Processing: How do you make a picture change...

Programming Questions

shadowvox

Processing: How do you make a picture change...

in Programming Questions • 7 months ago

when x coordinate +/- with mouse, and change back to original picture when it stops?

and how do you make a bullet shooting from a spaceship follow the spaceship with keycode?

Replies(3)

shadowvox

Re: Processing: How do you make a picture change...

7 months ago

i got the bullet to work,

heres the code, can1 plz help me with the changing picture when mouse moves right or left and change back when it stops?

PImage space;

class Kirby

{

private int xPos;

private int yPos;

private int speed;

private int r;

private int g;

private int b;

private boolean shot;

public Kirby(int x,int y,int sp)

{

xPos =x-9;

yPos =y-300;

speed =35;

r= 28;

g=166;

b =177;

shot =false;

}

public void setKST()

{

shot = true;

}

public void setKSF()

{

shot = false;

}

public void display()

{fill(r,g,b);

rect(xPos,yPos,7,50);

yPos-=speed;

}

ArrayList<Kirby>bullets= new ArrayList();

void setup()

{

size(1000,1000);

space = loadImage("kirby_Right.png");

}

void draw()

{

background(0);

image(space,mouseX-60,mouseY-60);

for(int i=0;i<bullets.size();i++)

{

Kirby b=bullets.get(i);

b.display();

}

void mousePressed()

{

bullets.add(new Kirby(mouseX,mouseY,5));

space =loadImage("Kirby_up.png");

}

void mouseReleased()

{

space = loadImage("kirby_Right.png");

}

shadowvox

Re: Processing: How do you make a picture change...

7 months ago

or can someone make it work with keypress instead?

GoToLoop

Re: Processing: How do you make a picture change...

7 months ago

I've taken your code and made some modifications.
Hope it can help you out on your game!

P.S.: Since I don't have your images, I used a square & circle instead.
Just comment those lines out and uncomment the image() one.

final static List
               
                <KirbyShot> bullets = 
                new 
                ArrayList();


                PImage spaceR, spaceU;

                boolean isBeingPressed;


                final 
                static 
                byte  shipSize = 60, bulletSpd = 5;

                final 
                static 
                color shipColor1 = #00FF00, shipColor2 = #FF0000;


                void 
                setup() {
  
                size(1280, 800);
  
                frameRate(50);
  
                noSmooth();

  
                imageMode(
                CENTER);
  
                rectMode(
                CENTER);
  
                ellipseMode(
                CENTER); 

  spaceR = 
                loadImage(
                "kirby_Right.png");
  spaceU = 
                loadImage(
                "Kirby_up.png");
}


                void 
                draw() {
  
                background(0);

  
                //image(isBeingPressed ? spaceU : spaceR, mouseX, mouseY);

  
                fill(isBeingPressed ? shipColor2 : shipColor1);
  
                if (isBeingPressed)   
                ellipse(
                mouseX, 
                mouseY, shipSize, shipSize);
  
                else                     
                rect(
                mouseX, 
                mouseY, shipSize, shipSize);

  
                fill(KirbyShot.c);
  
                for ( 
                int b = bullets.
                size(); b !=0; )
    
                if ( bullets.
                get(--b).display() )    bullets.remove(b);
}


                void 
                mousePressed() {
  isBeingPressed = 
                true;
  bullets.
                add( 
                new KirbyShot(
                mouseX, 
                mouseY, bulletSpd) );
}


                void 
                mouseReleased() {
  isBeingPressed = 
                false;
}


                class KirbyShot {
  
                int y;
  
                final 
                int x, s;

  
                final 
                static 
                byte  w = 7, h = 50;
  
                final 
                static 
                color c = #1CA6B1;  
                // (28, 166, 177)

  KirbyShot(
                int xx, 
                int yy, 
                int spd) {
    x = xx;
    y = yy - h;
    s = spd;
  }

  
                boolean display() {
    
                rect(x, y, w, h);
    
                return (y -= s) < -h;
  }
}

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