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fix: SimulationAgent.inventory reads only from agent's own position #4239

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Merged
daveey merged 1 commit into from
Dec 8, 2025
Merged

fix: SimulationAgent.inventory reads only from agent's own position #4239

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7 changes: 7 additions & 0 deletions packages/mettagrid/python/src/mettagrid/simulator/simulator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -377,7 +377,14 @@ def inventory(self) -> Dict[str, int]:
inv = {}
obs = self.observation

# Agent's own tokens are at the center of the observation window
c_sim = self._sim._c_sim
center = (c_sim.obs_height // 2, c_sim.obs_width // 2)

for token in obs.tokens:
# Only look at tokens at the agent's own position (center)
if token.location != center:
continue
# Check if this is an inventory feature
if token.feature.name.startswith("inv:"):
# Extract resource name from "inv:resource_name" format
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