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Optimisation: Don't recalculate actor transform data for entities that haven't moved

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This was SVN commit r2862.
This commit is contained in:
Ykkrosh 2005-10-07 02:44:54 +00:00
parent dbd58f4011
commit 8529426fa8
2 changed files with 26 additions and 2 deletions
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24
source/simulation/Entity.cpp
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@ -87,6 +87,7 @@ CEntity::CEntity( CBaseEntity* base, CVector3D position, float orientation )
m_graphics_position = m_position;
m_graphics_orientation = m_orientation;
m_actor_transform_valid = false;
m_destroyed = false;
@ -573,6 +574,9 @@ void CEntity::checkGroup()
void CEntity::interpolate( float relativeoffset )
{
CVector3D old_graphics_position = m_graphics_position;
float old_graphics_orientation = m_graphics_orientation;
m_graphics_position = Interpolate<CVector3D>( m_position_previous, m_position, relativeoffset );
// Avoid wraparound glitches for interpolating angles.
@ -582,8 +586,24 @@ void CEntity::interpolate( float relativeoffset )
m_orientation_previous += 2 * PI;
m_graphics_orientation = Interpolate<float>( m_orientation_previous, m_orientation, relativeoffset );
snapToGround();
updateActorTransforms();
// Mark the actor transform data as invalid if the entity has moved since
// the last call to 'interpolate'.
// position.Y is ignored because we can't determine the new value without
// calling snapToGround, which is slow. TODO: This may need to be adjusted to
// handle flying units or moving terrain.
if( m_graphics_orientation != old_graphics_orientation ||
m_graphics_position.X != old_graphics_position.X ||
m_graphics_position.Z != old_graphics_position.Z )
m_actor_transform_valid = false;
// Update the actor transform data when necessary.
if( !m_actor_transform_valid )
{
snapToGround();
updateActorTransforms();
m_actor_transform_valid = true;
}
}
void CEntity::render()

4
source/simulation/Entity.h
View File

@ -106,6 +106,10 @@ public:
float m_orientation_previous;
float m_graphics_orientation;
// If the actor's current transform data is valid (i.e. the entity hasn't
// moved since it was last calculated).
bool m_actor_transform_valid;
//-- Scripts
// Get script execution contexts - always run in the context of the entity that fired it.