wavyJava.java

package compsciproject;

import processing.core.PApplet;


public class CompSciProject extends PApplet 
{
	float a;

	public void setup() 
	{
		/* The applet is set to 500 pixels by 500 pixels */
		  size(500,500);
		  /* RGB mode set to maximum of 6, since we'll be using 6 colors. 0 for black, 6 for white, and everything in between. */
		  colorMode(RGB, 6,21,75);
		  /* The stroke color is used to determine the border color of each quadrilateral. */
		  stroke(0);
		  /* Frame rate is set to 30. */
		  frameRate(30);
	
	}

	public void draw()
	{
		  a -= 0.08;
		  /* Screen is cleared and background is set to 6 (white). */
		  background(6);

		  for (int x = -7; x < 7; x++) {
		   for (int z = -7; z < 7; z++) {

		    int y = (int) (24 * cos((float) (0.55 * distance(x,z,0,0) + a)));
		     

		    float xm = (float) (x*17 -8.5);
		    float xt = (float) (x*17 +8.5);
		    float zm = (float) (z*17 -8.5);
		    float zt = (float) (z*17 +8.5);
		     
		    /* We use an integer to define the width and height of the window. This is used to save resources on further calculating */
		    int halfw = (int)width/2;
		    int halfh = (int)height/2;
		     
		   
		    int isox1 = (int) (xm - zm + halfw);
		    int isoy1 = (int) ((xm + zm) * 0.5 + halfh);
		    int isox2 = (int) (xm - zt + halfw);
		    int isoy2 = (int) ((xm + zt) * 0.5 + halfh);
		    int isox3 = (int) (xt - zt + halfw);
		    int isoy3 = (int) ((xt + zt) * 0.5 + halfh);
		    int isox4 = (int) (xt - zm + halfw);
		    int isoy4 = (int) ((xt + zm) * 0.5 + halfh);
		     
		    /* The side quads. 2 and 4 is used for the coloring of each of these quads */
		    fill (2);
		    quad(isox2, isoy2-y, isox3, isoy3-y, isox3, isoy3+40, isox2, isoy2+40);
		    fill (4);
		    quad(isox3, isoy3-y, isox4, isoy4-y, isox4, isoy4+40, isox3, isoy3+40);
		     

		    fill((int) (4 + y * 0.05));
		    quad(isox1, isoy1-y, isox2, isoy2-y, isox3, isoy3-y, isox4, isoy4-y);
		   }
		  }
	}


	
	
	
	/* The distance formula */
	float distance(float x,float y,float cx,float cy) 
	{
	  return sqrt(sq(cx - x) + sq(cy - y));
	}

}