55 lines
1.8 KiB
C
55 lines
1.8 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
|
|
*/
|
|
/** @file
|
|
* Raycaster functions
|
|
*/
|
|
|
|
#ifndef __INCLUDED_SRC_RAYCAST_H__
|
|
#define __INCLUDED_SRC_RAYCAST_H__
|
|
|
|
#include "lib/framework/vector.h"
|
|
|
|
|
|
/*!
|
|
* The raycast intersection callback.
|
|
* \param pos Current position
|
|
* \param dist Current distance from start
|
|
* \param data Payload (store intermediate results here)
|
|
* \return true if ore points are required, false otherwise
|
|
*/
|
|
typedef bool (*RAY_CALLBACK)(Vector2i pos, int32_t dist, void* data);
|
|
|
|
|
|
/*!
|
|
* Cast a ray from a position into a certain direction
|
|
* \param src Position to cast from
|
|
* \param dst Position to cast to (casts to end of map, if dst is off the map)
|
|
* \param callback Callback to call for each passed tile
|
|
* \param data Data to pass through to the callback
|
|
*/
|
|
void rayCast(Vector2i src, Vector2i dst, RAY_CALLBACK callback, void *data);
|
|
|
|
|
|
// Calculates the maximum height and distance found along a line from any
|
|
// point to the edge of the grid
|
|
extern void getBestPitchToEdgeOfGrid(UDWORD x, UDWORD y, uint16_t direction, uint16_t *pitch);
|
|
|
|
#endif // __INCLUDED_SRC_RAYCAST_H__
|