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Diffstat (limited to 'src/Entities/Minecart.cpp')
| -rw-r--r-- | src/Entities/Minecart.cpp | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/src/Entities/Minecart.cpp b/src/Entities/Minecart.cpp new file mode 100644 index 000000000..f75e23d8b --- /dev/null +++ b/src/Entities/Minecart.cpp @@ -0,0 +1,541 @@ + +// Minecart.cpp + +// Implements the cMinecart class representing a minecart in the world +// Indiana Jones! + +#include "Globals.h" +#include "Minecart.h" +#include "../World.h" +#include "../ClientHandle.h" +#include "../Chunk.h" +#include "Player.h" + + + + + +cMinecart::cMinecart(ePayload a_Payload, double a_X, double a_Y, double a_Z) : + super(etMinecart, a_X, a_Y, a_Z, 0.98, 0.7), + m_Payload(a_Payload), + m_LastDamage(0) +{ + SetMass(20.f); + SetMaxHealth(6); + SetHealth(6); +} + + + + +void cMinecart::SpawnOn(cClientHandle & a_ClientHandle) +{ + char SubType = 0; + switch (m_Payload) + { + case mpNone: SubType = 0; break; + case mpChest: SubType = 1; break; + case mpFurnace: SubType = 2; break; + case mpTNT: SubType = 3; break; + case mpHopper: SubType = 5; break; + default: + { + ASSERT(!"Unknown payload, cannot spawn on client"); + return; + } + } + a_ClientHandle.SendSpawnVehicle(*this, 10, SubType); // 10 = Minecarts, SubType = What type of Minecart +} + + + + + +void cMinecart::HandlePhysics(float a_Dt, cChunk & a_Chunk) +{ + int PosY = (int)floor(GetPosY()); + if ((PosY <= 0) || (PosY >= cChunkDef::Height)) + { + // Outside the world, just process normal falling physics + super::HandlePhysics(a_Dt, a_Chunk); + BroadcastMovementUpdate(); + return; + } + + int RelPosX = (int)floor(GetPosX()) - a_Chunk.GetPosX() * cChunkDef::Width; + int RelPosZ = (int)floor(GetPosZ()) - a_Chunk.GetPosZ() * cChunkDef::Width; + cChunk * Chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(RelPosX, RelPosZ); + if (Chunk == NULL) + { + // Inside an unloaded chunk, bail out all processing + return; + } + BLOCKTYPE BelowType = Chunk->GetBlock(RelPosX, PosY - 1, RelPosZ); + BLOCKTYPE InsideType = Chunk->GetBlock(RelPosX, PosY, RelPosZ); + + if (IsBlockRail(BelowType)) + { + HandleRailPhysics(a_Dt, *Chunk); + } + else + { + if (IsBlockRail(InsideType)) + { + SetPosY(PosY + 1); + HandleRailPhysics(a_Dt, *Chunk); + } + else + { + super::HandlePhysics(a_Dt, *Chunk); + BroadcastMovementUpdate(); + } + } +} + + + + + +static const double MAX_SPEED = 8; +static const double MAX_SPEED_NEGATIVE = (0 - MAX_SPEED); + +void cMinecart::HandleRailPhysics(float a_Dt, cChunk & a_Chunk) +{ + + super::HandlePhysics(a_Dt, a_Chunk); // Main physics handling + + /* + NOTE: Please bear in mind that taking away from negatives make them even more negative, + adding to negatives make them positive, etc. + */ + + // Get block meta below the cart + int RelPosX = (int)floor(GetPosX()) - a_Chunk.GetPosX() * cChunkDef::Width; + int RelPosZ = (int)floor(GetPosZ()) - a_Chunk.GetPosZ() * cChunkDef::Width; + NIBBLETYPE BelowMeta = a_Chunk.GetMeta(RelPosX, (int)floor(GetPosY() - 1), RelPosZ); + double SpeedX = GetSpeedX(), SpeedY = GetSpeedY(), SpeedZ = GetSpeedZ(); // Get current speed + + switch (BelowMeta) + { + case E_META_RAIL_ZM_ZP: // NORTHSOUTH + { + SetRotation(270); + SpeedY = 0; // Don't move vertically as on ground + SpeedX = 0; // Correct diagonal movement from curved rails + + if (SpeedZ != 0) // Don't do anything if cart is stationary + { + if (SpeedZ > 0) + { + // Going SOUTH, slow down + SpeedZ = SpeedZ - 0.1; + } + else + { + // Going NORTH, slow down + SpeedZ = SpeedZ + 0.1; + } + } + break; + } + + case E_META_RAIL_XM_XP: // EASTWEST + { + SetRotation(180); + SpeedY = 0; + SpeedZ = 0; + + if (SpeedX != 0) + { + if (SpeedX > 0) + { + SpeedX = SpeedX - 0.1; + } + else + { + SpeedX = SpeedX + 0.1; + } + } + break; + } + + case E_META_RAIL_ASCEND_ZM: // ASCEND NORTH + { + SetRotation(270); + SetPosY(floor(GetPosY()) + 0.2); // It seems it doesn't work without levitation :/ + SpeedX = 0; + + if (SpeedZ >= 0) + { + // SpeedZ POSITIVE, going SOUTH + if (SpeedZ <= MAX_SPEED) // Speed limit + { + SpeedZ = SpeedZ + 0.5; // Speed up + SpeedY = (0 - SpeedZ); // Downward movement is negative (0 minus positive numbers is negative) + } + else + { + SpeedZ = MAX_SPEED; // Enforce speed limit + SpeedY = (0 - SpeedZ); + } + } + else + { + // SpeedZ NEGATIVE, going NORTH + SpeedZ = SpeedZ + 0.4; // Slow down + SpeedY = (0 - SpeedZ); // Upward movement is positive (0 minus negative number is positive number) + } + break; + } + + case E_META_RAIL_ASCEND_ZP: // ASCEND SOUTH + { + SetRotation(270); + SetPosY(floor(GetPosY()) + 0.2); + SpeedX = 0; + + if (SpeedZ > 0) + { + // SpeedZ POSITIVE, going SOUTH + SpeedZ = SpeedZ - 0.4; // Slow down + SpeedY = SpeedZ; // Upward movement positive + } + else + { + if (SpeedZ >= MAX_SPEED_NEGATIVE) // Speed limit + { + // SpeedZ NEGATIVE, going NORTH + SpeedZ = SpeedZ - 0.5; // Speed up + SpeedY = SpeedZ; // Downward movement negative + } + else + { + SpeedZ = MAX_SPEED_NEGATIVE; // Enforce speed limit + SpeedY = SpeedZ; + } + } + break; + } + + case E_META_RAIL_ASCEND_XM: // ASCEND EAST + { + SetRotation(180); + SetPosY(floor(GetPosY()) + 0.2); + SpeedZ = 0; + + if (SpeedX >= 0) + { + if (SpeedX <= MAX_SPEED) + { + SpeedX = SpeedX + 0.5; + SpeedY = (0 - SpeedX); + } + else + { + SpeedX = MAX_SPEED; + SpeedY = (0 - SpeedX); + } + } + else + { + SpeedX = SpeedX + 0.4; + SpeedY = (0 - SpeedX); + } + break; + } + + case E_META_RAIL_ASCEND_XP: // ASCEND WEST + { + SetRotation(180); + SetPosY(floor(GetPosY()) + 0.2); + SpeedZ = 0; + + if (SpeedX > 0) + { + SpeedX = SpeedX - 0.4; + SpeedY = SpeedX; + } + else + { + if (SpeedX >= MAX_SPEED_NEGATIVE) + { + SpeedX = SpeedX - 0.5; + SpeedY = SpeedX; + } + else + { + SpeedX = MAX_SPEED_NEGATIVE; + SpeedY = SpeedX; + } + } + break; + } + + case E_META_RAIL_CURVED_ZM_XM: // Ends pointing NORTH and WEST + { + SetRotation(315); // Set correct rotation server side + SetPosY(floor(GetPosY()) + 0.2); // Levitate dat cart + + if (SpeedZ > 0) // Cart moving south + { + SpeedX = (0 - SpeedZ); // Diagonally move southwest (which will make cart hit a southwest rail) + } + else if (SpeedX > 0) // Cart moving east + { + SpeedZ = (0 - SpeedX); // Diagonally move northeast + } + break; + } + + case E_META_RAIL_CURVED_ZM_XP: // Curved NORTH EAST + { + SetRotation(225); + SetPosY(floor(GetPosY()) + 0.2); + + if (SpeedZ > 0) + { + SpeedX = SpeedZ; + } + else if (SpeedX < 0) + { + SpeedZ = SpeedX; + } + break; + } + + case E_META_RAIL_CURVED_ZP_XM: // Curved SOUTH WEST + { + SetRotation(135); + SetPosY(floor(GetPosY()) + 0.2); + + if (SpeedZ < 0) + { + SpeedX = SpeedZ; + } + else if (SpeedX > 0) + { + SpeedZ = SpeedX; + } + break; + } + + case E_META_RAIL_CURVED_ZP_XP: // Curved SOUTH EAST + { + SetRotation(45); + SetPosY(floor(GetPosY()) + 0.2); + + if (SpeedZ < 0) + { + SpeedX = (0 - SpeedZ); + } + else if (SpeedX < 0) + { + SpeedZ = (0 - SpeedX); + } + break; + } + + default: + { + ASSERT(!"Unhandled rail meta!"); // Dun dun DUN! + break; + } + } + + // Set speed to speed variables + SetSpeedX(SpeedX); + SetSpeedY(SpeedY); + SetSpeedZ(SpeedZ); + + + // Broadcast position to client + BroadcastMovementUpdate(); +} + + + + + +void cMinecart::DoTakeDamage(TakeDamageInfo & TDI) +{ + m_LastDamage = TDI.FinalDamage; + super::DoTakeDamage(TDI); + + m_World->BroadcastEntityMetadata(*this); + + if (GetHealth() <= 0) + { + Destroy(true); + + cItems Drops; + switch (m_Payload) + { + case mpNone: + { + Drops.push_back(cItem(E_ITEM_MINECART, 1, 0)); + break; + } + case mpChest: + { + Drops.push_back(cItem(E_ITEM_CHEST_MINECART, 1, 0)); + break; + } + case mpFurnace: + { + Drops.push_back(cItem(E_ITEM_FURNACE_MINECART, 1, 0)); + break; + } + case mpTNT: + { + Drops.push_back(cItem(E_ITEM_MINECART_WITH_TNT, 1, 0)); + break; + } + case mpHopper: + { + Drops.push_back(cItem(E_ITEM_MINECART_WITH_HOPPER, 1, 0)); + break; + } + default: + { + ASSERT(!"Unhandled minecart type when spawning pickup!"); + return; + } + } + + m_World->SpawnItemPickups(Drops, GetPosX(), GetPosY(), GetPosZ()); + } +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cEmptyMinecart: + +cEmptyMinecart::cEmptyMinecart(double a_X, double a_Y, double a_Z) : + super(mpNone, a_X, a_Y, a_Z) +{ +} + + + + + +void cEmptyMinecart::OnRightClicked(cPlayer & a_Player) +{ + if (m_Attachee != NULL) + { + if (m_Attachee->GetUniqueID() == a_Player.GetUniqueID()) + { + // This player is already sitting in, they want out. + a_Player.Detach(); + return; + } + + if (m_Attachee->IsPlayer()) + { + // Another player is already sitting in here, cannot attach + return; + } + + // Detach whatever is sitting in this minecart now: + m_Attachee->Detach(); + } + + // Attach the player to this minecart + a_Player.AttachTo(this); +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cMinecartWithChest: + +cMinecartWithChest::cMinecartWithChest(double a_X, double a_Y, double a_Z) : + super(mpChest, a_X, a_Y, a_Z) +{ +} + + + + + +void cMinecartWithChest::SetSlot(int a_Idx, const cItem & a_Item) +{ + ASSERT((a_Idx >= 0) && (a_Idx < ARRAYCOUNT(m_Items))); + + m_Items[a_Idx] = a_Item; +} + + + + + +void cMinecartWithChest::OnRightClicked(cPlayer & a_Player) +{ + // Show the chest UI window to the player + // TODO +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cMinecartWithFurnace: + +cMinecartWithFurnace::cMinecartWithFurnace(double a_X, double a_Y, double a_Z) : + super(mpFurnace, a_X, a_Y, a_Z), + m_IsFueled(false) +{ +} + + + + + +void cMinecartWithFurnace::OnRightClicked(cPlayer & a_Player) +{ + if (a_Player.GetEquippedItem().m_ItemType == E_ITEM_COAL) + { + if (!a_Player.IsGameModeCreative()) + { + a_Player.GetInventory().RemoveOneEquippedItem(); + } + + m_IsFueled = true; + m_World->BroadcastEntityMetadata(*this); + } +} + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cMinecartWithTNT: + +cMinecartWithTNT::cMinecartWithTNT(double a_X, double a_Y, double a_Z) : + super(mpTNT, a_X, a_Y, a_Z) +{ +} + +// TODO: Make it activate when passing over activator rail + + + + + +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cMinecartWithHopper: + +cMinecartWithHopper::cMinecartWithHopper(double a_X, double a_Y, double a_Z) : + super(mpHopper, a_X, a_Y, a_Z) +{ +} + +// TODO: Make it suck up blocks and travel further than any other cart and physics and put and take blocks +// AND AVARYTHING!!
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