/// spawn_unit(unit_ID, side)

/*  This script acts as a CENTRALIZED method to spawn units.
    The first number spawns a different unit type based on the number
    0 = Soldier
    1 = Militia
    2
    3
    4
    ...

    The second number defines what side it's on.
    0 = player side (bottom)
    1 = enemy side (top)
*/

var unit_ID = argument0;
var side = argument1;
var unit_type;

// Get the type of unit to be spawned
switch(unit_ID)
{
  case 0: unit_type = obj_soldier; break;
  //case 1: unit_type = obj_militia; break;
  //case 2: unit_type = obj_cooldude; break;
  //case 3: unit_type = ...

  default: game_error("Spawned a unit with an ID that doesn't exist (" + string(unit_ID) + ")");
}

// Get the position that he's spawned at
var X, Y;
if(side == 0 || side == 1)
{
  var buffer = 50; // Just an arbitrary number to keep the units from spawning on the edge of the room.
  X = random(room_width - (buffer*2)) + buffer;

  if(side == 0){Y = room_height + 32};
  if(side == 1){Y = 0 - 32};
}
else
  game_error("Spawned a unit to an invalid side (" + string(side) + ")");

// Now spawn the unit
var unit = instance_create(X, Y, unit_type);
unit.team = side;