trolley — abandoned shopping trolley (53 props)

Wire basket via translucent panels, galv frame, casters. Grinds: handle
bar + front rim. As found in every Brisbane park.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

manifest.json

@@ -1865,6 +1865,52 @@
    "collider": {
     "type": "none"
    }
+  },
+  {
+   "id": "trolley",
+   "src": "props/trolley.glb",
+   "category": "furniture",
+   "desc": "abandoned shopping trolley \u2014 gap bait",
+   "size": [
+    0.936,
+    1.022,
+    0.552
+   ],
+   "tris": 384,
+   "grinds": [
+    {
+     "a": [
+      -0.52,
+      -0.25
+     ],
+     "b": [
+      -0.52,
+      0.25
+     ],
+     "ya": 1.0,
+     "yb": 1.0,
+     "kind": "rail"
+    },
+    {
+     "a": [
+      0.38,
+      -0.26
+     ],
+     "b": [
+      0.38,
+      0.26
+     ],
+     "ya": 0.95,
+     "yb": 0.95,
+     "kind": "rail"
+    }
+   ],
+   "collider": {
+    "type": "box",
+    "hw": 0.52,
+    "hd": 0.3,
+    "h": 1.0
+   }
   }
  ]
 }

tools/prop_author.py

@@ -750,6 +750,48 @@ def bleachers():
     p.collider = {'type': 'box', 'hw': L / 2, 'hd': 0.75, 'h': 0.92}
     return p
 
+def trolley():
+    """Shopping trolley. Lives in every Brisbane park whether the park likes it
+    or not. Wire basket faked with translucent panels; handle bar grinds."""
+    p = Prop('trolley', 'furniture', 'abandoned shopping trolley — gap bait')
+    WIRE = Mat('trolley_wire', tint=(0.72, 0.75, 0.78, 0.45), rough=0.4,
+               metal=0.8, double=True)
+    # basket: tapered shell, small base -> wide mouth
+    b = {'x0': -0.28, 'x1': 0.30, 'z': 0.20, 'y': 0.50}
+    t = {'x0': -0.44, 'x1': 0.38, 'z': 0.26, 'y': 0.95}
+    q = lambda a, bb, c, d: quad(a, bb, c, d)
+    p.add(WIRE, q((b['x0'], b['y'], -b['z']), (b['x1'], b['y'], -b['z']),
+                  (t['x1'], t['y'], -t['z']), (t['x0'], t['y'], -t['z'])))
+    p.add(WIRE, q((b['x1'], b['y'], b['z']), (b['x0'], b['y'], b['z']),
+                  (t['x0'], t['y'], t['z']), (t['x1'], t['y'], t['z'])))
+    p.add(WIRE, q((b['x1'], b['y'], -b['z']), (b['x1'], b['y'], b['z']),
+                  (t['x1'], t['y'], t['z']), (t['x1'], t['y'], -t['z'])))
+    p.add(WIRE, q((b['x0'], b['y'], b['z']), (b['x0'], b['y'], -b['z']),
+                  (t['x0'], t['y'], -t['z']), (t['x0'], t['y'], t['z'])))
+    p.add(WIRE, box(( b['x0'] + b['x1']) / 2, b['y'], 0,
+                    b['x1'] - b['x0'], 0.015, 2 * b['z']))
+    # top rim + handle + frame
+    rim = [(t['x0'], t['y'], -t['z']), (t['x1'], t['y'], -t['z']),
+           (t['x1'], t['y'], t['z']), (t['x0'], t['y'], t['z']),
+           (t['x0'], t['y'], -t['z'])]
+    p.add(GALV, tube(rim, 0.016, seg=6))
+    p.add(GALV, tube([(-0.52, 1.0, -0.25), (-0.52, 1.0, 0.25)], 0.022, seg=8))
+    for sz in (-1, 1):
+        p.add(GALV, tube([(-0.42, 0.05, sz * 0.22), (-0.52, 0.98, sz * 0.25)],
+                         0.016, seg=6))
+        p.add(GALV, tube([(0.34, 0.05, sz * 0.22), (t['x1'], t['y'] - 0.02, sz * t['z'])],
+                         0.016, seg=6))
+        p.add(GALV, tube([(-0.42, 0.08, sz * 0.22), (0.34, 0.08, sz * 0.22)],
+                         0.014, seg=6))
+    for wx in (-0.42, 0.34):                                  # casters
+        for sz in (-1, 1):
+            p.add(STEEL, tube([(wx, 0.045, sz * 0.22 - 0.015), (wx, 0.045, sz * 0.22 + 0.015)],
+                              0.045, seg=8))
+    p.grind(-0.52, -0.25, -0.52, 0.25, 1.0, 1.0, 'rail')      # handle bar
+    p.grind(t['x1'], -t['z'], t['x1'], t['z'], t['y'], t['y'], 'rail')  # front rim
+    p.collider = {'type': 'box', 'hw': 0.52, 'hd': 0.3, 'h': 1.0}
+    return p
+
 def drain_grate():
     p = Prop('drain_grate', 'dressing', 'flush drainage grate')
     p.add(Mat('grate', tex='steel_grate', uv=0.9, rough=0.5, metal=0.6),
@@ -793,7 +835,7 @@ BUILDERS = [
                        'inclined manual pad', graf=True),
     pyramid, euro_gap, volcano, roller,
     jersey_barrier, parking_block, hydrant, pool_edge,
-    fence_chain, floodlight, bleachers, drain_grate,
+    fence_chain, floodlight, bleachers, drain_grate, trolley,
 ]
 
 def main():