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wl_agent.cpp
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wl_agent.cpp
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// WL_AGENT.C
#include "wl_def.h"
/*
=============================================================================
LOCAL CONSTANTS
=============================================================================
*/
#define MAXMOUSETURN 10
#define MOVESCALE 150l
#define BACKMOVESCALE 100l
#define ANGLESCALE 20
/*
=============================================================================
GLOBAL VARIABLES
=============================================================================
*/
//
// player state info
//
int32_t thrustspeed;
word plux,pluy; // player coordinates scaled to unsigned
short anglefrac;
objtype *LastAttacker;
/*
=============================================================================
LOCAL VARIABLES
=============================================================================
*/
void T_Player (objtype *ob);
void T_Attack (objtype *ob);
struct atkinf
{
int8_t tics,attack,frame; // attack is 1 for gun, 2 for knife
} attackinfo[4][14] =
{
{ {6,0,1},{6,2,2},{6,0,3},{6,-1,4} },
{ {6,0,1},{6,1,2},{6,0,3},{6,-1,4} },
{ {6,0,1},{6,1,2},{6,3,3},{6,-1,4} },
{ {6,0,1},{6,1,2},{6,4,3},{6,-1,4} },
};
//===========================================================================
//----------
void Attack (void);
void Use (void);
void Search (objtype *ob);
void SelectWeapon (void);
void SelectItem (void);
//----------
boolean TryMove (objtype *ob);
void T_Player (objtype *ob);
void ClipMove (objtype *ob, int32_t xmove, int32_t ymove);
/*
=============================================================================
CONTROL STUFF
=============================================================================
*/
/*
======================
=
= CheckWeaponChange
=
= Keys 1-4 change weapons
=
======================
*/
void CheckWeaponChange (void)
{
int newWeapon = -1;
if (!gamestate.ammo) // must use knife with no ammo
return;
if(buttonstate[bt_nextweapon] && !buttonheld[bt_nextweapon])
{
newWeapon = gamestate.weapon + 1;
if(newWeapon > gamestate.bestweapon) newWeapon = 0;
}
else if(buttonstate[bt_prevweapon] && !buttonheld[bt_prevweapon])
{
newWeapon = gamestate.weapon - 1;
if(newWeapon < 0) newWeapon = gamestate.bestweapon;
}
else
{
for(int i = wp_knife; i <= gamestate.bestweapon; i++)
{
if (buttonstate[bt_readyknife + i - wp_knife])
{
newWeapon = i;
break;
}
}
}
if(newWeapon != -1)
{
gamestate.weapon = gamestate.chosenweapon = (weapontype) newWeapon;
DrawWeapon();
}
}
/*
=======================
=
= ControlMovement
=
= Takes controlx,controly, and buttonstate[bt_strafe]
=
= Changes the player's angle and position
=
= There is an angle hack because when going 70 fps, the roundoff becomes
= significant
=
=======================
*/
void ControlMovement (objtype *ob)
{
int angle;
int angleunits;
thrustspeed = 0;
if(buttonstate[bt_strafeleft])
{
angle = ob->angle + ANGLES/4;
if(angle >= ANGLES)
angle -= ANGLES;
if(buttonstate[bt_run] ^ always_run) // [FG] toggle always run
Thrust(angle, RUNMOVE * MOVESCALE * tics);
else
Thrust(angle, BASEMOVE * MOVESCALE * tics);
}
if(buttonstate[bt_straferight])
{
angle = ob->angle - ANGLES/4;
if(angle < 0)
angle += ANGLES;
if(buttonstate[bt_run] ^ always_run) // [FG] toggle always run
Thrust(angle, RUNMOVE * MOVESCALE * tics );
else
Thrust(angle, BASEMOVE * MOVESCALE * tics);
}
//
// side to side move
//
if (buttonstate[bt_strafe])
{
//
// strafing
//
//
if (controlx > 0)
{
angle = ob->angle - ANGLES/4;
if (angle < 0)
angle += ANGLES;
Thrust (angle,controlx*MOVESCALE); // move to left
}
else if (controlx < 0)
{
angle = ob->angle + ANGLES/4;
if (angle >= ANGLES)
angle -= ANGLES;
Thrust (angle,-controlx*MOVESCALE); // move to right
}
}
else
{
//
// not strafing
//
anglefrac += controlx;
angleunits = anglefrac/ANGLESCALE;
anglefrac -= angleunits*ANGLESCALE;
ob->angle -= angleunits;
if (ob->angle >= ANGLES)
ob->angle -= ANGLES;
if (ob->angle < 0)
ob->angle += ANGLES;
}
//
// forward/backwards move
//
if (controly < 0)
{
Thrust (ob->angle,-controly*MOVESCALE); // move forwards
}
else if (controly > 0)
{
angle = ob->angle + ANGLES/2;
if (angle >= ANGLES)
angle -= ANGLES;
Thrust (angle,controly*BACKMOVESCALE); // move backwards
}
if (gamestate.victoryflag) // watching the BJ actor
return;
}
/*
=============================================================================
STATUS WINDOW STUFF
=============================================================================
*/
/*
==================
=
= StatusDrawPic
=
==================
*/
void StatusDrawPic (unsigned x, unsigned y, unsigned picnum)
{
LatchDrawPicScaledCoord ((screenWidth-scaleFactor*320)/16 + scaleFactor*x,
screenHeight-scaleFactor*(STATUSLINES-y),picnum);
}
void StatusDrawFace(unsigned picnum)
{
StatusDrawPic(17, 4, picnum);
}
/*
==================
=
= DrawFace
=
==================
*/
void DrawFace (void)
{
if(viewsize == 21 && ingame) return;
if (SD_SoundPlaying() == GETGATLINGSND)
StatusDrawFace(GOTGATLINGPIC);
else if (gamestate.health)
{
#ifdef SPEAR
if (godmode)
StatusDrawFace(GODMODEFACE1PIC+gamestate.faceframe);
else
#endif
StatusDrawFace(FACE1APIC+3*((100-gamestate.health)/16)+gamestate.faceframe);
}
else
{
#ifndef SPEAR
if (LastAttacker && LastAttacker->obclass == needleobj)
StatusDrawFace(MUTANTBJPIC);
else
#endif
StatusDrawFace(FACE8APIC);
}
}
/*
===============
=
= UpdateFace
=
= Calls draw face if time to change
=
===============
*/
int facecount = 0;
int facetimes = 0;
void UpdateFace (void)
{
// don't make demo depend on sound playback
if(demoplayback || demorecord)
{
if(facetimes > 0)
{
facetimes--;
return;
}
}
else if(SD_SoundPlaying() == GETGATLINGSND)
return;
facecount += tics;
if (facecount > US_RndT())
{
gamestate.faceframe = (US_RndT()>>6);
if (gamestate.faceframe==3)
gamestate.faceframe = 1;
facecount = 0;
DrawFace ();
}
}
/*
===============
=
= LatchNumber
=
= right justifies and pads with blanks
=
===============
*/
static void LatchNumber (int x, int y, unsigned width, int32_t number)
{
unsigned length,c;
char str[20];
ltoa (number,str,10);
length = (unsigned) strlen (str);
while (length<width)
{
StatusDrawPic (x,y,N_BLANKPIC);
x++;
width--;
}
c = length <= width ? 0 : length-width;
while (c<length)
{
StatusDrawPic (x,y,str[c]-'0'+ N_0PIC);
x++;
c++;
}
}
/*
===============
=
= DrawHealth
=
===============
*/
void DrawHealth (void)
{
if(viewsize == 21 && ingame) return;
LatchNumber (21,16,3,gamestate.health);
}
/*
===============
=
= TakeDamage
=
===============
*/
void TakeDamage (int points,objtype *attacker)
{
LastAttacker = attacker;
if (gamestate.victoryflag)
return;
if (gamestate.difficulty==gd_baby)
points>>=2;
if (!godmode)
gamestate.health -= points;
if (gamestate.health<=0)
{
gamestate.health = 0;
playstate = ex_died;
killerobj = attacker;
}
if (godmode != 2)
StartDamageFlash (points);
DrawHealth ();
DrawFace ();
//
// MAKE BJ'S EYES BUG IF MAJOR DAMAGE!
//
#ifdef SPEAR
if (points > 30 && gamestate.health!=0 && !godmode && viewsize != 21)
{
StatusDrawFace(BJOUCHPIC);
facecount = 0;
}
#endif
}
/*
===============
=
= HealSelf
=
===============
*/
void HealSelf (int points)
{
gamestate.health += points;
if (gamestate.health>100)
gamestate.health = 100;
DrawHealth ();
DrawFace ();
}
//===========================================================================
/*
===============
=
= DrawLevel
=
===============
*/
void DrawLevel (void)
{
if(viewsize == 21 && ingame) return;
#ifdef SPEAR
if (gamestate.mapon == 20)
LatchNumber (2,16,2,18);
else
#endif
LatchNumber (2,16,2,gamestate.mapon+1);
}
//===========================================================================
/*
===============
=
= DrawLives
=
===============
*/
void DrawLives (void)
{
if(viewsize == 21 && ingame) return;
LatchNumber (14,16,1,gamestate.lives);
}
/*
===============
=
= GiveExtraMan
=
===============
*/
void GiveExtraMan (void)
{
if (gamestate.lives<9)
gamestate.lives++;
DrawLives ();
SD_PlaySound (BONUS1UPSND);
}
//===========================================================================
/*
===============
=
= DrawScore
=
===============
*/
void DrawScore (void)
{
if(viewsize == 21 && ingame) return;
LatchNumber (6,16,6,gamestate.score);
}
/*
===============
=
= GivePoints
=
===============
*/
void GivePoints (int32_t points)
{
gamestate.score += points;
while (gamestate.score >= gamestate.nextextra)
{
gamestate.nextextra += EXTRAPOINTS;
GiveExtraMan ();
}
DrawScore ();
}
//===========================================================================
/*
==================
=
= DrawWeapon
=
==================
*/
void DrawWeapon (void)
{
if(viewsize == 21 && ingame) return;
StatusDrawPic (32,8,KNIFEPIC+gamestate.weapon);
}
/*
==================
=
= DrawKeys
=
==================
*/
void DrawKeys (void)
{
if(viewsize == 21 && ingame) return;
if (gamestate.keys & 1)
StatusDrawPic (30,4,GOLDKEYPIC);
else
StatusDrawPic (30,4,NOKEYPIC);
if (gamestate.keys & 2)
StatusDrawPic (30,20,SILVERKEYPIC);
else
StatusDrawPic (30,20,NOKEYPIC);
}
/*
==================
=
= GiveWeapon
=
==================
*/
void GiveWeapon (int weapon)
{
GiveAmmo (6);
if (gamestate.bestweapon<weapon)
gamestate.bestweapon = gamestate.weapon
= gamestate.chosenweapon = (weapontype) weapon;
DrawWeapon ();
}
//===========================================================================
/*
===============
=
= DrawAmmo
=
===============
*/
void DrawAmmo (void)
{
if(viewsize == 21 && ingame) return;
LatchNumber (27,16,2,gamestate.ammo);
}
/*
===============
=
= GiveAmmo
=
===============
*/
void GiveAmmo (int ammo)
{
if (!gamestate.ammo) // knife was out
{
if (!gamestate.attackframe)
{
gamestate.weapon = gamestate.chosenweapon;
DrawWeapon ();
}
}
gamestate.ammo += ammo;
if (gamestate.ammo > 99)
gamestate.ammo = 99;
DrawAmmo ();
}
//===========================================================================
/*
==================
=
= GiveKey
=
==================
*/
void GiveKey (int key)
{
gamestate.keys |= (1<<key);
DrawKeys ();
}
/*
=============================================================================
MOVEMENT
=============================================================================
*/
/*
===================
=
= GetBonus
=
===================
*/
void GetBonus (statobj_t *check)
{
switch (check->itemnumber)
{
case bo_firstaid:
if (gamestate.health == 100)
return;
SD_PlaySound (HEALTH2SND);
HealSelf (25);
break;
case bo_key1:
case bo_key2:
case bo_key3:
case bo_key4:
GiveKey (check->itemnumber - bo_key1);
SD_PlaySound (GETKEYSND);
break;
case bo_cross:
SD_PlaySound (BONUS1SND);
GivePoints (100);
gamestate.treasurecount++;
break;
case bo_chalice:
SD_PlaySound (BONUS2SND);
GivePoints (500);
gamestate.treasurecount++;
break;
case bo_bible:
SD_PlaySound (BONUS3SND);
GivePoints (1000);
gamestate.treasurecount++;
break;
case bo_crown:
SD_PlaySound (BONUS4SND);
GivePoints (5000);
gamestate.treasurecount++;
break;
case bo_clip:
if (gamestate.ammo == 99)
return;
SD_PlaySound (GETAMMOSND);
GiveAmmo (8);
break;
case bo_clip2:
if (gamestate.ammo == 99)
return;
SD_PlaySound (GETAMMOSND);
GiveAmmo (4);
break;
#ifdef SPEAR
case bo_25clip:
if (gamestate.ammo == 99)
return;
SD_PlaySound (GETAMMOBOXSND);
GiveAmmo (25);
break;
#endif
case bo_machinegun:
SD_PlaySound (GETMACHINESND);
GiveWeapon (wp_machinegun);
break;
case bo_chaingun:
SD_PlaySound (GETGATLINGSND);
facetimes = 38;
GiveWeapon (wp_chaingun);
if(viewsize != 21)
StatusDrawFace (GOTGATLINGPIC);
facecount = 0;
break;
case bo_fullheal:
SD_PlaySound (BONUS1UPSND);
HealSelf (99);
GiveAmmo (25);
GiveExtraMan ();
gamestate.treasurecount++;
break;
case bo_food:
if (gamestate.health == 100)
return;
SD_PlaySound (HEALTH1SND);
HealSelf (10);
break;
case bo_alpo:
if (gamestate.health == 100)
return;
SD_PlaySound (HEALTH1SND);
HealSelf (4);
break;
case bo_gibs:
if (gamestate.health >10)
return;
SD_PlaySound (SLURPIESND);
HealSelf (1);
break;
#ifdef SPEAR
case bo_spear:
spearflag = true;
spearx = player->x;
speary = player->y;
spearangle = player->angle;
playstate = ex_completed;
#endif
}
StartBonusFlash ();
check->shapenum = -1; // remove from list
}
/*
===================
=
= TryMove
=
= returns true if move ok
= debug: use pointers to optimize
===================
*/
boolean TryMove (objtype *ob)
{
int xl,yl,xh,yh,x,y;
objtype *check;
int32_t deltax,deltay;
xl = (ob->x-PLAYERSIZE) >>TILESHIFT;
yl = (ob->y-PLAYERSIZE) >>TILESHIFT;
xh = (ob->x+PLAYERSIZE) >>TILESHIFT;
yh = (ob->y+PLAYERSIZE) >>TILESHIFT;
#define PUSHWALLMINDIST PLAYERSIZE
//
// check for solid walls
//
for (y=yl;y<=yh;y++)
{
for (x=xl;x<=xh;x++)
{
check = actorat[x][y];
if (check && !ISPOINTER(check))
{
if(tilemap[x][y]==64 && x==pwallx && y==pwally) // back of moving pushwall?
{
switch(pwalldir)
{
case di_north:
if(ob->y-PUSHWALLMINDIST<=(pwally<<TILESHIFT)+((63-pwallpos)<<10))
return false;
break;
case di_west:
if(ob->x-PUSHWALLMINDIST<=(pwallx<<TILESHIFT)+((63-pwallpos)<<10))
return false;
break;
case di_east:
if(ob->x+PUSHWALLMINDIST>=(pwallx<<TILESHIFT)+(pwallpos<<10))
return false;
break;
case di_south:
if(ob->y+PUSHWALLMINDIST>=(pwally<<TILESHIFT)+(pwallpos<<10))
return false;
break;
}
}
else return false;
}
}
}
//
// check for actors
//
if (yl>0)
yl--;
if (yh<MAPSIZE-1)
yh++;
if (xl>0)
xl--;
if (xh<MAPSIZE-1)
xh++;
for (y=yl;y<=yh;y++)
{
for (x=xl;x<=xh;x++)
{
check = actorat[x][y];
if (ISPOINTER(check) && check != player && (check->flags & FL_SHOOTABLE) )
{
deltax = ob->x - check->x;
if (deltax < -MINACTORDIST || deltax > MINACTORDIST)
continue;
deltay = ob->y - check->y;
if (deltay < -MINACTORDIST || deltay > MINACTORDIST)
continue;
return false;
}
}
}
return true;
}
/*
===================
=
= ClipMove
=
===================
*/
void ClipMove (objtype *ob, int32_t xmove, int32_t ymove)
{
int32_t basex,basey;
basex = ob->x;
basey = ob->y;
ob->x = basex+xmove;
ob->y = basey+ymove;
if (TryMove (ob))
return;
#ifndef REMDEBUG
if (noclip && ob->x > 2*TILEGLOBAL && ob->y > 2*TILEGLOBAL
&& ob->x < (((int32_t)(mapwidth-1))<<TILESHIFT)
&& ob->y < (((int32_t)(mapheight-1))<<TILESHIFT) )
return; // walk through walls
#endif
if (!SD_SoundPlaying())
SD_PlaySound (HITWALLSND);
ob->x = basex+xmove;
ob->y = basey;
if (TryMove (ob))
return;
ob->x = basex;
ob->y = basey+ymove;
if (TryMove (ob))
return;
ob->x = basex;
ob->y = basey;
}
//==========================================================================
/*
===================
=
= VictoryTile
=
===================
*/
void VictoryTile (void)
{
#ifndef SPEAR
SpawnBJVictory ();
#endif
gamestate.victoryflag = true;
}
/*
===================
=
= Thrust
=
===================
*/
// For player movement in demos exactly as in the original Wolf3D v1.4 source code
static fixed FixedByFracOrig(fixed a, fixed b)
{
int sign = 0;
if(b == 65536) b = 65535;
else if(b == -65536) b = 65535, sign = 1;
else if(b < 0) b = (-b), sign = 1;
if(a < 0)
{
a = -a;
sign = !sign;
}
fixed res = (fixed)(((int64_t) a * b) >> 16);
if(sign)
res = -res;
return res;
}
void Thrust (int angle, int32_t speed)
{
int32_t xmove,ymove;
unsigned offset;
//