Minor fix (Obstruction at start position).

RuedigerLunde · RuedigerLunde · commit bea81d26f54a · 2022-05-16T15:32:18.000+02:00
diff --git a/aima-core/src/main/java/aima/core/environment/vacuum/MazeVacuumEnvironment.java b/aima-core/src/main/java/aima/core/environment/vacuum/MazeVacuumEnvironment.java
@@ -46,8 +46,15 @@ public MazeVacuumEnvironment(int xDim, int yDim, double dirtProbability, double
 		}
 	}
 
-	public void setObstacle(String location, boolean state) {
-		envState.setLocationState(location, state ? null : LocationState.Clean);
+	@Override
+	public void addAgent(Agent<? super VacuumPercept, ? extends Action> agent) {
+		super.addAgent(agent);
+		if (envState.getLocationState(getAgentLocation(agent)) == null)
+			envState.setLocationState(getAgentLocation(agent), LocationState.Clean);
+	}
+
+	public void setObstacle(String location, boolean b) {
+		envState.setLocationState(location, b ? null : LocationState.Clean);
 	}
 
 	public boolean containsObstacle(String location) {

Original file line number	Diff line number	Diff line change
`@@ -46,8 +46,15 @@ public MazeVacuumEnvironment(int xDim, int yDim, double dirtProbability, double`
`46`	`46`	`}`
`47`	`47`	`}`
`48`	`48`
`49`		`- public void setObstacle(String location, boolean state) {`
`50`		`- envState.setLocationState(location, state ? null : LocationState.Clean);`
	`49`	`+ @Override`
	`50`	`+ public void addAgent(Agent<? super VacuumPercept, ? extends Action> agent) {`
	`51`	`+ super.addAgent(agent);`
	`52`	`+ if (envState.getLocationState(getAgentLocation(agent)) == null)`
	`53`	`+ envState.setLocationState(getAgentLocation(agent), LocationState.Clean);`
	`54`	`+ }`
	`55`	`+`
	`56`	`+ public void setObstacle(String location, boolean b) {`
	`57`	`+ envState.setLocationState(location, b ? null : LocationState.Clean);`
`51`	`58`	`}`
`52`	`59`
`53`	`60`	`public boolean containsObstacle(String location) {`