Create a project in your open processing with this code. Make sure you put your name at the top with the date and project description.
// Credit: Ren Ervin Bettendorf /* SCREENSAVERS FER DAYS BROSKIES */ void setup(){ size(600,500); background(0); frameRate(60); } int dx = 2; int dy = 3; int x = 50; int y = 50; void draw(){ fill(255); rect(x,y,25,25,5); x = x + dx; y = y + dy; if ( x< 0 || x > 475){ dx = -1 * dx; } if ( y < 0 || y > 475){ dy = -1 * dy; } }
If you get done early, check out this code from http://processing.org/tutorials/objects/:
// http://processing.org/tutorials/objects/ // Example: Two Car objects Car myCar1; Car myCar2; // Two objects! void setup() { size(200,200); // Parameters go inside the parentheses when the object is constructed. myCar1 = new Car(color(255,0,0),0,100,2); myCar2 = new Car(color(0,0,255),0,10,1); } void draw() { background(255); myCar1.drive(); myCar1.display(); myCar2.drive(); myCar2.display(); } // 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. class Car { color c; float xpos; float ypos; float xspeed; // The Constructor is defined with arguments. Car(color tempC, float tempXpos, float tempYpos, float tempXspeed) { c = tempC; xpos = tempXpos; ypos = tempYpos; xspeed = tempXspeed; } void display() { stroke(0); fill(c); rectMode(CENTER); rect(xpos,ypos,20,10); } void drive() { xpos = xpos + xspeed; if (xpos > width) { xpos = 0; } } }
Once you are done that, check this out: http://www.openprocessing.org/sketch/103348