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MinecraftConsoles/Minecraft.World/Minecart.cpp
daoge_cmd b691c43c44 Initial commit
2026-03-01 12:16:08 +08:00

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#include "stdafx.h"
#include "net.minecraft.world.level.h"
#include "net.minecraft.world.level.tile.h"
#include "net.minecraft.world.phys.h"
#include "net.minecraft.world.entity.h"
#include "net.minecraft.world.entity.item.h"
#include "net.minecraft.world.entity.player.h"
#include "net.minecraft.world.entity.animal.h"
#include "net.minecraft.world.item.h"
#include "net.minecraft.world.damagesource.h"
#include "com.mojang.nbt.h"
#include "Minecart.h"
#include "SharedConstants.h"
const int Minecart::EXITS[][2][3] = { //
//
{
{
+0, +0, -1
}, {
+0, +0, +1
}
}, // 0
{
{
-1, +0, +0
}, {
+1, +0, +0
}
}, // 1
{
{
-1, -1, +0
}, {
+1, +0, +0
}
}, // 2
{
{
-1, +0, +0
}, {
+1, -1, +0
}
}, // 3
{
{
+0, +0, -1
}, {
+0, -1, +1
}
}, // 4
{
{
+0, -1, -1
}, {
+0, +0, +1
}
}, // 5
{
{
+0, +0, +1
}, {
+1, +0, +0
}
}, // 6
{
{
+0, +0, +1
}, {
-1, +0, +0
}
}, // 7
{
{
+0, +0, -1
}, {
-1, +0, +0
}
}, // 8
{
{
+0, +0, -1
}, {
+1, +0, +0
}
}, // 9
};
void Minecart::_init()
{
// 4J TODO This gets replaced again later so should maybe be inited as NULL?
items = new ItemInstanceArray(9 * 4);
flipped = false;
type = fuel = 0;
xPush = zPush = 0.0;
lSteps = 0;
lx = ly = lz = lyr = lxr = 0.0;
lxd = lyd = lzd = 0.0;
// Java default ctor
blocksBuilding = true;
setSize(0.98f, 0.7f);
heightOffset = bbHeight / 2.0f;
//
// 4J Added
m_bHasPushedCartThisTick = false;
}
Minecart::Minecart(Level *level) : Entity( level )
{
// 4J Stu - This function call had to be moved here from the Entity ctor to ensure that
// the derived version of the function is called
this->defineSynchedData();
_init();
}
bool Minecart::makeStepSound()
{
return false;
}
void Minecart::defineSynchedData()
{
entityData->define(DATA_ID_FUEL, (byte) 0);
entityData->define(DATA_ID_HURT, 0);
entityData->define(DATA_ID_HURTDIR, 1);
entityData->define(DATA_ID_DAMAGE, 0);
}
AABB *Minecart::getCollideAgainstBox(shared_ptr<Entity> entity)
{
return entity->bb;
}
AABB *Minecart::getCollideBox()
{
// if (level->isClientSide) return NULL;
return NULL;
}
bool Minecart::isPushable()
{
return true;
}
Minecart::Minecart(Level *level, double x, double y, double z, int type) : Entity( level )
{
// 4J Stu - This function call had to be moved here from the Entity ctor to ensure that
// the derived version of the function is called
this->defineSynchedData();
_init();
setPos(x, y + heightOffset, z);
xd = 0;
yd = 0;
zd = 0;
xo = x;
yo = y;
zo = z;
this->type = type;
}
double Minecart::getRideHeight()
{
return bbHeight * 0.0 - 0.3f;
}
bool Minecart::hurt(DamageSource *source, int hurtDamage)
{
if (level->isClientSide || removed) return true;
// 4J-JEV: Fix for #88212,
// Untrusted players shouldn't be able to damage minecarts or boats.
if (dynamic_cast<EntityDamageSource *>(source) != NULL)
{
shared_ptr<Entity> attacker = source->getDirectEntity();
if (dynamic_pointer_cast<Player>(attacker) != NULL &&
!dynamic_pointer_cast<Player>(attacker)->isAllowedToHurtEntity( shared_from_this() ))
return false;
}
setHurtDir(-getHurtDir());
setHurtTime(10);
markHurt();
// 4J Stu - If someone is riding in this, then it can tick multiple times which causes the damage to
// decrease too quickly. So just make the damage a bit higher to start with for similar behaviour
// to an unridden one. Only do this change if the riding player is attacking it.
if( rider.lock() != NULL && rider.lock() == source->getEntity() ) hurtDamage += 1;
// 4J Stu - Brought froward from 12w36 to fix #46611 - TU5: Gameplay: Minecarts and boat requires more hits than one to be destroyed in creative mode
shared_ptr<Player> player = dynamic_pointer_cast<Player>(source->getEntity());
if (player != NULL && player->abilities.instabuild) this->setDamage(100);
this->setDamage(getDamage() + (hurtDamage * 10));
if (this->getDamage() > 20 * 2)
{
// 4J HEG - Fixed issue with player falling through the ground on destroying a minecart while riding (issue #160607)
if (rider.lock() != NULL) rider.lock()->ride(nullptr);
remove();
spawnAtLocation(Item::minecart->id, 1, 0);
if (type == Minecart::CHEST)
{
shared_ptr<Container> container = dynamic_pointer_cast<Container>( shared_from_this() );
for (unsigned int i = 0; i < container->getContainerSize(); i++)
{
shared_ptr<ItemInstance> item = container->getItem(i);
if (item != NULL)
{
float xo = random->nextFloat() * 0.8f + 0.1f;
float yo = random->nextFloat() * 0.8f + 0.1f;
float zo = random->nextFloat() * 0.8f + 0.1f;
while (item->count > 0)
{
int count = random->nextInt(21) + 10;
if (count > item->count) count = item->count;
item->count -= count;
shared_ptr<ItemEntity> itemEntity = shared_ptr<ItemEntity>( new ItemEntity(level, x + xo, y + yo, z + zo, shared_ptr<ItemInstance>( new ItemInstance(item->id, count, item->getAuxValue()) ) ) );
float pow = 0.05f;
itemEntity->xd = (float) random->nextGaussian() * pow;
itemEntity->yd = (float) random->nextGaussian() * pow + 0.2f;
itemEntity->zd = (float) random->nextGaussian() * pow;
if (item->hasTag())
{
itemEntity->getItem()->setTag((CompoundTag *) item->getTag()->copy());
}
level->addEntity(itemEntity);
}
}
}
spawnAtLocation(Tile::chest_Id, 1, 0);
}
else if (type == Minecart::FURNACE)
{
spawnAtLocation(Tile::furnace_Id, 1, 0);
}
}
return true;
}
void Minecart::animateHurt()
{
setHurtDir(-getHurtDir());
setHurtTime(10);
this->setDamage(this->getDamage() + (getDamage() * 10));
}
bool Minecart::isPickable()
{
return !removed;
}
void Minecart::remove()
{
for (unsigned int i = 0; i < getContainerSize(); i++)
{
shared_ptr<ItemInstance> item = getItem(i);
if (item != NULL)
{
float xo = random->nextFloat() * 0.8f + 0.1f;
float yo = random->nextFloat() * 0.8f + 0.1f;
float zo = random->nextFloat() * 0.8f + 0.1f;
while (item->count > 0)
{
int count = random->nextInt(21) + 10;
if (count > item->count) count = item->count;
item->count -= count;
shared_ptr<ItemEntity> itemEntity = shared_ptr<ItemEntity>( new ItemEntity(level, x + xo, y + yo, z + zo, shared_ptr<ItemInstance>( new ItemInstance(item->id, count, item->getAuxValue()) ) ) );
float pow = 0.05f;
itemEntity->xd = (float) random->nextGaussian() * pow;
itemEntity->yd = (float) random->nextGaussian() * pow + 0.2f;
itemEntity->zd = (float) random->nextGaussian() * pow;
if (item->hasTag())
{
itemEntity->getItem()->setTag((CompoundTag *) item->getTag()->copy());
}
level->addEntity(itemEntity);
}
}
}
Entity::remove();
}
void Minecart::tick()
{
// 4J - make minecarts (server-side) tick twice, to put things back to how they were when we were accidently ticking them twice
for( int i = 0; i < 2; i++ )
{
if (getHurtTime() > 0) setHurtTime(getHurtTime() - 1);
if (getDamage() > 0) setDamage(getDamage() - 1);
if(y < -64)
{
outOfWorld();
}
if (hasFuel() && random->nextInt(4) == 0)
{
level->addParticle(eParticleType_largesmoke, x, y + 0.8, z, 0, 0, 0);
}
// 4J Stu - Fix for #8284 - Gameplay: Collision: Minecart clips into/ through blocks at the end of the track, prevents player from riding
if (level->isClientSide) // && lSteps > 0)
{
if (lSteps > 0)
{
double xt = x + (lx - x) / lSteps;
double yt = y + (ly - y) / lSteps;
double zt = z + (lz - z) / lSteps;
double yrd = Mth::wrapDegrees(lyr - yRot);
yRot += (float) ( (yrd) / lSteps );
xRot += (float) ( (lxr - xRot) / lSteps );
lSteps--;
this->setPos(xt, yt, zt);
this->setRot(yRot, xRot);
}
else
{
this->setPos(x, y, z);
this->setRot(yRot, xRot);
}
return; // 4J - return here stops the client-side version of this from ticking twice
}
xo = x;
yo = y;
zo = z;
yd -= 0.04f;
int xt = Mth::floor(x);
int yt = Mth::floor(y);
int zt = Mth::floor(z);
if (RailTile::isRail(level, xt, yt - 1, zt))
{
yt--;
}
double max = 0.4;
double slideSpeed = 1 / 128.0;
int tile = level->getTile(xt, yt, zt);
if (RailTile::isRail(tile))
{
Vec3 *oldPos = getPos(x, y, z);
int data = level->getData(xt, yt, zt);
y = yt;
bool powerTrack = false;
bool haltTrack = false;
if (tile == Tile::goldenRail_Id)
{
powerTrack = (data & RailTile::RAIL_DATA_BIT) != 0;
haltTrack = !powerTrack;
}
if (((RailTile *) Tile::tiles[tile])->isUsesDataBit())
{
data &= RailTile::RAIL_DIRECTION_MASK;
}
if (data >= 2 && data <= 5)
{
y = yt + 1;
}
if (data == 2) xd -= slideSpeed;
if (data == 3) xd += slideSpeed;
if (data == 4) zd += slideSpeed;
if (data == 5) zd -= slideSpeed;
// 4J TODO Is this a good way to copy the bit of the array that we need?
int exits[2][3];
memcpy( &exits, (void *)EXITS[data], sizeof(int) * 2 * 3);
//int exits[2][3] = EXITS[data];
double xD = exits[1][0] - exits[0][0];
double zD = exits[1][2] - exits[0][2];
double dd = sqrt(xD * xD + zD * zD);
double flip = xd * xD + zd * zD;
if (flip < 0)
{
xD = -xD;
zD = -zD;
}
double pow = sqrt(xd * xd + zd * zd);
xd = pow * xD / dd;
zd = pow * zD / dd;
shared_ptr<Entity> sharedRider = rider.lock();
if (sharedRider != NULL)
{
double riderDist = (sharedRider->xd * sharedRider->xd + sharedRider->zd * sharedRider->zd);
double ownDist = xd * xd + zd * zd;
if (riderDist > 0.0001 && ownDist < 0.01)
{
xd += sharedRider->xd * 0.1;
zd += sharedRider->zd * 0.1;
haltTrack = false;
}
}
// on golden rails without power, stop the cart
if (haltTrack)
{
double speedLength = sqrt(xd * xd + zd * zd);
if (speedLength < 0.03)
{
xd *= 0;
yd *= 0;
zd *= 0;
}
else
{
xd *= 0.5f;
yd *= 0;
zd *= 0.5f;
}
}
double progress = 0;
double x0 = xt + 0.5 + exits[0][0] * 0.5;
double z0 = zt + 0.5 + exits[0][2] * 0.5;
double x1 = xt + 0.5 + exits[1][0] * 0.5;
double z1 = zt + 0.5 + exits[1][2] * 0.5;
xD = x1 - x0;
zD = z1 - z0;
if (xD == 0)
{
x = xt + 0.5;
progress = z - zt;
}
else if (zD == 0)
{
z = zt + 0.5;
progress = x - xt;
}
else
{
double xx = x - x0;
double zz = z - z0;
progress = (xx * xD + zz * zD) * 2;
}
x = x0 + xD * progress;
z = z0 + zD * progress;
setPos(x, y + heightOffset, z);
double xdd = xd;
double zdd = zd;
if (rider.lock() != NULL)
{
xdd *= 0.75;
zdd *= 0.75;
}
if (xdd < -max) xdd = -max;
if (xdd > +max) xdd = +max;
if (zdd < -max) zdd = -max;
if (zdd > +max) zdd = +max;
move(xdd, 0, zdd);
if (exits[0][1] != 0 && Mth::floor(x) - xt == exits[0][0] && Mth::floor(z) - zt == exits[0][2])
{
setPos(x, y + exits[0][1], z);
}
else if (exits[1][1] != 0 && Mth::floor(x) - xt == exits[1][0] && Mth::floor(z) - zt == exits[1][2])
{
setPos(x, y + exits[1][1], z);
}
else
{
}
if (rider.lock() != NULL)
{
xd *= 0.997f;
yd *= 0;
zd *= 0.997f;
}
else
{
if (type == Minecart::FURNACE)
{
double sd = xPush * xPush + zPush * zPush;
if (sd > 0.01 * 0.01)
{
sd = sqrt(sd);
xPush /= sd;
zPush /= sd;
double speed = 0.04;
xd *= 0.8f;
yd *= 0;
zd *= 0.8f;
xd += xPush * speed;
zd += zPush * speed;
}
else
{
xd *= 0.9f;
yd *= 0;
zd *= 0.9f;
}
}
xd *= 0.96f;
yd *= 0;
zd *= 0.96f;
}
Vec3 *newPos = getPos(x, y, z);
if (newPos != NULL && oldPos != NULL)
{
double speed = (oldPos->y - newPos->y) * 0.05;
pow = sqrt(xd * xd + zd * zd);
if (pow > 0)
{
xd = xd / pow * (pow + speed);
zd = zd / pow * (pow + speed);
}
setPos(x, newPos->y, z);
}
int xn = Mth::floor(x);
int zn = Mth::floor(z);
if (xn != xt || zn != zt)
{
pow = sqrt(xd * xd + zd * zd);
xd = pow * (xn - xt);
zd = pow * (zn - zt);
}
if (type == Minecart::FURNACE)
{
double sd = xPush * xPush + zPush * zPush;
if (sd > 0.01 * 0.01 && xd * xd + zd * zd > 0.001)
{
sd = sqrt(sd);
xPush /= sd;
zPush /= sd;
if (xPush * xd + zPush * zd < 0)
{
xPush = 0;
zPush = 0;
}
else
{
xPush = xd;
zPush = zd;
}
}
}
// if on golden rail with power, increase speed
if (powerTrack)
{
double speedLength = sqrt(xd * xd + zd * zd);
if (speedLength > .01)
{
double speed = 0.06;
xd += xd / speedLength * speed;
zd += zd / speedLength * speed;
}
else
{
// if the minecart is standing still, accelerate it away
// from potentional walls
if (data == RailTile::DIR_FLAT_X)
{
if (level->isSolidBlockingTile(xt - 1, yt, zt))
{
xd = .02;
}
else if (level->isSolidBlockingTile(xt + 1, yt, zt))
{
xd = -.02;
}
}
else if (data == RailTile::DIR_FLAT_Z)
{
if (level->isSolidBlockingTile(xt, yt, zt - 1))
{
zd = .02;
}
else if (level->isSolidBlockingTile(xt, yt, zt + 1))
{
zd = -.02;
}
}
}
}
checkInsideTiles();
}
else
{
if (xd < -max) xd = -max;
if (xd > +max) xd = +max;
if (zd < -max) zd = -max;
if (zd > +max) zd = +max;
if (onGround)
{
xd *= 0.5f;
yd *= 0.5f;
zd *= 0.5f;
}
move(xd, yd, zd);
if (onGround)
{
}
else
{
xd *= 0.95f;
yd *= 0.95f;
zd *= 0.95f;
}
}
xRot = 0;
double xDiff = xo - x;
double zDiff = zo - z;
if (xDiff * xDiff + zDiff * zDiff > 0.001)
{
yRot = (float) (atan2(zDiff, xDiff) * 180 / PI);
if (flipped) yRot += 180;
}
double rotDiff = Mth::wrapDegrees(yRot - yRotO);
if (rotDiff < -170 || rotDiff >= 170)
{
yRot += 180;
flipped = !flipped;
}
setRot(yRot, xRot);
// if (!level->isClientSide) {
{
vector<shared_ptr<Entity> > *entities = level->getEntities(shared_from_this(), this->bb->grow(0.2f, 0, 0.2f));
if (entities != NULL && !entities->empty())
{
AUTO_VAR(itEnd, entities->end());
for (AUTO_VAR(it, entities->begin()); it != itEnd; it++)
{
shared_ptr<Entity> e = (*it); //entities->at(i);
if (e != rider.lock() && e->isPushable() && e->GetType() == eTYPE_MINECART)
{
shared_ptr<Minecart> cart = dynamic_pointer_cast<Minecart>(e);
cart->m_bHasPushedCartThisTick = false;
cart->push(shared_from_this());
// 4J Added - We should only be pushed by one minecart per tick, the closest one
// Fix for #46937 - TU5: Gameplay: Crash/Freeze occurs when a minecart with an animal inside will be forced to despawn
if( cart->m_bHasPushedCartThisTick ) break;
}
}
}
}
if (rider.lock() != NULL)
{
if (rider.lock()->removed)
{
if (rider.lock()->riding == shared_from_this())
{
rider.lock()->riding = nullptr;
}
rider = weak_ptr<Entity>();
}
}
if (fuel > 0)
{
fuel--;
}
if (fuel <= 0)
{
xPush = zPush = 0;
}
setHasFuel(fuel > 0);
}
}
Vec3 *Minecart::getPosOffs(double x, double y, double z, double offs)
{
int xt = Mth::floor(x);
int yt = Mth::floor(y);
int zt = Mth::floor(z);
if (RailTile::isRail(level, xt, yt - 1, zt))
{
yt--;
}
int tile = level->getTile(xt, yt, zt);
if (RailTile::isRail(tile))
{
int data = level->getData(xt, yt, zt);
if (((RailTile *) Tile::tiles[tile])->isUsesDataBit())
{
data &= RailTile::RAIL_DIRECTION_MASK;
}
y = yt;
if (data >= 2 && data <= 5)
{
y = yt + 1;
}
// 4J TODO Is this a good way to copy the bit of the array that we need?
int exits[2][3];
memcpy( &exits, (void *)EXITS[data], sizeof(int) * 2 * 3);
//int exits[2][3] = EXITS[data];
double xD = exits[1][0] - exits[0][0];
double zD = exits[1][2] - exits[0][2];
double dd = sqrt(xD * xD + zD * zD);
xD /= dd;
zD /= dd;
x += xD * offs;
z += zD * offs;
if (exits[0][1] != 0 && Mth::floor(x) - xt == exits[0][0] && Mth::floor(z) - zt == exits[0][2])
{
y += exits[0][1];
}
else if (exits[1][1] != 0 && Mth::floor(x) - xt == exits[1][0] && Mth::floor(z) - zt == exits[1][2])
{
y += exits[1][1];
}
else
{
}
return getPos(x, y, z);
}
return NULL;
}
Vec3 *Minecart::getPos(double x, double y, double z)
{
int xt = Mth::floor(x);
int yt = Mth::floor(y);
int zt = Mth::floor(z);
if (RailTile::isRail(level, xt, yt - 1, zt))
{
yt--;
}
int tile = level->getTile(xt, yt, zt);
if (RailTile::isRail(tile))
{
int data = level->getData(xt, yt, zt);
y = yt;
if (((RailTile *) Tile::tiles[tile])->isUsesDataBit())
{
data &= RailTile::RAIL_DIRECTION_MASK;
}
if (data >= 2 && data <= 5)
{
y = yt + 1;
}
// 4J TODO Is this a good way to copy the bit of the array that we need?
int exits[2][3];
memcpy( &exits, (void *)EXITS[data], sizeof(int) * 2 * 3);
//int exits[2][3] = EXITS[data];
double progress = 0;
double x0 = xt + 0.5 + exits[0][0] * 0.5;
double y0 = yt + 0.5 + exits[0][1] * 0.5;
double z0 = zt + 0.5 + exits[0][2] * 0.5;
double x1 = xt + 0.5 + exits[1][0] * 0.5;
double y1 = yt + 0.5 + exits[1][1] * 0.5;
double z1 = zt + 0.5 + exits[1][2] * 0.5;
double xD = x1 - x0;
double yD = (y1 - y0) * 2;
double zD = z1 - z0;
if (xD == 0)
{
x = xt + 0.5;
progress = z - zt;
}
else if (zD == 0)
{
z = zt + 0.5;
progress = x - xt;
}
else
{
double xx = x - x0;
double zz = z - z0;
progress = (xx * xD + zz * zD) * 2;
}
x = x0 + xD * progress;
y = y0 + yD * progress;
z = z0 + zD * progress;
if (yD < 0) y += 1;
if (yD > 0) y += 0.5;
return Vec3::newTemp(x, y, z);
}
return NULL;
}
void Minecart::addAdditonalSaveData(CompoundTag *base)
{
base->putInt(L"Type", type);
if (type == Minecart::FURNACE)
{
base->putDouble(L"PushX", xPush);
base->putDouble(L"PushZ", zPush);
base->putShort(L"Fuel", (short) fuel);
}
else if (type == Minecart::CHEST)
{
ListTag<CompoundTag> *listTag = new ListTag<CompoundTag>();
for (unsigned int i = 0; i < items->length; i++)
{
if ( (*items)[i] != NULL)
{
CompoundTag *tag = new CompoundTag();
tag->putByte(L"Slot", (byte) i);
(*items)[i]->save(tag);
listTag->add(tag);
}
}
base->put(L"Items", listTag);
}
}
void Minecart::readAdditionalSaveData(CompoundTag *base)
{
type = base->getInt(L"Type");
if (type == Minecart::FURNACE)
{
xPush = base->getDouble(L"PushX");
zPush = base->getDouble(L"PushZ");
fuel = base->getShort(L"Fuel");
}
else if (type == Minecart::CHEST)
{
ListTag<CompoundTag> *inventoryList = (ListTag<CompoundTag> *) base->getList(L"Items");
items = new ItemInstanceArray( getContainerSize() );
for (int i = 0; i < inventoryList->size(); i++)
{
CompoundTag *tag = inventoryList->get(i);
unsigned int slot = tag->getByte(L"Slot") & 0xff;
if (slot >= 0 && slot < items->length) (*items)[slot] = shared_ptr<ItemInstance>( ItemInstance::fromTag(tag) );
}
}
}
float Minecart::getShadowHeightOffs()
{
return 0;
}
void Minecart::push(shared_ptr<Entity> e)
{
if (level->isClientSide) return;
if (e == rider.lock()) return;
if (( dynamic_pointer_cast<Mob>(e)!=NULL) && dynamic_pointer_cast<Player>(e)==NULL && dynamic_pointer_cast<VillagerGolem>(e) == NULL && type == Minecart::RIDEABLE && xd * xd + zd * zd > 0.01)
{
if (rider.lock() == NULL && e->riding == NULL)
{
e->ride( shared_from_this() );
}
}
double xa = e->x - x;
double za = e->z - z;
double dd = xa * xa + za * za;
if (dd >= 0.0001f)
{
dd = sqrt(dd);
xa /= dd;
za /= dd;
double pow = 1 / dd;
if (pow > 1) pow = 1;
xa *= pow;
za *= pow;
xa *= 0.1f;
za *= 0.1f;
xa *= 1 - pushthrough;
za *= 1 - pushthrough;
xa *= 0.5;
za *= 0.5;
if (e->GetType() == eTYPE_MINECART)
{
double xo = e->x - x;
double zo = e->z - z;
//4J Stu - Brought forward changes to fix minecarts pushing each other
// Fix for #38882 - TU5: Gameplay: Minecart with furnace is not able to move another minecart on the rail.
Vec3 *dir = Vec3::newTemp(xo, 0, zo)->normalize();
Vec3 *facing = Vec3::newTemp(cos(yRot * PI / 180), 0, sin(yRot * PI / 180))->normalize();
double dot = abs(dir->dot(facing));
if (dot < 0.8f)
{
return;
}
double xdd = (e->xd + xd);
double zdd = (e->zd + zd);
shared_ptr<Minecart> cart = dynamic_pointer_cast<Minecart>(e);
if (cart != NULL && cart->type == Minecart::FURNACE && type != Minecart::FURNACE)
{
xd *= 0.2f;
zd *= 0.2f;
this->Entity::push( e->xd - xa, 0, e->zd - za);
e->xd *= 0.95f;
e->zd *= 0.95f;
m_bHasPushedCartThisTick = true;
}
else if (cart != NULL && cart->type != Minecart::FURNACE && type == Minecart::FURNACE)
{
e->xd *= 0.2f;
e->zd *= 0.2f;
e->push(xd + xa, 0, zd + za);
xd *= 0.95f;
zd *= 0.95f;
m_bHasPushedCartThisTick = true;
}
else
{
xdd /= 2;
zdd /= 2;
xd *= 0.2f;
zd *= 0.2f;
this->Entity::push(xdd - xa, 0, zdd - za);
e->xd *= 0.2f;
e->zd *= 0.2f;
e->push(xdd + xa, 0, zdd + za);
m_bHasPushedCartThisTick = true;
// 4J Stu - Fix for #46937 - TU5: Gameplay: Crash/Freeze occurs when a minecart with an animal inside will be forced to despawn
// Minecarts can end up stuck inside each other, so if they are too close then they should separate quickly
double modifier = 1.0;
if( abs(xo) < 1 && abs(zo) < 1)
{
modifier += 1-( (abs(xo) + abs(zo))/2);
}
// 4J Stu - Decelerate the cart that is pushing this one if they are too close
e->xd /= modifier;
e->zd /= modifier;
// 4J Backup fix for QNAN
if( !(xd==xd) ) xd = 0;
if( !(zd==zd) ) zd = 0;
if( !(e->xd == e->xd) ) e->xd = 0;
if( !(e->zd == e->zd) ) e->zd = 0;
}
}
else
{
this->Entity::push(-xa, 0, -za);
e->push(xa / 4, 0, za / 4);
}
}
}
unsigned int Minecart::getContainerSize()
{
return 9 * 3;
}
shared_ptr<ItemInstance> Minecart::getItem(unsigned int slot)
{
return (*items)[slot];
}
shared_ptr<ItemInstance> Minecart::removeItem(unsigned int slot, int count)
{
if ( (*items)[slot] != NULL)
{
if ( (*items)[slot]->count <= count)
{
shared_ptr<ItemInstance> item = (*items)[slot];
(*items)[slot] = nullptr;
return item;
}
else
{
shared_ptr<ItemInstance> i = (*items)[slot]->remove(count);
if ((*items)[slot]->count == 0) (*items)[slot] = nullptr;
return i;
}
}
return nullptr;
}
shared_ptr<ItemInstance> Minecart::removeItemNoUpdate(int slot)
{
if ( (*items)[slot] != NULL)
{
shared_ptr<ItemInstance> item = (*items)[slot];
(*items)[slot] = nullptr;
return item;
}
return nullptr;
}
void Minecart::setItem(unsigned int slot, shared_ptr<ItemInstance> item)
{
(*items)[slot] = item;
if (item != NULL && item->count > getMaxStackSize()) item->count = getMaxStackSize();
}
int Minecart::getName()
{
return IDS_ITEM_MINECART;
}
int Minecart::getMaxStackSize()
{
return Container::LARGE_MAX_STACK_SIZE;
}
void Minecart::setChanged()
{
}
bool Minecart::interact(shared_ptr<Player> player)
{
if (type == Minecart::RIDEABLE)
{
if (rider.lock() != NULL && dynamic_pointer_cast<Player>(rider.lock())!=NULL && rider.lock() != player) return true;
if (!level->isClientSide)
{
// 4J HEG - Fixed issue with player not being able to dismount minecart (issue #4455)
player->ride( rider.lock() == player ? nullptr : shared_from_this() );
}
}
else if (type == Minecart::CHEST)
{
if ( player->isAllowedToInteract(shared_from_this()) )
{
if (!level->isClientSide)
player->openContainer( dynamic_pointer_cast<Container>( shared_from_this() ) );
}
else
{
return false;
}
}
else if (type == Minecart::FURNACE)
{
shared_ptr<ItemInstance> selected = player->inventory->getSelected();
if (selected != NULL && selected->id == Item::coal->id)
{
if (--selected->count == 0) player->inventory->setItem(player->inventory->selected, nullptr);
fuel += SharedConstants::TICKS_PER_SECOND * 180;
}
xPush = x - player->x;
zPush = z - player->z;
}
return true;
}
float Minecart::getLootContent()
{
int count = 0;
for (unsigned int i = 0; i < items->length; i++)
{
if ( (*items)[i] != NULL) count++;
}
return count / (float) items->length;
}
void Minecart::lerpTo(double x, double y, double z, float yRot, float xRot, int steps)
{
lx = x;
ly = y;
lz = z;
lyr = yRot;
lxr = xRot;
lSteps = steps + 2;
this->xd = lxd;
this->yd = lyd;
this->zd = lzd;
}
void Minecart::lerpMotion(double xd, double yd, double zd)
{
lxd = this->xd = xd;
lyd = this->yd = yd;
lzd = this->zd = zd;
}
bool Minecart::stillValid(shared_ptr<Player> player)
{
if (this->removed) return false;
if (player->distanceToSqr(shared_from_this()) > 8 * 8) return false;
return true;
}
bool Minecart::hasFuel()
{
return (entityData->getByte(DATA_ID_FUEL) & 1) != 0;
}
void Minecart::setHasFuel(bool fuel)
{
if (fuel)
{
entityData->set(DATA_ID_FUEL, (byte) (entityData->getByte(DATA_ID_FUEL) | 1));
}
else
{
entityData->set(DATA_ID_FUEL, (byte) (entityData->getByte(DATA_ID_FUEL) & ~1));
}
}
void Minecart::startOpen()
{
// TODO Auto-generated method stub
}
void Minecart::stopOpen()
{
// TODO Auto-generated method stub
}
void Minecart::setDamage(int damage)
{
entityData->set(DATA_ID_DAMAGE, damage);
}
int Minecart::getDamage()
{
return entityData->getInteger(DATA_ID_DAMAGE);
}
void Minecart::setHurtTime(int hurtTime)
{
entityData->set(DATA_ID_HURT, hurtTime);
}
int Minecart::getHurtTime()
{
return entityData->getInteger(DATA_ID_HURT);
}
void Minecart::setHurtDir(int hurtDir)
{
entityData->set(DATA_ID_HURTDIR, hurtDir);
}
int Minecart::getHurtDir()
{
return entityData->getInteger(DATA_ID_HURTDIR);
}
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