warzone2100/src/geometry.h

72 lines
2.0 KiB
C

/*
This file is part of Warzone 2100.
Copyright (C) 1999-2004 Eidos Interactive
Copyright (C) 2005-2013 Warzone 2100 Project
Warzone 2100 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; either version 2 of the License, or
(at your option) any later version.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __INCLUDED_SRC_GEOMETRY_H__
#define __INCLUDED_SRC_GEOMETRY_H__
#include "map.h"
#include "hci.h"
struct QUAD
{
Vector2i coords[4];
};
extern uint16_t calcDirection(int32_t x0, int32_t y0, int32_t x1, int32_t y1);
bool inQuad(const Vector2i *pt, const QUAD *quad);
Vector2i positionInQuad(Vector2i const &pt, QUAD const &quad);
extern DROID *getNearestDroid( UDWORD x, UDWORD y, bool bSelected );
extern bool droidOnScreen( DROID *psDroid, SDWORD tolerance );
static inline STRUCTURE *getTileStructure(UDWORD x, UDWORD y)
{
BASE_OBJECT * psObj = mapTile(x,y)->psObject;
if (psObj && psObj->type == OBJ_STRUCTURE)
{
return (STRUCTURE *)psObj;
}
return NULL;
}
static inline FEATURE *getTileFeature(UDWORD x, UDWORD y)
{
BASE_OBJECT * psObj = mapTile(x,y)->psObject;
if (psObj && psObj->type == OBJ_FEATURE)
{
return (FEATURE *)psObj;
}
return NULL;
}
/// WARNING: Returns NULL if tile not visible to selectedPlayer.
static inline BASE_OBJECT *getTileOccupier(UDWORD x, UDWORD y)
{
MAPTILE *psTile = mapTile(x,y);
if (TEST_TILE_VISIBLE(selectedPlayer, psTile))
{
return mapTile(x,y)->psObject;
} else {
return NULL;
}
}
#endif // __INCLUDED_SRC_GEOMETRY_H__