Hey guys recently i decided to make a multiplayer pong game every player will play on their phones over bluetooth so to accomplish that i downloaded ketai library and started using bluetooth then i noticed that library was not finding any devies (i double checked that all bluetooth devices were visible) then i made some research and people says that you need to add coarse and fine location permissions to your sketch so i did that and it worked for once but then when i restarted the sketch it didnt i checked everything i didnt made any diffrence so can you help me get it working again?
Here is my code:
Pong.pde:
import oscP5.*;
import android.os.Bundle;
import android.view.WindowManager;
import android.content.res.Configuration;
import android.content.Intent;
import ketai.net.bluetooth.*;
import ketai.ui.*;
import ketai.net.*;
KetaiBluetooth bt;
Ball a;
Paddle p;
Paddle q;
KetaiList klist;
boolean mainScreen = false;
boolean configured = false;
float previous;
float ballPrevious;
int p1score;
int state = 0;
int p2score;
float p1y;
float p2y;
public void onConfigurationChanged(Configuration newConfig) {
super.getActivity().onConfigurationChanged(newConfig);
}
void onCreate(Bundle bundle) {
super.onCreate(bundle);
bt = new KetaiBluetooth(this);
super.onCreate(bundle);
getActivity().getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
void onActivityResult(int requestCode, int resultCode, Intent data) {
bt.onActivityResult(requestCode, resultCode, data);
}
void setup()
{
bt.start();
textSize(72);
textAlign(CENTER);
previous = millis();
q = new Paddle(10, 150, 250);
p = new Paddle(10, 150, width - 250);
a = new Ball();
fullScreen();
orientation(LANDSCAPE);
}
void draw()
{
if (configured)
{
if (!mainScreen)
{
mainScreen();
} else
{
if (touches.length == 2)
{
a.move();
if (touches[0].x > width / 2)
{
p1y = touches[0].y;
p2y = touches[1].y;
} else
{
p1y = touches[1].y;
p2y = touches[0].y;
}
}
gameScreen();
a.display();
a.bounce();
a.collideRightPaddle();
a.collideLeftPaddle();
a.offScreen();
p.display();
q.display();
p.y = p1y;
q.y = p2y;
checkTime();
}
} else
{
bluetoothScreen();
}
}
void checkTime()
{
if (millis() - previous > 20000 && !(p.h == 200))
{
if (a.xs > 0) a.xs = a.xs + 1;
if (a.xs < 0) a.xs = a.xs - 1;
previous = millis();
q.speed +=1.32;
p.speed +=1.32;
p.h += 8;
q.h += 8;
}
}
void touchStarted()
{
if (touches[0].x > width / 2 - 250 && touches[0].y > height / 2 - 125 && touches[0].x < width / 2 + 250 && touches[0].y < height / 2 + 125 && configured) mainScreen = true;
if (touches[0].y < height / 5 && touches[0].x < width / 3) bt.discoverDevices();
if (touches[0].y < height / 5 && touches[0].x < width / 3 * 2 && touches[0].x > width / 3 && touches[0].x < width) bt.makeDiscoverable();
if (touches[0].y < height / 5 && touches[0].x < width && touches[0].x > width / 3 * 2) getDevices();
}
void getDevices()
{
if (bt.getDiscoveredDeviceNames().size() > 0) {
ArrayList<String> list = bt.getDiscoveredDeviceNames();
list.add("CANCEL");
klist = new KetaiList(this, list);
} else if (bt.getPairedDeviceNames().size() >= 0) {
ArrayList<String> list = bt.getPairedDeviceNames();
list.add("CANCEL");
klist = new KetaiList(this, list);
}
}
void onKetaiListSelection(KetaiList klist)
{
String selection = klist.getSelection();
if (!selection.equals("CANCEL"))bt.connectToDeviceByName(selection);
klist = null;
}
Ball.pde:
class Ball
{
float x = width / 2;
float y = height / 2;
float xs = -10;
float angle = 45;
float ys = 6;
float diameter = 40;
void move()
{
x += xs;
y += ys;
}
void display()
{
fill(0, 255, 0);
noStroke();
ellipse(x, y, diameter, diameter);
stroke(255);
fill(255);
}
void bounce()
{
if ((y + diameter / 2) > height)
{
if(ys > 0) ys = -ys;
}
if ((y - diameter / 2) < 0)
{
if(ys < 0) ys = -ys;
}
}
void collideRightPaddle()
{
float pbottom = p.y + p.h / 2;
float ptop = p.y - p.h /2;
if (y >= ptop && y <= pbottom && x + diameter / 2 > width - 250 - p.w / 2)
{
float place = y - p.y;
angle = map(place, -(p.h / 2), (p.h / 2), -75, 75);
ys = map(angle, -75, 75, -xs, xs);
xs = -xs;
}
}
void collideLeftPaddle()
{
float pbottom = q.y + q.h / 2;
float ptop = q.y - q.h /2;
if (y >= ptop && y <= pbottom && x - diameter / 2 < 250 + q.w / 2)
{
float place = y - q.y;
angle = map(place, -(q.h / 2), (q.h / 2), 75, -75);
ys = map(angle, -75, 75, -xs, xs);
xs = -xs;
}
}
void offScreen()
{
if ((x + diameter / 2) >= width - 190)
{
x = width / 2;
y = height / 2;
p1score++;
}
if ((x - diameter / 2) <= 190)
{
x = width / 2;
y = height / 2;
p2score++;
}
}
}
Paddle.pde:
class Paddle
{
float w;
float h;
float x;
float y = height / 2;
float speed = 10;
Paddle(float m, float n, float b)
{
w = m;
h = n;
x = b;
}
void display()
{
rectMode(CENTER);
rect(x, y, w, h);
}
}
Screen.pde: void mainScreen() { background(0); fill(0, 255, 0); rectMode(CENTER); rect(width / 2, height / 2, 500, 250); fill(255); text("PLAY", width / 2, height / 2 + 25); }
void gameScreen()
{
background(0);
stroke(255);
strokeWeight(3);
line(width / 2, 0, width / 2, height);
text(p1score, 200, 200);
text(p2score, width - 200, 200);
}
void bluetoothScreen()
{
background(0);
fill(78, 93, 75);
rectMode(CORNER);
stroke(255);
strokeWeight(3);
rect(0, 0, width / 3, height / 5);
rect(width / 3, 0, width / 3 * 2, height / 5);
rect(width / 3 * 2, 0, width, height / 5);
textAlign(CENTER);
fill(255);
text("Discover Devices", width / 3 / 2, height / 5 / 2);
text("Make Discoverable", width / 2, height / 5 / 2);
text("Devices", width / 3 + width / 3 * 1.5, height / 5 / 2);
}
Cant give you manifest file it breaks it but i checked it and there is coarse and fine location permissions as well as bluetooth and bluetooth admin
