/
dd_share.h
1832 lines (1605 loc) · 51.7 KB
/
dd_share.h
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/**
* @file dd_share.h
* Shared macros and constants.
*
* Various macros and constants used by the engine and games.
*
* @authors Copyright © 2003-2012 Jaakko Keränen <jaakko.keranen@iki.fi>
* @authors Copyright © 2006-2012 Daniel Swanson <danij@dengine.net>
*
* @par License
* GPL: http://www.gnu.org/licenses/gpl.html
*
* <small>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. You should have received a copy of the GNU
* General Public License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA</small>
*/
#ifndef LIBDENG_SHARED_H
#define LIBDENG_SHARED_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* @def C_DECL
* Calling convention for compare functions. Only for Windows.
*/
#ifndef C_DECL
# if defined(WIN32)
# define C_DECL __cdecl
# elif defined(UNIX)
# define C_DECL
# else
# define C_DECL
# endif
#endif
#include <stdlib.h>
#include <stdarg.h>
#include "dengproject.h"
#include "../portable/include/dd_version.h"
#include "dd_types.h"
#include "dd_maptypes.h"
#include "dd_wad.h"
#include "dd_gl.h"
#include "dd_ui.h"
#include "dd_infine.h"
#include "def_share.h"
#include "busytask.h"
#include "thinker.h"
/** @file
* @todo dd_version.h is not officially a public header file!
*/
//------------------------------------------------------------------------
//
// General Definitions and Macros
//
//------------------------------------------------------------------------
/// @defgroup apiFlags Flags
/// Maximum number of players supported by the engine.
#define DDMAXPLAYERS 16
/// Base default paths for data files.
#define DD_BASEPATH_DATA "}data/"
/// Base default paths for definition files.
#define DD_BASEPATH_DEFS "}defs/"
// The case-independent strcmps have different names.
#if WIN32
# define strcasecmp _stricmp
# define strncasecmp _strnicmp
# define strlwr _strlwr
#endif
#if UNIX
# define stricmp strcasecmp
# define strnicmp strncasecmp
/**
* There are manual implementations for these string handling routines:
*/
char* strupr(char *string);
char* strlwr(char *string);
#endif
int dd_snprintf(char* str, size_t size, const char* format, ...);
int dd_vsnprintf(char* str, size_t size, const char* format,
va_list ap);
// Format checking for printf-like functions in GCC2
#if defined(__GNUC__) && __GNUC__ >= 2
# define PRINTF_F(f,v) __attribute__ ((format (printf, f, v)))
#else
# define PRINTF_F(f,v)
#endif
/**
* Macro for hiding the warning about an unused parameter.
*/
#define DENG_UNUSED(x) (void)x
int16_t ShortSwap(int16_t);
int32_t LongSwap(int32_t);
float FloatSwap(float);
#ifdef __BIG_ENDIAN__
#define SHORT(x) ShortSwap(x)
#define LONG(x) LongSwap(x)
#define FLOAT(x) FloatSwap(x)
#define BIGSHORT(x) (x)
#define BIGLONG(x) (x)
#define BIGFLOAT(x) (x)
// In these, x is evaluated multiple times, so increments and decrements
// cannot be used.
#define MACRO_SHORT(x) ((int16_t)(( ((int16_t)(x)) & 0xff ) << 8) | (( ((int16_t)(x)) & 0xff00) >> 8))
#define MACRO_LONG(x) ((int32_t)((( ((int32_t)(x)) & 0xff) << 24) | (( ((int32_t)(x)) & 0xff00) << 8) | \
(( ((int32_t)(x)) & 0xff0000) >> 8) | (( ((int32_t)(x)) & 0xff000000) >> 24) ))
#else
/// Byte order conversion from native to little-endian. @{
#define SHORT(x) (x)
#define LONG(x) (x)
#define FLOAT(x) (x)
///@}
/// Byte order conversion from native to big-endian. @{
#define BIGSHORT(x) ShortSwap(x)
#define BIGLONG(x) LongSwap(x)
#define BIGFLOAT(x) FloatSwap(x)
///@}
#define MACRO_SHORT(x) (x)
#define MACRO_LONG(x) (x)
#endif
/// Byte order conversion from native to little-endian. @{
#define USHORT(x) ((uint16_t) SHORT(x))
#define ULONG(x) ((uint32_t) LONG(x))
///@}
/// Value types.
typedef enum {
DDVT_NONE = -1, ///< Not a read/writeable value type.
DDVT_BOOL,
DDVT_BYTE,
DDVT_SHORT,
DDVT_INT, ///< 32 or 64 bit
DDVT_UINT,
DDVT_FIXED,
DDVT_ANGLE,
DDVT_FLOAT,
DDVT_DOUBLE,
DDVT_LONG,
DDVT_ULONG,
DDVT_PTR,
DDVT_BLENDMODE
} valuetype_t;
/// Integer values for Set/Get
enum {
DD_FIRST_VALUE = -1,
DD_NETGAME,
DD_SERVER,
DD_CLIENT,
DD_ALLOW_FRAMES,
DD_CONSOLEPLAYER,
DD_DISPLAYPLAYER,
DD_MIPMAPPING,
DD_SMOOTH_IMAGES,
DD_DEFAULT_RES_X,
DD_DEFAULT_RES_Y,
DD_UNUSED1,
DD_MOUSE_INVERSE_Y,
DD_FULLBRIGHT, ///< Render everything fullbright?
DD_CCMD_RETURN,
DD_GAME_READY,
DD_DEDICATED,
DD_NOVIDEO,
DD_NUMMOBJTYPES,
DD_GOTFRAME,
DD_PLAYBACK,
DD_NUMSOUNDS,
DD_NUMMUSIC,
DD_NUMLUMPS,
DD_CLIENT_PAUSED,
DD_WEAPON_OFFSET_SCALE_Y, ///< 1000x
DD_MONOCHROME_PATCHES, ///< Convert patch image data to monochrome. 1= linear 2= weighted.
DD_GAME_DATA_FORMAT,
DD_GAME_DRAW_HUD_HINT, ///< Doomsday advises not to draw the HUD.
DD_UPSCALE_AND_SHARPEN_PATCHES,
DD_SYMBOLIC_ECHO,
DD_MAX_TEXTURE_UNITS,
DD_CURRENT_CLIENT_FINALE_ID,
DD_LAST_VALUE
};
/// General constants (not to be used with Get/Set).
enum {
DD_NEW = -2,
DD_SKY = -1,
DD_DISABLE,
DD_ENABLE,
DD_MASK,
DD_YES,
DD_NO,
DD_MATERIAL,
DD_OFFSET,
DD_HEIGHT,
DD_UNUSED2,
DD_UNUSED3,
DD_COLOR_LIMIT,
DD_PRE,
DD_POST,
DD_PLUGIN_VERSION_SHORT,
DD_PLUGIN_VERSION_LONG,
DD_HORIZON,
DD_OLD_GAME_ID,
DD_DEF_MOBJ,
DD_DEF_MOBJ_BY_NAME,
DD_DEF_STATE,
DD_DEF_SPRITE,
DD_DEF_SOUND,
DD_DEF_MUSIC,
DD_DEF_MAP_INFO,
DD_DEF_TEXT,
DD_DEF_VALUE,
DD_DEF_LINE_TYPE,
DD_DEF_SECTOR_TYPE,
DD_PSPRITE_BOB_X,
DD_PSPRITE_BOB_Y,
DD_DEF_FINALE_AFTER,
DD_DEF_FINALE_BEFORE,
DD_DEF_FINALE,
DD_RENDER_RESTART_PRE,
DD_RENDER_RESTART_POST,
DD_DEF_SOUND_BY_NAME,
DD_DEF_SOUND_LUMPNAME,
DD_ID,
DD_LUMP,
DD_CD_TRACK,
DD_SPRITE,
DD_FRAME,
DD_GAME_CONFIG, ///< String: dm/co-op, jumping, etc.
DD_PLUGIN_NAME, ///< (e.g., jdoom, jheretic etc..., suitable for use with filepaths)
DD_PLUGIN_NICENAME, ///< (e.g., jDoom, MyGame:Episode2 etc..., fancy name)
DD_PLUGIN_HOMEURL,
DD_PLUGIN_DOCSURL,
DD_DMU_VERSION, ///< Used in the exchange of DMU API versions.
// Non-integer/special values for Set/Get
DD_TRANSLATIONTABLES_ADDRESS,
DD_TRACE_ADDRESS, ///< obsolete divline 'trace' used by PathTraverse.
DD_SPRITE_REPLACEMENT, ///< Sprite <-> model replacement.
DD_ACTION_LINK, ///< State action routine addresses.
DD_MAP_NAME,
DD_MAP_AUTHOR,
DD_MAP_MUSIC,
DD_MAP_MIN_X,
DD_MAP_MIN_Y,
DD_MAP_MAX_X,
DD_MAP_MAX_Y,
DD_WINDOW_WIDTH,
DD_WINDOW_HEIGHT,
DD_WINDOW_HANDLE,
DD_DYNLIGHT_TEXTURE,
DD_GAME_EXPORTS,
DD_SECTOR_COUNT,
DD_LINE_COUNT,
DD_SIDE_COUNT,
DD_VERTEX_COUNT,
DD_HEDGE_COUNT,
DD_BSPLEAF_COUNT,
DD_BSPNODE_COUNT,
DD_POLYOBJ_COUNT,
DD_XGFUNC_LINK, ///< XG line classes
DD_SHARED_FIXED_TRIGGER_OBSOLETE, ///< obsolete
DD_GAMETIC,
DD_OPENRANGE, ///< obsolete
DD_OPENTOP, ///< obsolete
DD_OPENBOTTOM, ///< obsolete
DD_LOWFLOOR, ///< obsolete
DD_CPLAYER_THRUST_MUL_OBSOLETE, ///< obsolete
DD_GRAVITY,
DD_PSPRITE_OFFSET_X, ///< 10x
DD_PSPRITE_OFFSET_Y, ///< 10x
DD_PSPRITE_LIGHTLEVEL_MULTIPLIER,
DD_TORCH_RED,
DD_TORCH_GREEN,
DD_TORCH_BLUE,
DD_TORCH_ADDITIVE,
DD_TM_FLOOR_Z, ///< output from P_CheckPosition
DD_TM_CEILING_Z, ///< output from P_CheckPosition
DD_SHIFT_DOWN
};
/// Bounding box coordinates.
enum {
BOXTOP = 0,
BOXBOTTOM = 1,
BOXLEFT = 2,
BOXRIGHT = 3,
BOXFLOOR = 4,
BOXCEILING = 5
};
//------------------------------------------------------------------------
//
// Games
//
//------------------------------------------------------------------------
/**
* @defgroup game Game
*/
/**
* Defines the numerous high-level properties of a logical game component.
* Note that this is POD; no construction or destruction is needed.
* @see DD_DefineGame() @ingroup game
*/
typedef struct gamedef_s {
/**
* Unique game mode key/identifier, 16 chars max (e.g., "doom1-ultimate").
* - Used during resource location for mode-specific assets.
* - Sent out in netgames (a client can't connect unless mode strings match).
*/
const char* identityKey;
/// The base directory for all data-class resources.
const char* dataPath;
/// The base directory for all defs-class resources.
const char* defsPath;
/// Name of the config directory.
const char* configDir;
/// Default title. May be overridden later.
const char* defaultTitle;
/// Default author. May be overridden later.
/// Used for (e.g.) the map author name if not specified in a Map Info definition.
const char* defaultAuthor;
} GameDef;
/**
* Extended info about a registered game component.
* @see DD_GameInfo() @ingroup game
*/
typedef struct gameinfo_s {
const char* title;
const char* author;
const char* identityKey;
} GameInfo;
/**
* @defgroup resourceFlags Resource Flags
* @ingroup apiFlags resource
*/
///@{
#define RF_STARTUP 0x1 ///< A required resource needed for and loaded during game start up (can't be a virtual file).
#define RF_FOUND 0x2 ///< Resource has been located.
///@}
/**
* @defgroup math Math Routines
* @ingroup base
*/
///@{
#define FRACBITS 16
#define FRACUNIT (1<<FRACBITS)
#define FRACEPSILON (1.0f/65535.f) // ~ 1.5e-5
#define FLOATEPSILON .000001f
/**
* Used to replace /255 as *reciprocal255 is less expensive with CPU cycles.
* Note that this should err on the side of being < 1/255 to prevent result
* exceeding 255 (e.g. 255 * reciprocal255).
*/
#define reciprocal255 0.003921568627f
#define FINEANGLES 8192
#define FINEMASK (FINEANGLES-1)
#define ANGLETOFINESHIFT 19 ///< Shifts 0x100000000 to 0x2000.
#define ANGLE_45 0x20000000
#define ANGLE_90 0x40000000
#define ANGLE_180 0x80000000
#define ANGLE_MAX 0xffffffff
#define ANGLE_1 (ANGLE_45/45)
#define ANGLE_60 (ANGLE_180/3)
#define ANG45 0x20000000
#define ANG90 0x40000000
#define ANG180 0x80000000
#define ANG270 0xc0000000
#define FIX2FLT(x) ( (x) / (float) FRACUNIT )
#define Q_FIX2FLT(x) ( (float)((x)>>FRACBITS) )
#define FLT2FIX(x) ( (fixed_t) ((x)*FRACUNIT) )
#if !defined( DENG_NO_FIXED_ASM ) && !defined( GNU_X86_FIXED_ASM )
__inline fixed_t FixedMul(fixed_t a, fixed_t b) {
__asm {
// The parameters in eax and ebx.
mov eax, a
mov ebx, b
// The multiplying.
imul ebx
shrd eax, edx, 16
// eax should hold the return value.
}
// A value is returned regardless of the compiler warning.
}
__inline fixed_t FixedDiv2(fixed_t a, fixed_t b) {
__asm {
// The parameters.
mov eax, a
mov ebx, b
// The operation.
cdq
shld edx, eax, 16
sal eax, 16
idiv ebx
// And the value returns in eax.
}
// A value is returned regardless of the compiler warning.
}
#else
// Don't use inline assembler in fixed-point calculations.
// (link with plugins/common/m_fixed.c)
fixed_t FixedMul(fixed_t a, fixed_t b);
fixed_t FixedDiv2(fixed_t a, fixed_t b);
#endif
// This one is always in plugins/common/m_fixed.c.
fixed_t FixedDiv(fixed_t a, fixed_t b);
///@}
//------------------------------------------------------------------------
//
// Key Codes
//
//------------------------------------------------------------------------
/// @defgroup input Input
/**
* @defgroup keyConstants Key Constants
* @ingroup input
* Most key data is regular ASCII so key constants correspond to ASCII codes.
*/
///@{
#define DDKEY_ESCAPE 27
#define DDKEY_RETURN 13
#define DDKEY_TAB 9
#define DDKEY_BACKSPACE 127
#define DDKEY_EQUALS 0x3d
#define DDKEY_MINUS 0x2d
#define DDKEY_BACKSLASH 0x5C
// Extended keys (above 127).
enum {
DDKEY_RIGHTARROW = 0x80,
DDKEY_LEFTARROW,
DDKEY_UPARROW,
DDKEY_DOWNARROW,
DDKEY_F1,
DDKEY_F2,
DDKEY_F3,
DDKEY_F4,
DDKEY_F5,
DDKEY_F6,
DDKEY_F7,
DDKEY_F8,
DDKEY_F9,
DDKEY_F10,
DDKEY_F11,
DDKEY_F12,
DDKEY_NUMLOCK,
DDKEY_CAPSLOCK,
DDKEY_SCROLL,
DDKEY_NUMPAD7,
DDKEY_NUMPAD8,
DDKEY_NUMPAD9,
DDKEY_NUMPAD4,
DDKEY_NUMPAD5,
DDKEY_NUMPAD6,
DDKEY_NUMPAD1,
DDKEY_NUMPAD2,
DDKEY_NUMPAD3,
DDKEY_NUMPAD0,
DDKEY_DECIMAL,
DDKEY_PAUSE,
DDKEY_RSHIFT,
DDKEY_LSHIFT = DDKEY_RSHIFT,
DDKEY_RCTRL,
DDKEY_LCTRL = DDKEY_RCTRL,
DDKEY_RALT,
DDKEY_LALT = DDKEY_RALT,
DDKEY_INS,
DDKEY_DEL,
DDKEY_PGUP,
DDKEY_PGDN,
DDKEY_HOME,
DDKEY_END,
DDKEY_SUBTRACT, ///< '-' on numeric keypad.
DDKEY_ADD, ///< '+' on numeric keypad.
DDKEY_PRINT,
DDKEY_ENTER, ///< on the numeric keypad.
DDKEY_DIVIDE, ///< '/' on numeric keypad.
DDKEY_MULTIPLY, ///< '*' on the numeric keypad.
DDKEY_SECTION, ///< §
DD_HIGHEST_KEYCODE
};
///@}
//------------------------------------------------------------------------
//
// Events
//
//------------------------------------------------------------------------
/// Event types. @ingroup input
typedef enum {
EV_KEY,
EV_MOUSE_AXIS,
EV_MOUSE_BUTTON,
EV_JOY_AXIS, ///< Joystick main axes (xyz + Rxyz).
EV_JOY_SLIDER, ///< Joystick sliders.
EV_JOY_BUTTON,
EV_POV,
EV_SYMBOLIC, ///< Symbol text pointed to by data1+data2.
EV_FOCUS, ///< Change in game window focus (data1=gained, data2=windowID).
NUM_EVENT_TYPES
} evtype_t;
/// Event states. @ingroup input
typedef enum {
EVS_DOWN,
EVS_UP,
EVS_REPEAT,
NUM_EVENT_STATES
} evstate_t;
/// Input event. @ingroup input
typedef struct event_s {
evtype_t type;
evstate_t state; ///< Only used with digital controls.
int data1; ///< Keys/mouse/joystick buttons.
int data2; ///< Mouse/joystick x move.
int data3; ///< Mouse/joystick y move.
int data4;
int data5;
int data6;
} event_t;
/// The mouse wheel is considered two extra mouse buttons.
#define DD_MWHEEL_UP 3
#define DD_MWHEEL_DOWN 4
#define DD_MICKEY_ACCURACY 1000
//------------------------------------------------------------------------
//
// Map Data
//
//------------------------------------------------------------------------
/// @defgroup map Map Data
/**
* @defgroup dmu Map Update (DMU)
* @ingroup map
*/
///@{
/// Public DMU API version number. Requested by the engine during init. @ingroup dmu
#define DMUAPI_VER 1
/// Map Update constants. @ingroup dmu
enum {
// Do not change the numerical values of the constants!
/// Flag. OR'ed with a DMU property constant. Note: these use only the most
/// significant byte.
/// @{
DMU_FLAG_MASK = 0xff000000,
DMU_SIDEDEF1_OF_LINE = 0x80000000,
DMU_SIDEDEF0_OF_LINE = 0x40000000,
DMU_TOP_OF_SIDEDEF = 0x20000000,
DMU_MIDDLE_OF_SIDEDEF = 0x10000000,
DMU_BOTTOM_OF_SIDEDEF = 0x08000000,
DMU_FLOOR_OF_SECTOR = 0x04000000,
DMU_CEILING_OF_SECTOR = 0x02000000,
// (1 bits left)
///@}
DMU_NONE = 0,
DMU_VERTEX = 1,
DMU_HEDGE,
DMU_LINEDEF,
DMU_SIDEDEF,
DMU_BSPNODE,
DMU_BSPLEAF,
DMU_SECTOR,
DMU_PLANE,
DMU_SURFACE,
DMU_MATERIAL,
DMU_LINEDEF_BY_TAG,
DMU_SECTOR_BY_TAG,
DMU_LINEDEF_BY_ACT_TAG,
DMU_SECTOR_BY_ACT_TAG,
DMU_X,
DMU_Y,
DMU_XY,
DMU_TANGENT_X,
DMU_TANGENT_Y,
DMU_TANGENT_Z,
DMU_TANGENT_XYZ,
DMU_BITANGENT_X,
DMU_BITANGENT_Y,
DMU_BITANGENT_Z,
DMU_BITANGENT_XYZ,
DMU_NORMAL_X,
DMU_NORMAL_Y,
DMU_NORMAL_Z,
DMU_NORMAL_XYZ,
DMU_VERTEX0,
DMU_VERTEX1,
DMU_FRONT_SECTOR,
DMU_BACK_SECTOR,
DMU_SIDEDEF0,
DMU_SIDEDEF1,
DMU_FLAGS,
DMU_DX,
DMU_DY,
DMU_DXY,
DMU_LENGTH,
DMU_SLOPETYPE,
DMU_ANGLE,
DMU_OFFSET,
DMU_OFFSET_X,
DMU_OFFSET_Y,
DMU_OFFSET_XY,
DMU_VALID_COUNT,
DMU_LINEDEF_COUNT,
DMU_COLOR, ///< RGB
DMU_COLOR_RED, ///< red component
DMU_COLOR_GREEN, ///< green component
DMU_COLOR_BLUE, ///< blue component
DMU_ALPHA,
DMU_BLENDMODE,
DMU_LIGHT_LEVEL,
DMT_MOBJS, ///< pointer to start of sector mobjList
DMU_BOUNDING_BOX, ///< AABoxd
DMU_BASE,
DMU_WIDTH,
DMU_HEIGHT,
DMU_TARGET_HEIGHT,
DMU_SPEED,
DMU_HEDGE_COUNT,
DMU_FLOOR_PLANE,
DMU_CEILING_PLANE
};
/**
* @defgroup ldefFlags Linedef Flags
* @ingroup dmu apiFlags
* For use with P_Set/Get(DMU_LINEDEF, n, DMU_FLAGS).
*/
/// @addtogroup ldefFlags
///@{
#define DDLF_BLOCKING 0x0001
#define DDLF_DONTPEGTOP 0x0002
#define DDLF_DONTPEGBOTTOM 0x0004
///@}
/**
* @defgroup sdefFlags Sidedef Flags
* @ingroup dmu apiFlags
* For use with P_Set/Get(DMU_SIDEDEF, n, DMU_FLAGS).
*/
/// @addtogroup sdefFlags
///@{
#define SDF_BLENDTOPTOMID 0x0001
#define SDF_BLENDMIDTOTOP 0x0002
#define SDF_BLENDMIDTOBOTTOM 0x0004
#define SDF_BLENDBOTTOMTOMID 0x0008
#define SDF_MIDDLE_STRETCH 0x0010 ///< Stretch the middle surface to reach from floor to ceiling.
///@}
/**
* @defgroup sufFlags Surface Flags
* @ingroup dmu apiFlags
* For use with P_Set/Get(DMU_SURFACE, n, DMU_FLAGS).
*/
/// @addtogroup sufFlags
///@{
#define DDSUF_MATERIAL_FLIPH 0x00000001 ///< Surface material is flipped horizontally.
#define DDSUF_MATERIAL_FLIPV 0x00000002 ///< Surface material is flipped vertically.
///@}
/// Map Update status code constants. @ingroup dmu
/// Sent to the game when various map update events occur.
enum { /* Do NOT change the numerical values of the constants. */
DMUSC_LINE_FIRSTRENDERED
};
///@}
/// @ingroup mobj
#define DD_BASE_DDMOBJ_ELEMENTS() \
thinker_t thinker; /* thinker node */ \
coord_t origin[3]; /* origin [x,y,z] */
/**
* All map think-able objects must use this as a base. Also used for sound
* origin purposes for all of: mobj_t, Polyobj, Sector/Plane
* @ingroup mobj
*/
typedef struct ddmobj_base_s {
DD_BASE_DDMOBJ_ELEMENTS()
} ddmobj_base_t;
/// R_SetupMap() modes. @ingroup map
enum {
DDSMM_AFTER_LOADING, ///< After loading a savegame...
DDSMM_FINALIZE, ///< After everything else is done.
DDSMM_INITIALIZE, ///< Before anything else if done.
};
/// Sector reverb data indices. @ingroup map
enum {
SRD_VOLUME,
SRD_SPACE,
SRD_DECAY,
SRD_DAMPING,
NUM_REVERB_DATA
};
/// SideDef section indices. @ingroup map
typedef enum sidedefsection_e {
SS_MIDDLE,
SS_BOTTOM,
SS_TOP
} SideDefSection;
/// Helper macro for converting SideDefSection indices to their associated DMU flag. @ingroup map
#define DMU_FLAG_FOR_SIDEDEFSECTION(s) (\
(s) == SS_MIDDLE? DMU_MIDDLE_OF_SIDEDEF : \
(s) == SS_BOTTOM? DMU_BOTTOM_OF_SIDEDEF : DMU_TOP_OF_SIDEDEF)
typedef struct {
fixed_t origin[2];
fixed_t direction[2];
} divline_t;
typedef struct {
float origin[2];
float direction[2];
} fdivline_t;
/**
* @defgroup pathTraverseFlags Path Traverse Flags
* @ingroup apiFlags map
*/
///@{
#define PT_ADDLINES 1 ///< Intercept with LineDefs.
#define PT_ADDMOBJS 2 ///< Intercept with Mobjs.
///@}
/**
* @defgroup lineSightFlags Line Sight Flags
* Flags used to dictate logic within P_CheckLineSight().
* @ingroup apiFlags map
*/
///@{
#define LS_PASSLEFT 0x1 ///< Ray may cross one-sided linedefs from left to right.
#define LS_PASSOVER 0x2 ///< Ray may cross over sector ceiling height on ray-entry side.
#define LS_PASSUNDER 0x4 ///< Ray may cross under sector floor height on ray-entry side.
///@}
// For (un)linking.
#define DDLINK_SECTOR 0x1
#define DDLINK_BLOCKMAP 0x2
#define DDLINK_NOLINE 0x4
typedef enum intercepttype_e {
ICPT_MOBJ,
ICPT_LINE
} intercepttype_t;
typedef struct intercept_s {
float distance; // Along trace vector as a fraction.
intercepttype_t type;
union {
struct mobj_s* mobj;
struct linedef_s* lineDef;
} d;
} intercept_t;
typedef int (*traverser_t) (const intercept_t* intercept, void* paramaters);
/**
* A simple POD data structure for representing line trace openings.
*/
typedef struct {
/// Top and bottom z of the opening.
float top, bottom;
/// Distance from top to bottom.
float range;
/// Z height of the lowest Plane at the opening on the X|Y axis.
/// @todo Does not belong here?
float lowFloor;
} TraceOpening;
//------------------------------------------------------------------------
//
// Mobjs
//
//------------------------------------------------------------------------
/// @defgroup mobj Map Objects
/// @ingroup map
/**
* Linknodes are used when linking mobjs to lines. Each mobj has a ring
* of linknodes, each node pointing to a line the mobj has been linked to.
* Correspondingly each line has a ring of nodes, with pointers to the
* mobjs that are linked to that particular line. This way it is possible
* that a single mobj is linked simultaneously to multiple lines (which
* is common).
*
* All these rings are maintained by P_MobjLink() and P_MobjUnlink().
* @ingroup mobj
*/
typedef struct linknode_s {
nodeindex_t prev, next;
void* ptr;
int data;
} linknode_t;
/**
* @defgroup stateFlags State Flags
* @ingroup mobj
*/
///@{
#define STF_FULLBRIGHT 0x00000001
#define STF_NOAUTOLIGHT 0x00000002 ///< Don't automatically add light if fullbright.
///@}
/**
* @defgroup mobjFlags Mobj Flags
* @ingroup mobj
*/
///@{
#define DDMF_DONTDRAW 0x00000001
#define DDMF_SHADOW 0x00000002
#define DDMF_ALTSHADOW 0x00000004
#define DDMF_BRIGHTSHADOW 0x00000008
#define DDMF_VIEWALIGN 0x00000010
#define DDMF_FITTOP 0x00000020 ///< Don't let the sprite go into the ceiling.
#define DDMF_NOFITBOTTOM 0x00000040
//#define DDMF_UNUSED1 0x00000080 // Formerly DDMF_NOBLOCKMAP
#define DDMF_LIGHTSCALE 0x00000180 ///< Light scale (0: full, 3: 1/4).
#define DDMF_LIGHTOFFSET 0x0000f000 ///< How to offset light (along Z axis).
//#define DDMF_RESERVED 0x00030000 // Don't touch these!! (translation class).
#define DDMF_BOB 0x00040000 ///< Bob the Z coord up and down.
#define DDMF_LOWGRAVITY 0x00080000 ///< 1/8th gravity (predict).
#define DDMF_MISSILE 0x00100000 ///< Client removes mobj upon impact.
#define DDMF_FLY 0x00200000 ///< Flying object (doesn't matter if airborne).
#define DDMF_NOGRAVITY 0x00400000 ///< Isn't affected by gravity (predict).
#define DDMF_ALWAYSLIT 0x00800000 ///< Always process DL even if hidden.
#define DDMF_SOLID 0x20000000 ///< Solid on client side.
#define DDMF_LOCAL 0x40000000
#define DDMF_REMOTE 0x80000000 ///< This mobj is really on the server.
/// Clear masks (flags the game plugin is not allowed to touch).
#define DDMF_CLEAR_MASK 0xc0000000
#define DDMF_LIGHTSCALESHIFT 7
#define DDMF_LIGHTOFFSETSHIFT 12
///@}
#define DDMOBJ_RADIUS_MAX 32
/// The high byte of the selector is not used for modeldef selecting.
/// 1110 0000 = alpha level (0: opaque => 7: transparent 7/8) @ingroup mobj
#define DDMOBJ_SELECTOR_MASK 0x00ffffff
#define DDMOBJ_SELECTOR_SHIFT 24
#define VISIBLE 1
#define INVISIBLE -1
/// Momentum axis indices. @ingroup mobj
enum { MX, MY, MZ };
/**
* Axis-aligned bounding box with integer precision.
* Handy POD structure for manipulation of bounding boxes. @ingroup map
*/
typedef struct aabox_s {
union {
struct {
int vec4[4];
};
struct {
int arvec2[2][2];
};
struct {
int min[2];
int max[2];
};
struct {
int minX;
int minY;
int maxX;
int maxY;
};
};
} AABox;
/**
* Axis-aligned bounding box with floating-point precision.
* Handy POD structure for manipulation of bounding boxes. @ingroup map
*/
typedef struct aaboxf_s {
union {
struct {
float vec4[4];
};
struct {
float arvec2[2][2];
};
struct {
float min[2];
float max[2];
};
struct {
float minX;
float minY;
float maxX;
float maxY;
};
};
} AABoxf;
/**
* Axis-aligned bounding box with double floating-point precision.
* Handy POD structure for manipulation of bounding boxes. @ingroup map
*/
typedef struct aaboxd_s {
union {
struct {
double vec4[4];
};
struct {
double arvec2[2][2];
};
struct {
double min[2];
double max[2];
};
struct {
double minX;