virtual void ReloadTerrain()
{
// TODO: should refactor this code to be nicer
u16 tiles = GetTilesPerSide();
u16 vertices = GetVerticesPerSide();
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (cmpObstructionManager)
{
cmpObstructionManager->SetBounds(entity_pos_t::Zero(), entity_pos_t::Zero(),
entity_pos_t::FromInt(tiles*(int)TERRAIN_TILE_SIZE),
entity_pos_t::FromInt(tiles*(int)TERRAIN_TILE_SIZE));
}
CmpPtr<ICmpRangeManager> cmpRangeManager(GetSystemEntity());
if (cmpRangeManager)
{
cmpRangeManager->SetBounds(entity_pos_t::Zero(), entity_pos_t::Zero(),
entity_pos_t::FromInt(tiles*(int)TERRAIN_TILE_SIZE),
entity_pos_t::FromInt(tiles*(int)TERRAIN_TILE_SIZE),
vertices);
}
if (CRenderer::IsInitialised())
g_Renderer.GetWaterManager()->SetMapSize(vertices);
MakeDirty(0, 0, tiles+1, tiles+1);
}
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
}
void UpdateControlGroups()
{
if (m_Tag.valid())
{
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (cmpObstructionManager)
{
if (m_Type == UNIT)
{
cmpObstructionManager->SetUnitControlGroup(m_Tag, m_ControlGroup);
}
else if (m_Type == STATIC)
{
cmpObstructionManager->SetStaticControlGroup(m_Tag, m_ControlGroup, m_ControlGroup2);
}
else
{
cmpObstructionManager->SetStaticControlGroup(m_Tag, m_ControlGroup, m_ControlGroup2);
for (size_t i = 0; i < m_ClusterTags.size(); ++i)
{
cmpObstructionManager->SetStaticControlGroup(m_ClusterTags[i], m_ControlGroup, m_ControlGroup2);
}
}
}
}
}
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 entity_pos_t GetHeightOffset()
{
if (m_RelativeToGround)
return m_Y;
// not relative to the ground, so the height offset is m_Y - ground height
entity_pos_t baseY;
CmpPtr<ICmpTerrain> cmpTerrain(GetSystemEntity());
if (cmpTerrain)
baseY = cmpTerrain->GetGroundLevel(m_X, m_Z);
if (m_Floating)
{
CmpPtr<ICmpWaterManager> cmpWaterManager(GetSystemEntity());
if (cmpWaterManager)
baseY = std::max(baseY, cmpWaterManager->GetWaterLevel(m_X, m_Z));
}
return m_Y - baseY;
}
virtual entity_pos_t GetHeightFixed()
{
if (!m_RelativeToGround)
return m_Y;
// relative to the ground, so the fixed height = ground height + m_Y
entity_pos_t baseY;
CmpPtr<ICmpTerrain> cmpTerrain(GetSystemEntity());
if (cmpTerrain)
baseY = cmpTerrain->GetGroundLevel(m_X, m_Z);
if (m_Floating)
{
CmpPtr<ICmpWaterManager> cmpWaterManager(GetSystemEntity());
if (cmpWaterManager)
baseY = std::max(baseY, cmpWaterManager->GetWaterLevel(m_X, m_Z));
}
return m_Y + baseY;
}
virtual u32 GetRadius()
{
u32 newRadius = m_Radius;
CmpPtr<ICmpValueModificationManager> cmpValueModificationManager(GetSystemEntity());
newRadius = cmpValueModificationManager->ApplyModifications(L"TerritoryInfluence/Radius", m_Radius, GetEntityId());
return newRadius;
}
virtual void SetMovingFlag(bool enabled)
{
m_Moving = enabled;
if (m_Tag.valid() && m_Type == UNIT)
{
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (cmpObstructionManager)
cmpObstructionManager->SetUnitMovingFlag(m_Tag, m_Moving);
}
}
bool CCmpPathfinder::CheckMovement(const IObstructionTestFilter& filter,
entity_pos_t x0, entity_pos_t z0, entity_pos_t x1, entity_pos_t z1, entity_pos_t r,
pass_class_t passClass)
{
// Test against obstructions first. filter may discard pathfinding-blocking obstructions.
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager || cmpObstructionManager->TestLine(filter, x0, z0, x1, z1, r))
return false;
// Then test against the passability grid.
return Pathfinding::CheckLineMovement(x0, z0, x1, z1, passClass, *m_Grid);
}
bool CCmpPathfinder::CheckMovement(const IObstructionTestFilter& filter,
entity_pos_t x0, entity_pos_t z0, entity_pos_t x1, entity_pos_t z1, entity_pos_t r,
pass_class_t passClass)
{
// Test against obstructions first
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return false;
if (cmpObstructionManager->TestLine(filter, x0, z0, x1, z1, r))
return false;
// Then test against the terrain
return Pathfinding::CheckLineMovement(x0, z0, x1, z1, passClass, *m_TerrainOnlyGrid);
}
virtual std::vector<entity_id_t> GetEntityCollisions(bool checkStructures, bool checkUnits)
{
// TODO: That function actually only checks for overlapping units when a new buidling is started.
// The name of the function should be changed and useless code removed.
std::vector<entity_id_t> ret;
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return ret; // error
flags_t flags = 0;
bool invertMatch = false;
// There are four 'block' flags: construction, foundation, movement,
// and pathfinding. Structures have all of these flags, while units
// block only movement and construction.
// The 'block construction' flag is common to both units and structures.
if (checkStructures && checkUnits)
flags = ICmpObstructionManager::FLAG_BLOCK_CONSTRUCTION;
// The 'block foundation' flag is exclusive to structures.
else if (checkStructures)
flags = ICmpObstructionManager::FLAG_BLOCK_FOUNDATION;
else if (checkUnits)
{
// As structures block a superset of what units do, matching units
// but not structures means excluding entities that contain any of
// the structure-specific flags (foundation and pathfinding).
invertMatch = true;
flags = ICmpObstructionManager::FLAG_BLOCK_FOUNDATION | ICmpObstructionManager::FLAG_BLOCK_PATHFINDING;
}
// Ignore collisions within the same control group, or with other shapes that don't match the filter.
// 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 shapes that don't match the filter.
SkipControlGroupsRequireFlagObstructionFilter filter(invertMatch, m_ControlGroup, m_ControlGroup2, flags);
ICmpObstructionManager::ObstructionSquare square;
if (!GetObstructionSquare(square))
return ret; // error
cmpObstructionManager->GetUnitsOnObstruction(square, ret, filter);
return ret;
}
ICmpObstruction::EFoundationCheck CCmpPathfinder::CheckBuildingPlacement(const IObstructionTestFilter& filter,
entity_pos_t x, entity_pos_t z, entity_pos_t a, entity_pos_t w,
entity_pos_t h, entity_id_t id, pass_class_t passClass, bool UNUSED(onlyCenterPoint))
{
// Check unit obstruction
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return ICmpObstruction::FOUNDATION_CHECK_FAIL_ERROR;
if (cmpObstructionManager->TestStaticShape(filter, x, z, a, w, h, NULL))
return ICmpObstruction::FOUNDATION_CHECK_FAIL_OBSTRUCTS_FOUNDATION;
// Test against terrain:
ICmpObstructionManager::ObstructionSquare square;
CmpPtr<ICmpObstruction> cmpObstruction(GetSimContext(), id);
if (!cmpObstruction || !cmpObstruction->GetObstructionSquare(square))
return ICmpObstruction::FOUNDATION_CHECK_FAIL_NO_OBSTRUCTION;
entity_pos_t expand;
const PathfinderPassability* passability = GetPassabilityFromMask(passClass);
if (passability)
expand = passability->m_Clearance;
SimRasterize::Spans spans;
SimRasterize::RasterizeRectWithClearance(spans, square, expand, Pathfinding::NAVCELL_SIZE);
for (SimRasterize::Span& span : spans)
{
i16 i0 = span.i0;
i16 i1 = span.i1;
i16 j = span.j;
// Fail if any span extends outside the grid
if (i0 < 0 || i1 > m_TerrainOnlyGrid->m_W || j < 0 || j > m_TerrainOnlyGrid->m_H)
return ICmpObstruction::FOUNDATION_CHECK_FAIL_TERRAIN_CLASS;
// Fail if any span includes an impassable tile
for (i16 i = i0; i < i1; ++i)
if (!IS_PASSABLE(m_TerrainOnlyGrid->get(i, j), passClass))
return ICmpObstruction::FOUNDATION_CHECK_FAIL_TERRAIN_CLASS;
}
return ICmpObstruction::FOUNDATION_CHECK_SUCCESS;
}
ICmpObstruction::EFoundationCheck CCmpPathfinder::CheckUnitPlacement(const IObstructionTestFilter& filter,
entity_pos_t x, entity_pos_t z, entity_pos_t r, pass_class_t passClass, bool UNUSED(onlyCenterPoint))
{
// Check unit obstruction
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
return ICmpObstruction::FOUNDATION_CHECK_FAIL_ERROR;
if (cmpObstructionManager->TestUnitShape(filter, x, z, r, NULL))
return ICmpObstruction::FOUNDATION_CHECK_FAIL_OBSTRUCTS_FOUNDATION;
// Test against terrain and static obstructions:
u16 i, j;
Pathfinding::NearestNavcell(x, z, i, j, m_MapSize*Pathfinding::NAVCELLS_PER_TILE, m_MapSize*Pathfinding::NAVCELLS_PER_TILE);
if (!IS_PASSABLE(m_Grid->get(i, j), passClass))
return ICmpObstruction::FOUNDATION_CHECK_FAIL_TERRAIN_CLASS;
// (Static obstructions will be redundantly tested against in both the
// obstruction-shape test and navcell-passability test, which is slightly
// inefficient but shouldn't affect behaviour)
return ICmpObstruction::FOUNDATION_CHECK_SUCCESS;
}
virtual void PlaySoundGroup(const std::wstring& name, entity_id_t source)
{
if ( ! g_SoundManager || (source == INVALID_ENTITY) )
return;
CmpPtr<ICmpRangeManager> cmpRangeManager(GetSystemEntity());
int currentPlayer = GetSimContext().GetCurrentDisplayedPlayer();
if ( !cmpRangeManager ||
( cmpRangeManager->GetLosVisibility(source, currentPlayer) != ICmpRangeManager::VIS_VISIBLE ) )
return;
CmpPtr<ICmpPosition> cmpPosition(GetSimContext(), source);
if (cmpPosition && cmpPosition->IsInWorld())
{
bool playerOwned = false;
CmpPtr<ICmpOwnership> cmpOwnership( GetSimContext(), source);
if (cmpOwnership)
playerOwned = cmpOwnership->GetOwner() == currentPlayer;
CVector3D sourcePos = CVector3D(cmpPosition->GetPosition());
g_SoundManager->PlayAsGroup(name, sourcePos, source, playerOwned);
}
}
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;
}
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 void HandleMessage(const CMessage& msg, bool UNUSED(global))
{
switch (msg.GetType())
{
case MT_Interpolate:
{
PROFILE("Position::Interpolate");
const CMessageInterpolate& msgData = static_cast<const CMessageInterpolate&> (msg);
float rotY = m_RotY.ToFloat();
if (rotY != m_InterpolatedRotY)
{
float delta = rotY - m_InterpolatedRotY;
// Wrap delta to -M_PI..M_PI
delta = fmodf(delta + (float)M_PI, 2*(float)M_PI); // range -2PI..2PI
if (delta < 0) delta += 2*(float)M_PI; // range 0..2PI
delta -= (float)M_PI; // range -M_PI..M_PI
// Clamp to max rate
float deltaClamped = clamp(delta, -m_RotYSpeed*msgData.deltaSimTime, +m_RotYSpeed*msgData.deltaSimTime);
// Calculate new orientation, in a peculiar way in order to make sure the
// result gets close to m_orientation (rather than being n*2*M_PI out)
m_InterpolatedRotY = rotY + deltaClamped - delta;
// update the visual XZ rotation
if (m_InWorld)
{
m_LastInterpolatedRotX = m_InterpolatedRotX;
m_LastInterpolatedRotZ = m_InterpolatedRotZ;
UpdateXZRotation();
}
UpdateMessageSubscriptions();
}
break;
}
case MT_TurnStart:
{
m_LastInterpolatedRotX = m_InterpolatedRotX;
m_LastInterpolatedRotZ = m_InterpolatedRotZ;
if (m_InWorld && (m_LastX != m_X || m_LastZ != m_Z))
UpdateXZRotation();
// Store the positions from the turn before
m_PrevX = m_LastX;
m_PrevZ = m_LastZ;
m_LastX = m_X;
m_LastZ = m_Z;
m_LastYDifference = entity_pos_t::Zero();
// warn when a position change also causes a territory change under the entity
if (m_InWorld)
{
player_id_t newTerritory;
CmpPtr<ICmpTerritoryManager> cmpTerritoryManager(GetSystemEntity());
if (cmpTerritoryManager)
newTerritory = cmpTerritoryManager->GetOwner(m_X, m_Z);
else
newTerritory = INVALID_PLAYER;
if (newTerritory != m_Territory)
{
m_Territory = newTerritory;
CMessageTerritoryPositionChanged msg(GetEntityId(), m_Territory);
GetSimContext().GetComponentManager().PostMessage(GetEntityId(), msg);
}
}
else if (m_Territory != INVALID_PLAYER)
{
m_Territory = INVALID_PLAYER;
CMessageTerritoryPositionChanged msg(GetEntityId(), m_Territory);
GetSimContext().GetComponentManager().PostMessage(GetEntityId(), msg);
}
break;
}
case MT_TerrainChanged:
case MT_WaterChanged:
{
AdvertiseInterpolatedPositionChanges();
break;
}
case MT_Deserialized:
{
Deserialized();
break;
}
}
}
virtual CMatrix3D GetInterpolatedTransform(float frameOffset)
{
if (m_TurretParent != INVALID_ENTITY)
{
CmpPtr<ICmpPosition> cmpPosition(GetSimContext(), m_TurretParent);
if (!cmpPosition)
{
LOGERROR("Turret with parent without position component");
CMatrix3D m;
m.SetIdentity();
return m;
}
if (!cmpPosition->IsInWorld())
{
LOGERROR("CCmpPosition::GetInterpolatedTransform called on turret entity when IsInWorld is false");
CMatrix3D m;
m.SetIdentity();
return m;
}
else
{
CMatrix3D parentTransformMatrix = cmpPosition->GetInterpolatedTransform(frameOffset);
CMatrix3D ownTransformation = CMatrix3D();
ownTransformation.SetYRotation(m_InterpolatedRotY);
ownTransformation.Translate(-m_TurretPosition.X.ToFloat(), m_TurretPosition.Y.ToFloat(), -m_TurretPosition.Z.ToFloat());
return parentTransformMatrix * ownTransformation;
}
}
if (!m_InWorld)
{
LOGERROR("CCmpPosition::GetInterpolatedTransform called on entity when IsInWorld is false");
CMatrix3D m;
m.SetIdentity();
return m;
}
float x, z, rotY;
GetInterpolatedPosition2D(frameOffset, x, z, rotY);
float baseY = 0;
if (m_RelativeToGround)
{
CmpPtr<ICmpTerrain> cmpTerrain(GetSystemEntity());
if (cmpTerrain)
baseY = cmpTerrain->GetExactGroundLevel(x, z);
if (m_Floating || m_ActorFloating)
{
CmpPtr<ICmpWaterManager> cmpWaterManager(GetSystemEntity());
if (cmpWaterManager)
baseY = std::max(baseY, cmpWaterManager->GetExactWaterLevel(x, z));
}
}
float y = baseY + m_Y.ToFloat() + Interpolate(-1 * m_LastYDifference.ToFloat(), 0.f, frameOffset);
CMatrix3D m;
// linear interpolation is good enough (for RotX/Z).
// As you always stay close to zero angle.
m.SetXRotation(Interpolate(m_LastInterpolatedRotX, m_InterpolatedRotX, frameOffset));
m.RotateZ(Interpolate(m_LastInterpolatedRotZ, m_InterpolatedRotZ, frameOffset));
CVector3D pos(x, y, z);
pos.Y += GetConstructionProgressOffset(pos);
m.RotateY(rotY + (float)M_PI);
m.Translate(pos);
return m;
}
Grid<u16> CCmpPathfinder::ComputeShoreGrid(bool expandOnWater)
{
PROFILE3("ComputeShoreGrid");
CmpPtr<ICmpWaterManager> cmpWaterManager(GetSystemEntity());
// TODO: these bits should come from ICmpTerrain
CTerrain& terrain = GetSimContext().GetTerrain();
// avoid integer overflow in intermediate calculation
const u16 shoreMax = 32767;
// First pass - find underwater tiles
Grid<u8> waterGrid(m_MapSize, m_MapSize);
for (u16 j = 0; j < m_MapSize; ++j)
{
for (u16 i = 0; i < m_MapSize; ++i)
{
fixed x, z;
Pathfinding::TileCenter(i, j, x, z);
bool underWater = cmpWaterManager && (cmpWaterManager->GetWaterLevel(x, z) > terrain.GetExactGroundLevelFixed(x, z));
waterGrid.set(i, j, underWater ? 1 : 0);
}
}
// Second pass - find shore tiles
Grid<u16> shoreGrid(m_MapSize, m_MapSize);
for (u16 j = 0; j < m_MapSize; ++j)
{
for (u16 i = 0; i < m_MapSize; ++i)
{
// Find a land tile
if (!waterGrid.get(i, j))
{
// If it's bordered by water, it's a shore tile
if ((i > 0 && waterGrid.get(i-1, j)) || (i > 0 && j < m_MapSize-1 && waterGrid.get(i-1, j+1)) || (i > 0 && j > 0 && waterGrid.get(i-1, j-1))
|| (i < m_MapSize-1 && waterGrid.get(i+1, j)) || (i < m_MapSize-1 && j < m_MapSize-1 && waterGrid.get(i+1, j+1)) || (i < m_MapSize-1 && j > 0 && waterGrid.get(i+1, j-1))
|| (j > 0 && waterGrid.get(i, j-1)) || (j < m_MapSize-1 && waterGrid.get(i, j+1))
)
shoreGrid.set(i, j, 0);
else
shoreGrid.set(i, j, shoreMax);
}
// If we want to expand on water, we want water tiles not to be shore tiles
else if (expandOnWater)
shoreGrid.set(i, j, shoreMax);
}
}
// Expand influences on land to find shore distance
for (u16 y = 0; y < m_MapSize; ++y)
{
u16 min = shoreMax;
for (u16 x = 0; x < m_MapSize; ++x)
{
if (!waterGrid.get(x, y) || expandOnWater)
{
u16 g = shoreGrid.get(x, y);
if (g > min)
shoreGrid.set(x, y, min);
else if (g < min)
min = g;
++min;
}
}
for (u16 x = m_MapSize; x > 0; --x)
{
if (!waterGrid.get(x-1, y) || expandOnWater)
{
u16 g = shoreGrid.get(x-1, y);
if (g > min)
shoreGrid.set(x-1, y, min);
else if (g < min)
min = g;
++min;
}
}
}
for (u16 x = 0; x < m_MapSize; ++x)
{
u16 min = shoreMax;
for (u16 y = 0; y < m_MapSize; ++y)
{
if (!waterGrid.get(x, y) || expandOnWater)
{
u16 g = shoreGrid.get(x, y);
if (g > min)
shoreGrid.set(x, y, min);
else if (g < min)
min = g;
++min;
}
}
for (u16 y = m_MapSize; y > 0; --y)
{
if (!waterGrid.get(x, y-1) || expandOnWater)
{
u16 g = shoreGrid.get(x, y-1);
if (g > min)
shoreGrid.set(x, y-1, min);
else if (g < min)
min = g;
++min;
}
}
}
return shoreGrid;
}
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);
}
}
}
}
virtual void HandleMessage(const CMessage& msg, bool UNUSED(global))
{
switch (msg.GetType())
{
case MT_PositionChanged:
{
if (!m_Active)
break;
const CMessagePositionChanged& data = static_cast<const CMessagePositionChanged&> (msg);
if (!data.inWorld && !m_Tag.valid())
break; // nothing needs to change
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
break; // error
if (data.inWorld && m_Tag.valid())
{
cmpObstructionManager->MoveShape(m_Tag, data.x, data.z, data.a);
if(m_Type == CLUSTER)
{
for (size_t i = 0; i < m_Shapes.size(); ++i)
{
Shape& b = m_Shapes[i];
fixed s, c;
sincos_approx(data.a, s, c);
cmpObstructionManager->MoveShape(m_ClusterTags[i], data.x + b.dx.Multiply(c) + b.dz.Multiply(s), data.z + b.dz.Multiply(c) - b.dx.Multiply(s), data.a + b.da);
}
}
}
else if (data.inWorld && !m_Tag.valid())
{
// Need to create a new pathfinder shape:
if (m_Type == STATIC)
m_Tag = cmpObstructionManager->AddStaticShape(GetEntityId(),
data.x, data.z, data.a, m_Size0, m_Size1, m_Flags, m_ControlGroup, m_ControlGroup2);
else if (m_Type == UNIT)
m_Tag = cmpObstructionManager->AddUnitShape(GetEntityId(),
data.x, data.z, m_Size0, m_Clearance, (flags_t)(m_Flags | (m_Moving ? ICmpObstructionManager::FLAG_MOVING : 0)), m_ControlGroup);
else
AddClusterShapes(data.x, data.x, data.a);
}
else if (!data.inWorld && m_Tag.valid())
{
cmpObstructionManager->RemoveShape(m_Tag);
m_Tag = tag_t();
if(m_Type == CLUSTER)
RemoveClusterShapes();
}
break;
}
case MT_Destroy:
{
if (m_Tag.valid())
{
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSystemEntity());
if (!cmpObstructionManager)
break; // error
cmpObstructionManager->RemoveShape(m_Tag);
m_Tag = tag_t();
if(m_Type == CLUSTER)
RemoveClusterShapes();
}
break;
}
}
}
