Jbox2D server?

pop1040

in Contributed Library Questions • 11 months ago

So I have been working on getting a server - client jbox2D based sketch going and I got it mostly working. However, I have been having some strange bugs that I can't work out. Right now, I have projectile syncing working but for some reason, gravity seems to stop working after a while. Anyone know how to fix this?

Due to the amount of code and how I wrote it, I feel it would be unreasonable to put the entire thing in here so what I did was I uploaded my sketch to mediafire. Here is the link: http://www.mediafire.com/?6yy9votk4q7ivpd

However, I do have the main page of the server and the client here in-case there is any obvious bugs that are easy to spot:

server main tab:

import pbox2d.*;
import org.jbox2d.common.*;
import org.jbox2d.dynamics.joints.*;
import org.jbox2d.collision.shapes.*;
import org.jbox2d.collision.shapes.Shape;
import org.jbox2d.common.*;
import org.jbox2d.dynamics.*;
import org.jbox2d.dynamics.contacts.*;
import processing.net.*;
PBox2D box2d;
Tank tank;
Server s;
Client c;
String input;
int data[];
//ArrayList boundaries;
Surface surface;
ArrayList<Particle> particles;
void setup() {
size(1000,500);
smooth();
box2d = new PBox2D(this);
box2d.createWorld();
tank = new Tank(200,200);
/*boundaries = new ArrayList();
boundaries.add(new Boundary(width/2,height-5,width,10,0));
boundaries.add(new Boundary(width/2,5,width,10,0));
boundaries.add(new Boundary(width-5,height/2,10,height,0));
boundaries.add(new Boundary(5,height/2,10,height,0));*/
particles = new ArrayList<Particle>();
surface = new Surface();
s = new Server(this, 7787);
}
void mousePressed(){
Vec2 temp_pos = tank.getCenter();
float temp_deg = getAngle(int(temp_pos.x),int(temp_pos.y)-15,mouseX,mouseY,90);
particles.add(new Particle(temp_pos.x,temp_pos.y-15,cos(radians(temp_deg))*30,sin(radians(temp_deg))*30,3));
}
void keys(){
if(keyPressed){
if(key == 'a' || key == 'A'){
tank.setSpeed(PI*3);
}else if(key == 'd' || key == 'D'){
tank.setSpeed(-PI*3);
}else{
tank.setSpeed(0);
}
}else{
tank.setSpeed(0);
}
}
void draw() {
boolean repeat = true;
while(repeat){
c = s.available();
if(c != null){
input = c.readString();
//input = input.substring(0, input.indexOf("\n")); // Only up to the newline
data = int(split(input, ' ')); // Split values into an array
if(data[0] == 0){
String senddata = "0";
ArrayList<Vec2> temp_senddata = surface.getPosData();
for(int i = 0; i < temp_senddata.size(); i++){
senddata = senddata + " " + temp_senddata.get(i).x + " " + temp_senddata.get(i).y;
}
s.write(senddata);
}else if(data[0] == 1){
println("server recived data request");
String senddata = "1";
for (int i = particles.size()-1; i >= 0; i--) {
Particle p = particles.get(i);
Vec2 temp_pos = p.getPostion();
Vec2 temp_velocity = p.getLinearVelocity();
senddata = senddata + " " + temp_pos.x + " " + temp_pos.y + " " + temp_velocity.x + " " + temp_velocity.y + " " + p.getAngularVelocity() + " " + p.getLinearDamping();
}
s.write(senddata);
}
}else{
repeat = false;
}
}
keys();
background(255);
box2d.step();
tank.display();
/*
for (int i = 0; i < boundaries.size(); i++) {
Boundary wall = (Boundary) boundaries.get(i);
wall.display();
}*/
surface.display();
fill(0);
for (int i = particles.size()-1; i >= 0; i--) {
Particle p = particles.get(i);
p.display();
// Particles that leave the screen, we delete them
// (note they have to be deleted from both the box2d world and our list
if (p.done()) {
particles.remove(i);
}
}
fill(0);
text("Use the mouse to aim and fire\nPress space to toggle motor",12,22);
}
float getDistance(int x1,int y1,int x2,int y2){
return sqrt(sq(abs(x1-x2))+sq(abs(y1-y2)));
}
float getAngle(int x1,int y1,int x2,int y2,int offset){
float output;
if(x2>x1){
output=map(acos((y2-y1)/getDistance(x1,y1,x2,y2)),0,PI,0,180);
}else{
output=(180-map(acos((y2-y1)/getDistance(x1,y1,x2,y2)),0,PI,0,180))+180;
}
output=output-offset;
output=mapToDeg(output);
return output;
}
float mapToDeg(float input){
while(input<0){
if(input<0){
input=input+360;
}
}
while(input>=360){
if(input>=360){
input=input-360;
}
}
return input;
}

client main tab:

import pbox2d.*;
import org.jbox2d.common.*;
import org.jbox2d.dynamics.joints.*;
import org.jbox2d.collision.shapes.*;
import org.jbox2d.collision.shapes.Shape;
import org.jbox2d.common.*;
import org.jbox2d.dynamics.*;
import org.jbox2d.dynamics.contacts.*;
import processing.net.*;
PBox2D box2d;
Tank tank;
Client c;
String input;
float data[];
int reconnection;
boolean wait;
int waitcount;
int nettimer;
NumberBox ipa = new NumberBox(3);
NumberBox ipb = new NumberBox(3);
NumberBox ipc = new NumberBox(3);
NumberBox ipd = new NumberBox(3);
//ArrayList boundaries;
Surface surface;
ArrayList<Particle> particles;
int menumode = 0;
void setup() {
size(1000,500);
smooth();
box2d = new PBox2D(this);
box2d.createWorld();
tank = new Tank(200,200);
/*boundaries = new ArrayList();
boundaries.add(new Boundary(width/2,height-5,width,10,0));
boundaries.add(new Boundary(width/2,5,width,10,0));
boundaries.add(new Boundary(width-5,height/2,10,height,0));
boundaries.add(new Boundary(5,height/2,10,height,0));*/
particles = new ArrayList<Particle>();
}
void draw(){
switch(menumode){
case 0:
renderMenu();
break;
case 1:
tryconnection();
break;
case 2:
renderGame();
break;
}
}
void keyPressed(){
if(menumode == 2){
ipa.keyin();
ipb.keyin();
ipc.keyin();
ipd.keyin();
}
}
void tryconnection(){
if (c.available() > 0) {
input = c.readString();
//input = input.substring(1, input.indexOf("\n")); // Only up to the newline
data = float(split(input, ' ')); // Split values into an array
println(data);
if(data[0] == 0 && data[data.length-1] == 0 && data.length > 300){
ArrayList<Vec2> surfacein = new ArrayList<Vec2>();
for(int i = 1; i < data.length-2; i = i + 2){
surfacein.add(new Vec2(data[i],data[i+1]));
}
surfacein.add(new Vec2(0,0));
surface = new Surface(surfacein);
menumode = 2;
}else{
wait = true;
}
}
if(wait){
waitcount = waitcount + 1;
}
if(waitcount >= 40){
waitcount = 0;
wait = false;
c.write("0");
}
}
void renderMenu(){
background(255);
ipa.render(width/2-55,height/2-7,25,15);
ipb.render(width/2-27,height/2-7,25,15);
ipc.render(width/2+2,height/2-7,25,15);
ipd.render(width/2+30,height/2-7,25,15);
text("Enter server Ip:",width/2-40,height/2-10);
if(button(width/2-23,height/2+12,46,12,"connect")){
menumode = 1;
c = new Client(this, ipa.getData() + "." + ipb.getData() + "." + ipc.getData() + "." + ipd.getData(), 7787);
c.write("0\n");
}
if(button(width/2-27,height/2+26,54,12,"localhost")){
menumode = 1;
c = new Client(this,"LOCALHOST", 7787);
c.write("0");
}
}
void mousePressed(){
if(menumode == 2){
Vec2 temp_pos = tank.getCenter();
float temp_deg = getAngle(int(temp_pos.x),int(temp_pos.y)-15,mouseX,mouseY,90);
//particles.add(new Particle(temp_pos.x,temp_pos.y-15,cos(radians(temp_deg))*30,sin(radians(temp_deg))*30,3));
}
}
void keys(){
if(keyPressed){
if(key == 'a' || key == 'A'){
tank.setSpeed(PI*3);
}else if(key == 'd' || key == 'D'){
tank.setSpeed(-PI*3);
}else{
tank.setSpeed(0);
}
}else{
tank.setSpeed(0);
}
}
void renderGame() {
if (c.available() > 0) {
input = c.readString();
//input = input.substring(1, input.indexOf("\n")); // Only up to the newline
data = float(split(input, ' ')); // Split values into an array
println("data revived");
if(data[0] == 0 && data[data.length-1] == 0 && data.length > 300){
ArrayList<Vec2> surfacein = new ArrayList<Vec2>();
for(int i = 1; i < data.length-2; i = i + 2){
surfacein.add(new Vec2(data[i],data[i+1]));
}
surfacein.add(new Vec2(0,0));
surface = new Surface(surfacein);
}else if(data[0] == 1 && data.length > 1){
println("client recived update ");
//newparticles.clear();
particles.clear();
for (int i = 1; i <= data.length-6; i = i + 6){
particles.add(new Particle(data[i],data[i+1],data[i+2],data[i+3],3,data[i+4],data[i+5]));
}
}
}
keys();
background(255);
box2d.step();
tank.display();
if(nettimer == 20){
c.write("1 ");
}else if(nettimer >= 40){
nettimer = 0;
}
nettimer = nettimer + 1;
/*
for (int i = 0; i < boundaries.size(); i++) {
Boundary wall = (Boundary) boundaries.get(i);
wall.display();
}*/
if(surface != null){
surface.display();
}
fill(0);
//if(particles != null){
for (int i = particles.size()-1; i >= 0; i--) {
Particle p = particles.get(i);
p.display();
// Particles that leave the screen, we delete them
// (note they have to be deleted from both the box2d world and our list
if (p.done()) {
particles.remove(i);
}
}
//}
fill(0);
text("Use the mouse to aim and fire\nPress A and D to move",12,22);
}
float getDistance(int x1,int y1,int x2,int y2){
return sqrt(sq(abs(x1-x2))+sq(abs(y1-y2)));
}
float getAngle(int x1,int y1,int x2,int y2,int offset){
float output;
if(x2>x1){
output=map(acos((y2-y1)/getDistance(x1,y1,x2,y2)),0,PI,0,180);
}else{
output=(180-map(acos((y2-y1)/getDistance(x1,y1,x2,y2)),0,PI,0,180))+180;
}
output=output-offset;
output=mapToDeg(output);
return output;
}
float mapToDeg(float input){
while(input<0){
if(input<0){
input=input+360;
}
}
while(input>=360){
if(input>=360){
input=input-360;
}
}
return input;
}
boolean button(int x, int y, int w, int h, String textin){
stroke(0);
if(mouseX >= x && mouseX <= x+w && mouseY >= y && mouseY <= y+h){
if(mousePressed){
return true;
}
fill(255,255,210);
}else{
fill(255);
}
strokeWeight(1);
rect(x,y,w,h);
fill(0);
text(textin,x+1,y+h-1);
return false;
}

Jbox2D server?

Statistics

Tags

Actions

Related Posts