
angle, ep_xclip: endy_opengl as f32,
); ep_y: end_pixel_y as f32,
gl.bind_vertex_array(Some(self.vertex_array)); ep_yclip: endy_opengl as f32,
gl.draw_arrays(glow::TRIANGLES, 0, 6); tile: match tile.promise.ready() {
None => None,
Some(r) => match r {
Ok(i) => Some(i.clone()),
Err(_) => None
}
},
});
}
}
Tileset {
tiles: Arc::new(Mutex::new(tiles)),
} }
} }
}
pub fn custom_painting(&mut self, ctx: &egui::Context, ui: &mut egui::Ui) {
let (rect, response) = ui.allocate_exact_size(
ui.available_size(),
Sense::all()
);
self.process_input(ctx, ui, rect, response);
let tileset = self.load_tiles(ctx, rect.width() as usize, rect.height() as usize);
let render = self.render.clone();
let cb = egui_glow::CallbackFn::new(move |_info, painter| {
let tileset = tileset.clone();
render.lock().unwrap().paint(painter.gl(), tileset);
});
ui.painter().add(egui::PaintCallback {
rect,
callback: Arc::new(cb)
});
}
}
#[derive(Clone)]
struct Tileset {
tiles: Arc<Mutex<Vec<TilesetTile>>>
}
#[derive(Clone)]
struct TilesetTile {
sp_x: f32,
sp_xclip: f32,
sp_y: f32,
sp_yclip: f32,
ep_x: f32,
ep_xclip: f32,
ep_y: f32,
ep_yclip: f32,
tile: Option<DynamicImage>
}

153
crates/client/src/map/render.rs Normal file
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@ -0,0 +1,153 @@
use tracing::{debug, warn};
use crate::map::Tileset;
pub struct MapRender {
program: glow::Program,
vertex_buffer: glow::Buffer,
}
#[allow(unsafe_code)]
impl MapRender {
pub fn new(gl: &glow::Context) -> Option<Self> {
use glow::HasContext as _;
let shader_version = egui_glow::ShaderVersion::get(gl);
unsafe {
let program = gl.create_program().expect("Cannot create program");
if !shader_version.is_new_shader_interface() {
warn!(
"Custom 3D painting hasn't been ported to {:?}",
shader_version
);
return None;
}
let (vertex_shader_source, fragment_shader_source) = (
r#"
layout(location = 0) in vec2 pos;
const vec4 colors[6] = vec4[6](
vec4(1.0, 0.0, 0.0, 1.0),
vec4(0.0, 1.0, 0.0, 1.0),
vec4(0.0, 0.0, 1.0, 1.0),
vec4(1.0, 0.0, 0.0, 1.0),
vec4(0.0, 1.0, 0.0, 1.0),
vec4(0.0, 0.0, 1.0, 1.0)
);
out vec4 v_color;
void main() {
v_color = colors[gl_VertexID];
gl_Position = vec4(pos, 0.0, 1.0);
}
"#,
r#"
precision mediump float;
in vec4 v_color;
out vec4 out_color;
void main() {
out_color = v_color;
}
"#,
);
let shader_sources = [
(glow::VERTEX_SHADER, vertex_shader_source),
(glow::FRAGMENT_SHADER, fragment_shader_source),
];
let shaders: Vec<_> = shader_sources
.iter()
.map(|(shader_type, shader_source)| {
let shader = gl
.create_shader(*shader_type)
.expect("Cannot create shader");
gl.shader_source(
shader,
&format!(
"{}\n{}",
shader_version.version_declaration(),
shader_source
),
);
gl.compile_shader(shader);
assert!(
gl.get_shader_compile_status(shader),
"Failed to compile custom_3d_glow {shader_type} ({} {}): {}",
glow::VERTEX_SHADER,
glow::FRAGMENT_SHADER,
gl.get_shader_info_log(shader)
);
gl.attach_shader(program, shader);
shader
})
.collect();
gl.link_program(program);
assert!(
gl.get_program_link_status(program),
"{}",
gl.get_program_info_log(program)
);
for shader in shaders {
gl.detach_shader(program, shader);
gl.delete_shader(shader);
}
let vertex_buffer = gl.create_buffer().expect("Cannot create vertex buffer");
gl.vertex_attrib_pointer_f32(0, 2, glow::FLOAT, false, (2 * size_of::<f32>()) as i32, 0);
gl.enable_vertex_attrib_array(0);
Some(Self {
program,
vertex_buffer
})
}
}
pub fn destroy(&self, gl: &glow::Context) {
use glow::HasContext as _;
unsafe {
gl.delete_program(self.program);
}
}
pub fn paint(&self, gl: &glow::Context, tileset: Tileset) {
use glow::HasContext as _;
unsafe {
gl.use_program(Some(self.program));
gl.bind_buffer(glow::ARRAY_BUFFER, Some(self.vertex_buffer));
let tiles = tileset.tiles.lock().unwrap();
for tile in tiles.iter() {
let mut data = vec![];
// A-B
// | |
// C-D
// ABC
// BDC
// a: (sp_xclip, sp_yclip)
// b: (ep_xclip, sp_yclip)
// c: (sp_xclip, ep_yclip)
// d: (ep_xclip, ep_yclip)
// sp_xclip sp_yclip ep_xclip sp_yclip sp_xclip ep_yclip // ABC
// ep_xclip sp_yclip ep_xclip ep_yclip sp_xclip ep_yclip // BDC
debug!("A {:?} - B {:?}", (tile.sp_xclip, tile.sp_yclip), (tile.ep_xclip, tile.sp_yclip));
debug!("C {:?} - D {:?}", (tile.sp_xclip, tile.ep_yclip), (tile.ep_xclip, tile.ep_yclip));
for v in [tile.sp_xclip, tile.sp_yclip, tile.ep_xclip, tile.sp_yclip, tile.sp_xclip, tile.ep_yclip] {
data.extend(v.to_be_bytes());
}
for v in [tile.ep_xclip, tile.sp_yclip, tile.ep_xclip, tile.ep_yclip, tile.sp_xclip, tile.ep_yclip] {
data.extend(v.to_be_bytes());
}
gl.buffer_data_u8_slice(glow::ARRAY_BUFFER, &data, glow::DYNAMIC_DRAW);
gl.draw_arrays(glow::TRIANGLES, 0, 6);
}
}
}
}