Processing Question (cant get keypressed to work)

Programming Questions

wayway409

Processing Question (cant get keypressed to work)

in Programming Questions • 2 years ago

I am working on a school assignment now, i have tried to get my white fish to move when i press W/A/S/D key

and put the fist right in the middle, however, wont able to get it to work....

any comments will help!

Thanks

I have setup-ed different class for Fishp and PlayerFish.

import processing.opengl.PGraphicsOpenGL;
int amount = 10;
Fishp[]fishs = new Fishp [amount];
PlayerFish player = new PlayerFish();
boolean up, down, right, left ;
float speed = 0.8;
void keyPressed(){
if (key == 'w') up = true;
if (key == 'a') left = true;
if (key == 's') down = true;
if (key == 'd') right = true;
}//keypressed
void keyReleased(){
if (key == 'w') up = false;
if (key == 'a') left = false;
if (key == 's') down = false;
if (key == 'd') right = false;
}//keyReleased
void setup(){
size(1000,1000,OPENGL);
smooth();
for(int i=0; i<amount; i++)
{
fishs [i]=new Fishp();
}
}
void draw()
{
background(255);
fill(26,131,135);
smooth();
rect(0,0,1000,1000);
if(up) player.addAcc( new PVector (0,-speed));
if(down) player.addAcc( new PVector (0,speed));
if(left) player.addAcc( new PVector (-speed,0));
if(right) player.addAcc( new PVector (speed,0));
player.update();
player.boundary();
player.drawMe();
for (int i=0; i<amount; i++){
fishs[i].update();
fishs[i].boundary();
fishs[i].drawMe();
}
}

Replies(3)

wayway409

Re: Processing Question (cant get keypressed to work)

2 years ago

also this is my player class :

class PlayerFish extends Fishp {

float angle;

PlayerFish() {

super();

c = (255);

}

void update() {

super.update();//call super class update method

angle = atan2(velX, velY);

}

void addAcc (PVector newAcc) {

acc.add(newAcc);

}

void drawMe() {

fill(c);

pushMatrix();

translate(fishX,fishY);

scale(fSize);

if (velX<0) {

rotateY(PI);

}

if(!fishAlive) {

rotate(-PI/2);

}

ellipse(0,0,10,10);

//fin

stroke(0);

smooth();

fill(191,171,191);

curve(0,200,-95,0,-50,0,200,200);

curve(0,-500,-95,0,-50,0,200,-100);

//fin top

fill(191,171,191);

triangle(0,-20,-20,-70,-40,-20);

triangle(10,-20,-10,-65,-30,-20);

triangle(20,-20,0,-60,-20,-20);

triangle(30,-20,10,-55,-10,-20);

triangle(40,-20,20,-50,0,-20);

//body of the fish

fill(c);

arc(0,0,100,110,0,PI/2);

arc(0,0,120,140,0,PI);

arc(0,0,120,80,PI,TWO_PI-PI/2);

arc(0,0,120,80,radians(270),radians(360));

//eyes

fill(255);

stroke(0);

ellipse(30,-10,30,30);

ellipse(60,-10,30,30);

fill(0);

ellipse(30,-10,5,5);

ellipse(60,-10,5,5);

//gill

fill(191,171,191);

triangle(30,28,10,45,20,15);

fill(191,171,120);

triangle(30,20,0,40,10,10);

//student # special (301087482)

//Your fish body must be decorated with dots.

fill(71,74,47);

strokeWeight(2);

ellipse(-20,50,5,5);

ellipse(-10,50,5,5);

ellipse(-20,40,5,5);

ellipse(-15,30,5,5);

ellipse(-20,50,5,5);

ellipse(-30,40,5,5);

ellipse(-25,30,5,5);

ellipse(-20,40,5,5);

ellipse(-30,30,5,5);

ellipse(-25,20,5,5);

ellipse(-75,20,5,5);

ellipse(-85,10,5,5);

ellipse(-80,0,5,5);

//mouth

fill(255);

stroke(205,0,0);

strokeWeight(2);

ellipse(50,30,15,15);

popMatrix();

}

wayway409

Re: Processing Question (cant get keypressed to work)

2 years ago

and my parent class :)

class Fishp {

float fishX,fishY,velX,velY,fSize,constY,theta;

float mass, damp;

PVector acc,vel,pos;

boolean fishAlive;

color c;

Fishp() {

int i=0;

fishX = random(width);

fishY = random(height);

damp = 0.98;

pos = new PVector( random(width), random(height) );

vel = new PVector( random(-8, 8), random(-8, 8) );

acc = new PVector( 0, 0);

constY = fishY;

velX = random(0.5, 1);//determine random speed

velY = random(0.5, 1);

fSize = random(0.1,0.5);

fishAlive = true;

c = color(random(255), random(255), random(255));

}

void update() {

vel.add(acc); //instant forces that need to be include in vel

pos.add(vel); //always do this to move particle

vel.mult(damp);

acc.set(0, 0, 0);

}

void boundary()

{

if (fishX > width-52) {

fishX = width-52;

velX *= -1;

}

if (fishX < 50) { //added value to make it more precise

fishX = 50;

velX *= -1;

}

if (fishY > height -50) {

fishY = height-50;

velY *= -1;

}

if (fishY < 50 && fishAlive) {

fishY = 50;

velY *= -1;

}

void drawMe() {

int i = 0;

if (fishAlive) {

/*velY = sin(radians(fishX))*40;*/

fishX += velX;

velY = sin(radians(fishX)*2);

/*fishY += velY*sin(theta);*/

}

else {

fishY +=velY;

}

fishX += velX;

fishY += velY;

fill(c);

pushMatrix();

translate(fishX,fishY);

scale(fSize);

if (velX<0) {

rotateY(PI);

}

if(!fishAlive) {

rotate(-PI/2);

}

ellipse(0,0,10,10);

//fin

stroke(0);

smooth();

fill(191,171,191);

curve(0,200,-95,0,-50,0,200,200);

curve(0,-500,-95,0,-50,0,200,-100);

//fin top

fill(191,171,191);

triangle(0,-20,-20,-70,-40,-20);

triangle(10,-20,-10,-65,-30,-20);

triangle(20,-20,0,-60,-20,-20);

triangle(30,-20,10,-55,-10,-20);

triangle(40,-20,20,-50,0,-20);

//body of the fish

fill(c);

arc(0,0,100,110,0,PI/2);

arc(0,0,120,140,0,PI);

arc(0,0,120,80,PI,TWO_PI-PI/2);

arc(0,0,120,80,radians(270),radians(360));

//eyes

fill(255);

stroke(0);

ellipse(30,-10,30,30);

ellipse(60,-10,30,30);

fill(0);

ellipse(30,-10,5,5);

ellipse(60,-10,5,5);

//gill

fill(191,171,191);

triangle(30,28,10,45,20,15);

fill(191,171,120);

triangle(30,20,0,40,10,10);

//student # special (301087482)

//Your fish body must be decorated with dots.

fill(71,74,47);

strokeWeight(2);

ellipse(-20,50,5,5);

ellipse(-10,50,5,5);

ellipse(-20,40,5,5);

ellipse(-15,30,5,5);

ellipse(-20,50,5,5);

ellipse(-30,40,5,5);

ellipse(-25,30,5,5);

ellipse(-20,40,5,5);

ellipse(-30,30,5,5);

ellipse(-25,20,5,5);

ellipse(-75,20,5,5);

ellipse(-85,10,5,5);

ellipse(-80,0,5,5);

//mouth

fill(255);

stroke(205,0,0);

strokeWeight(2);

ellipse(50,30,15,15);

popMatrix();

}

justinlivi

Re: Processing Question (cant get keypressed to work)

2 years ago

It seems that you're trying to use the PVector vel to control the movement of your fish, but you never add these values to your position, fishX and fishY.

a quick and dirty fix is is put

fishX += vel.x;
fishY += vel.y;

at the start of your PlayerFish drawMe function. You seem to have more going on here, but that will let you control the fish. You probably want to initialize vel as (0,0) and add your random values in a function specific to your CPU control fish.
___________
http://justinlivi.net

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