diff options
Diffstat (limited to 'src/Entities/Floater.cpp')
| -rw-r--r-- | src/Entities/Floater.cpp | 185 |
1 files changed, 168 insertions, 17 deletions
diff --git a/src/Entities/Floater.cpp b/src/Entities/Floater.cpp index ac7a82f91..dfe77f059 100644 --- a/src/Entities/Floater.cpp +++ b/src/Entities/Floater.cpp @@ -1,6 +1,8 @@ #include "Globals.h" +#include "../BoundingBox.h" +#include "../Chunk.h" #include "Floater.h" #include "Player.h" #include "../ClientHandle.h" @@ -9,11 +11,103 @@ -cFloater::cFloater(double a_X, double a_Y, double a_Z, Vector3d a_Speed, int a_PlayerID) : - cEntity(etFloater, a_X, a_Y, a_Z, 0.98, 0.98), +/////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cFloaterEntityCollisionCallback +class cFloaterEntityCollisionCallback : + public cEntityCallback +{ +public: + cFloaterEntityCollisionCallback(cFloater * a_Floater, const Vector3d & a_Pos, const Vector3d & a_NextPos) : + m_Floater(a_Floater), + m_Pos(a_Pos), + m_NextPos(a_NextPos), + m_MinCoeff(1), + m_HitEntity(NULL) + { + } + virtual bool Item(cEntity * a_Entity) override + { + if (!a_Entity->IsMob()) // Floaters can only pull mobs not other entities. + { + return false; + } + + cBoundingBox EntBox(a_Entity->GetPosition(), a_Entity->GetWidth() / 2, a_Entity->GetHeight()); + + double LineCoeff; + char Face; + EntBox.Expand(m_Floater->GetWidth() / 2, m_Floater->GetHeight() / 2, m_Floater->GetWidth() / 2); + if (!EntBox.CalcLineIntersection(m_Pos, m_NextPos, LineCoeff, Face)) + { + // No intersection whatsoever + return false; + } + + if (LineCoeff < m_MinCoeff) + { + // The entity is closer than anything we've stored so far, replace it as the potential victim + m_MinCoeff = LineCoeff; + m_HitEntity = a_Entity; + } + + // Don't break the enumeration, we want all the entities + return false; + } + + /// Returns the nearest entity that was hit, after the enumeration has been completed + cEntity * GetHitEntity(void) const { return m_HitEntity; } + + /// Returns true if the callback has encountered a true hit + bool HasHit(void) const { return (m_MinCoeff < 1); } + +protected: + cFloater * m_Floater; + const Vector3d & m_Pos; + const Vector3d & m_NextPos; + double m_MinCoeff; // The coefficient of the nearest hit on the Pos line + + // Although it's bad(tm) to store entity ptrs from a callback, we can afford it here, because the entire callback + // is processed inside the tick thread, so the entities won't be removed in between the calls and the final processing + cEntity * m_HitEntity; // The nearest hit entity +} ; + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cFloaterCheckEntityExist +class cFloaterCheckEntityExist : + public cEntityCallback +{ +public: + cFloaterCheckEntityExist(void) : + m_EntityExists(false) + { + } + + bool Item(cEntity * a_Entity) override + { + m_EntityExists = true; + return false; + } + + bool DoesExist(void) const { return m_EntityExists; } +protected: + bool m_EntityExists; +} ; + + + + + +cFloater::cFloater(double a_X, double a_Y, double a_Z, Vector3d a_Speed, int a_PlayerID, int a_CountDownTime) : + cEntity(etFloater, a_X, a_Y, a_Z, 0.2, 0.2), m_PickupCountDown(0), m_PlayerID(a_PlayerID), - m_CanPickupItem(false) + m_CanPickupItem(false), + m_CountDownTime(a_CountDownTime), + m_AttachedMobID(-1) { SetSpeed(a_Speed); } @@ -36,21 +130,49 @@ void cFloater::Tick(float a_Dt, cChunk & a_Chunk) HandlePhysics(a_Dt, a_Chunk); if (IsBlockWater(m_World->GetBlock((int) GetPosX(), (int) GetPosY(), (int) GetPosZ())) && m_World->GetBlockMeta((int) GetPosX(), (int) GetPosY(), (int) GetPosZ()) == 0) { - if ((!m_CanPickupItem) && (m_World->GetTickRandomNumber(100) == 0)) - { - SetPosY(GetPosY() - 1); - m_CanPickupItem = true; - m_PickupCountDown = 20; - LOGD("Floater %i can be picked up", GetUniqueID()); - } - else + if ((!m_CanPickupItem) && (m_AttachedMobID == -1)) // Check if you can't already pickup a fish and if the floater isn't attached to a mob. { - SetSpeedY(0.7); + if (m_CountDownTime <= 0) + { + m_World->BroadcastSoundEffect("random.splash", (int) floor(GetPosX() * 8), (int) floor(GetPosY() * 8), (int) floor(GetPosZ() * 8), 1, 1); + SetPosY(GetPosY() - 1); + m_CanPickupItem = true; + m_PickupCountDown = 20; + m_CountDownTime = 100 + m_World->GetTickRandomNumber(800); + LOGD("Floater %i can be picked up", GetUniqueID()); + } + else if (m_CountDownTime == 20) // Calculate the position where the particles should spawn and start producing them. + { + LOGD("Started producing particles for floater %i", GetUniqueID()); + m_ParticlePos.Set(GetPosX() + (-4 + m_World->GetTickRandomNumber(8)), GetPosY(), GetPosZ() + (-4 + m_World->GetTickRandomNumber(8))); + m_World->BroadcastParticleEffect("splash", (float) m_ParticlePos.x, (float) m_ParticlePos.y, (float) m_ParticlePos.z, 0, 0, 0, 0, 15); + } + else if (m_CountDownTime < 20) + { + m_ParticlePos = (m_ParticlePos + (GetPosition() - m_ParticlePos) / 6); + m_World->BroadcastParticleEffect("splash", (float) m_ParticlePos.x, (float) m_ParticlePos.y, (float) m_ParticlePos.z, 0, 0, 0, 0, 15); + } + + m_CountDownTime--; + if (m_World->GetHeight((int) GetPosX(), (int) GetPosZ()) == (int) GetPosY()) + { + if (m_World->IsWeatherWet() && m_World->GetTickRandomNumber(3) == 0) // 25% chance of an extra countdown when being rained on. + { + m_CountDownTime--; + } + } + else // if the floater is underground it has a 50% chance of not decreasing the countdown. + { + if (m_World->GetTickRandomNumber(1) == 0) + { + m_CountDownTime++; + } + } } + SetSpeedY(0.7); } - SetSpeedX(GetSpeedX() * 0.95); - SetSpeedZ(GetSpeedZ() * 0.95); - if (CanPickup()) + + if (CanPickup()) // Make sure the floater "loses its fish" { m_PickupCountDown--; if (m_PickupCountDown == 0) @@ -59,9 +181,38 @@ void cFloater::Tick(float a_Dt, cChunk & a_Chunk) LOGD("The fish is gone. Floater %i can not pick an item up.", GetUniqueID()); } } - BroadcastMovementUpdate(); -} + if ((GetSpeed().Length() > 4) && (m_AttachedMobID == -1)) + { + cFloaterEntityCollisionCallback Callback(this, GetPosition(), GetPosition() + GetSpeed() / 20); + + a_Chunk.ForEachEntity(Callback); + if (Callback.HasHit()) + { + AttachTo(Callback.GetHitEntity()); + Callback.GetHitEntity()->TakeDamage(*this); // TODO: the player attacked the mob not the floater. + m_AttachedMobID = Callback.GetHitEntity()->GetUniqueID(); + } + } + cFloaterCheckEntityExist EntityCallback; + m_World->DoWithEntityByID(m_PlayerID, EntityCallback); + if (!EntityCallback.DoesExist()) // The owner doesn't exist anymore. Destroy the floater entity. + { + Destroy(true); + } + if (m_AttachedMobID != -1) + { + m_World->DoWithEntityByID(m_AttachedMobID, EntityCallback); // The mob the floater was attached to doesn't exist anymore. + if (!EntityCallback.DoesExist()) + { + m_AttachedMobID = -1; + } + } + + SetSpeedX(GetSpeedX() * 0.95); + SetSpeedZ(GetSpeedZ() * 0.95); + BroadcastMovementUpdate(); +}
\ No newline at end of file |