/*
https://github.com/peterix/dfhack
Copyright (c) 2009-2011 Petr Mrázek (peterix@gmail.com)
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must
not claim that you wrote the original software. If you use this
software in a product, an acknowledgment in the product documentation
would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#pragma once
#include "Pragma.h"
#include "Export.h"
#include "DataDefs.h"
#include "df/tiletype.h"
namespace DFHack
{
//Mainly walls and rivers
//Byte values are used because walls can have either 1 or 2 in any given direction.
const int TileDirectionCount = 4;
union TileDirection
{
uint32_t whole;
unsigned char b[TileDirectionCount];
struct
{
//Maybe should add 'up' and 'down' for Z-levels?
unsigned char north,south,west,east;
};
inline TileDirection()
{
whole = 0;
}
TileDirection( uint32_t whole_bits)
{
whole = whole_bits;
}
bool operator== (const TileDirection &other) const
{
return whole == other.whole;
}
bool operator!= (const TileDirection &other) const
{
return whole != other.whole;
}
operator bool() const
{
return whole != 0;
}
TileDirection( unsigned char North, unsigned char South, unsigned char West, unsigned char East )
{
north=North; south=South; east=East; west=West;
}
TileDirection( const char *dir )
{
//This one just made for fun.
//Supports N S E W
const char *p = dir;
unsigned char *l=0;
north=south=east=west=0;
if(!dir) return;
for( ;*p;++p)
{
switch(*p)
{
case 'N': //North / Up
case 'n':
++north; l=&north; break;
case 'S': //South / Down
case 's':
++south; l=&south; break;
case 'E': //East / Right
case 'e':
++east; l=&east; break;
case 'W': //West / Left
case 'w':
++west; l=&west; break;
case '-':
case ' ':
//Explicitly ensure dash and space are ignored.
//Other characters/symbols may be assigned in the future.
break;
default:
if( l && '0' <= *p && '9' >= *p )
*l += *p - '0';
break;
}
}
}
//may be useful for some situations
inline uint32_t sum() const
{
return 0L + north + south + east + west;
}
//Gives a string that represents the direction.
//This is a static string, overwritten with every call!
//Support values > 2 even though they should never happen.
//Copy string if it will be used.
inline char * getStr() const
{
static char str[16];
//type punning trick
*( (uint64_t *)str ) = *( (uint64_t *)"--------" );
str[8]=0;
#define DIRECTION(x,i,c) \
if(x){ \
str[i]=c; \
if(1==x) ; \
else if(2==x) str[i+1]=c; \
else str[i+1]='0'+x; \
}
DIRECTION(north,0,'N')
DIRECTION(south,2,'S')
DIRECTION(west,4,'W')
DIRECTION(east,6,'E')
#undef DIRECTION
return str;
}
};
using namespace df::enums;
inline
const char * tileName(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype, caption, tiletype);
}
inline
df::tiletype_shape tileShape(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype, shape, tiletype);
}
inline
df::tiletype_special tileSpecial(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype, special, tiletype);
}
inline
df::tiletype_variant tileVariant(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype, variant, tiletype);
}
inline
df::tiletype_material tileMaterial(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype, material, tiletype);
}
inline
TileDirection tileDirection(df::tiletype tiletype)
{
return TileDirection(ENUM_ATTR(tiletype, direction, tiletype));
}
// tile is missing a floor
inline
bool LowPassable(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, passable_low, tileShape(tiletype));
}
// tile is missing a roof
inline
bool HighPassable(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, passable_high, tileShape(tiletype));
}
inline
bool FlowPassable(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, passable_flow, tileShape(tiletype));
}
inline
bool isWallTerrain(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, basic_shape, tileShape(tiletype)) == tiletype_shape_basic::Wall;
}
inline
bool isFloorTerrain(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, basic_shape, tileShape(tiletype)) == tiletype_shape_basic::Floor;
}
inline
bool isRampTerrain(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, basic_shape, tileShape(tiletype)) == tiletype_shape_basic::Ramp;
}
inline
bool isOpenTerrain(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, basic_shape, tileShape(tiletype)) == tiletype_shape_basic::Open;
}
inline
bool isStairTerrain(df::tiletype tiletype)
{
return ENUM_ATTR(tiletype_shape, basic_shape, tileShape(tiletype)) == tiletype_shape_basic::Stair;
}
/**
* zilpin: Find the first tile entry which matches the given search criteria.
* All parameters are optional.
* To omit, specify NONE for that type
* For tile directions, pass NULL to omit.
* @return matching index in tileTypeTable, or 0 if none found.
*/
inline
df::tiletype findTileType(const df::tiletype_shape tshape, const df::tiletype_material tmat, const df::tiletype_variant tvar, const df::tiletype_special tspecial, const TileDirection tdir)
{
FOR_ENUM_ITEMS(tiletype, tt)
{
if (tshape != tiletype_shape::NONE && tshape != tileShape(tt))
continue;
if (tmat != tiletype_material::NONE && tmat != tileMaterial(tt))
continue;
// Don't require variant to match if the destination tile doesn't even have one
if (tvar != tiletype_variant::NONE && tvar != tileVariant(tt) && tileVariant(tt) != tiletype_variant::NONE)
continue;
// Same for special
if (tspecial != tiletype_special::NONE && tspecial != tileSpecial(tt) && tileSpecial(tt) != tiletype_special::NONE)
continue;
if (tdir && tdir != tileDirection(tt))
continue;
// Match!
return tt;
}
return tiletype::Void;
}
/**
* zilpin: Find a tile type similar to the one given, but with a different class.
* Useful for tile-editing operations.
* If no match found, returns the sourceType
*
* @todo Definitely needs improvement for wall directions, etc.
*/
DFHACK_EXPORT df::tiletype findSimilarTileType( const df::tiletype sourceTileType, const df::tiletype_shape tshape );
/**
* Finds a random variant of the selected tile
* If there are no variants, returns the same tile
*/
DFHACK_EXPORT df::tiletype findRandomVariant(const df::tiletype tile);
}