///////////////////////////////////////////////////////////
////// Released under the GPL
////// see gpl.txt
////// Written by and copyrighted by:
//////    Michael Gibson
//////    (c)2003, 2004, 2006, 2007
///////////////////////////////////////////////////////////

///////////////////////////////
// attack_possible
///////////////////////////////
int attack_possible(int player_1_x, int player_1_y, int player_1_exp, int player_1_wep, 
                    int player_2_x, int player_2_y, int player_2_charm){

  // player 1 attacking player 2
  // is it possible?

  int return_value=0;                                          //default is 0 false
                                                               // 0 out of range
                                                               // 1 is possible;
                                                               // 2 possible/limited
                                                               // 3 not possible (spell);

  int x_diff;                                                  //difference between the two players x cord
  int y_diff;                                                  //difference between the two players y cord

  x_diff = player_1_x - player_2_x;
  y_diff = player_1_y - player_2_y;

  if(player_1_wep >= 1 && player_1_wep <= 5){                  //if player 1 has hand to hand weapon
    if(x_diff <=1 && x_diff >= -1){                            //if standing close enough...
      if(y_diff <=1 && y_diff >= -1){
        return_value=1;                                        //then player 1 can attack player 2
      }
    }
    if(player_2_charm==1){                                     //is player you are attacking charmed?
      if(player_1_exp <= 30){                                  //does player 1 have enough experiance to attack a
                                                               //charmed person?
        return_value=3;                                        //no if not more than 30 experiance points
      }                                                        //end exp check
    }                                                          //end charmed check
  }                                                            //end of hand to hand check

  if(player_1_wep >=6 && player_1_wep <= 9){                   //if player 1 has projection weapon
    if(x_diff <=3 && x_diff >= -3){                            //if standing close enough...
      if(y_diff <=3 && y_diff >= -3){
        return_value=1;                                        //then player 1 can attack player 2
      }
    }

    if(x_diff == 4 ){                                          //if standing 'just' close enough and only 
      if(y_diff == 4 ){                                        //to one side
        return_value=2;                                        //then player 1 can attack player 2 (but limited)
      }                                                        //just as this spot is.
    }

  }                                                            //end of projection check
  


  return(return_value);

}

////////////////////////////////////
// attack_success
///////////////////////////////////
// this funtion returns if the player actually
// hit the other player

int attack_success(int player_1_dex, int player_1_adj_dex, int *player_1_wep_wear, int *player_1_exp, int player_2_dex, int player_2_total_armor){

  int return_value=0;                                          //simply returns 0 or 1 for failure or success
  int chance;
  int player_1_true_dex;

  player_1_true_dex= player_1_dex - player_1_adj_dex;          //calculate player 1 true dex due to weapon.

  chance = rand()/((double)40 + 1);                            //calculate chance random number between 0-40

  chance = chance + (player_1_true_dex - 5) - player_2_dex;    //take into consideration players ability
  chance = chance - player_2_total_armor;                      //take into consideration player 2 armor


  if(chance >= 1) return_value=1;                              //attack is a success damage occured to other
  else return_value=0;                                         //player failed to do damage to other

  if(return_value==1){
    *player_1_wep_wear = *player_1_wep_wear - 1;               //successfull use of weapon, account for wear
    *player_1_exp = *player_1_exp + 1;                         //increase experiance 1 unit for successful hit
  }

  return(return_value);

}