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mirror of https://github.com/FWGS/hlsdk-xash3d synced 2024-11-22 09:57:21 +01:00
hlsdk-xash3d/dlls/flyingmonster.cpp
2016-06-04 18:24:23 +05:00

282 lines
6.9 KiB
C++

/***
*
* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
*
* This product contains software technology licensed from Id
* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
* All Rights Reserved.
*
* This source code contains proprietary and confidential information of
* Valve LLC and its suppliers. Access to this code is restricted to
* persons who have executed a written SDK license with Valve. Any access,
* use or distribution of this code by or to any unlicensed person is illegal.
*
****/
#include "extdll.h"
#include "util.h"
#include "cbase.h"
#include "monsters.h"
#include "schedule.h"
#include "flyingmonster.h"
#define FLYING_AE_FLAP (8)
#define FLYING_AE_FLAPSOUND (9)
extern DLL_GLOBAL edict_t *g_pBodyQueueHead;
int CFlyingMonster :: CheckLocalMove ( const Vector &vecStart, const Vector &vecEnd, CBaseEntity *pTarget, float *pflDist )
{
// UNDONE: need to check more than the endpoint
if (FBitSet(pev->flags, FL_SWIM) && (UTIL_PointContents(vecEnd) != CONTENTS_WATER))
{
// ALERT(at_aiconsole, "can't swim out of water\n");
return FALSE;
}
TraceResult tr;
UTIL_TraceHull( vecStart + Vector( 0, 0, 32 ), vecEnd + Vector( 0, 0, 32 ), dont_ignore_monsters, large_hull, edict(), &tr );
// ALERT( at_console, "%.0f %.0f %.0f : ", vecStart.x, vecStart.y, vecStart.z );
// ALERT( at_console, "%.0f %.0f %.0f\n", vecEnd.x, vecEnd.y, vecEnd.z );
if (pflDist)
{
*pflDist = ( (tr.vecEndPos - Vector( 0, 0, 32 )) - vecStart ).Length();// get the distance.
}
// ALERT( at_console, "check %d %d %f\n", tr.fStartSolid, tr.fAllSolid, tr.flFraction );
if (tr.fStartSolid || tr.flFraction < 1.0)
{
if ( pTarget && pTarget->edict() == gpGlobals->trace_ent )
return LOCALMOVE_VALID;
return LOCALMOVE_INVALID;
}
return LOCALMOVE_VALID;
}
BOOL CFlyingMonster :: FTriangulate ( const Vector &vecStart , const Vector &vecEnd, float flDist, CBaseEntity *pTargetEnt, Vector *pApex )
{
return CBaseMonster::FTriangulate( vecStart, vecEnd, flDist, pTargetEnt, pApex );
}
Activity CFlyingMonster :: GetStoppedActivity( void )
{
if ( pev->movetype != MOVETYPE_FLY ) // UNDONE: Ground idle here, IDLE may be something else
return ACT_IDLE;
return ACT_HOVER;
}
void CFlyingMonster :: Stop( void )
{
Activity stopped = GetStoppedActivity();
if ( m_IdealActivity != stopped )
{
m_flightSpeed = 0;
m_IdealActivity = stopped;
}
pev->angles.z = 0;
pev->angles.x = 0;
m_vecTravel = g_vecZero;
}
float CFlyingMonster :: ChangeYaw( int speed )
{
if ( pev->movetype == MOVETYPE_FLY )
{
float diff = FlYawDiff();
float target = 0;
if ( m_IdealActivity != GetStoppedActivity() )
{
if ( diff < -20 )
target = 90;
else if ( diff > 20 )
target = -90;
}
pev->angles.z = UTIL_Approach( target, pev->angles.z, 220.0 * gpGlobals->frametime );
}
return CBaseMonster::ChangeYaw( speed );
}
void CFlyingMonster :: Killed( entvars_t *pevAttacker, int iGib )
{
pev->movetype = MOVETYPE_STEP;
ClearBits( pev->flags, FL_ONGROUND );
pev->angles.z = 0;
pev->angles.x = 0;
CBaseMonster::Killed( pevAttacker, iGib );
}
void CFlyingMonster :: HandleAnimEvent( MonsterEvent_t *pEvent )
{
switch( pEvent->event )
{
case FLYING_AE_FLAP:
m_flightSpeed = 400;
break;
case FLYING_AE_FLAPSOUND:
if ( m_pFlapSound )
EMIT_SOUND( edict(), CHAN_BODY, m_pFlapSound, 1, ATTN_NORM );
break;
default:
CBaseMonster::HandleAnimEvent( pEvent );
break;
}
}
void CFlyingMonster :: Move( float flInterval )
{
if ( pev->movetype == MOVETYPE_FLY )
m_flGroundSpeed = m_flightSpeed;
CBaseMonster::Move( flInterval );
}
BOOL CFlyingMonster:: ShouldAdvanceRoute( float flWaypointDist )
{
// Get true 3D distance to the goal so we actually reach the correct height
if ( m_Route[ m_iRouteIndex ].iType & bits_MF_IS_GOAL )
flWaypointDist = ( m_Route[ m_iRouteIndex ].vecLocation - pev->origin ).Length();
if ( flWaypointDist <= 64 + (m_flGroundSpeed * gpGlobals->frametime) )
return TRUE;
return FALSE;
}
void CFlyingMonster::MoveExecute( CBaseEntity *pTargetEnt, const Vector &vecDir, float flInterval )
{
if ( pev->movetype == MOVETYPE_FLY )
{
if ( gpGlobals->time - m_stopTime > 1.0 )
{
if ( m_IdealActivity != m_movementActivity )
{
m_IdealActivity = m_movementActivity;
m_flGroundSpeed = m_flightSpeed = 200;
}
}
Vector vecMove = pev->origin + (( vecDir + (m_vecTravel * m_momentum) ).Normalize() * (m_flGroundSpeed * flInterval));
if ( m_IdealActivity != m_movementActivity )
{
m_flightSpeed = UTIL_Approach( 100, m_flightSpeed, 75 * gpGlobals->frametime );
if ( m_flightSpeed < 100 )
m_stopTime = gpGlobals->time;
}
else
m_flightSpeed = UTIL_Approach( 20, m_flightSpeed, 300 * gpGlobals->frametime );
if ( CheckLocalMove ( pev->origin, vecMove, pTargetEnt, NULL ) )
{
m_vecTravel = (vecMove - pev->origin);
m_vecTravel = m_vecTravel.Normalize();
UTIL_MoveToOrigin(ENT(pev), vecMove, (m_flGroundSpeed * flInterval), MOVE_STRAFE);
}
else
{
m_IdealActivity = GetStoppedActivity();
m_stopTime = gpGlobals->time;
m_vecTravel = g_vecZero;
}
}
else
CBaseMonster::MoveExecute( pTargetEnt, vecDir, flInterval );
}
float CFlyingMonster::CeilingZ( const Vector &position )
{
TraceResult tr;
Vector minUp = position;
Vector maxUp = position;
maxUp.z += 4096.0;
UTIL_TraceLine(position, maxUp, ignore_monsters, NULL, &tr);
if (tr.flFraction != 1.0)
maxUp.z = tr.vecEndPos.z;
if ((pev->flags) & FL_SWIM)
{
return UTIL_WaterLevel( position, minUp.z, maxUp.z );
}
return maxUp.z;
}
BOOL CFlyingMonster::ProbeZ( const Vector &position, const Vector &probe, float *pFraction)
{
int conPosition = UTIL_PointContents(position);
if ( (((pev->flags) & FL_SWIM) == FL_SWIM) ^ (conPosition == CONTENTS_WATER))
{
// SWIMING & !WATER
// or FLYING & WATER
//
*pFraction = 0.0;
return TRUE; // We hit a water boundary because we are where we don't belong.
}
int conProbe = UTIL_PointContents(probe);
if (conProbe == conPosition)
{
// The probe is either entirely inside the water (for fish) or entirely
// outside the water (for birds).
//
*pFraction = 1.0;
return FALSE;
}
Vector ProbeUnit = (probe-position).Normalize();
float ProbeLength = (probe-position).Length();
float maxProbeLength = ProbeLength;
float minProbeLength = 0;
float diff = maxProbeLength - minProbeLength;
while (diff > 1.0)
{
float midProbeLength = minProbeLength + diff/2.0;
Vector midProbeVec = midProbeLength * ProbeUnit;
if (UTIL_PointContents(position+midProbeVec) == conPosition)
{
minProbeLength = midProbeLength;
}
else
{
maxProbeLength = midProbeLength;
}
diff = maxProbeLength - minProbeLength;
}
*pFraction = minProbeLength/ProbeLength;
return TRUE;
}
float CFlyingMonster::FloorZ( const Vector &position )
{
TraceResult tr;
Vector down = position;
down.z -= 2048;
UTIL_TraceLine( position, down, ignore_monsters, NULL, &tr );
if ( tr.flFraction != 1.0 )
return tr.vecEndPos.z;
return down.z;
}