Here's a video explaining what I did
https://drive.google.com/file/d/0B8ZGdT5f3eJkZG5CaGktZnVlRjg/view?usp=sharing
ARDUINO CODE
/////////////////////////////////////////
const int potPin1 = A0;
const int potPin2 = A5;
const int button1=3;
const int button2=5;
void setup() {
Serial.begin(9600);
}
void loop() {
int potVal1 = analogRead(potPin1);
potVal1 = map(potVal1,0,1023,0,127);
int potVal2 = analogRead(potPin2);
potVal2 = map(potVal2,0,1023,0,127);
int buttonVal1 = digitalRead(button1);
int buttonVal2 = digitalRead(button2);
Serial.write(buttonVal1);
delay(10);
Serial.write(buttonVal2);
delay(10);
Serial.write(potVal1);
delay(10);
Serial.write(potVal2);
delay(50);
}
////////////////////////////////////////////
PONG GAME CODE(I didn't take any code from any online sources, everything was written by me)
/////////////////////////////////////////////
import processing.serial.*;
Serial arduinoPort;
//Input Variables
int buttonVal1; // 0 or 1
int buttonVal2;
int potVal1; // 0 to 127(max byte)
int potVal2;
//Screen vars
int scrnW = 800;
int scrnH = 550;
//ball variables
static float bRad = 30;
float bPosX=0;
float bPosY=0;
float bVelX=0;
float bVelY=0;
//paddle variables
float pWidth = bRad;
float pHeight = 6*bRad;
float pPosX=0;
float pPosY=0;
float pVel=8;
void setup(){
size(scrnW,scrnH);
bPosX=width/2;
bPosY=height/2;
println(Serial.list());
String portName = Serial.list()[0];
arduinoPort = new Serial(this,portName,9600);
}
void draw(){
byte [] inputBuffer = new byte[7];
while(arduinoPort.available()>3){
inputBuffer = arduinoPort.readBytes();
arduinoPort.readBytes(inputBuffer);
if(inputBuffer!=null){
String myString = new String(inputBuffer);
buttonVal1 = inputBuffer[0];
buttonVal2 = inputBuffer[1];
potVal1 = inputBuffer[2];
potVal2 = inputBuffer[3];
//println(buttonVal1 + " "+buttonVal2 + " " + potVal1+" "+potVal2);
}
}
//UPDATE PHYSICS
Update();
//DRAW
background(255,255,0);
//draw paddle
fill(0,0,255);
rect(pPosX,pPosY,pWidth,pHeight,7);
//draw ball
fill(255,0,0);
ellipse(bPosX,bPosY, bRad*2, bRad*2);
}
//bound of paddle
//0 to height-pHeight/2;
void Update(){
//move paddle
if(buttonVal1==1){
pPosY+=pVel;
if(pPosY>height-pHeight){pPosY=height-pHeight;}
}
if(buttonVal2==1){
pPosY-=pVel;
if(pPosY<0){pPosY=0;}
}
//update Ball Velocity
float acellX = map(potVal1,6,127,1,-1);
float acellY = map(potVal2,6,127,-1,1);
bVelX+=acellX;
bVelY+=acellY;
if(bVelX>pVel){bVelX=pVel;}
if(bVelX<-pVel){bVelX=-pVel;}
if(bVelY>pVel){bVelY=pVel;}
if(bVelY<-pVel){bVelY=-pVel;}
//update Ball position
bPosX+=bVelX;
bPosY+=bVelY;
//Process ball borders
ballBorders();
//Process ball-Paddle Collision
paddleCollision();
}
void ballBorders(){
float top = bPosY+bRad;
float bot = bPosY-bRad;
float left = bPosX-bRad;
float right = bPosX+bRad;
if(top>height){
bPosY=height-bRad;
bVelY*=-1;
}
if(bot<0){
bPosY=0+bRad;
bVelY*=-1;
}
if(right>width){
bPosX=width-bRad;
bVelX*=-1;
}
if(left<0){
bPosX=bRad;
bVelX*=-1;
println("LOSE");
}
}
void paddleCollision(){
//find out if there is collision.
boolean tf = isPaddleCollision();
//if there is,
if(tf){
bVelX*=-1;
bPosX=bRad+pWidth;
}
}
boolean isPaddleCollision(){
float topB = bPosY+bRad;
float botB = bPosY-bRad;
float leftB = bPosX-bRad;
float rightB = bPosX+bRad;
float topP = pPosY+pHeight;
float botP = pPosY;
float leftP = pPosX;
float rightP = pPosX+pWidth;
if(topB<botP) {
println(1);
return false;
}
if(botB>topP){
println(2);
return false;
}
if(rightB<leftP){
println(3);
return false;
}
if(leftB>rightP){
println(4);
return false;
}
println("COLLISION");
return true;
}
/////////////////////////////////////////////
