void ActorViewer::SetActor(const CStrW& name, const CStrW& animation, player_id_t playerID)
{
bool needsAnimReload = false;
CStrW id = name;
// Recreate the entity, if we don't have one or if the new one is different
if (m.Entity == INVALID_ENTITY || id != m.CurrentUnitID)
{
// Delete the old entity (if any)
if (m.Entity != INVALID_ENTITY)
{
m.Simulation2.DestroyEntity(m.Entity);
m.Simulation2.FlushDestroyedEntities();
m.Entity = INVALID_ENTITY;
}
// Clear particles associated with deleted entity
g_Renderer.GetParticleManager().ClearUnattachedEmitters();
// If there's no actor to display, return with nothing loaded
if (id.empty())
return;
m.Entity = m.Simulation2.AddEntity(L"preview|" + id);
if (m.Entity == INVALID_ENTITY)
return;
CmpPtr<ICmpPosition> cmpPosition(m.Simulation2, m.Entity);
if (cmpPosition)
{
ssize_t c = TERRAIN_TILE_SIZE * m.Terrain.GetPatchesPerSide()*PATCH_SIZE/2;
cmpPosition->JumpTo(entity_pos_t::FromInt(c), entity_pos_t::FromInt(c));
cmpPosition->SetYRotation(entity_angle_t::Pi());
}
CmpPtr<ICmpOwnership> cmpOwnership(m.Simulation2, m.Entity);
if (cmpOwnership)
cmpOwnership->SetOwner(playerID);
needsAnimReload = true;
}
if (animation != m.CurrentUnitAnim)
needsAnimReload = true;
if (needsAnimReload)
{
CStr anim = animation.ToUTF8().LowerCase();
// Emulate the typical simulation animation behaviour
float speed;
float repeattime = 0.f;
if (anim == "walk")
{
CmpPtr<ICmpUnitMotion> cmpUnitMotion(m.Simulation2, m.Entity);
if (cmpUnitMotion)
speed = cmpUnitMotion->GetWalkSpeed().ToFloat();
else
speed = 7.f; // typical unit speed
m.CurrentSpeed = speed;
}
else if (anim == "run")
{
CmpPtr<ICmpUnitMotion> cmpUnitMotion(m.Simulation2, m.Entity);
if (cmpUnitMotion)
speed = cmpUnitMotion->GetRunSpeed().ToFloat();
else
speed = 12.f; // typical unit speed
m.CurrentSpeed = speed;
}
else if (anim == "melee")
{
speed = 1.f; // speed will be ignored if we have a repeattime
m.CurrentSpeed = 0.f;
CStr code = "var cmp = Engine.QueryInterface("+CStr::FromUInt(m.Entity)+", IID_Attack); " +
"if (cmp) cmp.GetTimers(cmp.GetBestAttack()).repeat; else 0;";
m.Simulation2.GetScriptInterface().Eval(code.c_str(), repeattime);
}
else
{
// Play the animation at normal speed, but movement speed is zero
speed = 1.f;
m.CurrentSpeed = 0.f;
}
CStr sound;
if (anim == "melee")
sound = "attack";
else if (anim == "build")
sound = "build";
else if (anim.Find("gather_") == 0)
sound = anim;
std::wstring soundgroup;
if (!sound.empty())
{
CStr code = "var cmp = Engine.QueryInterface("+CStr::FromUInt(m.Entity)+", IID_Sound); " +
"if (cmp) cmp.GetSoundGroup('"+sound+"'); else '';";
m.Simulation2.GetScriptInterface().Eval(code.c_str(), soundgroup);
}
CmpPtr<ICmpVisual> cmpVisual(m.Simulation2, m.Entity);
if (cmpVisual)
{
// TODO: SetEntitySelection(anim)
cmpVisual->SelectAnimation(anim, false, fixed::FromFloat(speed), soundgroup);
if (repeattime)
cmpVisual->SetAnimationSyncRepeat(fixed::FromFloat(repeattime));
}
// update prop list for new entity/animation (relies on needsAnimReload also getting called for entire entity changes)
m.UpdatePropList();
}
m.CurrentUnitID = id;
m.CurrentUnitAnim = animation;
}
virtual CFixedVector3D PickSpawnPoint(entity_id_t spawned)
{
// Try to find a free space around the building's footprint.
// (Note that we use the footprint, not the obstruction shape - this might be a bit dodgy
// because the footprint might be inside the obstruction, but it hopefully gives us a nicer
// shape.)
const CFixedVector3D error(fixed::FromInt(-1), fixed::FromInt(-1), fixed::FromInt(-1));
CmpPtr<ICmpPosition> cmpPosition(GetSimContext(), GetEntityId());
if (!cmpPosition || !cmpPosition->IsInWorld())
return error;
CmpPtr<ICmpObstructionManager> cmpObstructionManager(GetSimContext(), SYSTEM_ENTITY);
if (!cmpObstructionManager)
return error;
entity_pos_t spawnedRadius;
ICmpObstructionManager::tag_t spawnedTag;
CmpPtr<ICmpObstruction> cmpSpawnedObstruction(GetSimContext(), spawned);
if (cmpSpawnedObstruction)
{
spawnedRadius = cmpSpawnedObstruction->GetUnitRadius();
spawnedTag = cmpSpawnedObstruction->GetObstruction();
}
// else use zero radius
// Get passability class from UnitMotion
CmpPtr<ICmpUnitMotion> cmpUnitMotion(GetSimContext(), spawned);
if (!cmpUnitMotion)
return error;
ICmpPathfinder::pass_class_t spawnedPass = cmpUnitMotion->GetPassabilityClass();
CmpPtr<ICmpPathfinder> cmpPathfinder(GetSimContext(), SYSTEM_ENTITY);
if (!cmpPathfinder)
return error;
CFixedVector2D initialPos = cmpPosition->GetPosition2D();
entity_angle_t initialAngle = cmpPosition->GetRotation().Y;
// Max spawning distance in tiles
const i32 maxSpawningDistance = 4;
if (m_Shape == CIRCLE)
{
// Expand outwards from foundation
for (i32 dist = 0; dist <= maxSpawningDistance; ++dist)
{
// The spawn point should be far enough from this footprint to fit the unit, plus a little gap
entity_pos_t clearance = spawnedRadius + entity_pos_t::FromInt(2 + (int)TERRAIN_TILE_SIZE*dist);
entity_pos_t radius = m_Size0 + clearance;
// Try equally-spaced points around the circle in alternating directions, starting from the front
const i32 numPoints = 31 + 2*dist;
for (i32 i = 0; i < (numPoints+1)/2; i = (i > 0 ? -i : 1-i)) // [0, +1, -1, +2, -2, ... (np-1)/2, -(np-1)/2]
{
entity_angle_t angle = initialAngle + (entity_angle_t::Pi()*2).Multiply(entity_angle_t::FromInt(i)/(int)numPoints);
fixed s, c;
sincos_approx(angle, s, c);
CFixedVector3D pos (initialPos.X + s.Multiply(radius), fixed::Zero(), initialPos.Y + c.Multiply(radius));
SkipTagObstructionFilter filter(spawnedTag); // ignore collisions with the spawned entity
if (cmpPathfinder->CheckUnitPlacement(filter, pos.X, pos.Z, spawnedRadius, spawnedPass) == ICmpObstruction::FOUNDATION_CHECK_SUCCESS)
return pos; // this position is okay, so return it
}
}
}
else
{
fixed s, c;
sincos_approx(initialAngle, s, c);
// Expand outwards from foundation
for (i32 dist = 0; dist <= maxSpawningDistance; ++dist)
{
// The spawn point should be far enough from this footprint to fit the unit, plus a little gap
entity_pos_t clearance = spawnedRadius + entity_pos_t::FromInt(2 + (int)TERRAIN_TILE_SIZE*dist);
for (i32 edge = 0; edge < 4; ++edge)
{
// Try equally-spaced points along the edge in alternating directions, starting from the middle
const i32 numPoints = 9 + 2*dist;
// Compute the direction and length of the current edge
CFixedVector2D dir;
fixed sx, sy;
switch (edge)
{
case 0:
dir = CFixedVector2D(c, -s);
sx = m_Size0;
sy = m_Size1;
break;
case 1:
dir = CFixedVector2D(-s, -c);
sx = m_Size1;
sy = m_Size0;
break;
case 2:
dir = CFixedVector2D(s, c);
sx = m_Size1;
sy = m_Size0;
break;
case 3:
dir = CFixedVector2D(-c, s);
sx = m_Size0;
sy = m_Size1;
break;
}
CFixedVector2D center = initialPos - dir.Perpendicular().Multiply(sy/2 + clearance);
dir = dir.Multiply((sx + clearance*2) / (int)(numPoints-1));
for (i32 i = 0; i < (numPoints+1)/2; i = (i > 0 ? -i : 1-i)) // [0, +1, -1, +2, -2, ... (np-1)/2, -(np-1)/2]
{
CFixedVector2D pos (center + dir*i);
SkipTagObstructionFilter filter(spawnedTag); // ignore collisions with the spawned entity
if (cmpPathfinder->CheckUnitPlacement(filter, pos.X, pos.Y, spawnedRadius, spawnedPass) == ICmpObstruction::FOUNDATION_CHECK_SUCCESS)
return CFixedVector3D(pos.X, fixed::Zero(), pos.Y); // this position is okay, so return it
}
}
}
}
return error;
}
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;
}
