leif/lexys-labyrinth
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Keep the editor's level browser dialog around, and render previews faster

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It's kind of annoying to watch the previews flicker into existence anew
every time you open the dialog, if you're working on several levels at a
time.
This commit is contained in:
Eevee (Evelyn Woods) 2021-01-20 11:59:29 -07:00
parent 1e38ccdc30
commit ff33c42cc2
1 changed files with 39 additions and 17 deletions
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56
js/main-editor.js
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@ -392,31 +392,45 @@ class EditorLevelBrowserOverlay extends DialogOverlay {
schedule_level_render() {
if (this._handle)
return;
this._handle = setTimeout(() => { this.render_level() }, 100);
this._handle = setTimeout(() => { this.render_level() }, 50);
}
render_level() {
this._handle = null;
if (this.awaiting_renders.length === 0)
return;
let index = this.awaiting_renders.shift();
let element = this.list.childNodes[index];
let stored_level = this.conductor.stored_game.load_level(index);
this.renderer.set_level(stored_level);
this.renderer.set_viewport_size(stored_level.size_x, stored_level.size_y);
this.renderer.draw_static_region(0, 0, stored_level.size_x, stored_level.size_y);
let canvas = mk('canvas', {
width: stored_level.size_x * this.renderer.tileset.size_x / 4,
height: stored_level.size_y * this.renderer.tileset.size_y / 4,
});
canvas.getContext('2d').drawImage(this.renderer.canvas, 0, 0, canvas.width, canvas.height);
element.querySelector('.-preview').append(canvas);
element.classList.add('--rendered');
let t0 = performance.now();
while (true) {
if (this.awaiting_renders.length === 0)
return;
let index = this.awaiting_renders.shift();
let element = this.list.childNodes[index];
// FIXME levels may have been renumbered since this was queued, whoops
let stored_level = this.conductor.stored_game.load_level(index);
this.renderer.set_level(stored_level);
this.renderer.set_viewport_size(stored_level.size_x, stored_level.size_y);
this.renderer.draw_static_region(0, 0, stored_level.size_x, stored_level.size_y);
let canvas = mk('canvas', {
width: stored_level.size_x * this.renderer.tileset.size_x / 4,
height: stored_level.size_y * this.renderer.tileset.size_y / 4,
});
canvas.getContext('2d').drawImage(this.renderer.canvas, 0, 0, canvas.width, canvas.height);
element.querySelector('.-preview').append(canvas);
element.classList.add('--rendered');
if (performance.now() - t0 > 10)
break;
}
this.schedule_level_render();
}
expire(index) {
let li = this.list.childNodes[index];
li.classList.remove('--rendered');
li.querySelector('.-preview').textContent = '';
}
_after_insert_level(stored_level, index) {
this.list.insertBefore(
this._make_list_item(index, this.conductor.stored_game.level_metadata[index]),
@ -3273,11 +3287,16 @@ export class Editor extends PrimaryView {
this._save_level_to_storage(this.stored_level);
save_json_to_storage(pack_key, pack_stash);
this._save_pack_to_stash(stored_pack);
if (this._level_browser) {
this._level_browser.expire(this.conductor.level_index);
}
}
// Level loading
load_game(stored_game) {
this._level_browser = null;
}
load_level(stored_level) {
@ -3333,7 +3352,10 @@ export class Editor extends PrimaryView {
}
open_level_browser() {
new EditorLevelBrowserOverlay(this.conductor).open();
if (! this._level_browser) {
this._level_browser = new EditorLevelBrowserOverlay(this.conductor);
}
this._level_browser.open();
}
select_tool(tool) {