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author | Tiger Wang <ziwei.tiger@hotmail.co.uk> | 2014-05-04 15:15:10 +0200 |
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committer | Tiger Wang <ziwei.tiger@hotmail.co.uk> | 2014-05-04 15:15:10 +0200 |
commit | 0d1804e439ec0028be4d5380e66c13481781fc57 (patch) | |
tree | 95d4c3ab397568f36832cf27cf98c351e9d22e4d /src/Entities/ArrowEntity.cpp | |
parent | Fixed lever and button powering direction (diff) | |
parent | Fixed pressure plate oversights (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/Entities/ArrowEntity.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/Entities/ArrowEntity.cpp b/src/Entities/ArrowEntity.cpp new file mode 100644 index 000000000..847b39bbc --- /dev/null +++ b/src/Entities/ArrowEntity.cpp @@ -0,0 +1,193 @@ +#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules + +#include "Player.h" +#include "ArrowEntity.h" +#include "../Chunk.h" + + + + + +cArrowEntity::cArrowEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed) : + super(pkArrow, a_Creator, a_X, a_Y, a_Z, 0.5, 0.5), + m_PickupState(psNoPickup), + m_DamageCoeff(2), + m_IsCritical(false), + m_Timer(0), + m_HitGroundTimer(0), + m_bIsCollected(false), + m_HitBlockPos(Vector3i(0, 0, 0)) +{ + SetSpeed(a_Speed); + SetMass(0.1); + SetYawFromSpeed(); + SetPitchFromSpeed(); + LOGD("Created arrow %d with speed {%.02f, %.02f, %.02f} and rot {%.02f, %.02f}", + m_UniqueID, GetSpeedX(), GetSpeedY(), GetSpeedZ(), + GetYaw(), GetPitch() + ); +} + + + + + +cArrowEntity::cArrowEntity(cPlayer & a_Player, double a_Force) : + super(pkArrow, &a_Player, a_Player.GetThrowStartPos(), a_Player.GetThrowSpeed(a_Force * 1.5 * 20), 0.5, 0.5), + m_PickupState(psInSurvivalOrCreative), + m_DamageCoeff(2), + m_IsCritical((a_Force >= 1)), + m_Timer(0), + m_HitGroundTimer(0), + m_HasTeleported(false), + m_bIsCollected(false), + m_HitBlockPos(0, 0, 0) +{ +} + + + + + +bool cArrowEntity::CanPickup(const cPlayer & a_Player) const +{ + switch (m_PickupState) + { + case psNoPickup: return false; + case psInSurvivalOrCreative: return (a_Player.IsGameModeSurvival() || a_Player.IsGameModeCreative()); + case psInCreative: return a_Player.IsGameModeCreative(); + } + ASSERT(!"Unhandled pickup state"); + return false; +} + + + + + +void cArrowEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace) +{ + if (a_HitFace == BLOCK_FACE_NONE) { return; } + + super::OnHitSolidBlock(a_HitPos, a_HitFace); + int a_X = (int)a_HitPos.x, a_Y = (int)a_HitPos.y, a_Z = (int)a_HitPos.z; + + switch (a_HitFace) + { + case BLOCK_FACE_XM: // Strangely, bounding boxes / block tracers return the actual block for these two directions, so AddFace not needed + case BLOCK_FACE_YM: + { + break; + } + default: AddFaceDirection(a_X, a_Y, a_Z, a_HitFace, true); + } + + m_HitBlockPos = Vector3i(a_X, a_Y, a_Z); + + // Broadcast arrow hit sound + m_World->BroadcastSoundEffect("random.bowhit", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64)); +} + + + + + +void cArrowEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos) +{ + if (!a_EntityHit.IsMob() && !a_EntityHit.IsMinecart() && !a_EntityHit.IsPlayer() && !a_EntityHit.IsBoat()) + { + // Not an entity that interacts with an arrow + return; + } + + int Damage = (int)(GetSpeed().Length() / 20 * m_DamageCoeff + 0.5); + if (m_IsCritical) + { + Damage += m_World->GetTickRandomNumber(Damage / 2 + 2); + } + a_EntityHit.TakeDamage(dtRangedAttack, this, Damage, 1); + + // Broadcast successful hit sound + m_World->BroadcastSoundEffect("random.successful_hit", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64)); + + Destroy(); +} + + + + + +void cArrowEntity::CollectedBy(cPlayer * a_Dest) +{ + if ((m_IsInGround) && (!m_bIsCollected) && (CanPickup(*a_Dest))) + { + int NumAdded = a_Dest->GetInventory().AddItem(E_ITEM_ARROW); + if (NumAdded > 0) // Only play effects if there was space in inventory + { + m_World->BroadcastCollectPickup((const cPickup &)*this, *a_Dest); + // Also send the "pop" sound effect with a somewhat random pitch (fast-random using EntityID ;) + m_World->BroadcastSoundEffect("random.pop", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64)); + m_bIsCollected = true; + } + } +} + + + + + +void cArrowEntity::Tick(float a_Dt, cChunk & a_Chunk) +{ + super::Tick(a_Dt, a_Chunk); + m_Timer += a_Dt; + + if (m_bIsCollected) + { + if (m_Timer > 500.f) // 0.5 seconds + { + Destroy(); + return; + } + } + else if (m_Timer > 1000 * 60 * 5) // 5 minutes + { + Destroy(); + return; + } + + if (m_IsInGround) + { + // When an arrow hits, the client doesn't think its in the ground and keeps on moving, IF BroadcastMovementUpdate() and TeleportEntity was called during flight, AT ALL + // Fix is to simply not sync with the client and send a teleport to confirm pos after arrow has stabilised (around 1 sec after landing) + // We can afford to do this because xoft's algorithm for trajectory is near perfect, so things are pretty close anyway without sync + // Besides, this seems to be what the vanilla server does, note how arrows teleport half a second after they hit to the server position + + if (!m_HasTeleported) // Sent a teleport already, don't do again + { + if (m_HitGroundTimer > 1000.f) // Send after a second, could be less, but just in case + { + m_World->BroadcastTeleportEntity(*this); + m_HasTeleported = true; + } + else + { + m_HitGroundTimer += a_Dt; + } + } + + int RelPosX = m_HitBlockPos.x - a_Chunk.GetPosX() * cChunkDef::Width; + int RelPosZ = m_HitBlockPos.z - a_Chunk.GetPosZ() * cChunkDef::Width; + cChunk * Chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(RelPosX, RelPosZ); + + if (Chunk == NULL) + { + // Inside an unloaded chunk, abort + return; + } + + if (Chunk->GetBlock(RelPosX, m_HitBlockPos.y, RelPosZ) == E_BLOCK_AIR) // Block attached to was destroyed? + { + m_IsInGround = false; // Yes, begin simulating physics again + } + } +} |