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Horizon agentandClaude Opus 5.5
18d5d5f53b
FishingHook(Player, ...) snaps the hook's position (its feet) to the owner's eye; Horizon put it 0.125 lower. The harness cast at a stand 3 blocks away, which vanilla's randomised throw reaches only on ~80% of casts: Horizon's own run missed with the same odds and was never retried. At 2.5 blocks every throw hooks the stand and the boat on its second tick, so the harness leaves the known-flaky list. Co-Authored-By: Claude Opus 5.5 <[email protected]>
85 lines
4.4 KiB
Python
85 lines
4.4 KiB
Python
#!/usr/bin/env python3
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"""A fishing bobber against armor stands and boats on a dedicated server, against vanilla's, seen by a vanilla client.
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A vanilla dedicated server and Horizon's (`horizon-client --dedicated --nogui`) each serve a copy of one flat world
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vanilla generated first, with Alice an operator in survival holding a fishing rod. LocatorBarClient (a player made of
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vanilla's protocol code) casts the rod ahead and down at an armor stand, a marker armor stand and a boat two and a half
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blocks away (ServerboundUseItemPacket) and reels it in. `Projectile.canHitEntity` lets the bobber hook what
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`Entity.canBeHitByProjectile` accepts (`isAlive() && isPickable()`; `ArmorStand.isPickable` is false for a marker), and
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`FishingHook.retrieve` pulls the hooked entity 0.1 of the way to its owner (`pullEntity`). The entity each bobber hooks
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(`DATA_HOOKED_ENTITY`) and the position the entity ends at are compared exactly.
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"""
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import re
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import sys
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try:
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from . import test_locator_bar_parity as locator
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except ImportError:
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import test_locator_bar_parity as locator
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NAME = 'fishing-hook-entities-parity'
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# server_dir and generate_world write these server.properties.
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locator.PROPERTIES = dict(locator.PROPERTIES, gamemode='survival')
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# Alice stands at the world spawn (0.5 -60 0.5) looking along +z; the target is 2.5 blocks ahead. The throw is
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# randomised (each axis of FishingHook's velocity takes triangle(0.5, 0.0103365)): at 3.0 the bobber's second tick
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# reaches the stand's front face (z=2.75) only on the faster ~80% of throws, and a slower one starts its third tick
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# inside the box ProjectileUtil.computeMargin has grown, where AABB.clip finds no hit. At 2.5 every throw enters
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# the stand, and the boat, from outside on its second tick, so which entity is hooked no longer depends on a draw.
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TARGET = '0.5 -60 2.5'
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TARGETS = [
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('stand', 'minecraft:armor_stand', f'minecraft:armor_stand {TARGET}'),
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('marker', 'minecraft:armor_stand', f'minecraft:armor_stand {TARGET} {{Marker:1b}}'),
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('boat', 'minecraft:oak_boat', f'minecraft:oak_boat {TARGET}'),
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]
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SCRIPT = [('setup', ['hooks on', 'chat on', 'cmd Alice give @s minecraft:fishing_rod'])]
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for name, kind, summon in TARGETS:
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SCRIPT += [
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(f'{name}-summon', [f'cmd Alice kill @e[type={kind}]', f'cmd Alice summon {summon}']),
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(f'{name}-cast', ['use Alice 30']),
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(f'{name}-reel', ['use Alice 30']),
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(f'{name}-position', [f'cmd Alice data get entity @e[type={kind},limit=1] Pos']),
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]
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def shown(lines):
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"""What each bobber hooked, and the position each target ended at (a boat's to a hundredth: its own
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ground friction is not under test)."""
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out = []
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for line in lines:
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parts = line.split(' ', 3)
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if len(parts) < 3 or parts[1] == 'step=setup':
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continue
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if parts[2] == 'hooked':
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out.append(line)
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elif parts[2] == 'chat' and 'commands.data.entity.query' in line:
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position = [float(v) for v in re.findall(r'"text":"(-?[0-9.]+)","color":"gold"', line)]
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digits = 2 if parts[1].startswith('step=boat') else None
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out.append(f'{parts[0]} {parts[1]} position ' + ' '.join(str(round(v, digits) if digits else v) for v in position))
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return out
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def check(vanilla, vanilla_all):
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hooked = {line.split()[3] for line in vanilla if line.split()[2] == 'hooked'}
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if not {'minecraft:armor_stand', 'minecraft:oak_boat'} <= hooked:
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return f'vanilla hooked only {sorted(hooked)}'
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if any(line.startswith('Alice step=marker-cast hooked minecraft:armor_stand') for line in vanilla):
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return 'vanilla hooked a marker armor stand'
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positions = {line.split()[1]: line.split()[4:] for line in vanilla if line.split()[2] == 'position'}
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if positions.get('step=stand-position', [''])[-1] == '2.5' or positions.get('step=boat-position', [''])[-1] == '2.5':
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return 'vanilla did not pull the hooked entity'
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return None
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def main():
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lines = locator.one_player(NAME, SCRIPT, shown, check, 'A fishing bobber cast at an armor stand, a marker armor '
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'stand and a boat on a dedicated server: the entity it hooks and where reeling in '
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'leaves it.', step_seconds=3.0)
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print(f'fishing hook entities: {len(lines)} lines identical')
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if __name__ == '__main__':
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try:
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main()
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except AssertionError as error:
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sys.exit(f'{NAME}: {error}')
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