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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
commit675b4aa878f16291ce33fced48a2bc7425f635ae (patch)
tree409914df27a98f65adf866da669429c4de141b6f /src/Entities/Minecart.cpp
parentLineBlockTracer: Using the coord-based block faces. (diff)
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Diffstat (limited to 'src/Entities/Minecart.cpp')
-rw-r--r--src/Entities/Minecart.cpp541
1 files changed, 541 insertions, 0 deletions
diff --git a/src/Entities/Minecart.cpp b/src/Entities/Minecart.cpp
new file mode 100644
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+++ b/src/Entities/Minecart.cpp
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+
+// 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!! \ No newline at end of file