//-----------------------------------------------------------------------------
// Purpose: Attaches fire to the hitboxes of an animating character. The fire
// is distributed based on hitbox volumes -- it attaches to the larger
// hitboxes first.
//-----------------------------------------------------------------------------
void C_EntityFlame::AttachToHitBoxes( void )
{
m_pCachedModel = NULL;
C_BaseCombatCharacter *pAnimating = (C_BaseCombatCharacter *)m_hEntAttached.Get();
if (!pAnimating || !pAnimating->GetModel())
{
return;
}
studiohdr_t *pStudioHdr = modelinfo->GetStudiomodel( pAnimating->GetModel() );
if (!pStudioHdr)
{
return;
}
mstudiohitboxset_t *set = pStudioHdr->pHitboxSet( pAnimating->m_nHitboxSet );
if ( !set )
{
return;
}
if ( !set->numhitboxes )
{
return;
}
m_pCachedModel = pAnimating->GetModel();
int boneMask = BONE_USED_BY_HITBOX | BONE_USED_BY_ATTACHMENT;
studiocache_t *pcache = Studio_GetBoneCache( pStudioHdr, pAnimating->GetSequence(), pAnimating->m_flAnimTime, pAnimating->GetAbsAngles(), pAnimating->GetAbsOrigin(), boneMask );
if ( !pcache )
{
matrix3x4_t bonetoworld[MAXSTUDIOBONES];
pAnimating->SetupBones( bonetoworld, MAXSTUDIOBONES, boneMask, gpGlobals->curtime );
pcache = Studio_SetBoneCache( pStudioHdr, pAnimating->GetSequence(), pAnimating->m_flAnimTime, pAnimating->GetAbsAngles(), pAnimating->GetAbsOrigin(), boneMask, bonetoworld );
}
matrix3x4_t *hitboxbones[MAXSTUDIOBONES];
Studio_LinkHitboxCache( hitboxbones, pcache, pStudioHdr, set );
//
// Sort the hitboxes by volume.
//
HitboxVolume_t hitboxvolume[MAXSTUDIOBONES];
for ( int i = 0; i < set->numhitboxes; i++ )
{
mstudiobbox_t *pBox = set->pHitbox(i);
hitboxvolume[i].nIndex = i;
hitboxvolume[i].flVolume = CalcBoxVolume(pBox->bbmin, pBox->bbmax);
}
qsort(hitboxvolume, set->numhitboxes, sizeof(hitboxvolume[0]), (int (__cdecl *)(const void *, const void *))SortHitboxVolumes);
//
// Attach fire to the hitboxes.
//
for ( i = 0; i < NUM_HITBOX_FIRES; i++ )
{
//
// Pick the 5 biggest hitboxes, or random ones if there are less than 5 hitboxes,
// then pick random ones after that.
//
if (( i < 5 ) && ( i < set->numhitboxes ))
{
m_nHitbox[i] = hitboxvolume[i].nIndex;
}
else
{
m_nHitbox[i] = random->RandomInt( 0, set->numhitboxes - 1 );
}
mstudiobbox_t *pBox = set->pHitbox(m_nHitbox[i]);
m_pFireSmoke[i] = new C_FireSmoke;
//
// Calculate a position within the hitbox to place the fire.
//
m_vecFireOrigin[i] = Vector(random->RandomFloat(pBox->bbmin.x, pBox->bbmax.x), random->RandomFloat(pBox->bbmin.y, pBox->bbmax.y), random->RandomFloat(pBox->bbmin.z, pBox->bbmax.z));
Vector vecAbsOrigin;
VectorTransform(m_vecFireOrigin[i], *hitboxbones[m_nHitbox[i]], vecAbsOrigin);
m_pFireSmoke[i]->SetLocalOrigin( vecAbsOrigin );
//
// The first 2 fires emit smoke, the rest do not.
//
m_pFireSmoke[i]->m_nFlags = bitsFIRESMOKE_ACTIVE | bitsFIRESMOKE_GLOW;
if ( i < 2 )
{
m_pFireSmoke[i]->m_nFlags |= bitsFIRESMOKE_SMOKE;
}
m_pFireSmoke[i]->m_nFlameModelIndex = modelinfo->GetModelIndex("sprites/fire1.vmt");
m_pFireSmoke[i]->m_flScale = 0;
m_pFireSmoke[i]->m_flStartScale = 0;
m_pFireSmoke[i]->m_flScaleTime = 1.5;
m_pFireSmoke[i]->m_flScaleRegister = 0.1;
m_pFireSmoke[i]->m_flChildFlameSpread = 20.0;
m_pFireSmoke[i]->m_flScaleStart = 0;
m_pFireSmoke[i]->m_flScaleEnd = 0.00012f * hitboxvolume[i].flVolume;
m_pFireSmoke[i]->m_flScaleTimeStart = Helper_GetTime();
m_pFireSmoke[i]->m_flScaleTimeEnd = Helper_GetTime() + 2.0;
m_pFireSmoke[i]->StartClientOnly();
}
m_bAttachedToHitboxes = true;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void C_EntityFlame::UpdateHitBoxFlames( void )
{
C_BaseCombatCharacter *pAnimating = (C_BaseCombatCharacter *)m_hEntAttached.Get();
if (!pAnimating)
{
return;
}
if (pAnimating->GetModel() != m_pCachedModel)
{
if (m_pCachedModel != NULL)
{
// The model changed, we must reattach the flames.
DeleteHitBoxFlames();
AttachToHitBoxes();
}
if (m_pCachedModel == NULL)
{
// We tried to reattach and failed.
return;
}
}
studiohdr_t *pStudioHdr = modelinfo->GetStudiomodel( pAnimating->GetModel() );
if (!pStudioHdr)
{
return;
}
mstudiohitboxset_t *set = pStudioHdr->pHitboxSet( pAnimating->m_nHitboxSet );
if ( !set )
{
return;
}
if ( !set->numhitboxes )
{
return;
}
int boneMask = BONE_USED_BY_HITBOX | BONE_USED_BY_ATTACHMENT;
studiocache_t *pcache = Studio_GetBoneCache( pStudioHdr, pAnimating->GetSequence(), pAnimating->m_flAnimTime, pAnimating->GetAbsAngles(), pAnimating->GetAbsOrigin(), boneMask );
if ( !pcache )
{
matrix3x4_t bonetoworld[MAXSTUDIOBONES];
pAnimating->SetupBones( bonetoworld, MAXSTUDIOBONES, boneMask, gpGlobals->curtime );
pcache = Studio_SetBoneCache( pStudioHdr, pAnimating->GetSequence(), pAnimating->m_flAnimTime, pAnimating->GetAbsAngles(), pAnimating->GetAbsOrigin(), boneMask, bonetoworld );
}
matrix3x4_t *hitboxbones[MAXSTUDIOBONES];
Studio_LinkHitboxCache( hitboxbones, pcache, pStudioHdr, set );
for ( int i = 0; i < NUM_HITBOX_FIRES; i++ )
{
Vector vecAbsOrigin;
VectorTransform(m_vecFireOrigin[i], *hitboxbones[m_nHitbox[i]], vecAbsOrigin);
m_pFireSmoke[i]->SetLocalOrigin(vecAbsOrigin);
}
}