object_map.h

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */
 
#ifndef OBJECT_MAP_H
#define OBJECT_MAP_H
 
#include "water_map.h"
#include "object_type.h"
 
ObjectType GetObjectType(Tile t);
 
inline bool IsObjectType(Tile t, ObjectType type)
{
  return GetObjectType(t) == type;
}
 
inline bool IsObjectTypeTile(Tile t, ObjectType type)
{
  return IsTileType(t, MP_OBJECT) && GetObjectType(t) == type;
}
 
inline ObjectID GetObjectIndex(Tile t)
{
  assert(IsTileType(t, MP_OBJECT));
  return ObjectID(t.m2() | t.m5() << 16);
}
 
inline uint8_t GetObjectRandomBits(Tile t)
{
  assert(IsTileType(t, MP_OBJECT));
  return t.m3();
}
 
 
inline void MakeObject(Tile t, Owner o, ObjectID index, WaterClass wc, uint8_t random)
{
  SetTileType(t, MP_OBJECT);
  SetTileOwner(t, o);
  SetWaterClass(t, wc);
  t.m2() = index.base();
  t.m3() = random;
  t.m4() = 0;
  t.m5() = index.base() >> 16;
  SB(t.m6(), 2, 6, 0);
  t.m7() = 0;
  t.m8() = 0;
}
 
#endif /* OBJECT_MAP_H */