Processing 1.0 - Processing Discourse - Create a class with moving images

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Index › Programming Questions & Help › Programs › Create a class with moving images

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Create a class with moving images (Read 437 times)

Frostmonkey

Create a class with moving images
Feb 14^th, 2009, 11:35pm

I am trying to make a rendition of this code that has 2 moving .png files as opposed to the drawn rectangles. Can someone please edit this code to show me how I can accomplish this? I've been unsuccessful so far.

// Learning Processing
// Daniel Shiffman
// http://www.learningprocessing.com

// Example 8-2: Two Car objects

Car myCar1;
Car myCar2; // Two objects!

void setup() {
size(200,200);
myCar1 = new Car(color(255,0,0),0,100,2); // Parameters go inside the parentheses when the object is constructed.
myCar2 = new Car(color(0,0,255),0,10,1);
}

void draw() {
background(255);
myCar1.move();
myCar1.display();
myCar2.move();
myCar2.display();
}

class Car { // Even though there are multiple objects, we still only need one class. No matter how many cookies we make, only one cookie cutter is needed.Isnâ€™t object-oriented programming swell?
color c;
float xpos;
float ypos;
float xspeed;

Car(color tempC, float tempXpos, float tempYpos, float tempXspeed) { // The Constructor is defined with arguments.
c = tempC;
xpos = tempXpos;
ypos = tempYpos;
xspeed = tempXspeed;
}

void display() {
stroke(0);
fill(c);
rectMode(CENTER);
rect(xpos,ypos,20,10);
}

void move() {
xpos = xpos + xspeed;
if (xpos > width) {
xpos = 0;
}
}
}

NoahBuddy

Re: Create a class with moving images
Reply #1 - Feb 15^th, 2009, 6:04am

Code:


...
myCar1 = new Car("file.png",color(255,0,0),0,100,2); //added filename
myCar2 = new Car("file2.png"...

...
class Car {
  PImage todraw;
  ...
  
  Car(String fname, color tempC, float tempXpos, float tempYpos, float tempXspeed) {
    todraw = loadImage(fname);
    ...
  }
  ...
  
  void display() {
    //stroke(0);
    //fill(c);
    //rectMode(CENTER);
    //rect(xpos,ypos,20,10);
    image(todraw,xpos,ypos,20,10);//Or use todraw.width, todraw.height
  } 
  ...
}

Frostmonkey YaBB Newbies Offline Posts: 3	Re: Create a class with moving images Reply #2 - Feb 15^th, 2009, 7:13pm Thank you very much Noah

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