PathComponent.java :  » Game » seed-videogame » seed » field » Java Open Source

package seed.field;

import java.util.ArrayList;
import java.util.Iterator;

import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Image;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.geom.Vector2f;
import org.newdawn.slick.state.StateBasedGame;

import seed.engine.Component;

public class PathComponent extends Component{
  
  ArrayList<Vector2f> path = null;
  
  public PathComponent(String id, ArrayList<Vector2f> p){
    this.id = id;
    path = p;
  }
  
  public void init(GameContainer gc) throws SlickException{
    Iterator it = path.iterator();
    Vector2f prev_coord = null;
    float dist_x, dist_y;
    while(it.hasNext()){
      Vector2f cur_coord = (Vector2f) it.next();
      if(prev_coord != null){
        dist_x =  cur_coord.getX() - prev_coord.getX();
        dist_y =  cur_coord.getY() - prev_coord.getY();
        while(!((Math.abs(dist_x)+Math.abs(dist_y))<1)){
          Field.getInstance().changeBlockTexture((int)prev_coord.getX(),(int)prev_coord.getY(), new Image("res/path.png"));
          Field.getInstance().addBlockType((int)prev_coord.getX(),(int)prev_coord.getY(),new BlockType(BlockType.Types.CHEMIN));
          Field.getInstance().addBlockType((int)prev_coord.getX(),(int)prev_coord.getY(),new BlockType(BlockType.Types.NON_CONSTRUCTIBLE));
          double angle = Math.atan2(dist_y, dist_x);
          prev_coord.set((float) (prev_coord.getX() + Math.cos(angle)), (float) (prev_coord.getY() + Math.sin(angle)));
          dist_x =  cur_coord.getX() - prev_coord.getX();
          dist_y =  cur_coord.getY() - prev_coord.getY();
        }
        Field.getInstance().changeBlockTexture((int)prev_coord.getX(),(int)prev_coord.getY(), new Image("res/path.png"));
        Field.getInstance().addBlockType((int)prev_coord.getX(),(int)prev_coord.getY(),new BlockType(BlockType.Types.CHEMIN));
        Field.getInstance().addBlockType((int)prev_coord.getX(),(int)prev_coord.getY(),new BlockType(BlockType.Types.NON_CONSTRUCTIBLE));
      }
      prev_coord = cur_coord;
    }
  }
  
  public void update(GameContainer gc, StateBasedGame sb, int delta){
  }
}