void Interpolate(float UNUSED(frameTime), float frameOffset)
{
// Skip all the following computations if we have no sprites
if (m_Sprites.empty())
{
m_Enabled = false;
return;
}
// Disable rendering of the unit if it has no position
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
if (!cmpPosition || !cmpPosition->IsInWorld())
{
m_Enabled = false;
return;
}
// Find the precise position of the unit
CMatrix3D transform(cmpPosition->GetInterpolatedTransform(frameOffset, false));
CVector3D position(transform.GetTranslation());
// Move all the sprites to the desired offset relative to the unit
for (size_t i = 0; i < m_Sprites.size(); ++i)
m_Sprites[i].m_Position = position + m_SpriteOffsets[i];
m_Enabled = true;
}
float GetConstructionProgressOffset(const CVector3D& pos)
{
if (m_ConstructionProgress.IsZero())
return 0.0f;
CmpPtr<ICmpVisual> cmpVisual(GetEntityHandle());
if (!cmpVisual)
return 0.0f;
// We use selection boxes to calculate the model size, since the model could be offset
// TODO: this annoyingly shows decals, would be nice to hide them
CBoundingBoxOriented bounds = cmpVisual->GetSelectionBox();
if (bounds.IsEmpty())
return 0.0f;
float dy = 2.0f * bounds.m_HalfSizes.Y;
// If this is a floating unit, we want it to start all the way under the terrain,
// so find the difference between its current position and the terrain
CmpPtr<ICmpTerrain> cmpTerrain(GetSystemEntity());
if (cmpTerrain && (m_Floating || m_ActorFloating))
{
float ground = cmpTerrain->GetExactGroundLevel(pos.X, pos.Z);
dy += std::max(0.f, pos.Y - ground);
}
return (m_ConstructionProgress.ToFloat() - 1.0f) * dy;
}
virtual bool CheckDuplicateFoundation()
{
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
if (!cmpPosition)
return false; // error
if (!cmpPosition->IsInWorld())
return false; // no obstruction
CFixedVector2D pos = cmpPosition->GetPosition2D();
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return false; // error
// required precondition to use SkipControlGroupsRequireFlagObstructionFilter
if (m_ControlGroup == INVALID_ENTITY)
{
LOGERROR("[CmpObstruction] Cannot test for foundation obstructions; primary control group must be valid");
return false;
}
// Ignore collisions with entities unless they block foundations and match both control groups.
SkipTagRequireControlGroupsAndFlagObstructionFilter filter(m_Tag, m_ControlGroup, m_ControlGroup2,
ICmpObstructionManager::FLAG_BLOCK_FOUNDATION);
if (m_Type == UNIT)
return !cmpObstructionManager->TestUnitShape(filter, pos.X, pos.Y, m_Size0, NULL);
else
return !cmpObstructionManager->TestStaticShape(filter, pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, NULL );
}
virtual void SetActive(bool active)
{
if (active && !m_Active)
{
m_Active = true;
// Construct the obstruction shape
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return; // error
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
if (!cmpPosition)
return; // error
if (!cmpPosition->IsInWorld())
return; // don't need an obstruction
// TODO: code duplication from message handlers
CFixedVector2D pos = cmpPosition->GetPosition2D();
if (m_Type == STATIC)
m_Tag = cmpObstructionManager->AddStaticShape(GetEntityId(),
pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, m_Flags, m_ControlGroup, m_ControlGroup2);
else if (m_Type == UNIT)
m_Tag = cmpObstructionManager->AddUnitShape(GetEntityId(),
pos.X, pos.Y, m_Size0, m_Clearance, (flags_t)(m_Flags | (m_Moving ? ICmpObstructionManager::FLAG_MOVING : 0)), m_ControlGroup);
else
AddClusterShapes(pos.X, pos.Y, cmpPosition->GetRotation().Y);
}
else if (!active && m_Active)
{
m_Active = false;
// Delete the obstruction shape
// TODO: code duplication from message handlers
if (m_Tag.valid())
{
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return; // error
cmpObstructionManager->RemoveShape(m_Tag);
m_Tag = tag_t();
if (m_Type == CLUSTER)
RemoveClusterShapes();
}
}
// else we didn't change the active status
}
virtual EFoundationCheck CheckFoundation(std::string className, bool onlyCenterPoint)
{
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
if (!cmpPosition)
return FOUNDATION_CHECK_FAIL_ERROR; // error
if (!cmpPosition->IsInWorld())
return FOUNDATION_CHECK_FAIL_NO_OBSTRUCTION; // no obstruction
CFixedVector2D pos = cmpPosition->GetPosition2D();
CmpPtr<ICmpPathfinder> cmpPathfinder(GetSystemEntity());
if (!cmpPathfinder)
return FOUNDATION_CHECK_FAIL_ERROR; // error
// required precondition to use SkipControlGroupsRequireFlagObstructionFilter
if (m_ControlGroup == INVALID_ENTITY)
{
LOGERROR("[CmpObstruction] Cannot test for foundation obstructions; primary control group must be valid");
return FOUNDATION_CHECK_FAIL_ERROR;
}
// Get passability class
pass_class_t passClass = cmpPathfinder->GetPassabilityClass(className);
// Ignore collisions within the same control group, or with other non-foundation-blocking shapes.
// Note that, since the control group for each entity defaults to the entity's ID, this is typically
// equivalent to only ignoring the entity's own shape and other non-foundation-blocking shapes.
SkipControlGroupsRequireFlagObstructionFilter filter(m_ControlGroup, m_ControlGroup2,
ICmpObstructionManager::FLAG_BLOCK_FOUNDATION);
if (m_Type == UNIT)
return cmpPathfinder->CheckUnitPlacement(filter, pos.X, pos.Y, m_Size0, passClass, onlyCenterPoint);
else
return cmpPathfinder->CheckBuildingPlacement(filter, pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, GetEntityId(), passClass, onlyCenterPoint);
}
virtual bool GetObstructionSquare(ICmpObstructionManager::ObstructionSquare& out, bool previousPosition)
{
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
if (!cmpPosition)
return false; // error
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return false; // error
if (!cmpPosition->IsInWorld())
return false; // no obstruction square
CFixedVector2D pos;
if (previousPosition)
pos = cmpPosition->GetPreviousPosition2D();
else
pos = cmpPosition->GetPosition2D();
if (m_Type == UNIT)
out = cmpObstructionManager->GetUnitShapeObstruction(pos.X, pos.Y, m_Size0);
else
out = cmpObstructionManager->GetStaticShapeObstruction(pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1);
return true;
}
void ResolveFoundationCollisions()
{
if (m_Type == UNIT)
return;
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return;
CmpPtr<ICmpPosition> cmpPosition(GetEntityHandle());
if (!cmpPosition)
return; // error
if (!cmpPosition->IsInWorld())
return; // no obstruction
CFixedVector2D pos = cmpPosition->GetPosition2D();
// Ignore collisions within the same control group, or with other non-foundation-blocking shapes.
// Note that, since the control group for each entity defaults to the entity's ID, this is typically
// equivalent to only ignoring the entity's own shape and other non-foundation-blocking shapes.
SkipControlGroupsRequireFlagObstructionFilter filter(m_ControlGroup, m_ControlGroup2,
ICmpObstructionManager::FLAG_BLOCK_FOUNDATION);
std::vector<entity_id_t> collisions;
if (cmpObstructionManager->TestStaticShape(filter, pos.X, pos.Y, cmpPosition->GetRotation().Y, m_Size0, m_Size1, &collisions))
{
std::vector<entity_id_t> persistentEnts, normalEnts;
if (m_ControlPersist)
persistentEnts.push_back(m_ControlGroup);
else
normalEnts.push_back(GetEntityId());
for (std::vector<entity_id_t>::iterator it = collisions.begin(); it != collisions.end(); ++it)
{
entity_id_t ent = *it;
if (ent == INVALID_ENTITY)
continue;
CmpPtr<ICmpObstruction> cmpObstruction(GetSimContext(), ent);
if (!cmpObstruction->IsControlPersistent())
normalEnts.push_back(ent);
else
persistentEnts.push_back(cmpObstruction->GetControlGroup());
}
// The collision can't be resolved without usable persistent control groups.
if (persistentEnts.empty())
return;
// Attempt to replace colliding entities' control groups with a persistent one.
for (std::vector<entity_id_t>::iterator it = normalEnts.begin(); it != normalEnts.end(); ++it)
{
entity_id_t ent = *it;
CmpPtr<ICmpObstruction> cmpObstruction(GetSimContext(), ent);
for (std::vector<entity_id_t>::iterator it = persistentEnts.begin(); it != persistentEnts.end(); ++it)
{
entity_id_t persistent = *it;
entity_id_t group = cmpObstruction->GetControlGroup();
// Only clobber 'default' control groups.
if (group == ent)
cmpObstruction->SetControlGroup(persistent);
else if (cmpObstruction->GetControlGroup2() == INVALID_ENTITY && group != persistent)
cmpObstruction->SetControlGroup2(persistent);
}
}
}
}
//-----------------------------------------------------------------------------
// Spatial partition
//-----------------------------------------------------------------------------
void CCollisionProperty::CreatePartitionHandle()
{
// Put the entity into the spatial partition.
Assert( m_Partition == PARTITION_INVALID_HANDLE );
m_Partition = partition->CreateHandle( GetEntityHandle() );
}
virtual void Init(const CParamNode& paramNode)
{
// The minimum obstruction size is the navcell size * sqrt(2)
// This is enforced in the schema as a minimum of 1.5
fixed minObstruction = (Pathfinding::NAVCELL_SIZE.Square() * 2).Sqrt();
m_TemplateFlags = 0;
if (paramNode.GetChild("BlockMovement").ToBool())
m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_MOVEMENT;
if (paramNode.GetChild("BlockPathfinding").ToBool())
m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_PATHFINDING;
if (paramNode.GetChild("BlockFoundation").ToBool())
m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_FOUNDATION;
if (paramNode.GetChild("BlockConstruction").ToBool())
m_TemplateFlags |= ICmpObstructionManager::FLAG_BLOCK_CONSTRUCTION;
m_Flags = m_TemplateFlags;
if (paramNode.GetChild("DisableBlockMovement").ToBool())
m_Flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_MOVEMENT);
if (paramNode.GetChild("DisableBlockPathfinding").ToBool())
m_Flags &= (flags_t)(~ICmpObstructionManager::FLAG_BLOCK_PATHFINDING);
if (paramNode.GetChild("Unit").IsOk())
{
m_Type = UNIT;
CmpPtr<ICmpUnitMotion> cmpUnitMotion(GetEntityHandle());
if (cmpUnitMotion)
m_Clearance = cmpUnitMotion->GetUnitClearance();
}
else if (paramNode.GetChild("Static").IsOk())
{
m_Type = STATIC;
m_Size0 = paramNode.GetChild("Static").GetChild("@width").ToFixed();
m_Size1 = paramNode.GetChild("Static").GetChild("@depth").ToFixed();
ENSURE(m_Size0 > minObstruction);
ENSURE(m_Size1 > minObstruction);
}
else
{
m_Type = CLUSTER;
CFixedVector2D max = CFixedVector2D(fixed::FromInt(0), fixed::FromInt(0));
CFixedVector2D min = CFixedVector2D(fixed::FromInt(0), fixed::FromInt(0));
const CParamNode::ChildrenMap& clusterMap = paramNode.GetChild("Obstructions").GetChildren();
for(CParamNode::ChildrenMap::const_iterator it = clusterMap.begin(); it != clusterMap.end(); ++it)
{
Shape b;
b.size0 = it->second.GetChild("@width").ToFixed();
b.size1 = it->second.GetChild("@depth").ToFixed();
ENSURE(b.size0 > minObstruction);
ENSURE(b.size1 > minObstruction);
b.dx = it->second.GetChild("@x").ToFixed();
b.dz = it->second.GetChild("@z").ToFixed();
b.da = entity_angle_t::FromInt(0);
b.flags = m_Flags;
m_Shapes.push_back(b);
max.X = MAX(max.X, b.dx + b.size0/2);
max.Y = MAX(max.Y, b.dz + b.size1/2);
min.X = MIN(min.X, b.dx - b.size0/2);
min.Y = MIN(min.Y, b.dz - b.size1/2);
}
m_Size0 = fixed::FromInt(2).Multiply(MAX(max.X, -min.X));
m_Size1 = fixed::FromInt(2).Multiply(MAX(max.Y, -min.Y));
}
m_Active = paramNode.GetChild("Active").ToBool();
m_ControlPersist = paramNode.GetChild("ControlPersist").IsOk();
m_Tag = tag_t();
if (m_Type == CLUSTER)
m_ClusterTags.clear();
m_Moving = false;
m_ControlGroup = GetEntityId();
m_ControlGroup2 = INVALID_ENTITY;
}
