mirror of https://github.com/FWGS/hlsdk-xash3d
282 lines
7.2 KiB
C++
282 lines
7.2 KiB
C++
/***
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*
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* Copyright (c) 1996-2002, Valve LLC. All rights reserved.
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*
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* This product contains software technology licensed from Id
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* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
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* All Rights Reserved.
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*
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* This source code contains proprietary and confidential information of
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* Valve LLC and its suppliers. Access to this code is restricted to
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* persons who have executed a written SDK license with Valve. Any access,
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* use or distribution of this code by or to any unlicensed person is illegal.
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*
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****/
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#include "extdll.h"
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#include "util.h"
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#include "cbase.h"
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#include "monsters.h"
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#include "schedule.h"
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#include "flyingmonster.h"
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#define FLYING_AE_FLAP (8)
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#define FLYING_AE_FLAPSOUND (9)
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extern DLL_GLOBAL edict_t *g_pBodyQueueHead;
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int CFlyingMonster :: CheckLocalMove ( const Vector &vecStart, const Vector &vecEnd, CBaseEntity *pTarget, float *pflDist )
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{
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// UNDONE: need to check more than the endpoint
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if (FBitSet(pev->flags, FL_SWIM) && (UTIL_PointContents(vecEnd) != CONTENTS_WATER))
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{
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// ALERT(at_aiconsole, "can't swim out of water\n");
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return FALSE;
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}
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TraceResult tr;
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UTIL_TraceHull( vecStart + Vector( 0, 0, 32 ), vecEnd + Vector( 0, 0, 32 ), dont_ignore_monsters, large_hull, edict(), &tr );
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// ALERT( at_console, "%.0f %.0f %.0f : ", vecStart.x, vecStart.y, vecStart.z );
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// ALERT( at_console, "%.0f %.0f %.0f\n", vecEnd.x, vecEnd.y, vecEnd.z );
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if (pflDist)
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{
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*pflDist = ( (tr.vecEndPos - Vector( 0, 0, 32 )) - vecStart ).Length();// get the distance.
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}
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// ALERT( at_console, "check %d %d %f\n", tr.fStartSolid, tr.fAllSolid, tr.flFraction );
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if (tr.fStartSolid || tr.flFraction < 1.0)
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{
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if ( pTarget && pTarget->edict() == gpGlobals->trace_ent )
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return LOCALMOVE_VALID;
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return LOCALMOVE_INVALID;
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}
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return LOCALMOVE_VALID;
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}
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BOOL CFlyingMonster :: FTriangulate ( const Vector &vecStart , const Vector &vecEnd, float flDist, CBaseEntity *pTargetEnt, Vector *pApex )
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{
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return CBaseMonster::FTriangulate( vecStart, vecEnd, flDist, pTargetEnt, pApex );
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}
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Activity CFlyingMonster :: GetStoppedActivity( void )
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{
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if ( pev->movetype != MOVETYPE_FLY ) // UNDONE: Ground idle here, IDLE may be something else
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return ACT_IDLE;
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return ACT_HOVER;
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}
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void CFlyingMonster :: Stop( void )
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{
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Activity stopped = GetStoppedActivity();
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if ( m_IdealActivity != stopped )
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{
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m_flightSpeed = 0;
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m_IdealActivity = stopped;
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}
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pev->angles.z = 0;
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pev->angles.x = 0;
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m_vecTravel = g_vecZero;
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}
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float CFlyingMonster :: ChangeYaw( int speed )
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{
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if ( pev->movetype == MOVETYPE_FLY )
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{
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float diff = FlYawDiff();
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float target = 0;
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if ( m_IdealActivity != GetStoppedActivity() )
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{
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if ( diff < -20 )
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target = 90;
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else if ( diff > 20 )
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target = -90;
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}
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pev->angles.z = UTIL_Approach( target, pev->angles.z, 220.0 * gpGlobals->frametime );
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}
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return CBaseMonster::ChangeYaw( speed );
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}
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void CFlyingMonster :: Killed( entvars_t *pevAttacker, int iGib )
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{
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pev->movetype = MOVETYPE_STEP;
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ClearBits( pev->flags, FL_ONGROUND );
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pev->angles.z = 0;
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pev->angles.x = 0;
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CBaseMonster::Killed( pevAttacker, iGib );
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}
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void CFlyingMonster :: HandleAnimEvent( MonsterEvent_t *pEvent )
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{
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switch( pEvent->event )
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{
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case FLYING_AE_FLAP:
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m_flightSpeed = 400;
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break;
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case FLYING_AE_FLAPSOUND:
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if ( m_pFlapSound )
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EMIT_SOUND( edict(), CHAN_BODY, m_pFlapSound, 1, ATTN_NORM );
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break;
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default:
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CBaseMonster::HandleAnimEvent( pEvent );
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break;
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}
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}
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void CFlyingMonster :: Move( float flInterval )
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{
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if ( pev->movetype == MOVETYPE_FLY )
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m_flGroundSpeed = m_flightSpeed;
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CBaseMonster::Move( flInterval );
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}
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BOOL CFlyingMonster:: ShouldAdvanceRoute( float flWaypointDist )
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{
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// Get true 3D distance to the goal so we actually reach the correct height
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if ( m_Route[ m_iRouteIndex ].iType & bits_MF_IS_GOAL )
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flWaypointDist = ( m_Route[ m_iRouteIndex ].vecLocation - pev->origin ).Length();
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if ( flWaypointDist <= 64 + (m_flGroundSpeed * gpGlobals->frametime) )
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return TRUE;
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return FALSE;
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}
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void CFlyingMonster::MoveExecute( CBaseEntity *pTargetEnt, const Vector &vecDir, float flInterval )
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{
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if ( pev->movetype == MOVETYPE_FLY )
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{
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if ( gpGlobals->time - m_stopTime > 1.0 )
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{
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if ( m_IdealActivity != m_movementActivity )
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{
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m_IdealActivity = m_movementActivity;
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m_flGroundSpeed = m_flightSpeed = 200;
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}
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}
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Vector vecMove = pev->origin + (( vecDir + (m_vecTravel * m_momentum) ).Normalize() * (m_flGroundSpeed * flInterval));
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if ( m_IdealActivity != m_movementActivity )
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{
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m_flightSpeed = UTIL_Approach( 100, m_flightSpeed, 75 * gpGlobals->frametime );
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if ( m_flightSpeed < 100 )
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m_stopTime = gpGlobals->time;
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}
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else
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m_flightSpeed = UTIL_Approach( 20, m_flightSpeed, 300 * gpGlobals->frametime );
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if ( CheckLocalMove ( pev->origin, vecMove, pTargetEnt, NULL ) )
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{
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m_vecTravel = (vecMove - pev->origin);
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m_vecTravel = m_vecTravel.Normalize();
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UTIL_MoveToOrigin(ENT(pev), vecMove, (m_flGroundSpeed * flInterval), MOVE_STRAFE);
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}
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else
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{
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m_IdealActivity = GetStoppedActivity();
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m_stopTime = gpGlobals->time;
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m_vecTravel = g_vecZero;
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}
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}
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else
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CBaseMonster::MoveExecute( pTargetEnt, vecDir, flInterval );
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}
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float CFlyingMonster::CeilingZ( const Vector &position )
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{
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TraceResult tr;
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Vector minUp = position;
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Vector maxUp = position;
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maxUp.z += 4096.0;
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UTIL_TraceLine(position, maxUp, ignore_monsters, NULL, &tr);
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if (tr.flFraction != 1.0)
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maxUp.z = tr.vecEndPos.z;
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if ((pev->flags) & FL_SWIM)
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{
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return UTIL_WaterLevel( position, minUp.z, maxUp.z );
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}
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return maxUp.z;
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}
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BOOL CFlyingMonster::ProbeZ( const Vector &position, const Vector &probe, float *pFraction)
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{
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int conPosition = UTIL_PointContents(position);
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if ( (((pev->flags) & FL_SWIM) == FL_SWIM) ^ (conPosition == CONTENTS_WATER))
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{
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// SWIMING & !WATER
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// or FLYING & WATER
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//
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*pFraction = 0.0;
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return TRUE; // We hit a water boundary because we are where we don't belong.
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}
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int conProbe = UTIL_PointContents(probe);
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if (conProbe == conPosition)
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{
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// The probe is either entirely inside the water (for fish) or entirely
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// outside the water (for birds).
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//
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*pFraction = 1.0;
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return FALSE;
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}
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Vector ProbeUnit = (probe-position).Normalize();
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float ProbeLength = (probe-position).Length();
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float maxProbeLength = ProbeLength;
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float minProbeLength = 0;
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float diff = maxProbeLength - minProbeLength;
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while (diff > 1.0)
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{
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float midProbeLength = minProbeLength + diff/2.0;
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Vector midProbeVec = midProbeLength * ProbeUnit;
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if (UTIL_PointContents(position+midProbeVec) == conPosition)
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{
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minProbeLength = midProbeLength;
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}
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else
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{
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maxProbeLength = midProbeLength;
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}
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diff = maxProbeLength - minProbeLength;
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}
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*pFraction = minProbeLength/ProbeLength;
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return TRUE;
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}
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float CFlyingMonster::FloorZ( const Vector &position )
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{
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TraceResult tr;
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Vector down = position;
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down.z -= 2048;
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UTIL_TraceLine( position, down, ignore_monsters, NULL, &tr );
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if ( tr.flFraction != 1.0 )
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return tr.vecEndPos.z;
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return down.z;
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}
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