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gzdoom/src/thingdef_codeptr.cpp
Christoph Oelckers 16a2eb3b0c - Added SnowKate709's A_LookEx submission. 
SVN r611 (trunk)
2007-12-20 20:37:06 +00:00

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/*
** thingdef.cpp
**
** Code pointers for Actor definitions
**
**---------------------------------------------------------------------------
** Copyright 2002-2006 Christoph Oelckers
** Copyright 2004-2006 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
** 4. When not used as part of ZDoom or a ZDoom derivative, this code will be
** covered by 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 SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include "gi.h"
#include "actor.h"
#include "info.h"
#include "sc_man.h"
#include "tarray.h"
#include "w_wad.h"
#include "templates.h"
#include "r_defs.h"
#include "r_draw.h"
#include "a_pickups.h"
#include "s_sound.h"
#include "cmdlib.h"
#include "p_lnspec.h"
#include "p_enemy.h"
#include "a_action.h"
#include "decallib.h"
#include "m_random.h"
#include "autosegs.h"
#include "i_system.h"
#include "p_local.h"
#include "c_console.h"
#include "doomerrors.h"
#include "vectors.h"
#include "a_sharedglobal.h"
#include "a_doomglobal.h"
#include "thingdef/thingdef.h"
#include "v_video.h"
static FRandom pr_camissile ("CustomActorfire");
static FRandom pr_camelee ("CustomMelee");
static FRandom pr_cabullet ("CustomBullet");
static FRandom pr_cajump ("CustomJump");
static FRandom pr_cwbullet ("CustomWpBullet");
static FRandom pr_cwjump ("CustomWpJump");
static FRandom pr_cwpunch ("CustomWpPunch");
static FRandom pr_grenade ("ThrowGrenade");
static FRandom pr_crailgun ("CustomRailgun");
static FRandom pr_spawndebris ("SpawnDebris");
static FRandom pr_spawnitemex ("SpawnItemEx");
static FRandom pr_burst ("Burst");
// A truly awful hack to get to the state that called an action function
// without knowing whether it has been called from a weapon or actor.
FState * CallingState;
struct StateCallData
{
FState * State;
AActor * Item;
bool Result;
};
StateCallData * pStateCall;
//==========================================================================
//
// ACustomInventory :: CallStateChain
//
// Executes the code pointers in a chain of states
// until there is no next state
//
//==========================================================================
bool ACustomInventory::CallStateChain (AActor *actor, FState * State)
{
StateCallData StateCall;
StateCallData *pSavedCall = pStateCall;
bool result = false;
int counter = 0;
pStateCall = &StateCall;
StateCall.Item = this;
while (State != NULL)
{
// Assume success. The code pointer will set this to false if necessary
CallingState = StateCall.State = State;
if (State->GetAction() != NULL)
{
StateCall.Result = true;
State->GetAction() (actor);
// collect all the results. Even one successful call signifies overall success.
result |= StateCall.Result;
}
// Since there are no delays it is a good idea to check for infinite loops here!
counter++;
if (counter >= 10000) break;
if (StateCall.State == State)
{
// Abort immediately if the state jumps to itself!
if (State == State->GetNextState())
{
pStateCall = pSavedCall;
return false;
}
// If both variables are still the same there was no jump
// so we must advance to the next state.
State = State->GetNextState();
}
else
{
State = StateCall.State;
}
}
pStateCall = pSavedCall;
return result;
}
//==========================================================================
//
// Let's isolate all handling of CallingState in this one place
// so that removing it later becomes easier
//
//==========================================================================
int CheckIndex(int paramsize, FState ** pcallstate)
{
if (CallingState->ParameterIndex == 0) return -1;
unsigned int index = (unsigned int) CallingState->ParameterIndex-1;
if (index > StateParameters.Size()-paramsize) return -1;
if (pcallstate) *pcallstate=CallingState;
return index;
}
//==========================================================================
//
// Simple flag changers
//
//==========================================================================
void A_SetSolid(AActor * self)
{
self->flags |= MF_SOLID;
}
void A_UnsetSolid(AActor * self)
{
self->flags &= ~MF_SOLID;
}
void A_SetFloat(AActor * self)
{
self->flags |= MF_FLOAT;
}
void A_UnsetFloat(AActor * self)
{
self->flags &= ~(MF_FLOAT|MF_INFLOAT);
}
//==========================================================================
//
// Customizable attack functions which use actor parameters.
// I think this is among the most requested stuff ever ;-)
//
//==========================================================================
static void DoAttack (AActor *self, bool domelee, bool domissile)
{
int index=CheckIndex(4);
int MeleeDamage;
int MeleeSound;
FName MissileName;
fixed_t MissileHeight;
if (self->target == NULL) return;
if (index > 0)
{
MeleeDamage=StateParameters[index];
MeleeSound=StateParameters[index+1];
MissileName=(ENamedName)StateParameters[index+2];
MissileHeight=StateParameters[index+3];
}
else
{
MeleeDamage = self->GetClass()->Meta.GetMetaInt (ACMETA_MeleeDamage, 0);
MeleeSound = self->GetClass()->Meta.GetMetaInt (ACMETA_MeleeSound, 0);
MissileName=(ENamedName) self->GetClass()->Meta.GetMetaInt (ACMETA_MissileName, NAME_None);
MissileHeight= self->GetClass()->Meta.GetMetaFixed (ACMETA_MissileHeight, 32*FRACUNIT);
}
A_FaceTarget (self);
if (domelee && MeleeDamage>0 && self->CheckMeleeRange ())
{
int damage = pr_camelee.HitDice(MeleeDamage);
if (MeleeSound) S_SoundID (self, CHAN_WEAPON, MeleeSound, 1, ATTN_NORM);
P_DamageMobj (self->target, self, self, damage, NAME_Melee);
P_TraceBleed (damage, self->target, self);
}
else if (domissile && MissileName != NAME_None)
{
const PClass * ti=PClass::FindClass(MissileName);
if (ti)
{
// Although there is a P_SpawnMissileZ function its
// aiming is much too bad to be of any use
self->z+=MissileHeight-32*FRACUNIT;
AActor * missile = P_SpawnMissile (self, self->target, ti);
self->z-=MissileHeight-32*FRACUNIT;
if (missile)
{
// automatic handling of seeker missiles
if (missile->flags2&MF2_SEEKERMISSILE)
{
missile->tracer=self->target;
}
// set the health value so that the missile works properly
if (missile->flags4&MF4_SPECTRAL)
{
missile->health=-2;
}
}
}
}
}
void A_MeleeAttack(AActor * self)
{
DoAttack(self, true, false);
}
void A_MissileAttack(AActor * self)
{
DoAttack(self, false, true);
}
void A_ComboAttack(AActor * self)
{
DoAttack(self, true, true);
}
//==========================================================================
//
// Custom sound functions. These use misc1 and misc2 in the state structure
// This has been changed to use the parameter array instead of using the
// misc field directly so they can be used in weapon states
//
//==========================================================================
static void DoPlaySound(AActor * self, int channel)
{
int index=CheckIndex(1);
if (index<0) return;
int soundid = StateParameters[index];
S_SoundID (self, channel, soundid, 1, ATTN_NORM);
}
void A_PlaySound(AActor * self)
{
DoPlaySound(self, CHAN_BODY);
}
void A_PlayWeaponSound(AActor * self)
{
DoPlaySound(self, CHAN_WEAPON);
}
void A_StopSound(AActor * self)
{
S_StopSound(self, CHAN_VOICE);
}
void A_PlaySoundEx (AActor *self)
{
int index = CheckIndex(3);
if (index < 0) return;
int soundid = StateParameters[index];
ENamedName channel = ENamedName(StateParameters[index + 1]);
INTBOOL looping = StateParameters[index + 2];
if (channel < NAME_Auto || channel > NAME_SoundSlot7)
{
channel = NAME_Auto;
}
if (!looping)
{
S_SoundID (self, channel - NAME_Auto, soundid, 1, ATTN_NORM);
}
else
{
if (!S_IsActorPlayingSomething (self, channel - NAME_Auto, soundid))
{
S_LoopedSoundID (self, channel - NAME_Auto, soundid, 1, ATTN_NORM);
}
}
}
void A_StopSoundEx (AActor *self)
{
int index = CheckIndex (1);
if (index < 0) return;
ENamedName channel = ENamedName(StateParameters[index]);
if (channel > NAME_Auto && channel <= NAME_SoundSlot7)
{
S_StopSound (self, channel - NAME_Auto);
}
}
//==========================================================================
//
// Generic seeker missile function
//
//==========================================================================
void A_SeekerMissile(AActor * self)
{
int index=CheckIndex(2);
if (index<0) return;
P_SeekerMissile(self,
clamp<int>(EvalExpressionI (StateParameters[index], self), 0, 90) * ANGLE_1,
clamp<int>(EvalExpressionI (StateParameters[index+1], self), 0, 90) * ANGLE_1);
}
//==========================================================================
//
// Hitscan attack with a customizable amount of bullets (specified in damage)
//
//==========================================================================
void A_BulletAttack (AActor *self)
{
int i;
int bangle;
int slope;
if (!self->target) return;
A_FaceTarget (self);
bangle = self->angle;
slope = P_AimLineAttack (self, bangle, MISSILERANGE);
S_SoundID (self, CHAN_WEAPON, self->AttackSound, 1, ATTN_NORM);
for (i = self->GetMissileDamage (0, 1); i > 0; --i)
{
int angle = bangle + (pr_cabullet.Random2() << 20);
int damage = ((pr_cabullet()%5)+1)*3;
P_LineAttack(self, angle, MISSILERANGE, slope, damage,
NAME_None, NAME_BulletPuff);
}
}
//==========================================================================
//
// Resolves a label parameter
//
//==========================================================================
FState *P_GetState(AActor *self, FState *CallingState, int offset)
{
if (offset == 0)
{
return NULL; // 0 means 'no state'
}
else if (offset>0)
{
return CallingState + offset;
}
else if (self != NULL)
{
offset = -offset;
FName classname = JumpParameters[offset];
const PClass *cls;
cls = classname==NAME_None? RUNTIME_TYPE(self) : PClass::FindClass(classname);
if (cls==NULL || cls->ActorInfo==NULL) return NULL; // shouldn't happen
int numnames = (int)JumpParameters[offset+1];
FState *jumpto = cls->ActorInfo->FindState(numnames, &JumpParameters[offset+2]);
if (jumpto == NULL)
{
const char *dot="";
Printf("Jump target '");
if (classname != NAME_None) Printf("%s::", classname.GetChars());
for (int i=0;i<numnames;i++)
{
Printf("%s%s", dot, JumpParameters[offset+2+i].GetChars());
dot = ".";
}
Printf("' not found in %s\n", self->GetClass()->TypeName.GetChars());
}
return jumpto;
}
else return NULL;
}
//==========================================================================
//
// Do the state jump
//
//==========================================================================
static void DoJump(AActor * self, FState * CallingState, int offset)
{
if (pStateCall != NULL && CallingState == pStateCall->State)
{
FState *jumpto = P_GetState(pStateCall->Item, CallingState, offset);
if (jumpto == NULL) return;
pStateCall->State = jumpto;
}
else if (self->player != NULL && CallingState == self->player->psprites[ps_weapon].state)
{
FState *jumpto = P_GetState(self->player->ReadyWeapon, CallingState, offset);
if (jumpto == NULL) return;
P_SetPsprite(self->player, ps_weapon, jumpto);
}
else if (self->player != NULL && CallingState == self->player->psprites[ps_flash].state)
{
FState *jumpto = P_GetState(self->player->ReadyWeapon, CallingState, offset);
if (jumpto == NULL) return;
P_SetPsprite(self->player, ps_flash, jumpto);
}
else
{
FState *jumpto = P_GetState(self, CallingState, offset);
if (jumpto == NULL) return;
self->SetState (jumpto);
}
}
//==========================================================================
//
// State jump function
//
//==========================================================================
void A_Jump(AActor * self)
{
FState * CallingState;
int index = CheckIndex(3, &CallingState);
int maxchance;
if (index >= 0 &&
StateParameters[index] >= 2 &&
(maxchance = clamp<int>(EvalExpressionI (StateParameters[index + 1], self), 0, 256),
maxchance == 256 || pr_cajump() < maxchance))
{
if (StateParameters[index] == 2)
{
DoJump(self, CallingState, StateParameters[index + 2]);
}
else
{
DoJump(self, CallingState, StateParameters[index + (pr_cajump() % (StateParameters[index] - 1)) + 2]);
}
}
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
}
//==========================================================================
//
// State jump function
//
//==========================================================================
void A_JumpIfHealthLower(AActor * self)
{
FState * CallingState;
int index=CheckIndex(2, &CallingState);
if (index>=0 && self->health < EvalExpressionI (StateParameters[index], self))
DoJump(self, CallingState, StateParameters[index+1]);
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
}
//==========================================================================
//
// State jump function
//
//==========================================================================
void A_JumpIfCloser(AActor * self)
{
FState * CallingState;
int index = CheckIndex(2, &CallingState);
AActor * target;
if (!self->player)
{
target=self->target;
}
else
{
// Does the player aim at something that can be shot?
P_BulletSlope(self);
target = linetarget;
}
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
// No target - no jump
if (target==NULL) return;
fixed_t dist = fixed_t(EvalExpressionF (StateParameters[index], self) * FRACUNIT);
if (index > 0 && P_AproxDistance(self->x-target->x, self->y-target->y) < dist)
DoJump(self, CallingState, StateParameters[index+1]);
}
//==========================================================================
//
// State jump function
//
//==========================================================================
void DoJumpIfInventory(AActor * self, AActor * owner)
{
FState * CallingState;
int index=CheckIndex(3, &CallingState);
if (index<0) return;
ENamedName ItemType=(ENamedName)StateParameters[index];
int ItemAmount = EvalExpressionI (StateParameters[index+1], self);
int JumpOffset = StateParameters[index+2];
const PClass * Type=PClass::FindClass(ItemType);
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
if (!Type || owner == NULL) return;
AInventory * Item=owner->FindInventory(Type);
if (Item)
{
if (ItemAmount>0 && Item->Amount>=ItemAmount) DoJump(self, CallingState, JumpOffset);
else if (Item->Amount>=Item->MaxAmount) DoJump(self, CallingState, JumpOffset);
}
}
void A_JumpIfInventory(AActor * self)
{
DoJumpIfInventory(self, self);
}
void A_JumpIfInTargetInventory(AActor * self)
{
DoJumpIfInventory(self, self->target);
}
//==========================================================================
//
// Parameterized version of A_Explode
//
//==========================================================================
void A_ExplodeParms (AActor *self)
{
int damage;
int distance;
bool hurtSource;
int index=CheckIndex(3);
if (index>=0)
{
damage = EvalExpressionI (StateParameters[index], self);
distance = EvalExpressionI (StateParameters[index+1], self);
hurtSource = EvalExpressionN (StateParameters[index+2], self);
if (damage == 0) damage = 128;
if (distance == 0) distance = damage;
}
else
{
damage = self->GetClass()->Meta.GetMetaInt (ACMETA_ExplosionDamage, 128);
distance = self->GetClass()->Meta.GetMetaInt (ACMETA_ExplosionRadius, damage);
hurtSource = !self->GetClass()->Meta.GetMetaInt (ACMETA_DontHurtShooter);
}
P_RadiusAttack (self, self->target, damage, distance, self->DamageType, hurtSource);
if (self->z <= self->floorz + (distance<<FRACBITS))
{
P_HitFloor (self);
}
}
//==========================================================================
//
// A_RadiusThrust
//
//==========================================================================
void A_RadiusThrust (AActor *self)
{
int force = 0;
int distance = 0;
bool affectSource = true;
int index=CheckIndex(3);
if (index>=0)
{
force = EvalExpressionI (StateParameters[index], self);
distance = EvalExpressionI (StateParameters[index+1], self);
affectSource = EvalExpressionN (StateParameters[index+2], self);
}
if (force == 0) force = 128;
if (distance == 0) distance = force;
P_RadiusAttack (self, self->target, force, distance, self->DamageType, affectSource, false);
if (self->z <= self->floorz + (distance<<FRACBITS))
{
P_HitFloor (self);
}
}
//==========================================================================
//
// Execute a line special / script
//
//==========================================================================
void A_CallSpecial(AActor * self)
{
int index=CheckIndex(6);
if (index<0) return;
bool res = !!LineSpecials[StateParameters[index]](NULL, self, false,
EvalExpressionI (StateParameters[index+1], self),
EvalExpressionI (StateParameters[index+2], self),
EvalExpressionI (StateParameters[index+3], self),
EvalExpressionI (StateParameters[index+4], self),
EvalExpressionI (StateParameters[index+5], self));
if (pStateCall != NULL) pStateCall->Result = res;
}
//==========================================================================
//
// Checks whether this actor is a missile
// Unfortunately this was buggy in older versions of the code and many
// released DECORATE monsters rely on this bug so it can only be fixed
// with an optional flag
//
//==========================================================================
inline static bool isMissile(AActor * self, bool precise=true)
{
return self->flags&MF_MISSILE || (precise && self->GetDefault()->flags&MF_MISSILE);
}
//==========================================================================
//
// The ultimate code pointer: Fully customizable missiles!
//
//==========================================================================
enum CM_Flags
{
CMF_AIMMODE = 3,
CMF_TRACKOWNER = 4,
CMF_CHECKTARGETDEAD = 8,
};
void A_CustomMissile(AActor * self)
{
int index=CheckIndex(6);
if (index<0) return;
ENamedName MissileName=(ENamedName)StateParameters[index];
fixed_t SpawnHeight=fixed_t(EvalExpressionF (StateParameters[index+1], self) * FRACUNIT);
int Spawnofs_XY=EvalExpressionI (StateParameters[index+2], self);
angle_t Angle=angle_t(EvalExpressionF (StateParameters[index+3], self) * ANGLE_1);
int flags=EvalExpressionI (StateParameters[index+4], self);
angle_t pitch=angle_t(EvalExpressionF (StateParameters[index+5], self) * ANGLE_1);
int aimmode = flags & CMF_AIMMODE;
AActor * targ;
AActor * missile;
if (self->target != NULL || aimmode==2)
{
const PClass * ti=PClass::FindClass(MissileName);
if (ti)
{
angle_t ang = (self->angle - ANGLE_90) >> ANGLETOFINESHIFT;
fixed_t x = Spawnofs_XY * finecosine[ang];
fixed_t y = Spawnofs_XY * finesine[ang];
fixed_t z = SpawnHeight - 32*FRACUNIT + (self->player? self->player->crouchoffset : 0);
switch (aimmode)
{
case 0:
default:
// same adjustment as above (in all 3 directions this time) - for better aiming!
self->x+=x;
self->y+=y;
self->z+=z;
missile = P_SpawnMissile(self, self->target, ti);
self->x-=x;
self->y-=y;
self->z-=z;
break;
case 1:
missile = P_SpawnMissileXYZ(self->x+x, self->y+y, self->z+SpawnHeight, self, self->target, ti);
break;
case 2:
missile = P_SpawnMissileAngleZ(self, self->z+SpawnHeight, ti, self->angle, 0);
// It is not necessary to use the correct angle here.
// The only important thing is that the horizontal momentum is correct.
// Therefore use 0 as the missile's angle and simplify the calculations accordingly.
// The actual momentum vector is set below.
if (missile)
{
fixed_t vx = finecosine[pitch>>ANGLETOFINESHIFT];
fixed_t vz = finesine[pitch>>ANGLETOFINESHIFT];
missile->momx = FixedMul (vx, missile->Speed);
missile->momy = 0;
missile->momz = FixedMul (vz, missile->Speed);
}
break;
}
if (missile)
{
// Use the actual momentum instead of the missile's Speed property
// so that this can handle missiles with a high vertical velocity
// component properly.
FVector3 velocity (missile->momx, missile->momy, 0);
fixed_t missilespeed = (fixed_t)velocity.Length();
missile->angle += Angle;
ang = missile->angle >> ANGLETOFINESHIFT;
missile->momx = FixedMul (missilespeed, finecosine[ang]);
missile->momy = FixedMul (missilespeed, finesine[ang]);
// handle projectile shooting projectiles - track the
// links back to a real owner
if (isMissile(self, !!(flags & CMF_TRACKOWNER)))
{
AActor * owner=self ;//->target;
while (isMissile(owner, !!(flags & CMF_TRACKOWNER)) && owner->target) owner=owner->target;
targ=owner;
missile->target=owner;
// automatic handling of seeker missiles
if (self->flags & missile->flags2 & MF2_SEEKERMISSILE)
{
missile->tracer=self->tracer;
}
}
else if (missile->flags2&MF2_SEEKERMISSILE)
{
// automatic handling of seeker missiles
missile->tracer=self->target;
}
// set the health value so that the missile works properly
if (missile->flags4&MF4_SPECTRAL)
{
missile->health=-2;
}
}
}
}
else if (flags & CMF_CHECKTARGETDEAD)
{
// Target is dead and the attack shall be aborted.
if (self->SeeState != NULL) self->SetState(self->SeeState);
}
}
//==========================================================================
//
// An even more customizable hitscan attack
//
//==========================================================================
void A_CustomBulletAttack (AActor *self)
{
int index=CheckIndex(6);
if (index<0) return;
angle_t Spread_XY=angle_t(EvalExpressionF (StateParameters[index], self) * ANGLE_1);
angle_t Spread_Z=angle_t(EvalExpressionF (StateParameters[index+1], self) * ANGLE_1);
int NumBullets=EvalExpressionI (StateParameters[index+2], self);
int DamagePerBullet=EvalExpressionI (StateParameters[index+3], self);
ENamedName PuffType=(ENamedName)StateParameters[index+4];
fixed_t Range = fixed_t(EvalExpressionF (StateParameters[index+5], self) * FRACUNIT);
if(Range==0) Range=MISSILERANGE;
int i;
int bangle;
int bslope;
const PClass *pufftype;
if (self->target)
{
A_FaceTarget (self);
bangle = self->angle;
pufftype = PClass::FindClass(PuffType);
if (!pufftype) pufftype = PClass::FindClass(NAME_BulletPuff);
bslope = P_AimLineAttack (self, bangle, MISSILERANGE);
S_SoundID (self, CHAN_WEAPON, self->AttackSound, 1, ATTN_NORM);
for (i=0 ; i<NumBullets ; i++)
{
int angle = bangle + pr_cabullet.Random2() * (Spread_XY / 255);
int slope = bslope + pr_cabullet.Random2() * (Spread_Z / 255);
int damage = ((pr_cabullet()%3)+1) * DamagePerBullet;
P_LineAttack(self, angle, Range, slope, damage, GetDefaultByType(pufftype)->DamageType, pufftype);
}
}
}
//==========================================================================
//
// A fully customizable melee attack
//
//==========================================================================
void A_CustomMeleeAttack (AActor *self)
{
int index=CheckIndex(5);
if (index<0) return;
int damage = EvalExpressionI (StateParameters[index], self);
int MeleeSound = StateParameters[index+1];
int MissSound = StateParameters[index+2];
ENamedName DamageType = (ENamedName)StateParameters[index+3];
bool bleed = EvalExpressionN (StateParameters[index+4], self);
if (DamageType==NAME_None) DamageType = NAME_Melee; // Melee is the default type
if (!self->target)
return;
A_FaceTarget (self);
if (self->CheckMeleeRange ())
{
if (MeleeSound) S_SoundID (self, CHAN_WEAPON, MeleeSound, 1, ATTN_NORM);
P_DamageMobj (self->target, self, self, damage, DamageType);
if (bleed) P_TraceBleed (damage, self->target, self);
}
else
{
if (MissSound) S_SoundID (self, CHAN_WEAPON, MissSound, 1, ATTN_NORM);
}
}
//==========================================================================
//
// A fully customizable combo attack
//
//==========================================================================
void A_CustomComboAttack (AActor *self)
{
int index=CheckIndex(6);
if (index<0) return;
ENamedName MissileName=(ENamedName)StateParameters[index];
fixed_t SpawnHeight=fixed_t(EvalExpressionF (StateParameters[index+1], self) * FRACUNIT);
int damage = EvalExpressionI (StateParameters[index+2], self);
int MeleeSound = StateParameters[index+3];
ENamedName DamageType = (ENamedName)StateParameters[index+4];
bool bleed = EvalExpressionN (StateParameters[index+5], self);
if (!self->target)
return;
A_FaceTarget (self);
if (self->CheckMeleeRange ())
{
if (DamageType==NAME_None) DamageType = NAME_Melee; // Melee is the default type
if (MeleeSound) S_SoundID (self, CHAN_WEAPON, MeleeSound, 1, ATTN_NORM);
P_DamageMobj (self->target, self, self, damage, DamageType);
if (bleed) P_TraceBleed (damage, self->target, self);
}
else
{
const PClass * ti=PClass::FindClass(MissileName);
if (ti)
{
// Although there is a P_SpawnMissileZ function its
// aiming is much too bad to be of any use
self->z+=SpawnHeight-32*FRACUNIT;
AActor * missile = P_SpawnMissile (self, self->target, ti);
self->z-=SpawnHeight-32*FRACUNIT;
if (missile)
{
// automatic handling of seeker missiles
if (missile->flags2&MF2_SEEKERMISSILE)
{
missile->tracer=self->target;
}
// set the health value so that the missile works properly
if (missile->flags4&MF4_SPECTRAL)
{
missile->health=-2;
}
}
}
}
}
//==========================================================================
//
// State jump function
//
//==========================================================================
void A_JumpIfNoAmmo(AActor * self)
{
FState * CallingState;
int index=CheckIndex(1, &CallingState);
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
if (index<0 || !self->player || !self->player->ReadyWeapon || pStateCall != NULL) return; // only for weapons!
if (!self->player->ReadyWeapon->CheckAmmo(self->player->ReadyWeapon->bAltFire, false, true))
DoJump(self, CallingState, StateParameters[index]);
}
//==========================================================================
//
// An even more customizable hitscan attack
//
//==========================================================================
void A_FireBullets (AActor *self)
{
int index=CheckIndex(7);
if (index<0 || !self->player) return;
angle_t Spread_XY=angle_t(EvalExpressionF (StateParameters[index], self) * ANGLE_1);
angle_t Spread_Z=angle_t(EvalExpressionF (StateParameters[index+1], self) * ANGLE_1);
int NumberOfBullets=EvalExpressionI (StateParameters[index+2], self);
int DamagePerBullet=EvalExpressionI (StateParameters[index+3], self);
ENamedName PuffTypeName=(ENamedName)StateParameters[index+4];
bool UseAmmo=EvalExpressionN (StateParameters[index+5], self);
fixed_t Range=fixed_t(EvalExpressionF (StateParameters[index+6], self) * FRACUNIT);
const PClass * PuffType;
player_t * player=self->player;
AWeapon * weapon=player->ReadyWeapon;
int i;
int bangle;
int bslope;
if (UseAmmo && weapon)
{
if (!weapon->DepleteAmmo(weapon->bAltFire, true)) return; // out of ammo
}
if (Range == 0) Range = PLAYERMISSILERANGE;
static_cast<APlayerPawn *>(self)->PlayAttacking2 ();
P_BulletSlope(self);
bangle = self->angle;
bslope = bulletpitch;
PuffType = PClass::FindClass(PuffTypeName);
if (!PuffType) PuffType = PClass::FindClass(NAME_BulletPuff);
S_SoundID (self, CHAN_WEAPON, weapon->AttackSound, 1, ATTN_NORM);
if ((NumberOfBullets==1 && !player->refire) || NumberOfBullets==0)
{
int damage = ((pr_cwbullet()%3)+1)*DamagePerBullet;
P_LineAttack(self, bangle, Range, bslope, damage, GetDefaultByType(PuffType)->DamageType, PuffType);
}
else
{
if (NumberOfBullets == -1) NumberOfBullets = 1;
for (i=0 ; i<NumberOfBullets ; i++)
{
int angle = bangle + pr_cwbullet.Random2() * (Spread_XY / 255);
int slope = bslope + pr_cwbullet.Random2() * (Spread_Z / 255);
int damage = ((pr_cwbullet()%3)+1) * DamagePerBullet;
P_LineAttack(self, angle, Range, slope, damage, GetDefaultByType(PuffType)->DamageType, PuffType);
}
}
}
//==========================================================================
//
// A_FireProjectile
//
//==========================================================================
void A_FireCustomMissile (AActor * self)
{
int index=CheckIndex(6);
if (index<0 || !self->player) return;
ENamedName MissileName=(ENamedName)StateParameters[index];
angle_t Angle=angle_t(EvalExpressionF (StateParameters[index+1], self) * ANGLE_1);
bool UseAmmo=EvalExpressionN (StateParameters[index+2], self);
int SpawnOfs_XY=EvalExpressionI (StateParameters[index+3], self);
fixed_t SpawnHeight=fixed_t(EvalExpressionF (StateParameters[index+4], self) * FRACUNIT);
INTBOOL AimAtAngle=EvalExpressionI (StateParameters[index+5], self);
player_t *player=self->player;
AWeapon * weapon=player->ReadyWeapon;
if (UseAmmo && weapon)
{
if (!weapon->DepleteAmmo(weapon->bAltFire, true)) return; // out of ammo
}
const PClass * ti=PClass::FindClass(MissileName);
if (ti)
{
angle_t ang = (self->angle - ANGLE_90) >> ANGLETOFINESHIFT;
fixed_t x = SpawnOfs_XY * finecosine[ang];
fixed_t y = SpawnOfs_XY * finesine[ang];
fixed_t z = SpawnHeight;
fixed_t shootangle = self->angle;
if (AimAtAngle) shootangle+=Angle;
AActor * misl=P_SpawnPlayerMissile (self, x, y, z, ti, shootangle);
// automatic handling of seeker missiles
if (misl)
{
if (linetarget && misl->flags2&MF2_SEEKERMISSILE) misl->tracer=linetarget;
if (!AimAtAngle)
{
// This original implementation is to aim straight ahead and then offset
// the angle from the resulting direction.
FVector3 velocity(misl->momx, misl->momy, 0);
fixed_t missilespeed = (fixed_t)velocity.Length();
misl->angle += Angle;
angle_t an = misl->angle >> ANGLETOFINESHIFT;
misl->momx = FixedMul (missilespeed, finecosine[an]);
misl->momy = FixedMul (missilespeed, finesine[an]);
}
if (misl->flags4&MF4_SPECTRAL) misl->health=-1;
}
}
}
//==========================================================================
//
// A_CustomPunch
//
// Berserk is not handled here. That can be done with A_CheckIfInventory
//
//==========================================================================
void A_CustomPunch (AActor *self)
{
int index=CheckIndex(5);
if (index<0 || !self->player) return;
int Damage=EvalExpressionI (StateParameters[index], self);
bool norandom=!!EvalExpressionI (StateParameters[index+1], self);
bool UseAmmo=EvalExpressionN (StateParameters[index+2], self);
ENamedName PuffTypeName=(ENamedName)StateParameters[index+3];
fixed_t Range=fixed_t(EvalExpressionF (StateParameters[index+4], self) * FRACUNIT);
const PClass * PuffType;
player_t *player=self->player;
AWeapon * weapon=player->ReadyWeapon;
angle_t angle;
int pitch;
if (!norandom) Damage *= (pr_cwpunch()%8+1);
angle = self->angle + (pr_cwpunch.Random2() << 18);
if (Range == 0) Range = MELEERANGE;
pitch = P_AimLineAttack (self, angle, Range);
// only use ammo when actually hitting something!
if (UseAmmo && linetarget && weapon)
{
if (!weapon->DepleteAmmo(weapon->bAltFire, true)) return; // out of ammo
}
PuffType = PClass::FindClass(PuffTypeName);
if (!PuffType) PuffType = PClass::FindClass(NAME_BulletPuff);
P_LineAttack (self, angle, Range, pitch, Damage, GetDefaultByType(PuffType)->DamageType, PuffType);
// turn to face target
if (linetarget)
{
S_SoundID (self, CHAN_WEAPON, weapon->AttackSound, 1, ATTN_NORM);
self->angle = R_PointToAngle2 (self->x,
self->y,
linetarget->x,
linetarget->y);
}
}
//==========================================================================
//
// customizable railgun attack function
//
//==========================================================================
void A_RailAttack (AActor * self)
{
int index=CheckIndex(7);
if (index<0 || !self->player) return;
int Damage=EvalExpressionI (StateParameters[index], self);
int Spawnofs_XY=EvalExpressionI (StateParameters[index+1], self);
bool UseAmmo=EvalExpressionN (StateParameters[index+2], self);
int Color1=StateParameters[index+3];
int Color2=StateParameters[index+4];
bool Silent=!!EvalExpressionI (StateParameters[index+5], self);
float MaxDiff=EvalExpressionF (StateParameters[index+6], self);
ENamedName PuffTypeName=(ENamedName)StateParameters[index+7];
AWeapon * weapon=self->player->ReadyWeapon;
// only use ammo when actually hitting something!
if (UseAmmo)
{
if (!weapon->DepleteAmmo(weapon->bAltFire, true)) return; // out of ammo
}
P_RailAttack (self, Damage, Spawnofs_XY, Color1, Color2, MaxDiff, Silent, PuffTypeName);
}
//==========================================================================
//
// also for monsters
//
//==========================================================================
void A_CustomRailgun (AActor *actor)
{
if (!actor->target)
return;
int index=CheckIndex(7);
if (index<0) return;
int Damage=EvalExpressionI (StateParameters[index], actor);
int Spawnofs_XY=EvalExpressionI (StateParameters[index+1], actor);
int Color1=StateParameters[index+2];
int Color2=StateParameters[index+3];
bool Silent=!!EvalExpressionI (StateParameters[index+4], actor);
bool aim=!!EvalExpressionI (StateParameters[index+5], actor);
float MaxDiff=EvalExpressionF (StateParameters[index+6], actor);
ENamedName PuffTypeName=(ENamedName)StateParameters[index+7];
// [RH] Andy Baker's stealth monsters
if (actor->flags & MF_STEALTH)
{
actor->visdir = 1;
}
actor->flags &= ~MF_AMBUSH;
if (aim)
{
actor->angle = R_PointToAngle2 (actor->x,
actor->y,
actor->target->x,
actor->target->y);
}
actor->pitch = P_AimLineAttack (actor, actor->angle, MISSILERANGE);
// Let the aim trail behind the player
if (aim)
{
actor->angle = R_PointToAngle2 (actor->x,
actor->y,
actor->target->x - actor->target->momx * 3,
actor->target->y - actor->target->momy * 3);
if (actor->target->flags & MF_SHADOW)
{
actor->angle += pr_crailgun.Random2() << 21;
}
}
P_RailAttack (actor, Damage, Spawnofs_XY, Color1, Color2, MaxDiff, Silent, PuffTypeName);
}
//===========================================================================
//
// DoGiveInventory
//
//===========================================================================
static void DoGiveInventory(AActor * self, AActor * receiver)
{
int index=CheckIndex(2);
bool res=true;
if (index<0 || receiver == NULL) return;
ENamedName item =(ENamedName)StateParameters[index];
int amount=EvalExpressionI (StateParameters[index+1], self);
if (amount==0) amount=1;
const PClass * mi=PClass::FindClass(item);
if (mi)
{
AInventory *item = static_cast<AInventory *>(Spawn (mi, 0, 0, 0, NO_REPLACE));
if (item->IsKindOf(RUNTIME_CLASS(AHealth)))
{
item->Amount *= amount;
}
else
{
item->Amount = amount;
}
item->flags |= MF_DROPPED;
if (item->flags & MF_COUNTITEM)
{
item->flags&=~MF_COUNTITEM;
level.total_items--;
}
if (!item->TryPickup (receiver))
{
item->Destroy ();
res = false;
}
else res = true;
}
else res = false;
if (pStateCall != NULL) pStateCall->Result = res;
}
void A_GiveInventory(AActor * self)
{
DoGiveInventory(self, self);
}
void A_GiveToTarget(AActor * self)
{
DoGiveInventory(self, self->target);
}
//===========================================================================
//
// A_TakeInventory
//
//===========================================================================
void DoTakeInventory(AActor * self, AActor * receiver)
{
int index=CheckIndex(2);
if (index<0 || receiver == NULL) return;
ENamedName item =(ENamedName)StateParameters[index];
int amount=EvalExpressionI (StateParameters[index+1], self);
if (pStateCall != NULL) pStateCall->Result=false;
AInventory * inv = receiver->FindInventory(item);
if (inv && !inv->IsKindOf(RUNTIME_CLASS(AHexenArmor)))
{
if (inv->Amount > 0 && pStateCall != NULL) pStateCall->Result=true;
if (!amount || amount>=inv->Amount)
{
if (inv->ItemFlags&IF_KEEPDEPLETED) inv->Amount=0;
else inv->Destroy();
}
else inv->Amount-=amount;
}
}
void A_TakeInventory(AActor * self)
{
DoTakeInventory(self, self);
}
void A_TakeFromTarget(AActor * self)
{
DoTakeInventory(self, self->target);
}
//===========================================================================
//
// Common code for A_SpawnItem and A_SpawnItemEx
//
//===========================================================================
static void InitSpawnedItem(AActor *self, AActor *mo, INTBOOL transfer_translation, INTBOOL setmaster, INTBOOL nocheckpos)
{
if (mo)
{
AActor * originator = self;
if (transfer_translation && !(mo->flags2 & MF2_DONTTRANSLATE))
{
mo->Translation = self->Translation;
}
mo->angle=self->angle;
while (originator && isMissile(originator)) originator = originator->target;
if (mo->flags3&MF3_ISMONSTER)
{
if (!nocheckpos && !P_TestMobjLocation(mo))
{
// The monster is blocked so don't spawn it at all!
if (mo->CountsAsKill()) level.total_monsters--;
mo->Destroy();
if (pStateCall != NULL) pStateCall->Result=false; // for an inventory item's use state
return;
}
else if (originator)
{
if (originator->flags3&MF3_ISMONSTER)
{
// If this is a monster transfer all friendliness information
mo->CopyFriendliness(originator, true);
if (setmaster) mo->master = originator; // don't let it attack you (optional)!
}
else if (originator->player)
{
// A player always spawns a monster friendly to him
mo->flags|=MF_FRIENDLY;
mo->FriendPlayer = originator->player-players+1;
AActor * attacker=originator->player->attacker;
if (attacker)
{
if (!(attacker->flags&MF_FRIENDLY) ||
(deathmatch && attacker->FriendPlayer!=0 && attacker->FriendPlayer!=mo->FriendPlayer))
{
// Target the monster which last attacked the player
mo->target = attacker;
}
}
}
}
}
else
{
// If this is a missile or something else set the target to the originator
mo->target=originator? originator : self;
}
}
}
//===========================================================================
//
// A_SpawnItem
//
// Spawns an item in front of the caller like Heretic's time bomb
//
//===========================================================================
void A_SpawnItem(AActor * self)
{
FState * CallingState;
int index=CheckIndex(5, &CallingState);
if (index<0) return;
const PClass * missile= PClass::FindClass((ENamedName)StateParameters[index]);
fixed_t distance = fixed_t(EvalExpressionF (StateParameters[index+1], self) * FRACUNIT);
fixed_t zheight = fixed_t(EvalExpressionF (StateParameters[index+2], self) * FRACUNIT);
bool useammo = EvalExpressionN (StateParameters[index+3], self);
INTBOOL transfer_translation = EvalExpressionI (StateParameters[index+4], self);
if (!missile)
{
if (pStateCall != NULL) pStateCall->Result=false;
return;
}
// Don't spawn monsters if this actor has been massacred
if (self->DamageType == NAME_Massacre && GetDefaultByType(missile)->flags3&MF3_ISMONSTER) return;
if (distance==0)
{
// use the minimum distance that does not result in an overlap
distance=(self->radius+GetDefaultByType(missile)->radius)>>FRACBITS;
}
if (self->player && CallingState != self->state && (pStateCall==NULL || CallingState != pStateCall->State))
{
// Used from a weapon so use some ammo
AWeapon * weapon=self->player->ReadyWeapon;
if (!weapon) return;
if (useammo && !weapon->DepleteAmmo(weapon->bAltFire)) return;
}
AActor * mo = Spawn( missile,
self->x + FixedMul(distance, finecosine[self->angle>>ANGLETOFINESHIFT]),
self->y + FixedMul(distance, finesine[self->angle>>ANGLETOFINESHIFT]),
self->z - self->floorclip + zheight, ALLOW_REPLACE);
InitSpawnedItem(self, mo, transfer_translation, useammo, false);
}
//===========================================================================
//
// A_SpawnItemEx
//
// Enhanced spawning function
//
//===========================================================================
enum SIX_Flags
{
SIXF_TRANSFERTRANSLATION=1,
SIXF_ABSOLUTEPOSITION=2,
SIXF_ABSOLUTEANGLE=4,
SIXF_ABSOLUTEMOMENTUM=8,
SIXF_SETMASTER=16,
SIXF_NOCHECKPOSITION=32,
SIXF_TELEFRAG=64
};
void A_SpawnItemEx(AActor * self)
{
FState * CallingState;
int index=CheckIndex(9, &CallingState);
if (index<0) return;
const PClass * missile= PClass::FindClass((ENamedName)StateParameters[index]);
fixed_t xofs = fixed_t(EvalExpressionF (StateParameters[index+1], self) * FRACUNIT);
fixed_t yofs = fixed_t(EvalExpressionF (StateParameters[index+2], self) * FRACUNIT);
fixed_t zofs = fixed_t(EvalExpressionF (StateParameters[index+3], self) * FRACUNIT);
fixed_t xmom = fixed_t(EvalExpressionF (StateParameters[index+4], self) * FRACUNIT);
fixed_t ymom = fixed_t(EvalExpressionF (StateParameters[index+5], self) * FRACUNIT);
fixed_t zmom = fixed_t(EvalExpressionF (StateParameters[index+6], self) * FRACUNIT);
angle_t Angle= angle_t(EvalExpressionF (StateParameters[index+7], self) * ANGLE_1);
int flags = EvalExpressionI (StateParameters[index+8], self);
int chance = EvalExpressionI (StateParameters[index+9], self);
if (!missile)
{
if (pStateCall != NULL) pStateCall->Result=false;
return;
}
if (chance > 0 && pr_spawnitemex()<chance) return;
// Don't spawn monsters if this actor has been massacred
if (self->DamageType == NAME_Massacre && GetDefaultByType(missile)->flags3&MF3_ISMONSTER) return;
fixed_t x,y;
if (!(flags & SIXF_ABSOLUTEANGLE))
{
Angle += self->angle;
}
angle_t ang = Angle >> ANGLETOFINESHIFT;
if (flags & SIXF_ABSOLUTEPOSITION)
{
x = self->x + xofs;
y = self->y + yofs;
}
else
{
// in relative mode negative y values mean 'left' and positive ones mean 'right'
// This is the inverse orientation of the absolute mode!
x = self->x + FixedMul(xofs, finecosine[ang]) + FixedMul(yofs, finesine[ang]);
y = self->y + FixedMul(xofs, finesine[ang]) - FixedMul(yofs, finecosine[ang]);
}
if (!(flags & SIXF_ABSOLUTEMOMENTUM))
{
// Same orientation issue here!
fixed_t newxmom = FixedMul(xmom, finecosine[ang]) + FixedMul(ymom, finesine[ang]);
ymom = FixedMul(xmom, finesine[ang]) - FixedMul(ymom, finecosine[ang]);
xmom = newxmom;
}
AActor * mo = Spawn( missile, x, y, self->z + self->floorclip + zofs, ALLOW_REPLACE);
InitSpawnedItem(self, mo, (flags & SIXF_TRANSFERTRANSLATION), (flags&SIXF_SETMASTER), (flags&SIXF_NOCHECKPOSITION));
if (mo)
{
mo->momx=xmom;
mo->momy=ymom;
mo->momz=zmom;
mo->angle=Angle;
if (flags & SIXF_TELEFRAG) P_TeleportMove(mo, mo->x, mo->y, mo->z, true);
}
}
//===========================================================================
//
// A_ThrowGrenade
//
// Throws a grenade (like Hexen's fighter flechette)
//
//===========================================================================
void A_ThrowGrenade(AActor * self)
{
FState * CallingState;
int index=CheckIndex(5, &CallingState);
if (index<0) return;
const PClass * missile= PClass::FindClass((ENamedName)StateParameters[index]);
fixed_t zheight = fixed_t(EvalExpressionF (StateParameters[index+1], self) * FRACUNIT);
fixed_t xymom = fixed_t(EvalExpressionF (StateParameters[index+2], self) * FRACUNIT);
fixed_t zmom = fixed_t(EvalExpressionF (StateParameters[index+3], self) * FRACUNIT);
bool useammo = EvalExpressionN (StateParameters[index+4], self);
if (self->player && CallingState != self->state && (pStateCall==NULL || CallingState != pStateCall->State))
{
// Used from a weapon so use some ammo
AWeapon * weapon=self->player->ReadyWeapon;
if (!weapon) return;
if (useammo && !weapon->DepleteAmmo(weapon->bAltFire)) return;
}
AActor * bo;
bo = Spawn(missile, self->x, self->y,
self->z - self->floorclip + zheight + 35*FRACUNIT + (self->player? self->player->crouchoffset : 0),
ALLOW_REPLACE);
if (bo)
{
int pitch = self->pitch;
P_PlaySpawnSound(bo, self);
if (xymom) bo->Speed=xymom;
bo->angle = self->angle+(((pr_grenade()&7)-4)<<24);
bo->momz = zmom + 2*finesine[pitch>>ANGLETOFINESHIFT];
bo->z += 2 * finesine[pitch>>ANGLETOFINESHIFT];
P_ThrustMobj(bo, bo->angle, bo->Speed);
bo->momx += self->momx>>1;
bo->momy += self->momy>>1;
bo->target= self;
if (bo->flags4&MF4_RANDOMIZE)
{
bo->tics -= pr_grenade()&3;
if (bo->tics<1) bo->tics=1;
}
P_CheckMissileSpawn (bo);
}
else if (pStateCall != NULL) pStateCall->Result=false;
}
//===========================================================================
//
// A_Recoil
//
//===========================================================================
void A_Recoil(AActor * actor)
{
int index=CheckIndex(1, NULL);
if (index<0) return;
fixed_t xymom = fixed_t(EvalExpressionF (StateParameters[index], actor) * FRACUNIT);
angle_t angle = actor->angle + ANG180;
angle >>= ANGLETOFINESHIFT;
actor->momx += FixedMul (xymom, finecosine[angle]);
actor->momy += FixedMul (xymom, finesine[angle]);
}
//===========================================================================
//
// A_SelectWeapon
//
//===========================================================================
void A_SelectWeapon(AActor * actor)
{
int index=CheckIndex(1, NULL);
if (index<0 || actor->player == NULL) return;
AWeapon * weaponitem = static_cast<AWeapon*>(actor->FindInventory((ENamedName)StateParameters[index]));
if (weaponitem != NULL && weaponitem->IsKindOf(RUNTIME_CLASS(AWeapon)))
{
if (actor->player->ReadyWeapon != weaponitem)
{
actor->player->PendingWeapon = weaponitem;
}
}
else if (pStateCall != NULL) pStateCall->Result=false;
}
//===========================================================================
//
// A_Print
//
//===========================================================================
EXTERN_CVAR(Float, con_midtime)
void A_Print(AActor * actor)
{
int index=CheckIndex(3, NULL);
if (index<0) return;
if (actor->CheckLocalView (consoleplayer) ||
(actor->target!=NULL && actor->target->CheckLocalView (consoleplayer)))
{
float time = EvalExpressionF (StateParameters[index+1], actor);
FName fontname = (ENamedName)StateParameters[index+2];
FFont * oldfont = screen->Font;
float saved = con_midtime;
if (fontname != NAME_None)
{
FFont * font = V_GetFont(fontname);
if (font != NULL) screen->SetFont(font);
}
if (time > 0)
{
con_midtime = time;
}
C_MidPrint(FName((ENamedName)StateParameters[index]).GetChars());
screen->SetFont(oldfont);
con_midtime = saved;
}
}
//===========================================================================
//
// A_SetTranslucent
//
//===========================================================================
void A_SetTranslucent(AActor * self)
{
int index=CheckIndex(2, NULL);
if (index<0) return;
fixed_t alpha = fixed_t(EvalExpressionF (StateParameters[index], self) * FRACUNIT);
int mode = EvalExpressionI (StateParameters[index+1], self);
mode = mode == 0 ? STYLE_Translucent : mode == 2 ? STYLE_Fuzzy : STYLE_Add;
self->alpha=clamp<fixed_t>(alpha, 0, FRACUNIT);
if (mode != STYLE_Fuzzy)
{
if (self->alpha == 0) mode = STYLE_None;
else if (mode == STYLE_Translucent && self->alpha >= FRACUNIT) mode = STYLE_Normal;
}
self->RenderStyle=mode;
}
//===========================================================================
//
// A_FadeIn
//
// Fades the actor in
//
//===========================================================================
void A_FadeIn(AActor * self)
{
fixed_t reduce = 0;
int index=CheckIndex(1, NULL);
if (index>=0)
{
reduce = fixed_t(EvalExpressionF (StateParameters[index], self) * FRACUNIT);
}
if (reduce == 0) reduce = FRACUNIT/10;
if (self->RenderStyle==STYLE_Normal) self->RenderStyle=STYLE_Translucent;
self->alpha += reduce;
//if (self->alpha<=0) self->Destroy();
}
//===========================================================================
//
// A_FadeOut
//
// fades the actor out and destroys it when done
//
//===========================================================================
void A_FadeOut(AActor * self)
{
fixed_t reduce = 0;
int index=CheckIndex(1, NULL);
if (index>=0)
{
reduce = fixed_t(EvalExpressionF (StateParameters[index], self) * FRACUNIT);
}
if (reduce == 0) reduce = FRACUNIT/10;
if (self->RenderStyle==STYLE_Normal) self->RenderStyle=STYLE_Translucent;
self->alpha -= reduce;
if (self->alpha<=0) self->Destroy();
}
//===========================================================================
//
// A_SpawnDebris
//
//===========================================================================
void A_SpawnDebris(AActor * self)
{
int i;
AActor * mo;
const PClass * debris;
int index=CheckIndex(4, NULL);
if (index<0) return;
debris = PClass::FindClass((ENamedName)StateParameters[index]);
if (debris == NULL) return;
INTBOOL transfer_translation = EvalExpressionI (StateParameters[index+1], self);
fixed_t mult_h = fixed_t(EvalExpressionF (StateParameters[index], self) * FRACUNIT);
fixed_t mult_v = fixed_t(EvalExpressionF (StateParameters[index], self) * FRACUNIT);
// only positive values make sense here
if (mult_v<=0) mult_v=FRACUNIT;
if (mult_h<=0) mult_h=FRACUNIT;
for (i = 0; i < GetDefaultByType(debris)->health; i++)
{
mo = Spawn(debris, self->x+((pr_spawndebris()-128)<<12),
self->y+((pr_spawndebris()-128)<<12),
self->z+(pr_spawndebris()*self->height/256), ALLOW_REPLACE);
if (mo && transfer_translation)
{
mo->Translation = self->Translation;
}
if (mo && i < mo->GetClass()->ActorInfo->NumOwnedStates)
{
mo->SetState (mo->GetClass()->ActorInfo->OwnedStates + i);
mo->momz = FixedMul(mult_v, ((pr_spawndebris()&7)+5)*FRACUNIT);
mo->momx = FixedMul(mult_h, pr_spawndebris.Random2()<<(FRACBITS-6));
mo->momy = FixedMul(mult_h, pr_spawndebris.Random2()<<(FRACBITS-6));
}
}
}
//===========================================================================
//
// A_CheckSight
// jumps if no player can see this actor
//
//===========================================================================
void A_CheckSight(AActor * self)
{
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
for (int i=0;i<MAXPLAYERS;i++)
{
if (playeringame[i] && P_CheckSight(players[i].camera,self,true)) return;
}
FState * CallingState;
int index=CheckIndex(1, &CallingState);
if (index>=0) DoJump(self, CallingState, StateParameters[index]);
}
//===========================================================================
//
// Inventory drop
//
//===========================================================================
void A_DropInventory(AActor * self)
{
int index=CheckIndex(1, &CallingState);
if (index<0) return;
AInventory * inv = self->FindInventory((ENamedName)StateParameters[index]);
if (inv)
{
self->DropInventory(inv);
}
}
//===========================================================================
//
// A_SetBlend
//
//===========================================================================
void A_SetBlend(AActor * self)
{
int index=CheckIndex(3);
if (index<0) return;
PalEntry color = StateParameters[index];
float alpha = clamp<float> (EvalExpressionF (StateParameters[index+1], self), 0, 1);
int tics = EvalExpressionI (StateParameters[index+2], self);
PalEntry color2 = StateParameters[index+3];
if (color == MAKEARGB(255,255,255,255)) color=0;
if (color2 == MAKEARGB(255,255,255,255)) color2=0;
if (!color2.a)
color2 = color;
new DFlashFader(color.r/255.0f, color.g/255.0f, color.b/255.0f, alpha,
color2.r/255.0f, color2.g/255.0f, color2.b/255.0f, 0,
(float)tics/TICRATE, self);
}
//===========================================================================
//
// A_JumpIf
//
//===========================================================================
void A_JumpIf(AActor * self)
{
FState * CallingState;
int index=CheckIndex(2, &CallingState);
if (index<0) return;
INTBOOL expression = EvalExpressionI (StateParameters[index], self);
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
if (expression) DoJump(self, CallingState, StateParameters[index+1]);
}
//===========================================================================
//
// A_KillMaster
//
//===========================================================================
void A_KillMaster(AActor * self)
{
if (self->master != NULL)
{
P_DamageMobj(self->master, self, self, self->master->health, NAME_None, DMG_NO_ARMOR);
}
}
//===========================================================================
//
// A_KillChildren
//
//===========================================================================
void A_KillChildren(AActor * self)
{
TThinkerIterator<AActor> it;
AActor * mo;
while ( (mo = it.Next()) )
{
if (mo->master == self)
{
P_DamageMobj(mo, self, self, mo->health, NAME_None, DMG_NO_ARMOR);
}
}
}
//===========================================================================
//
// A_CountdownArg
//
//===========================================================================
void A_CountdownArg(AActor * self)
{
int index=CheckIndex(1);
if (index<0) return;
index = EvalExpressionI (StateParameters[index], self);
if (index<=0 || index>5) return;
if (!self->args[index]--)
{
if (self->flags&MF_MISSILE)
{
P_ExplodeMissile(self, NULL, NULL);
}
else if (self->flags&MF_SHOOTABLE)
{
P_DamageMobj (self, NULL, NULL, self->health, NAME_None);
}
else
{
self->SetState(self->FindState(NAME_Death));
}
}
}
//============================================================================
//
// A_Burst
//
//============================================================================
void A_Burst (AActor *actor)
{
int i, numChunks;
AActor * mo;
int index=CheckIndex(1, NULL);
if (index<0) return;
const PClass * chunk = PClass::FindClass((ENamedName)StateParameters[index]);
if (chunk == NULL) return;
actor->momx = actor->momy = actor->momz = 0;
actor->height = actor->GetDefault()->height;
// [RH] In Hexen, this creates a random number of shards (range [24,56])
// with no relation to the size of the actor shattering. I think it should
// base the number of shards on the size of the dead thing, so bigger
// things break up into more shards than smaller things.
// An actor with radius 20 and height 64 creates ~40 chunks.
numChunks = MAX<int> (4, (actor->radius>>FRACBITS)*(actor->height>>FRACBITS)/32);
i = (pr_burst.Random2()) % (numChunks/4);
for (i = MAX (24, numChunks + i); i >= 0; i--)
{
mo = Spawn(chunk,
actor->x + (((pr_burst()-128)*actor->radius)>>7),
actor->y + (((pr_burst()-128)*actor->radius)>>7),
actor->z + (pr_burst()*actor->height/255), ALLOW_REPLACE);
if (mo)
{
mo->momz = FixedDiv(mo->z-actor->z, actor->height)<<2;
mo->momx = pr_burst.Random2 () << (FRACBITS-7);
mo->momy = pr_burst.Random2 () << (FRACBITS-7);
mo->RenderStyle = actor->RenderStyle;
mo->alpha = actor->alpha;
mo->CopyFriendliness(actor, true);
}
}
// [RH] Do some stuff to make this more useful outside Hexen
if (actor->flags4 & MF4_BOSSDEATH)
{
A_BossDeath (actor);
}
A_NoBlocking (actor);
actor->Destroy ();
}
//===========================================================================
//
// A_CheckFloor
// [GRB] Jumps if actor is standing on floor
//
//===========================================================================
void A_CheckFloor (AActor *self)
{
FState *CallingState;
int index = CheckIndex (1, &CallingState);
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
if (self->z <= self->floorz && index >= 0)
{
DoJump (self, CallingState, StateParameters[index]);
}
}
//===========================================================================
//
// A_Stop
// resets all momentum of the actor to 0
//
//===========================================================================
void A_Stop (AActor *self)
{
self->momx = self->momy = self->momz = 0;
}
//===========================================================================
//
// A_Respawn
//
//===========================================================================
void A_Respawn (AActor *actor)
{
fixed_t x = actor->SpawnPoint[0] << FRACBITS;
fixed_t y = actor->SpawnPoint[1] << FRACBITS;
sector_t *sec;
actor->flags |= MF_SOLID;
sec = R_PointInSubsector (x, y)->sector;
actor->SetOrigin (x, y, sec->floorplane.ZatPoint (x, y));
actor->height = actor->GetDefault()->height;
if (P_TestMobjLocation (actor))
{
AActor *defs = actor->GetDefault();
actor->health = defs->health;
actor->flags = (defs->flags & ~MF_FRIENDLY) | (actor->flags & MF_FRIENDLY);
actor->flags2 = defs->flags2;
actor->flags3 = (defs->flags3 & ~(MF3_NOSIGHTCHECK | MF3_HUNTPLAYERS)) | (actor->flags3 & (MF3_NOSIGHTCHECK | MF3_HUNTPLAYERS));
actor->flags4 = (defs->flags4 & ~MF4_NOHATEPLAYERS) | (actor->flags4 & MF4_NOHATEPLAYERS);
actor->flags5 = defs->flags5;
actor->SetState (actor->SpawnState);
actor->renderflags &= ~RF_INVISIBLE;
int index=CheckIndex(1, NULL);
if (index<0 || EvalExpressionN (StateParameters[index], actor))
{
Spawn<ATeleportFog> (x, y, actor->z + TELEFOGHEIGHT, ALLOW_REPLACE);
}
if (actor->CountsAsKill()) level.total_monsters++;
}
else
{
actor->flags &= ~MF_SOLID;
}
}
//==========================================================================
//
// A_PlayerSkinCheck
//
//==========================================================================
void A_PlayerSkinCheck (AActor *actor)
{
if (pStateCall != NULL) pStateCall->Result=false; // Jumps should never set the result for inventory state chains!
if (actor->player != NULL &&
skins[actor->player->userinfo.skin].othergame)
{
int index = CheckIndex(1, &CallingState);
if (index >= 0)
{
DoJump(actor, CallingState, StateParameters[index]);
}
}
}
//===========================================================================
//
// A_SetGravity
//
//===========================================================================
void A_SetGravity(AActor * self)
{
int index=CheckIndex(1);
if (index<0) return;
self->gravity = clamp<fixed_t> (fixed_t(EvalExpressionF (StateParameters[index], self)*FRACUNIT), 0, FRACUNIT);
}
// [KS] *** Start of my modifications ***
//===========================================================================
//
// A_ClearTarget
//
//===========================================================================
void A_ClearTarget(AActor * self)
{
if (self->target != NULL)
{
self->target = NULL;
}
if (self->LastHeard != NULL)
{
self->LastHeard = NULL;
}
if (self->lastenemy != NULL)
{
self->lastenemy = NULL;
}
}
// [KS] *** End of my modifications ***
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