Strange connections
<source lang="java" line start="2" highlight="4-6">
// using mqtt protokoll via shiftr.io
// https://docs.shiftr.io/manuals/processing/
import mqtt.*; MQTTClient client;
/// Connection to other player
String mePlayer = "/playing-together/red/p2/xy";
String otherPlayer = "/playing-together/red/p1/xy";
/// variables for position of others players mouse int otherMouseX = 0; int otherMouseY = 0; int otherPreviousMouseX = 0; //to keep track of last mouse position for drawing line int otherPreviousMouseY = 0;
//set fix color for players int p1color, p2color; // time variables for mqtt long timeStamp; int delayTime = 1000/35;
void setup() { client = new MQTTClient (this); client.connect ("mqtt://virtualEncounterSpace:avkVirtual@broker.shiftr.io","annavera"); size(600,600); background(255); p1color = #AD2C2C; // color for player 1 p2color = #230E9D; // color for player 2 } // RECEIVE messages of other player/// void clientConnected(){ println("client connected"); client.subscribe(otherPlayer); }
void messageReceived(String topic, byte [] payload){
// the incoming MQTT "message" is a String: "xValue,yValue"
// to unpack it we use the "split" function:
String incomingPayload = new String(payload);
String [] xy = split(incomingPayload, ',');
if (int(xy[0])== 0 && int(xy[1])== 0){
background(255);
} else {
println("new message: " + topic + " x: " + xy[0] + " y: " +xy[1]);
otherMouseX = int(xy[0]);
otherMouseY = int(xy[1]);
}}
//SEND my mouse x, y // void mouseDragged(){
//the MQTT connection will close if you send more than 25 operations per second!
//so we implement a delay to SEND my coordinates only every xxx milliseconds:
if(millis() - timeStamp > delayTime){
timeStamp = millis();
client.publish(mePlayer,mouseX + "," + mouseY);
}
strokeWeight(5); // set line thickness
// set right color for player //
if (mePlayer == "/playing-together/red/p1/xy"){
stroke(p1color);
} else if (mePlayer == "/playing-together/red/p2/xy") {
stroke(p2color);
}
line (pmouseX,pmouseY,mouseX, mouseY);
//set right color for player //
if (mePlayer == "/playing-together/red/p1/xy"){
stroke(p2color);
} else if (mePlayer == "/playing-together/red/p2/xy") {
stroke(p1color);
}
line (otherMouseX, otherMouseY, mouseX, mouseY);
}
// DRAW void draw() {
strokeWeight(5); //line thickness
// set right color for player //
if (mePlayer == "/playing-together/red/p1/xy"){
stroke(p2color);
} else if (mePlayer == "/playing-together/red/p2/xy") {
stroke(p1color);
}
line(otherPreviousMouseX, otherPreviousMouseY, otherMouseX, otherMouseY);
otherPreviousMouseX = otherMouseX; //update previous to be current
otherPreviousMouseY = otherMouseY; //update previous to be current
if (mePlayer == "/playing-together/red/p1/xy"){
stroke(p1color);
} else if (mePlayer == "/playing-together/red/p2/xy") {
stroke(p2color);
}
line (mouseX, mouseY, otherMouseX,otherMouseY);
}
// reset canvas // void keyPressed(){
background(255); client.publish(mePlayer, 0 + "," + 0);
}
//DEFECT REPORT /// void connectionList(){
println("connection lost");
}