updated reset

src/backend/Simulator.java

@@ -588,6 +588,10 @@ public class Simulator extends Thread {
 		for (int i = 0; i < getHeight(); i++) {
 			for (int j = 0 ; j < getWidth() ; j++) {
 				setCell(i,j,0);
+				ArrayList<Agent> nearby = getNeighboringAnimals(i, j, 1);
+				for (Agent animal:nearby) {
+					agents.remove(animal);
+				}
 			}
 		}
 		this.stepCount = 0;