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package ch.epfl.maze.main;
import ch.epfl.maze.simulation.Simulation;
import ch.epfl.maze.util.SimulationGenerator;
import ch.epfl.maze.util.Statistics;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* Mini-project main program that will run the simulations multiple times and
* show statistics on the console.
*
* @author EPFL
*/
public class Console {
/**
* Number of simulations launched.
*/
public static final int NUMBER_OF_SIMULATIONS = 1000;
public static final String DEFAULT_SIM = "maze";
public static void main(String[] args) {
String simName = args.length > 0 ? args[0] : DEFAULT_SIM;
Simulation simulation = SimulationGenerator.getSimulation(simName);
System.out.print("Launching " + NUMBER_OF_SIMULATIONS + " simulations...");
Map<String, List<Integer>> results =
Statistics.computeStatistics(simulation, NUMBER_OF_SIMULATIONS);
System.out.println(" done !");
printStats(results);
}
/**
* Pretty-prints the statistics computed in the parameters.
*
* @param results Statistics of arrival times for every animals/preys
*/
public static void printStats(Map<String, List<Integer>> results) {
// computes statistics
for (Map.Entry<String, List<Integer>> entry : results.entrySet()) {
String name = entry.getKey();
List<Integer> list = entry.getValue();
if (list.isEmpty()) {
continue;
}
Collections.sort(list);
String max, min, std, mean, median, total;
// handles infinite values
if (Statistics.total(list) == Integer.MAX_VALUE) {
total = "Infinite";
mean = "Infinite";
std = "Infinite";
max = "Infinite";
} else {
total = Integer.toString(Statistics.total(list));
mean = Integer.toString(Statistics.mean(list));
std = Double.toString(Statistics.std(list));
max = Integer.toString(list.get(list.size() - 1));
}
// min and median are special
min = (list.get(0) == Integer.MAX_VALUE) ?
"Infinite" : Integer.toString(list.get(0));
median = (list.get(list.size() / 2) == Integer.MAX_VALUE) ?
"Infinite" : Integer.toString(list.get(list.size() / 2));
System.out.println("\n\n========== " + name + " ==========\n");
System.out.println(" * total number of steps : " + total);
System.out.println(" * average steps : " + mean);
System.out.println(" * median steps : " + median);
System.out.println(" * standard deviation : " + std);
System.out.println(" * minimum steps : " + min);
System.out.println(" * maximum steps : " + max);
System.out.println("\nDistribution :");
Statistics.printDistribution(list);
}
}
}
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