Spieler Bühne Jagd Spiel - Java
https://stackoverflow.com/questions/3008930
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26-09-2019 - |
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Also habe ich alle diese Klassen haben zusammen für alle die Konnektivität zwischen Predators und Prey und der Welt. Das einzige, was ich auf wirklich ratlos bin ist die run () Methode für die Predator-Klasse (wie sie jagen).
Die Theorie ist einfach. Die Räuber haben, um die Beute zu sammeln um auf seine Nord, Süd, Ost und West Seite und die Datachannel-Klasse wird das bemerken und die Beute einzufangen und von der Landkarte nehmen. Aber meine Aufgabe ist es dies, geschehen zu erhalten, indem die Predators miteinander kommunizieren zu müssen, und dann jagen und Jagd auf die Beute (die ich programmierte zufällig zu bewegen).
Hier alle Klassen. Denken Sie daran, die Methode run () für die Predator-Klasse ist, wo ich bin ratlos. Alles andere ist, wie ich es möchte. Jede Hilfe?
/**
Predator class, with no "hunting" functionality.
*/
import java.io.*;
import javax.imageio.ImageIO;
import java.util.ArrayList;
import javaclient2.*;
import javaclient2.structures.*;
public class Predator extends Thread
{
private Position2DInterface position_interface = null;
private BlobfinderInterface blob_finder = null;
private PlayerClient playerClient = null;
private DataChannel dc = null;
private String name = "";
public Predator(String name, DataChannel dc, int id, float x, float y){
this.name = name;
this.playerClient = new PlayerClient("localhost", 6665);
blob_finder = playerClient.requestInterfaceBlobfinder(id,
PlayerConstants.PLAYER_OPEN_MODE);
position_interface = playerClient.requestInterfacePosition2D(id,
PlayerConstants.PLAYER_OPEN_MODE);
playerClient.runThreaded (-1, -1);
//wait until the intefaces are ready before doing anything
while(!blob_finder.isDataReady() ||
!position_interface.isDataReady()) {
try{
sleep(100);
}catch(Exception e){
System.err.println("Error sleeping!");
e.printStackTrace();
System.exit(-1);
}
}
PlayerPose pp = new PlayerPose();
pp.setPx(x);
pp.setPy(y);
position_interface.setOdometry(pp);
this.dc = dc;
dc.registerPredator(name, position_interface);
}
/**
* @param recipient The predator to deliver the message to.
* @param msg The message.
*
* Deliver a message to another predator.
*
*/
public void sendMessage(String recipient, Object msg){
dc.sendMessage(recipient, msg);
}
/**
* @param msg The message.
*
* Deliver a message to all other predators.
*
*/
public void broadcastMessage(Object msg){
for(String predator : dc.getPredators()){
sendMessage(predator, msg);
}
}
/**
*
* Get the next message from other predators.
*
* @return The next message, or null if there are no unread messages.
*
*/
public Object getMessage(){
return dc.getMessage(this.name);
}
public void run(){
// hunt the prey!
System.out.println("There are " + dc.numLivingPreys() +
" left to capture!");
}
}
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.Vector;
import java.util.Set;
import javaclient2.*;
import javaclient2.structures.*;
/**
Object that records all of the predator locations, and kills prey when
they have been captured.
*/
public class DataChannel extends Thread{
static final float FUDGE_FACTOR = 1;
static final float CAPTURE_RANGE = 5;
private ConcurrentHashMap<String, Position2DInterface> pred_pids =
new ConcurrentHashMap<String, Position2DInterface>();
private ConcurrentHashMap<String, Position2DInterface> prey_pids =
new ConcurrentHashMap<String, Position2DInterface>();
private ConcurrentHashMap<String, Prey> preys =
new ConcurrentHashMap<String, Prey>();
private ConcurrentHashMap<String, ConcurrentLinkedQueue<Object>> msgs =
new ConcurrentHashMap<String, ConcurrentLinkedQueue<Object>>();
public void registerPredator(String name, Position2DInterface pid){
pred_pids.put(name, pid);
msgs.put(name, new ConcurrentLinkedQueue<Object>());
}
public void registerPrey(String name, Position2DInterface pid, Prey prey){
prey_pids.put(name, pid);
preys.put(name, prey);
}
public int numLivingPreys(){
return preys.size();
}
public Set<String> getPredators(){
return msgs.keySet();
}
public void sendMessage(String recipient, Object msg){
(msgs.get(recipient)).add(msg);
}
public Object getMessage(String recipient){
return (msgs.get(recipient)).poll();
}
public float getPredX(String predator){
try{
return (pred_pids.get(predator)).getX();
}catch(Exception ex) {}
return -1.0f;
}
public float getPredY(String predator){
try{
return (pred_pids.get(predator)).getY();
}catch(Exception ex) {}
return -1.0f;
}
public float getPreyX(String prey){
try{
return (prey_pids.get(prey)).getX();
}catch(Exception ex) {}
return -1.0f;
}
public float getPreyY(String prey){
try{
return (prey_pids.get(prey)).getY();
}catch(Exception ex) {}
return -1.0f;
}
public void run(){
while(true){
try{
sleep(100);
}catch(Exception e){
System.err.println("Error sleeping!");
e.printStackTrace();
System.exit(-1);
}
//get the location of each predator
Vector<Float> xpos = new Vector<Float>();
Vector<Float> ypos = new Vector<Float>();
Vector<String> pred_names= new Vector<String>();
for(String predator : pred_pids.keySet()){
if(pred_pids.get(predator) == null){
System.err.println("pred_pids does not have " + predator);
System.exit(-1);
}
xpos.add(getPredX(predator));
ypos.add(getPredY(predator));
pred_names.add(predator);
}
//for each prey, see if all of the four positions are guarded
for(String prey : prey_pids.keySet()){
boolean north = false;
boolean south = false;
boolean east = false;
boolean west = false;
if(prey_pids.get(prey) == null){
System.err.println("prey_pids does not have " + prey);
System.exit(-1);
}
float prey_x = getPreyX(prey);
float prey_y = getPreyY(prey);
for(int i=0; i < xpos.size(); i++){
//NORTH
if(Math.abs(xpos.get(i) - prey_x)<FUDGE_FACTOR &&
(ypos.get(i) - prey_y) > 0 &&
(ypos.get(i) - prey_y) < CAPTURE_RANGE){
north = true;
}
//SOUTH
if(Math.abs(xpos.get(i) - prey_x)<FUDGE_FACTOR &&
(prey_y - ypos.get(i)) > 0 &&
(prey_y - ypos.get(i)) < CAPTURE_RANGE){
south = true;
}
//EAST
if(Math.abs(ypos.get(i) - prey_y)<FUDGE_FACTOR &&
(xpos.get(i) - prey_x) > 0 &&
(xpos.get(i) - prey_x) < CAPTURE_RANGE){
east = true;
}
//WEST
if(Math.abs(ypos.get(i) - prey_y)<FUDGE_FACTOR &&
(prey_x - xpos.get(i)) > 0 &&
(prey_x - xpos.get(i)) < CAPTURE_RANGE){
west = true;
}
}
//prey is boxed in
if(north && south && east && west){
(preys.get(prey)).die();
preys.remove(prey);
prey_pids.remove(prey);
}
}
if(preys.size() == 0){
System.err.println("Congratulations: All prey are captured.");
System.exit(0);
}
}
}
}
import javaclient2.structures.*;
import javaclient2.*;
import java.util.Random;
/**
Prey class.
*/
public class Prey extends Thread{
private final int ROTATE_SECONDS = 500;
private final int MOVE_SECONDS = 3000;
private final int WAIT_SECONDS = 8000;
private final int WAIT_JITTER = 4000;
private Position2DInterface position_interface = null;
private PlayerClient playerClient = null;
private DataChannel dc = null;
private String my_name = null;
private boolean keep_going = true;
Random rand = new Random();
public Prey(String name, DataChannel dc, int id, float x, float y){
this.playerClient = new PlayerClient("localhost", 6665);
position_interface = playerClient.requestInterfacePosition2D(id,
PlayerConstants.PLAYER_OPEN_MODE);
playerClient.runThreaded (-1, -1);
this.dc = dc;
this.my_name = name;
while(!position_interface.isDataReady()) {
try{
sleep(100);
}catch(Exception e){
System.err.println("Error sleeping!");
e.printStackTrace();
System.exit(-1);
}
}
PlayerPose pp = new PlayerPose();
pp.setPx(x);
pp.setPy(y);
position_interface.setOdometry(pp);
dc.registerPrey(name, position_interface, this);
}
public float getX(){
try{
return position_interface.getX();
}catch(Exception ex) {}
return -1.0f;
}
public float getY(){
try{
return position_interface.getY();
}catch(Exception ex) {}
return -1.0f;
}
public void run(){
float old_x = getX();
float old_y = getY();
while(keep_going){
float current_x = getX();
float current_y = getY();
float x, y;
if(current_x <=0){
if(rand.nextFloat() < 0.75)
x = rand.nextFloat()*6;
else
x = rand.nextFloat()*-6;
}else{
if(rand.nextFloat() < 0.75)
x = rand.nextFloat()*-6;
else
x = rand.nextFloat()*6;
}
if(current_y <=0){
if(rand.nextFloat() < 0.75)
y = rand.nextFloat()*12;
else
y = rand.nextFloat()*-12;
}else{
if(rand.nextFloat() < 0.75)
y = rand.nextFloat()*-12;
else
y = rand.nextFloat()*12;
}
PlayerPose pp = new PlayerPose();
pp.setPx(x);
pp.setPy(y);
position_interface.setVelocity(pp, 0);
sleep(MOVE_SECONDS);
position_interface.setSpeed(0.0f, 0.0f);
sleep(WAIT_SECONDS + rand.nextInt() % WAIT_JITTER);
}
position_interface.setSpeed(9999.0f, 0.0f);
}
public void sleep(int ms){
try{
Thread.sleep(ms);
}catch(Exception e){
System.err.println("Error sleeping.");
e.printStackTrace();
System.exit(-1);
}
}
public float angle_diff(float current, float desired)
{
float diff = desired - current;
while(diff > 180.0f) diff -= 360.0f;
while(diff < -180.0f) diff += 360.0f;
return diff;
}
public float fix_angle(float f){
while(f < 0.0f) f += 360.0f;
while(f > 360.0f) f -= 360.0f;
return f;
}
public void die(){
System.err.println("Prey \"" + this.my_name + "\" has been killed!");
this.keep_going = false;
}
}
public class Driver{
public static void main(String args[]){
DataChannel dc = new DataChannel();
//instantiate the predators
Predator pred1 = new Predator("pred1", dc, 0, 0, 13);
Predator pred2 = new Predator("pred2", dc, 1, 0, 0);
Predator pred3 = new Predator("pred3", dc, 2, 0, -13);
Predator pred4 = new Predator("pred4", dc, 3, -13, -8);
Predator pred5 = new Predator("pred5", dc, 4, -13, 8);
//instantiate the prey
Prey prey1 = new Prey("prey1", dc, 5, 18, 18);
Prey prey2 = new Prey("prey2", dc, 6, 18, -18);
Prey prey3 = new Prey("prey3", dc, 7, 18, -9);
Prey prey4 = new Prey("prey4", dc, 8, 18, 9);
//start all the threads
dc.start();
pred1.start();
pred2.start();
pred3.start();
pred4.start();
pred5.start();
prey1.start();
prey2.start();
prey3.start();
prey4.start();
}
}
Lösung
Die Räuber müssen nicht tatsächlich kommunizieren. Sie müssen nur Beute suchen, und so nah wie möglich zu verschieben.
Also, wenn p1 und p2 stellen Räuber und o1 darstellt Beute:
A B C D
0 . . . .
1 . p2 . .
2 . . p1 .
3 . . o1 .
p1 ist so nah wie es o1 bekommen können, so sagen bleibt.
p2 kann aber näher kommen von bis B3 bewegen.
Nun, in Ihrem Beispielcode, haben Sie 4 Räuber und 5 Beute. Dies könnte zu einem Fall führen, dass es nicht genug Räuber auf einer Beute konzentriert, sich zu beseitigen. Damit das funktioniert, müssen Sie eine heuristische wie:. „Bevorzugen die Beute mit den meisten Räuber“
Sie können auch den Fall berücksichtigen müssen, wo beide Seiten gleich sind. Sie könnten mit einem Raubtier pro Beute aufzuwickeln. Das kann, indem Räuber aufgeben gehandhabt werden, wenn eine Zeit verstreicht, ohne dass ihre Beute beseitigt werden. Sie wollen etwas Zufälligkeit enthalten, so dass nicht alle Räuber zugleich aufgeben. So etwas wie baseGiveUpTime + (int)(2 * numPred * Math.random())
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