//This is the wanderer class - these guys wander around, grouping together with their leader.
//If the leader is killed, the next follower in line takes up the mantle
//If a wanderer comes upon a pixel occupied by an enemy, a battle ensues.

class Wanderer {
  float xv, yv, friction, health;
  int x,y,leadernumber, id;
  boolean leader, alive;
  color thecolor;
  Wanderer(int xpos, int ypos, boolean isleader, int leadernum, color c, int idnum) {
    xv =random(-0.1,0.1);
    yv = random(-0.1,0.1);
    x = xpos;
    y = ypos;
    leader = isleader;
    friction = 0.92;
    leadernumber = leadernum;
    thecolor = c;
    id = idnum;
    alive = true;
    health = 100;

  };

  void update() {
    if (y > 0 && y < height && x > 0 && x < width) {
      int point = (y * width) + x;
      grid[point] = -1;
    };
      x += xv; y+= yv;

      xv += random(-1,1.1);
      yv += random(-1,1.1);

      xv *= friction;
      yv *= friction;

      if (!leader) {
        xv += (wanderers[leadernumber].x - x)/20;
        yv += (wanderers[leadernumber].y - y)/20;
        
        if (!wanderers[leadernumber].alive) {
          wanderers[leadernumber] = this;
          leader = true;
        };
      };

      if (y > 0 && y < height && x > 0 && x < width) {
        int point = (y * width) + x;
        if (grid[point] != -1 && wanderers[grid[point]].thecolor != thecolor) {
          battle(this, wanderers[grid[point]]);
        }
        else {
          grid[point] = id;
        };
      };
   

  };

  void display() {
    if (leader) {
      tpoint(x,y,thecolor,0.33);
    }
    else {
      tpoint(x,y,thecolor,0.001);
    };
  };
  void die() {
    alive = false;
    wanderers[leadernumber].xv *= 0.9;
    wanderers[leadernumber].yv *= 0.9;
  };
};