4jcraft/Minecraft.World/Blocks/TripWireTile.cpp

#include "../Platform/stdafx.h"
#include "../Headers/net.minecraft.world.item.h"
#include "../Headers/net.minecraft.world.level.h"
#include "../Headers/net.minecraft.world.level.tile.h"
#include "../Headers/net.minecraft.world.phys.h"
#include "TripWireTile.h"

TripWireTile::TripWireTile(int id) : Tile(id, Material::decoration, false) {
    setShape(0, 0, 0, 1, 2.5f / 16.0f, 1);
    this->setTicking(true);
}

int TripWireTile::getTickDelay(Level* level) {
    // 4J:	Increased (x2); quick update caused problems with shared
    //		data between client and server.
    return 20;  // 10;
}

AABB* TripWireTile::getAABB(Level* level, int x, int y, int z) { return NULL; }

bool TripWireTile::blocksLight() { return false; }

bool TripWireTile::isSolidRender(bool isServerLevel) { return false; }

bool TripWireTile::isCubeShaped() { return false; }

int TripWireTile::getRenderLayer() { return 1; }

int TripWireTile::getRenderShape() { return Tile::SHAPE_TRIPWIRE; }

int TripWireTile::getResource(int data, Random* random, int playerBonusLevel) {
    return Item::string_Id;
}

int TripWireTile::cloneTileId(Level* level, int x, int y, int z) {
    return Item::string_Id;
}

void TripWireTile::neighborChanged(Level* level, int x, int y, int z,
                                   int type) {
    int data = level->getData(x, y, z);
    bool wasSuspended = (data & MASK_SUSPENDED) == MASK_SUSPENDED;
    bool isSuspended = !level->isTopSolidBlocking(x, y - 1, z);
    if (wasSuspended != isSuspended) {
        spawnResources(level, x, y, z, data, 0);
        level->setTile(x, y, z, 0);
    }
}

void TripWireTile::updateShape(LevelSource* level, int x, int y, int z,
                               int forceData,
                               std::shared_ptr<TileEntity> forceEntity) {
    int data = level->getData(x, y, z);
    bool attached = (data & MASK_ATTACHED) == MASK_ATTACHED;
    bool suspended = (data & MASK_SUSPENDED) == MASK_SUSPENDED;

    if (!suspended) {
        setShape(0, 0, 0, 1, 1.5f / 16.0f, 1);
    } else if (!attached) {
        setShape(0, 0, 0, 1, 8.0f / 16.0f, 1);
    } else {
        setShape(0, 1.0f / 16.0f, 0, 1, 2.5f / 16.0f, 1);
    }
}

void TripWireTile::onPlace(Level* level, int x, int y, int z) {
    int data = level->isTopSolidBlocking(x, y - 1, z) ? 0 : MASK_SUSPENDED;
    level->setData(x, y, z, data);
    updateSource(level, x, y, z, data);
}

void TripWireTile::onRemove(Level* level, int x, int y, int z, int id,
                            int data) {
    updateSource(level, x, y, z, data | MASK_POWERED);
}

void TripWireTile::playerWillDestroy(Level* level, int x, int y, int z,
                                     int data, std::shared_ptr<Player> player) {
    if (level->isClientSide) return;

    if (player->getSelectedItem() != NULL &&
        player->getSelectedItem()->id == Item::shears_Id) {
        level->setData(x, y, z, data | MASK_DISARMED);
    }
}

void TripWireTile::updateSource(Level* level, int x, int y, int z, int data) {
    for (int dir = 0; dir < 2; dir++) {
        for (int i = 1; i < TripWireSourceTile::WIRE_DIST_MAX; i++) {
            int xx = x + Direction::STEP_X[dir] * i;
            int zz = z + Direction::STEP_Z[dir] * i;
            int tile = level->getTile(xx, y, zz);

            if (tile == Tile::tripWireSource_Id) {
                int sourceDir =
                    level->getData(xx, y, zz) & TripWireSourceTile::MASK_DIR;

                if (sourceDir == Direction::DIRECTION_OPPOSITE[dir]) {
                    Tile::tripWireSource->calculateState(
                        level, xx, y, zz, tile, level->getData(xx, y, zz), true,
                        i, data);
                }

                break;
            } else if (tile != Tile::tripWire_Id) {
                break;
            }
        }
    }
}

void TripWireTile::entityInside(Level* level, int x, int y, int z,
                                std::shared_ptr<Entity> entity) {
    if (level->isClientSide) return;

    if ((level->getData(x, y, z) & MASK_POWERED) == MASK_POWERED) return;

    checkPressed(level, x, y, z);
}

void TripWireTile::tick(Level* level, int x, int y, int z, Random* random) {
    if (level->isClientSide) return;

    if ((level->getData(x, y, z) & MASK_POWERED) != MASK_POWERED) return;

    checkPressed(level, x, y, z);
}

void TripWireTile::checkPressed(Level* level, int x, int y, int z) {
    int data = level->getData(x, y, z);
    bool wasPressed = (data & MASK_POWERED) == MASK_POWERED;
    bool shouldBePressed = false;

    ThreadStorage* tls = (ThreadStorage*)TlsGetValue(Tile::tlsIdxShape);
    std::vector<std::shared_ptr<Entity> >* entities = level->getEntities(
        nullptr, AABB::newTemp(x + tls->xx0, y + tls->yy0, z + tls->zz0,
                               x + tls->xx1, y + tls->yy1, z + tls->zz1));
    if (!entities->empty()) {
        shouldBePressed = true;
    }

    if (shouldBePressed && !wasPressed) {
        data |= MASK_POWERED;
    }

    if (!shouldBePressed && wasPressed) {
        data &= ~MASK_POWERED;
    }

    if (shouldBePressed != wasPressed) {
        level->setData(x, y, z, data);
        updateSource(level, x, y, z, data);
    }

    if (shouldBePressed) {
        level->addToTickNextTick(x, y, z, id, getTickDelay(level));
    }
}

bool TripWireTile::shouldConnectTo(LevelSource* level, int x, int y, int z,
                                   int data, int dir) {
    int tx = x + Direction::STEP_X[dir];
    int ty = y;
    int tz = z + Direction::STEP_Z[dir];
    int t = level->getTile(tx, ty, tz);
    bool suspended = (data & MASK_SUSPENDED) == MASK_SUSPENDED;

    if (t == Tile::tripWireSource_Id) {
        int otherData = level->getData(tx, ty, tz);
        int facing = otherData & TripWireSourceTile::MASK_DIR;

        return facing == Direction::DIRECTION_OPPOSITE[dir];
    }

    if (t == Tile::tripWire_Id) {
        int otherData = level->getData(tx, ty, tz);
        bool otherSuspended = (otherData & MASK_SUSPENDED) == MASK_SUSPENDED;
        return suspended == otherSuspended;
    }

    return false;
}