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Diffstat (limited to 'src/am_map.c')
| -rw-r--r-- | src/am_map.c | 1352 |
1 files changed, 1352 insertions, 0 deletions
diff --git a/src/am_map.c b/src/am_map.c new file mode 100644 index 00000000..e5cb52b5 --- /dev/null +++ b/src/am_map.c @@ -0,0 +1,1352 @@ +// Emacs style mode select -*- C++ -*- +//----------------------------------------------------------------------------- +// +// $Id: am_map.c 4 2005-07-23 16:19:41Z fraggle $ +// +// 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. +// +// +// $Log$ +// Revision 1.1 2005/07/23 16:20:44 fraggle +// Initial revision +// +// +// DESCRIPTION: the automap code +// +//----------------------------------------------------------------------------- + +static const char rcsid[] = "$Id: am_map.c 4 2005-07-23 16:19:41Z fraggle $"; + +#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" + + +// 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 '=' +#define AM_ZOOMOUTKEY '-' +#define AM_STARTKEY KEY_TAB +#define AM_ENDKEY KEY_TAB +#define AM_GOBIGKEY '0' +#define AM_FOLLOWKEY 'f' +#define AM_GRIDKEY 'g' +#define AM_MARKKEY 'm' +#define AM_CLEARMARKKEY '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 = -MAXINT; + + 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; + + min_w = 2*PLAYERRADIUS; // const? never changed? + min_h = 2*PLAYERRADIUS; + + a = FixedDiv(f_w<<FRACBITS, max_w); + b = FixedDiv(f_h<<FRACBITS, max_h); + + min_scale_mtof = a < b ? a : b; + max_scale_mtof = FixedDiv(f_h<<FRACBITS, 2*PLAYERRADIUS); + +} + + +// +// +// +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); + + // 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 = 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); +} + + + + +// +// +// +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; + + +#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) + { + fprintf(stderr, "fuck %d \r", fuck++); + return; + } + +#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; + + // Figure out start of vertical gridlines + start = m_x; + if ((start-bmaporgx)%(MAPBLOCKUNITS<<FRACBITS)) + start += (MAPBLOCKUNITS<<FRACBITS) + - ((start-bmaporgx)%(MAPBLOCKUNITS<<FRACBITS)); + end = m_x + m_w; + + // draw vertical gridlines + ml.a.y = m_y; + ml.b.y = m_y+m_h; + 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); + +} |