package geneticAnt;

import java.awt.Polygon;


public class Arrow  {
 // An arrow drawn in 00..99 cordinates
 
  public static final int X[] = {0,60,60,99,60,60,0} ;
  public static final int Y[] = {40,40,0,50,99,60,60} ;
  
  private int x[]; // coordinates for the arrow
  private int y[];

  

  public static Polygon create(int pos[], int grid, int direction) {
  // create an arrow polygon  at pos on the board -- note that pos[0] goes down

	 int x[] = new int[7]; // coordinates for the arrow
     int y[] = new int[7];

	 switch(direction) {
	   case Board.EAST : for (int i = 0; i < 7; i++) {
		   x[i] = (X[i]*grid)/100 + pos[1]*grid;
		   y[i] = (Y[i]*grid)/100 + pos[0]*grid;
		 }
	     break;
	   case Board.WEST : for (int i = 0; i < 7; i++) {
		   x[i] = (100 - X[i])*grid/100 + pos[1]*grid;
		   y[i] = (100 - Y[i])*grid/100 + pos[0]*grid;
		
		  }
		  break; 
		case Board.SOUTH : for (int i = 0; i < 7; i++) {
		   x[i] = (Y[i]*grid)/100 + pos[1]*grid;  // switch X and Y
		   y[i] = (X[i]*grid)/100 + pos[0]*grid;
		  }	
		  break; 

		 case Board.NORTH : for (int i = 0; i < 7; i++) {
		   x[i] = (100 -  Y[i])*grid/100 + pos[1]*grid;  // switch X and Y
		   y[i] = (100 -  X[i])*grid/100 + pos[0]*grid;  
		 }
		 break; 

		
	 }
//	 for (int i = 0; i < 7; i++)
//		 System.out.println("Pos" + pos[0] + " " + pos[1] + "Grid " + grid + 
//		    " i X Y " + i + " " + x[i] + " " + y[i]);
	 return new Polygon(x,y,7);
  }




}