UltimateZoneBuilder/Source/Plugins/vpo_dll/vpo_api.h
MaxED 20bb7fd119 GZDoom Builder 1.07
Updated to Doom Builder 2 SVN rev. 1549.
2012-06-01 19:53:14 +00:00

84 lines
3.2 KiB
C

//------------------------------------------------------------------------
// Visplane Overflow Library
//------------------------------------------------------------------------
//
// Copyright (C) 1993-1996 Id Software, Inc.
// Copyright (C) 2005 Simon Howard
// Copyright (C) 2012 Andrew Apted
//
// This program 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.
//
// This program 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.
//
//------------------------------------------------------------------------
#ifndef __VPO_API_H__
#define __VPO_API_H__
// return error message when something fails
// (this will be a static buffer, so is not guaranteed to remain valid
// after any other API call)
const char* APIENTRY VPO_GetError(void);
// try to load a wad file
// returns 0 on success, negative value on error
int APIENTRY VPO_LoadWAD(const char *wad_filename);
// free all data associated with the wad file
// can be safely called without any loaded wad file
void APIENTRY VPO_FreeWAD(void);
// retrieve the map names in the wad, one at a time
// index starts at 0
// returns NULL when index is past the end of the list
// NOTE: return pointer may be a static buffer, not guaranteed to
// remain valid once this function is called again
const char* APIENTRY VPO_GetMapName(unsigned int index);
// try to open a map from the current wad file
// returns 0 on success, negative value on error
int APIENTRY VPO_OpenMap(const char *map_name);
// free all data associated with a map
// can be safely called without any opened map
void APIENTRY VPO_CloseMap(void);
// retrieve the linedefs in the current map, one at a time
// index starts at 0
// returns number of sides (0 to 2), or -1 for invalid index
int APIENTRY VPO_GetLinedef(unsigned int index, int *x1, int *y1, int *x2, int *y2);
// test a spot and angle, returning the number of visplanes
// dz is the height above the floor (or offset from ceiling if < 0)
// angle is in degrees (0 to 360), 0 is east, 90 is north
// returns RESULT_OK on success, or a negative value spot was in the
// void or an error occurred -- see the RESULT_* values below
//
// the num_xxx parameters point to variables which get _updated_ by
// this call (i.e. new value is maximum of old value + checked value).
// hence you need to set those variables to zero before the first
// call at a particular (X Y) location.
//
// RESULT_OVERFLOW means that an internal limit overflowed (which are
// four times or more the actual DOOM limits).
#define RESULT_OK 0
#define RESULT_BAD_Z -1
#define RESULT_IN_VOID -2
#define RESULT_OVERFLOW -3
int APIENTRY VPO_TestSpot(int x, int y, int dz, int angle,
int *num_visplanes,
int *num_drawsegs,
int *num_openings,
int *num_solidsegs);
#endif /* __VPO_API_H__ */