/// <summary>
/// Check if unit may transfer strength to unit (if not NULL) or create
/// a stand alone unit (if unit NULL) on the coordinates.
/// </summary>
/// <param name="unit"></param>
/// <param name="str"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="dest"></param>
/// <returns></returns>
public bool map_check_unit_split (Unit unit, int str, int x, int y, Unit dest)
{
if (unit.str - str < 4)
return false;
if (dest != null) {
int old_str;
bool ret;
old_str = unit.str;
unit.str = str;
ret = unit.CheckMerge (dest); /* is equal for now */
unit.str = old_str;
return ret;
} else {
if (str < 4)
return false;
if (!Misc.is_close (unit.x, unit.y, x, y))
return false;
if (((unit.sel_prop.flags & UnitFlags.FLYING) == UnitFlags.FLYING) && map [x, y].a_unit != null)
return false;
if (((unit.sel_prop.flags & UnitFlags.FLYING) != UnitFlags.FLYING) && map [x, y].g_unit != null)
return false;
if (Terrain.GetMovementCost (map [x, y].terrain, unit.sel_prop.mov_type, Scenario.cur_weather) == 0)
return false;
}
return true;
}
public void map_get_merge_units (Unit unit, out Unit[] partners, out int count)
{
Unit partner;
int i, next_x, next_y;
count = 0;
map_clear_mask (MAP_MASK.F_MERGE_UNIT);
partners = new Unit[MAP_MERGE_UNIT_LIMIT];
/* check surrounding tiles */
for (i = 0; i < 6; i++)
if (Misc.get_close_hex_pos (unit.x, unit.y, i, out next_x, out next_y)) {
partner = null;
if (map [next_x, next_y].g_unit != null && unit.CheckMerge (map [next_x, next_y].g_unit))
partner = map [next_x, next_y].g_unit;
else if (map [next_x, next_y].a_unit != null && unit.CheckMerge (map [next_x, next_y].a_unit))
partner = map [next_x, next_y].a_unit;
if (partner != null) {
partners [(count)++] = partner;
mask [next_x, next_y].merge_unit = partner;
}
}
}
