am_map.c
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上传日期:2021-05-12
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文件大小:30k
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射击游戏
开发平台:
Visual C++
- // Emacs style mode select -*- C++ -*-
- //-----------------------------------------------------------------------------
- //
- // $Id:$
- //
- // Copyright (C) 1993-1996 by id Software, Inc.
- //
- // This source is available for distribution and/or modification
- // only under the terms of the DOOM Source Code License as
- // published by id Software. All rights reserved.
- //
- // The source is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
- // for more details.
- //
- //
- // $Log:$
- //
- // DESCRIPTION: the automap code
- //
- //-----------------------------------------------------------------------------
- static const char rcsid[] = "$Id: am_map.c,v 1.4 1997/02/03 21:24:33 b1 Exp $";
- #include <stdio.h>
- #include "z_zone.h"
- #include "doomdef.h"
- #include "st_stuff.h"
- #include "p_local.h"
- #include "w_wad.h"
- #include "m_cheat.h"
- #include "i_system.h"
- // Needs access to LFB.
- #include "v_video.h"
- // State.
- #include "doomstat.h"
- #include "r_state.h"
- // Data.
- #include "dstrings.h"
- #include "am_map.h"
- char MsgText[256];
- void WriteDebug(char *);
- // For use if I do walls with outsides/insides
- #define REDS (256-5*16)
- #define REDRANGE 16
- #define BLUES (256-4*16+8)
- #define BLUERANGE 8
- #define GREENS (7*16)
- #define GREENRANGE 16
- #define GRAYS (6*16)
- #define GRAYSRANGE 16
- #define BROWNS (4*16)
- #define BROWNRANGE 16
- #define YELLOWS (256-32+7)
- #define YELLOWRANGE 1
- #define BLACK 0
- #define WHITE (256-47)
- // Automap colors
- #define BACKGROUND BLACK
- #define YOURCOLORS WHITE
- #define YOURRANGE 0
- #define WALLCOLORS REDS
- #define WALLRANGE REDRANGE
- #define TSWALLCOLORS GRAYS
- #define TSWALLRANGE GRAYSRANGE
- #define FDWALLCOLORS BROWNS
- #define FDWALLRANGE BROWNRANGE
- #define CDWALLCOLORS YELLOWS
- #define CDWALLRANGE YELLOWRANGE
- #define THINGCOLORS GREENS
- #define THINGRANGE GREENRANGE
- #define SECRETWALLCOLORS WALLCOLORS
- #define SECRETWALLRANGE WALLRANGE
- #define GRIDCOLORS (GRAYS + GRAYSRANGE/2)
- #define GRIDRANGE 0
- #define XHAIRCOLORS GRAYS
- // drawing stuff
- #define FB 0
- #define AM_PANDOWNKEY KEY_DOWNARROW
- #define AM_PANUPKEY KEY_UPARROW
- #define AM_PANRIGHTKEY KEY_RIGHTARROW
- #define AM_PANLEFTKEY KEY_LEFTARROW
- #define AM_ZOOMINKEY KEY_EQUALS
- #define AM_ZOOMOUTKEY KEY_MINUS
- #define AM_STARTKEY KEY_TAB
- #define AM_ENDKEY KEY_TAB
- #define AM_GOBIGKEY KEY_0
- #define AM_FOLLOWKEY KEY_F
- #define AM_GRIDKEY KEY_G
- #define AM_MARKKEY KEY_M
- #define AM_CLEARMARKKEY KEY_C
- #define AM_NUMMARKPOINTS 10
- // scale on entry
- #define INITSCALEMTOF (.2*FRACUNIT)
- // how much the automap moves window per tic in frame-buffer coordinates
- // moves 140 pixels in 1 second
- #define F_PANINC 4
- // how much zoom-in per tic
- // goes to 2x in 1 second
- #define M_ZOOMIN ((int) (1.02*FRACUNIT))
- // how much zoom-out per tic
- // pulls out to 0.5x in 1 second
- #define M_ZOOMOUT ((int) (FRACUNIT/1.02))
- // translates between frame-buffer and map distances
- #define FTOM(x) FixedMul(((x)<<16),scale_ftom)
- #define MTOF(x) (FixedMul((x),scale_mtof)>>16)
- // translates between frame-buffer and map coordinates
- #define CXMTOF(x) (f_x + MTOF((x)-m_x))
- #define CYMTOF(y) (f_y + (f_h - MTOF((y)-m_y)))
- // the following is crap
- #define LINE_NEVERSEE ML_DONTDRAW
- typedef struct
- {
- int x, y;
- } fpoint_t;
- typedef struct
- {
- fpoint_t a, b;
- } fline_t;
- typedef struct
- {
- fixed_t x,y;
- } mpoint_t;
- typedef struct
- {
- mpoint_t a, b;
- } mline_t;
- typedef struct
- {
- fixed_t slp, islp;
- } islope_t;
- //
- // The vector graphics for the automap.
- // A line drawing of the player pointing right,
- // starting from the middle.
- //
- #define R ((8*PLAYERRADIUS)/7)
- mline_t player_arrow[] = {
- { { -R+R/8, 0 }, { R, 0 } }, // -----
- { { R, 0 }, { R-R/2, R/4 } }, // ----->
- { { R, 0 }, { R-R/2, -R/4 } },
- { { -R+R/8, 0 }, { -R-R/8, R/4 } }, // >---->
- { { -R+R/8, 0 }, { -R-R/8, -R/4 } },
- { { -R+3*R/8, 0 }, { -R+R/8, R/4 } }, // >>--->
- { { -R+3*R/8, 0 }, { -R+R/8, -R/4 } }
- };
- #undef R
- #define NUMPLYRLINES (sizeof(player_arrow)/sizeof(mline_t))
- #define R ((8*PLAYERRADIUS)/7)
- mline_t cheat_player_arrow[] = {
- { { -R+R/8, 0 }, { R, 0 } }, // -----
- { { R, 0 }, { R-R/2, R/6 } }, // ----->
- { { R, 0 }, { R-R/2, -R/6 } },
- { { -R+R/8, 0 }, { -R-R/8, R/6 } }, // >----->
- { { -R+R/8, 0 }, { -R-R/8, -R/6 } },
- { { -R+3*R/8, 0 }, { -R+R/8, R/6 } }, // >>----->
- { { -R+3*R/8, 0 }, { -R+R/8, -R/6 } },
- { { -R/2, 0 }, { -R/2, -R/6 } }, // >>-d--->
- { { -R/2, -R/6 }, { -R/2+R/6, -R/6 } },
- { { -R/2+R/6, -R/6 }, { -R/2+R/6, R/4 } },
- { { -R/6, 0 }, { -R/6, -R/6 } }, // >>-dd-->
- { { -R/6, -R/6 }, { 0, -R/6 } },
- { { 0, -R/6 }, { 0, R/4 } },
- { { R/6, R/4 }, { R/6, -R/7 } }, // >>-ddt->
- { { R/6, -R/7 }, { R/6+R/32, -R/7-R/32 } },
- { { R/6+R/32, -R/7-R/32 }, { R/6+R/10, -R/7 } }
- };
- #undef R
- #define NUMCHEATPLYRLINES (sizeof(cheat_player_arrow)/sizeof(mline_t))
- #define R (FRACUNIT)
- mline_t triangle_guy[] = {
- { { -.867*R, -.5*R }, { .867*R, -.5*R } },
- { { .867*R, -.5*R } , { 0, R } },
- { { 0, R }, { -.867*R, -.5*R } }
- };
- #undef R
- #define NUMTRIANGLEGUYLINES (sizeof(triangle_guy)/sizeof(mline_t))
- #define R (FRACUNIT)
- mline_t thintriangle_guy[] = {
- { { -.5*R, -.7*R }, { R, 0 } },
- { { R, 0 }, { -.5*R, .7*R } },
- { { -.5*R, .7*R }, { -.5*R, -.7*R } }
- };
- #undef R
- #define NUMTHINTRIANGLEGUYLINES (sizeof(thintriangle_guy)/sizeof(mline_t))
- static int cheating = 0;
- static int grid = 0;
- static int leveljuststarted = 1; // kluge until AM_LevelInit() is called
- boolean automapactive = false;
- //static int finit_width = SCREENWIDTH;
- //static int finit_height = SCREENHEIGHT - 32;
- // location of window on screen
- static int f_x;
- static int f_y;
- // size of window on screen
- static int f_w;
- static int f_h;
- static int lightlev; // used for funky strobing effect
- static byte* fb; // pseudo-frame buffer
- static int amclock;
- static mpoint_t m_paninc; // how far the window pans each tic (map coords)
- static fixed_t mtof_zoommul; // how far the window zooms in each tic (map coords)
- static fixed_t ftom_zoommul; // how far the window zooms in each tic (fb coords)
- static fixed_t m_x, m_y; // LL x,y where the window is on the map (map coords)
- static fixed_t m_x2, m_y2; // UR x,y where the window is on the map (map coords)
- //
- // width/height of window on map (map coords)
- //
- static fixed_t m_w;
- static fixed_t m_h;
- // based on level size
- static fixed_t min_x;
- static fixed_t min_y;
- static fixed_t max_x;
- static fixed_t max_y;
- static fixed_t max_w; // max_x-min_x,
- static fixed_t max_h; // max_y-min_y
- // based on player size
- static fixed_t min_w;
- static fixed_t min_h;
- static fixed_t min_scale_mtof; // used to tell when to stop zooming out
- static fixed_t max_scale_mtof; // used to tell when to stop zooming in
- // old stuff for recovery later
- static fixed_t old_m_w, old_m_h;
- static fixed_t old_m_x, old_m_y;
- // old location used by the Follower routine
- static mpoint_t f_oldloc;
- // used by MTOF to scale from map-to-frame-buffer coords
- static fixed_t scale_mtof = INITSCALEMTOF;
- // used by FTOM to scale from frame-buffer-to-map coords (=1/scale_mtof)
- static fixed_t scale_ftom;
- static player_t *plr; // the player represented by an arrow
- static patch_t *marknums[10]; // numbers used for marking by the automap
- static mpoint_t markpoints[AM_NUMMARKPOINTS]; // where the points are
- static int markpointnum = 0; // next point to be assigned
- static int followplayer = 1; // specifies whether to follow the player around
- static unsigned char cheat_amap_seq[] = { 0xb2, 0x26, 0x26, 0x2e, 0xff };
- static cheatseq_t cheat_amap = { cheat_amap_seq, 0 };
- static boolean stopped = true;
- extern boolean viewactive;
- //extern byte screens[][SCREENWIDTH*SCREENHEIGHT];
- void
- V_MarkRect
- ( int x,
- int y,
- int width,
- int height );
- // Calculates the slope and slope according to the x-axis of a line
- // segment in map coordinates (with the upright y-axis n' all) so
- // that it can be used with the brain-dead drawing stuff.
- void
- AM_getIslope
- ( mline_t* ml,
- islope_t* is )
- {
- int dx, dy;
- dy = ml->a.y - ml->b.y;
- dx = ml->b.x - ml->a.x;
- if (!dy) is->islp = (dx<0?-MAXINT:MAXINT);
- else is->islp = FixedDiv(dx, dy);
- if (!dx) is->slp = (dy<0?-MAXINT:MAXINT);
- else is->slp = FixedDiv(dy, dx);
- }
- //
- //
- //
- void AM_activateNewScale(void)
- {
- m_x += m_w/2;
- m_y += m_h/2;
- m_w = FTOM(f_w);
- m_h = FTOM(f_h);
- m_x -= m_w/2;
- m_y -= m_h/2;
- m_x2 = m_x + m_w;
- m_y2 = m_y + m_h;
- }
- //
- //
- //
- void AM_saveScaleAndLoc(void)
- {
- old_m_x = m_x;
- old_m_y = m_y;
- old_m_w = m_w;
- old_m_h = m_h;
- }
- //
- //
- //
- void AM_restoreScaleAndLoc(void)
- {
- m_w = old_m_w;
- m_h = old_m_h;
- if (!followplayer)
- {
- m_x = old_m_x;
- m_y = old_m_y;
- } else {
- m_x = plr->mo->x - m_w/2;
- m_y = plr->mo->y - m_h/2;
- }
- m_x2 = m_x + m_w;
- m_y2 = m_y + m_h;
- // Change the scaling multipliers
- scale_mtof = FixedDiv(f_w<<FRACBITS, m_w);
- scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
- }
- //
- // adds a marker at the current location
- //
- void AM_addMark(void)
- {
- markpoints[markpointnum].x = m_x + m_w/2;
- markpoints[markpointnum].y = m_y + m_h/2;
- markpointnum = (markpointnum + 1) % AM_NUMMARKPOINTS;
- }
- //
- // Determines bounding box of all vertices,
- // sets global variables controlling zoom range.
- //
- void AM_findMinMaxBoundaries(void)
- {
- int i;
- fixed_t a;
- fixed_t b;
- min_x = min_y = MAXINT;
- max_x = max_y = MININT;
- for (i=0;i<numvertexes;i++)
- {
- if (vertexes[i].x < min_x)
- min_x = vertexes[i].x;
- else if (vertexes[i].x > max_x)
- max_x = vertexes[i].x;
- if (vertexes[i].y < min_y)
- min_y = vertexes[i].y;
- else if (vertexes[i].y > max_y)
- max_y = vertexes[i].y;
- }
- max_w = max_x - min_x;
- max_h = max_y - min_y;
- // sprintf(MsgText, "max_x,max_y = %d,%d : min_x,min_y = %d,%dn",
- // max_x>>FRACBITS, max_y>>FRACBITS, min_x>>FRACBITS, min_y>>FRACBITS);
- // WriteDebug(MsgText);
- min_w = 2*PLAYERRADIUS; // const? never changed?
- min_h = 2*PLAYERRADIUS;
- // sprintf(MsgText, "max_w,max_h = %d,%d: min_w,min_h %d,%dn",
- // max_w>>FRACBITS, max_h>>FRACBITS, min_w>>FRACBITS, min_h>>FRACBITS);
- // WriteDebug(MsgText);
- a = FixedDiv(f_w<<FRACBITS, max_w);
- b = FixedDiv(f_h<<FRACBITS, max_h);
- // sprintf(MsgText, "a = %d, b = %dn", a, b);
- // WriteDebug(MsgText);
- min_scale_mtof = a < b ? a : b;
- max_scale_mtof = FixedDiv(f_h<<FRACBITS, 2*PLAYERRADIUS);
- // sprintf(MsgText, "min_scale_mtof = %d, max_scale_mtof = %dn", min_scale_mtof, max_scale_mtof);
- // WriteDebug(MsgText);
- }
- //
- //
- //
- void AM_changeWindowLoc(void)
- {
- if (m_paninc.x || m_paninc.y)
- {
- followplayer = 0;
- f_oldloc.x = MAXINT;
- }
- m_x += m_paninc.x;
- m_y += m_paninc.y;
- if (m_x + m_w/2 > max_x)
- m_x = max_x - m_w/2;
- else if (m_x + m_w/2 < min_x)
- m_x = min_x - m_w/2;
- if (m_y + m_h/2 > max_y)
- m_y = max_y - m_h/2;
- else if (m_y + m_h/2 < min_y)
- m_y = min_y - m_h/2;
- m_x2 = m_x + m_w;
- m_y2 = m_y + m_h;
- }
- //
- //
- //
- void AM_initVariables(void)
- {
- int pnum;
- static event_t st_notify = { ev_keyup, AM_MSGENTERED };
- automapactive = true;
- fb = screens[0];
- f_oldloc.x = MAXINT;
- amclock = 0;
- lightlev = 0;
- m_paninc.x = m_paninc.y = 0;
- ftom_zoommul = FRACUNIT;
- mtof_zoommul = FRACUNIT;
- m_w = FTOM(f_w);
- m_h = FTOM(f_h);
- // sprintf(MsgText, "f_w = %d, f_h = %d, m_w = %d, m_h = %dn", f_w, f_h, m_w, m_h);
- // WriteDebug(MsgText);
- // find player to center on initially
- if (!playeringame[pnum = consoleplayer])
- for (pnum=0;pnum<MAXPLAYERS;pnum++)
- if (playeringame[pnum])
- break;
- plr = &players[pnum];
- m_x = plr->mo->x - m_w/2;
- m_y = plr->mo->y - m_h/2;
- AM_changeWindowLoc();
- // for saving & restoring
- old_m_x = m_x;
- old_m_y = m_y;
- old_m_w = m_w;
- old_m_h = m_h;
- // inform the status bar of the change
- ST_Responder(&st_notify);
- }
- //
- //
- //
- void AM_loadPics(void)
- {
- int i;
- char namebuf[9];
- for (i=0;i<10;i++)
- {
- sprintf(namebuf, "AMMNUM%d", i);
- marknums[i] = W_CacheLumpName(namebuf, PU_STATIC);
- }
- }
- void AM_unloadPics(void)
- {
- int i;
- for (i=0;i<10;i++)
- Z_ChangeTag(marknums[i], PU_CACHE);
- }
- void AM_clearMarks(void)
- {
- int i;
- for (i=0;i<AM_NUMMARKPOINTS;i++)
- markpoints[i].x = -1; // means empty
- markpointnum = 0;
- }
- //
- // should be called at the start of every level
- // right now, i figure it out myself
- //
- void AM_LevelInit(void)
- {
- leveljuststarted = 0;
- f_x = f_y = 0;
- f_w = SCREENWIDTH;
- f_h = (SCREENHEIGHT - 32);
- // f_w = finit_width;
- // f_h = finit_height;
- AM_clearMarks();
- AM_findMinMaxBoundaries();
- scale_mtof = FixedDiv(min_scale_mtof, (int) (0.7*FRACUNIT));
- if (scale_mtof > max_scale_mtof)
- scale_mtof = min_scale_mtof;
- scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
- // sprintf(MsgText, "scale_mtof %d, scale_ftom %dn", scale_mtof, scale_ftom);
- // WriteDebug(MsgText);
- }
- //
- //
- //
- void AM_Stop (void)
- {
- static event_t st_notify = { 0, ev_keyup, AM_MSGEXITED };
- AM_unloadPics();
- automapactive = false;
- ST_Responder(&st_notify);
- stopped = true;
- }
- //
- //
- //
- void AM_Start (void)
- {
- static int lastlevel = -1, lastepisode = -1;
- if (!stopped) AM_Stop();
- stopped = false;
- if (lastlevel != gamemap || lastepisode != gameepisode)
- {
- AM_LevelInit();
- lastlevel = gamemap;
- lastepisode = gameepisode;
- }
- AM_initVariables();
- AM_loadPics();
- }
- //
- // set the window scale to the maximum size
- //
- void AM_minOutWindowScale(void)
- {
- scale_mtof = min_scale_mtof;
- scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
- AM_activateNewScale();
- }
- //
- // set the window scale to the minimum size
- //
- void AM_maxOutWindowScale(void)
- {
- scale_mtof = max_scale_mtof;
- scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
- AM_activateNewScale();
- }
- //
- // Handle events (user inputs) in automap mode
- //
- boolean
- AM_Responder
- ( event_t* ev )
- {
- int rc;
- static int cheatstate=0;
- static int bigstate=0;
- static char buffer[20];
- rc = false;
- if (!automapactive)
- {
- if (ev->type == ev_keydown && ev->data1 == AM_STARTKEY)
- {
- AM_Start ();
- viewactive = false;
- rc = true;
- }
- }
- else if (ev->type == ev_keydown)
- {
- rc = true;
- switch(ev->data1)
- {
- case AM_PANRIGHTKEY: // pan right
- if (!followplayer) m_paninc.x = FTOM(F_PANINC);
- else rc = false;
- break;
- case AM_PANLEFTKEY: // pan left
- if (!followplayer) m_paninc.x = -FTOM(F_PANINC);
- else rc = false;
- break;
- case AM_PANUPKEY: // pan up
- if (!followplayer) m_paninc.y = FTOM(F_PANINC);
- else rc = false;
- break;
- case AM_PANDOWNKEY: // pan down
- if (!followplayer) m_paninc.y = -FTOM(F_PANINC);
- else rc = false;
- break;
- case AM_ZOOMOUTKEY: // zoom out
- mtof_zoommul = M_ZOOMOUT;
- ftom_zoommul = M_ZOOMIN;
- break;
- case AM_ZOOMINKEY: // zoom in
- mtof_zoommul = M_ZOOMIN;
- ftom_zoommul = M_ZOOMOUT;
- break;
- case AM_ENDKEY:
- bigstate = 0;
- viewactive = true;
- AM_Stop ();
- break;
- case AM_GOBIGKEY:
- bigstate = !bigstate;
- if (bigstate)
- {
- AM_saveScaleAndLoc();
- AM_minOutWindowScale();
- }
- else AM_restoreScaleAndLoc();
- break;
- case AM_FOLLOWKEY:
- followplayer = !followplayer;
- f_oldloc.x = MAXINT;
- plr->message = followplayer ? AMSTR_FOLLOWON : AMSTR_FOLLOWOFF;
- break;
- case AM_GRIDKEY:
- grid = !grid;
- plr->message = grid ? AMSTR_GRIDON : AMSTR_GRIDOFF;
- break;
- case AM_MARKKEY:
- sprintf(buffer, "%s %d", AMSTR_MARKEDSPOT, markpointnum);
- plr->message = buffer;
- AM_addMark();
- break;
- case AM_CLEARMARKKEY:
- AM_clearMarks();
- plr->message = AMSTR_MARKSCLEARED;
- break;
- default:
- cheatstate=0;
- rc = false;
- }
- if (!deathmatch && cht_CheckCheat(&cheat_amap, ev->data1))
- {
- rc = false;
- cheating = (cheating+1) % 3;
- }
- }
- else if (ev->type == ev_keyup)
- {
- rc = false;
- switch (ev->data1)
- {
- case AM_PANRIGHTKEY:
- if (!followplayer) m_paninc.x = 0;
- break;
- case AM_PANLEFTKEY:
- if (!followplayer) m_paninc.x = 0;
- break;
- case AM_PANUPKEY:
- if (!followplayer) m_paninc.y = 0;
- break;
- case AM_PANDOWNKEY:
- if (!followplayer) m_paninc.y = 0;
- break;
- case AM_ZOOMOUTKEY:
- case AM_ZOOMINKEY:
- mtof_zoommul = FRACUNIT;
- ftom_zoommul = FRACUNIT;
- break;
- }
- }
- return rc;
- }
- //
- // Zooming
- //
- void AM_changeWindowScale(void)
- {
- // Change the scaling multipliers
- scale_mtof = FixedMul(scale_mtof, mtof_zoommul);
- scale_ftom = FixedDiv(FRACUNIT, scale_mtof);
- if (scale_mtof < min_scale_mtof)
- AM_minOutWindowScale();
- else if (scale_mtof > max_scale_mtof)
- AM_maxOutWindowScale();
- else
- AM_activateNewScale();
- }
- //
- //
- //
- void AM_doFollowPlayer(void)
- {
- if (f_oldloc.x != plr->mo->x || f_oldloc.y != plr->mo->y)
- {
- m_x = FTOM(MTOF(plr->mo->x)) - m_w/2;
- m_y = FTOM(MTOF(plr->mo->y)) - m_h/2;
- m_x2 = m_x + m_w;
- m_y2 = m_y + m_h;
- f_oldloc.x = plr->mo->x;
- f_oldloc.y = plr->mo->y;
- // m_x = FTOM(MTOF(plr->mo->x - m_w/2));
- // m_y = FTOM(MTOF(plr->mo->y - m_h/2));
- // m_x = plr->mo->x - m_w/2;
- // m_y = plr->mo->y - m_h/2;
- }
- }
- //
- //
- //
- void AM_updateLightLev(void)
- {
- static nexttic = 0;
- //static int litelevels[] = { 0, 3, 5, 6, 6, 7, 7, 7 };
- static int litelevels[] = { 0, 4, 7, 10, 12, 14, 15, 15 };
- static int litelevelscnt = 0;
- // Change light level
- if (amclock>nexttic)
- {
- lightlev = litelevels[litelevelscnt++];
- if (litelevelscnt == sizeof(litelevels)/sizeof(int)) litelevelscnt = 0;
- nexttic = amclock + 6 - (amclock % 6);
- }
- }
- //
- // Updates on Game Tick
- //
- void AM_Ticker (void)
- {
- if (!automapactive)
- return;
- amclock++;
- if (followplayer)
- AM_doFollowPlayer();
- // Change the zoom if necessary
- if (ftom_zoommul != FRACUNIT)
- AM_changeWindowScale();
- // Change x,y location
- if (m_paninc.x || m_paninc.y)
- AM_changeWindowLoc();
- // Update light level
- // AM_updateLightLev();
- }
- //
- // Clear automap frame buffer.
- //
- void AM_clearFB(int color)
- {
- memset(fb, color, f_w*f_h);
- }
- //
- // Automap clipping of lines.
- //
- // Based on Cohen-Sutherland clipping algorithm but with a slightly
- // faster reject and precalculated slopes. If the speed is needed,
- // use a hash algorithm to handle the common cases.
- //
- boolean AM_clipMline( mline_t *ml, fline_t *fl )
- {
- enum
- {
- LEFT = 1,
- RIGHT = 2,
- BOTTOM = 4,
- TOP = 8
- };
- register outcode1 = 0;
- register outcode2 = 0;
- register outside;
- fpoint_t tmp;
- int dx;
- int dy;
- // sprintf(MsgText, "Testing line : ml->a.x,ml->a.y %d,%d to ml->b.x,ml->b.y %d,%dn", ml->a.x>>FRACBITS,ml->a.y>>FRACBITS,ml->b.x>>FRACBITS,ml->b.y>>FRACBITS);
- // WriteDebug(MsgText);
- #define DOOUTCODE(oc, mx, my)
- (oc) = 0;
- if ((my) < 0) (oc) |= TOP;
- else if ((my) >= f_h) (oc) |= BOTTOM;
- if ((mx) < 0) (oc) |= LEFT;
- else if ((mx) >= f_w) (oc) |= RIGHT;
- // do trivial rejects and outcodes
- if (ml->a.y > m_y2)
- outcode1 = TOP;
- else if (ml->a.y < m_y)
- outcode1 = BOTTOM;
- if (ml->b.y > m_y2)
- outcode2 = TOP;
- else if (ml->b.y < m_y)
- outcode2 = BOTTOM;
- if (outcode1 & outcode2)
- return false; // trivially outside
- if (ml->a.x < m_x)
- outcode1 |= LEFT;
- else if (ml->a.x > m_x2)
- outcode1 |= RIGHT;
- if (ml->b.x < m_x)
- outcode2 |= LEFT;
- else if (ml->b.x > m_x2)
- outcode2 |= RIGHT;
- if (outcode1 & outcode2)
- return false; // trivially outside
- // transform to frame-buffer coordinates.
- fl->a.x = CXMTOF(ml->a.x);
- fl->a.y = CYMTOF(ml->a.y);
- fl->b.x = CXMTOF(ml->b.x);
- fl->b.y = CYMTOF(ml->b.y);
- DOOUTCODE(outcode1, fl->a.x, fl->a.y);
- DOOUTCODE(outcode2, fl->b.x, fl->b.y);
- if (outcode1 & outcode2)
- return false;
- while (outcode1 | outcode2)
- {
- // may be partially inside box
- // find an outside point
- if (outcode1)
- outside = outcode1;
- else
- outside = outcode2;
- // clip to each side
- if (outside & TOP)
- {
- dy = fl->a.y - fl->b.y;
- dx = fl->b.x - fl->a.x;
- tmp.x = fl->a.x + (dx*(fl->a.y))/dy;
- tmp.y = 0;
- }
- else if (outside & BOTTOM)
- {
- dy = fl->a.y - fl->b.y;
- dx = fl->b.x - fl->a.x;
- tmp.x = fl->a.x + (dx*(fl->a.y-f_h))/dy;
- tmp.y = f_h-1;
- }
- else if (outside & RIGHT)
- {
- dy = fl->b.y - fl->a.y;
- dx = fl->b.x - fl->a.x;
- tmp.y = fl->a.y + (dy*(f_w-1 - fl->a.x))/dx;
- tmp.x = f_w-1;
- }
- else if (outside & LEFT)
- {
- dy = fl->b.y - fl->a.y;
- dx = fl->b.x - fl->a.x;
- tmp.y = fl->a.y + (dy*(-fl->a.x))/dx;
- tmp.x = 0;
- }
- if (outside == outcode1)
- {
- fl->a = tmp;
- DOOUTCODE(outcode1, fl->a.x, fl->a.y);
- }
- else
- {
- fl->b = tmp;
- DOOUTCODE(outcode2, fl->b.x, fl->b.y);
- }
- if (outcode1 & outcode2)
- return false; // trivially outside
- }
- return true;
- }
- #undef DOOUTCODE
- //
- // Classic Bresenham w/ whatever optimizations needed for speed
- //
- void
- AM_drawFline
- ( fline_t* fl,
- int color )
- {
- register int x;
- register int y;
- register int dx;
- register int dy;
- register int sx;
- register int sy;
- register int ax;
- register int ay;
- register int d;
- static fuck = 0;
- // For debugging only
- if ( fl->a.x < 0 || fl->a.x >= f_w
- || fl->a.y < 0 || fl->a.y >= f_h
- || fl->b.x < 0 || fl->b.x >= f_w
- || fl->b.y < 0 || fl->b.y >= f_h)
- {
- sprintf(MsgText, "fuck %d r", fuck++);
- WriteDebug(MsgText);
- return;
- }
- // sprintf(MsgText, "Drawline from %d,%d to %d,%d : color %d...n", fl->a.x,fl->a.y, fl->b.x,fl->b.y, color);
- // WriteDebug(MsgText);
- #define PUTDOT(xx,yy,cc) fb[(yy)*f_w+(xx)]=(cc)
- dx = fl->b.x - fl->a.x;
- ax = 2 * (dx<0 ? -dx : dx);
- sx = dx<0 ? -1 : 1;
- dy = fl->b.y - fl->a.y;
- ay = 2 * (dy<0 ? -dy : dy);
- sy = dy<0 ? -1 : 1;
- x = fl->a.x;
- y = fl->a.y;
- if (ax > ay)
- {
- d = ay - ax/2;
- while (1)
- {
- PUTDOT(x,y,color);
- if (x == fl->b.x) return;
- if (d>=0)
- {
- y += sy;
- d -= ax;
- }
- x += sx;
- d += ay;
- }
- }
- else
- {
- d = ax - ay/2;
- while (1)
- {
- PUTDOT(x, y, color);
- if (y == fl->b.y) return;
- if (d >= 0)
- {
- x += sx;
- d -= ay;
- }
- y += sy;
- d += ax;
- }
- }
- }
- //
- // Clip lines, draw visible part sof lines.
- //
- void AM_drawMline( mline_t *ml,int color )
- {
- static fline_t fl;
- if (AM_clipMline(ml, &fl))
- AM_drawFline(&fl, color); // draws it on frame buffer using fb coords
- }
- //
- // Draws flat (floor/ceiling tile) aligned grid lines.
- //
- void AM_drawGrid(int color)
- {
- fixed_t x, y;
- fixed_t start, end;
- mline_t ml;
- // WriteDebug("Drawing grid...n");
- // Figure out start of vertical gridlines
- // sprintf(MsgText, "m_x = %d : bmaporgx = %d : bmaporgy = %dn", m_x>>FRACBITS, bmaporgx>>FRACBITS, bmaporgy>>FRACBITS);
- // WriteDebug(MsgText);
- start = m_x;
- if ((start-bmaporgx)%(MAPBLOCKUNITS<<FRACBITS))
- start += (MAPBLOCKUNITS<<FRACBITS) - ((start-bmaporgx)%(MAPBLOCKUNITS<<FRACBITS));
- end = m_x + m_w;
- // sprintf(MsgText, "start %d, end %dn", start>>FRACBITS, end>>FRACBITS);
- // WriteDebug(MsgText);
- // draw vertical gridlines
- ml.a.y = m_y;
- ml.b.y = m_y+m_h;
- // sprintf(MsgText, "m_y = %d, m_h = %dn", m_y>>FRACBITS, m_h>>FRACBITS);
- // WriteDebug(MsgText);
- for (x = start; x < end; x += (MAPBLOCKUNITS<<FRACBITS))
- {
- ml.a.x = x;
- ml.b.x = x;
- AM_drawMline(&ml, color);
- }
- // Figure out start of horizontal gridlines
- start = m_y;
- if ((start-bmaporgy)%(MAPBLOCKUNITS<<FRACBITS))
- start += (MAPBLOCKUNITS<<FRACBITS)
- - ((start-bmaporgy)%(MAPBLOCKUNITS<<FRACBITS));
- end = m_y + m_h;
- // draw horizontal gridlines
- ml.a.x = m_x;
- ml.b.x = m_x + m_w;
- for (y=start; y<end; y+=(MAPBLOCKUNITS<<FRACBITS))
- {
- ml.a.y = y;
- ml.b.y = y;
- AM_drawMline(&ml, color);
- }
- }
- //
- // Determines visible lines, draws them.
- // This is LineDef based, not LineSeg based.
- //
- void AM_drawWalls(void)
- {
- int i;
- static mline_t l;
- for (i=0;i<numlines;i++)
- {
- l.a.x = lines[i].v1->x;
- l.a.y = lines[i].v1->y;
- l.b.x = lines[i].v2->x;
- l.b.y = lines[i].v2->y;
- if (cheating || (lines[i].flags & ML_MAPPED))
- {
- if ((lines[i].flags & LINE_NEVERSEE) && !cheating)
- continue;
- if (!lines[i].backsector)
- {
- AM_drawMline(&l, WALLCOLORS+lightlev);
- }
- else
- {
- if (lines[i].special == 39)
- { // teleporters
- AM_drawMline(&l, WALLCOLORS+WALLRANGE/2);
- }
- else if (lines[i].flags & ML_SECRET) // secret door
- {
- if (cheating) AM_drawMline(&l, SECRETWALLCOLORS + lightlev);
- else AM_drawMline(&l, WALLCOLORS+lightlev);
- }
- else if (lines[i].backsector->floorheight
- != lines[i].frontsector->floorheight) {
- AM_drawMline(&l, FDWALLCOLORS + lightlev); // floor level change
- }
- else if (lines[i].backsector->ceilingheight
- != lines[i].frontsector->ceilingheight) {
- AM_drawMline(&l, CDWALLCOLORS+lightlev); // ceiling level change
- }
- else if (cheating) {
- AM_drawMline(&l, TSWALLCOLORS+lightlev);
- }
- }
- }
- else if (plr->powers[pw_allmap])
- {
- if (!(lines[i].flags & LINE_NEVERSEE)) AM_drawMline(&l, GRAYS+3);
- }
- }
- }
- //
- // Rotation in 2D.
- // Used to rotate player arrow line character.
- //
- void
- AM_rotate
- ( fixed_t* x,
- fixed_t* y,
- angle_t a )
- {
- fixed_t tmpx;
- tmpx =
- FixedMul(*x,finecosine[a>>ANGLETOFINESHIFT])
- - FixedMul(*y,finesine[a>>ANGLETOFINESHIFT]);
- *y =
- FixedMul(*x,finesine[a>>ANGLETOFINESHIFT])
- + FixedMul(*y,finecosine[a>>ANGLETOFINESHIFT]);
- *x = tmpx;
- }
- void AM_drawLineCharacter( mline_t* lineguy, int lineguylines, fixed_t scale, angle_t angle, int color, fixed_t x, fixed_t y )
- {
- int i;
- mline_t l;
- for (i = 0;i < lineguylines;i++)
- {
- l.a.x = lineguy[i].a.x;
- l.a.y = lineguy[i].a.y;
- if (scale)
- {
- l.a.x = FixedMul(scale, l.a.x);
- l.a.y = FixedMul(scale, l.a.y);
- }
- if (angle)
- AM_rotate(&l.a.x, &l.a.y, angle);
- l.a.x += x;
- l.a.y += y;
- l.b.x = lineguy[i].b.x;
- l.b.y = lineguy[i].b.y;
- if (scale)
- {
- l.b.x = FixedMul(scale, l.b.x);
- l.b.y = FixedMul(scale, l.b.y);
- }
- if (angle)
- AM_rotate(&l.b.x, &l.b.y, angle);
- l.b.x += x;
- l.b.y += y;
- AM_drawMline(&l, color);
- }
- }
- void AM_drawPlayers(void)
- {
- int i;
- player_t* p;
- static int their_colors[] = { GREENS, GRAYS, BROWNS, REDS };
- int their_color = -1;
- int color;
- if (!netgame)
- {
- if (cheating)
- AM_drawLineCharacter
- (cheat_player_arrow, NUMCHEATPLYRLINES, 0,
- plr->mo->angle, WHITE, plr->mo->x, plr->mo->y);
- else
- AM_drawLineCharacter
- (player_arrow, NUMPLYRLINES, 0, plr->mo->angle,
- WHITE, plr->mo->x, plr->mo->y);
- return;
- }
- for (i=0;i<MAXPLAYERS;i++)
- {
- their_color++;
- p = &players[i];
- if ( (deathmatch && !singledemo) && p != plr)
- continue;
- if (!playeringame[i])
- continue;
- if (p->powers[pw_invisibility])
- color = 246; // *close* to black
- else
- color = their_colors[their_color];
- AM_drawLineCharacter
- (player_arrow, NUMPLYRLINES, 0, p->mo->angle,
- color, p->mo->x, p->mo->y);
- }
- }
- void
- AM_drawThings
- ( int colors,
- int colorrange)
- {
- int i;
- mobj_t* t;
- for (i=0;i<numsectors;i++)
- {
- t = sectors[i].thinglist;
- while (t)
- {
- AM_drawLineCharacter
- (thintriangle_guy, NUMTHINTRIANGLEGUYLINES,
- 16<<FRACBITS, t->angle, colors+lightlev, t->x, t->y);
- t = t->snext;
- }
- }
- }
- void AM_drawMarks(void)
- {
- int i, fx, fy, w, h;
- for (i=0;i<AM_NUMMARKPOINTS;i++)
- {
- if (markpoints[i].x != -1)
- {
- // w = SHORT(marknums[i]->width);
- // h = SHORT(marknums[i]->height);
- w = 5; // because something's wrong with the wad, i guess
- h = 6; // because something's wrong with the wad, i guess
- fx = CXMTOF(markpoints[i].x);
- fy = CYMTOF(markpoints[i].y);
- if (fx >= f_x && fx <= f_w - w && fy >= f_y && fy <= f_h - h)
- V_DrawPatch(fx, fy, FB, marknums[i]);
- }
- }
- }
- void AM_drawCrosshair(int color)
- {
- fb[(f_w*(f_h+1))/2] = color; // single point for now
- }
- void AM_Drawer (void)
- {
- if (!automapactive)
- return;
- AM_clearFB(BACKGROUND);
- if (grid)
- AM_drawGrid(GRIDCOLORS);
- AM_drawWalls();
- AM_drawPlayers();
- if (cheating==2)
- AM_drawThings(THINGCOLORS, THINGRANGE);
- AM_drawCrosshair(XHAIRCOLORS);
- AM_drawMarks();
- V_MarkRect(f_x, f_y, f_w, f_h);
- }