Resting faces steeper than the angle of repose topple: blown sand towers collapse (t93)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-28 23:07:30 -04:00
parent 84dd8b8d0a
commit bd22e453ca
10 changed files with 264 additions and 24 deletions
@@ -0,0 +1,51 @@
+"""Straight-up bagged sand nozzle in the real pixel frame loop."""
+import pathlib
+import sys
+sys.path.insert(0, str(pathlib.Path(__file__).resolve().parents[1] / 'tools'))
+from use_venv import ensure_playwright; ensure_playwright()
+from browser import launch, consume_gpu_option, capabilities
+consume_gpu_option()
+ROOT = pathlib.Path(__file__).resolve().parents[1]
+with launch(viewport={'width': 1440, 'height': 900}) as (_, page, url):
+    errors = []
+    page.on('pageerror', lambda e: errors.append(str(e)))
+    page.goto(url)
+    print('GPU', capabilities(page), flush=True)
+    page.evaluate("""() => {
+      const enter=enterGame;enterGame=()=>{enter();GAME.paused=true;};
+      SET.workerCap=2;SET.maxSteps=1;SET.fog=false;SET.lighting='off';SET.cameraLead=false;SET.autosave=0;
+      startNewWorld(7,768,600);
+    }""")
+    page.wait_for_function('GAME.running', timeout=60000)
+    for file in ('pile-cut', 'pile-blow'):
+        page.evaluate((ROOT / f'test/{file}.js').read_text())
+    page.evaluate("""() => {
+      pileBlowSetup();renderDirty.fill(1);GPU.world=null;SM.surf=-1;
+      document.querySelectorAll('.card,.toast').forEach(e=>e.remove());
+      $('hud').hidden=true;GAME.hidePreviews=true;SET.zoom=3;resizeRender();
+      snapCamera();updateCamera=()=>{};
+    }""")
+    page.evaluate('startThreads()')
+    page.evaluate("""() => {
+      simPool.force=true;window.blowTicks=0;window.blowEnd=0;
+      const tool=toolTick;toolTick=()=>{tool();if(blowTicks<1200){pileBlowStroke();blowTicks++;}};
+      const advance=simTick;simTick=()=>{
+        advance();
+        if(blowTicks===1200 && !blowEnd){blowEnd=tick;window.blowBefore=pileBlowProfile();GAME.paused=true;}
+        else if(blowEnd && tick===blowEnd+480){window.blowAfter=pileBlowProfile();GAME.paused=true;}
+      };
+      GAME.paused=false;
+    }""")
+    page.wait_for_function('window.blowBefore', timeout=120000)
+    print('before', page.evaluate('blowBefore'), flush=True)
+    page.screenshot(path=str(ROOT / 'shots/t93c-before.png'))
+    page.evaluate('() => {bot.x=700;bot.y=100;GAME.paused=false;}')
+    page.wait_for_function('window.blowAfter', timeout=60000)
+    result=page.evaluate('({before:blowBefore,after:blowAfter,helpers:simPool.activeMax})')
+    page.screenshot(path=str(ROOT / 'shots/t93c-after.png'))
+    print('result', result, flush=True)
+    assert result['before']['grains']>15000 and result['before']['height']>100, result
+    assert result['after']['cliff']<=2 and result['helpers']>0, result
+    assert sum(result['after'][k] for k in ('grains','flying','bag'))==40000, result
+    assert not errors, errors
+    print('PASS upward nozzle pile collapses within 480 real-loop ticks with active helpers')