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

#include "../Platform/stdafx.h"
#include "VineTile.h"
#include "Material.h"
#include "../Util/JavaMath.h"
#include "../Util/Facing.h"
#include "../Headers/net.minecraft.world.level.h"
#include "../Headers/net.minecraft.world.item.h"
#include "../Headers/net.minecraft.stats.h"
#include "../Headers/net.minecraft.world.level.biome.h"
#include "Util/AABB.h"

VineTile::VineTile(int id)
    : Tile(id, Material::replaceable_plant, false) {
    setTicking(true);
}

void VineTile::updateDefaultShape() { setShape(0, 0, 0, 1, 1, 1); }

int VineTile::getRenderShape() { return SHAPE_VINE; }

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

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

void VineTile::updateShape(
    LevelSource* level, int x, int y, int z, int forceData,
    std::shared_ptr<TileEntity>
        forceEntity)  // 4J added forceData, forceEntity param
{
    const float thickness = 1.0f / 16.0f;

    int facings = level->getData(x, y, z);

    float minX = 1;
    float minY = 1;
    float minZ = 1;
    float maxX = 0;
    float maxY = 0;
    float maxZ = 0;
    bool hasWall = facings > 0;

    if ((facings & VINE_WEST) != 0) {
        maxX = Math::_max(maxX, thickness);
        minX = 0;
        minY = 0;
        maxY = 1;
        minZ = 0;
        maxZ = 1;
        hasWall = true;
    }
    if ((facings & VINE_EAST) != 0) {
        minX = Math::_min(minX, 1 - thickness);
        maxX = 1;
        minY = 0;
        maxY = 1;
        minZ = 0;
        maxZ = 1;
        hasWall = true;
    }
    if ((facings & VINE_NORTH) != 0) {
        maxZ = Math::_max(maxZ, thickness);
        minZ = 0;
        minX = 0;
        maxX = 1;
        minY = 0;
        maxY = 1;
        hasWall = true;
    }
    if ((facings & VINE_SOUTH) != 0) {
        minZ = Math::_min(minZ, 1 - thickness);
        maxZ = 1;
        minX = 0;
        maxX = 1;
        minY = 0;
        maxY = 1;
        hasWall = true;
    }
    if (!hasWall && isAcceptableNeighbor(level->getTile(x, y + 1, z))) {
        minY = Math::_min(minY, 1 - thickness);
        maxY = 1;
        minX = 0;
        maxX = 1;
        minZ = 0;
        maxZ = 1;
    }
    setShape(minX, minY, minZ, maxX, maxY, maxZ);
}

std::optional<AABB> VineTile::getAABB(Level* level, int x, int y, int z) { return std::nullopt; }

bool VineTile::mayPlace(Level* level, int x, int y, int z, int face) {
    switch (face) {
        default:
            return false;
        case Facing::UP:
            return isAcceptableNeighbor(level->getTile(x, y + 1, z));
        case Facing::NORTH:
            return isAcceptableNeighbor(level->getTile(x, y, z + 1));
        case Facing::SOUTH:
            return isAcceptableNeighbor(level->getTile(x, y, z - 1));
        case Facing::EAST:
            return isAcceptableNeighbor(level->getTile(x - 1, y, z));
        case Facing::WEST:
            return isAcceptableNeighbor(level->getTile(x + 1, y, z));
    }
}

bool VineTile::isAcceptableNeighbor(int id) {
    if (id == 0) return false;
    Tile* tile = Tile::tiles[id];
    if (tile->isCubeShaped() && tile->material->blocksMotion()) return true;
    return false;
}

bool VineTile::updateSurvival(Level* level, int x, int y, int z) {
    int facings = level->getData(x, y, z);
    int newFacings = facings;

    if (newFacings > 0) {
        for (int d = 0; d <= 3; d++) {
            int facing = 1 << d;
            if ((facings & facing) != 0) {
                if (!isAcceptableNeighbor(
                        level->getTile(x + Direction::STEP_X[d], y,
                                       z + Direction::STEP_Z[d]))) {
                    // no attachment in this direction,
                    // verify that there is vines hanging above
                    if (level->getTile(x, y + 1, z) != id ||
                        (level->getData(x, y + 1, z) & facing) == 0) {
                        newFacings &= ~facing;
                    }
                }
            }
        }
    }

    if (newFacings == 0) {
        // the block will die unless it has a roof
        if (!isAcceptableNeighbor(level->getTile(x, y + 1, z))) {
            return false;
        }
    }
    if (newFacings != facings) {
        level->setData(x, y, z, newFacings, Tile::UPDATE_CLIENTS);
    }
    return true;
}

int VineTile::getColor() const { return FoliageColor::getDefaultColor(); }

int VineTile::getColor(int auxData) { return FoliageColor::getDefaultColor(); }

int VineTile::getColor(LevelSource* level, int x, int y, int z, int data) {
    return getColor(level, x, y, z);
}

int VineTile::getColor(LevelSource* level, int x, int y, int z) {
    return level->getBiome(x, z)->getFolageColor();
}

void VineTile::neighborChanged(Level* level, int x, int y, int z, int type) {
    if (!level->isClientSide && !updateSurvival(level, x, y, z)) {
        spawnResources(level, x, y, z, level->getData(x, y, z), 0);
        level->removeTile(x, y, z);
    }
}

void VineTile::tick(Level* level, int x, int y, int z, Random* random) {
    if (!level->isClientSide) {
        if (level->random->nextInt(4) == 0) {
            // 4J - Brought side spread check forward from 1.2.3
            int r = 4;
            int max = 5;
            bool noSideSpread = false;
            for (int xx = x - r; xx <= x + r; xx++) {
                for (int zz = z - r; zz <= z + r; zz++)
                    for (int yy = y - 1; yy <= y + 1; yy++) {
                        if (level->getTile(xx, yy, zz) == id && --max <= 0) {
                            noSideSpread = true;
                            goto testLoop;
                        }
                    }
            testLoop:
                if (noSideSpread) break;
            }

            int currentFacings = level->getData(x, y, z);
            int testFacing = level->random->nextInt(6);
            int testDirection = Direction::FACING_DIRECTION[testFacing];

            if (testFacing == Facing::UP && y < (Level::maxBuildHeight - 1) &&
                level->isEmptyTile(x, y + 1, z)) {
                // 4J - Brought side spread check forward from 1.2.3
                if (noSideSpread) return;

                // grow upwards, but only if there is something to cling to
                int spawnFacings = level->random->nextInt(16) & currentFacings;
                if (spawnFacings > 0) {
                    for (int d = 0; d <= 3; d++) {
                        if (!isAcceptableNeighbor(
                                level->getTile(x + Direction::STEP_X[d], y + 1,
                                               z + Direction::STEP_Z[d]))) {
                            spawnFacings &= ~(1 << d);
                        }
                    }
                    if (spawnFacings > 0) {
                        level->setTileAndData(x, y + 1, z, id, spawnFacings,
                                              Tile::UPDATE_CLIENTS);
                    }
                }
            } else if (testFacing >= Facing::NORTH &&
                       testFacing <= Facing::EAST &&
                       (currentFacings & (1 << testDirection)) == 0) {
                // 4J - Brought side spread check forward from 1.2.3
                if (noSideSpread) return;

                int edgeTile =
                    level->getTile(x + Direction::STEP_X[testDirection], y,
                                   z + Direction::STEP_Z[testDirection]);

                if (edgeTile == 0 || Tile::tiles[edgeTile] == NULL) {
                    // if the edge tile is air, we could possibly cling
                    // to something
                    int left = (testDirection + 1) & 3;
                    int right = (testDirection + 3) & 3;

                    // attempt to grow straight onto solid tiles
                    if ((currentFacings & (1 << left)) != 0 &&
                        isAcceptableNeighbor(level->getTile(
                            x + Direction::STEP_X[testDirection] +
                                Direction::STEP_X[left],
                            y,
                            z + Direction::STEP_Z[testDirection] +
                                Direction::STEP_Z[left]))) {
                        level->setTileAndData(
                            x + Direction::STEP_X[testDirection], y,
                            z + Direction::STEP_Z[testDirection], id, 1 << left,
                            Tile::UPDATE_CLIENTS);
                    } else if ((currentFacings & (1 << right)) != 0 &&
                               isAcceptableNeighbor(level->getTile(
                                   x + Direction::STEP_X[testDirection] +
                                       Direction::STEP_X[right],
                                   y,
                                   z + Direction::STEP_Z[testDirection] +
                                       Direction::STEP_Z[right]))) {
                        level->setTileAndData(
                            x + Direction::STEP_X[testDirection], y,
                            z + Direction::STEP_Z[testDirection], id,
                            1 << right, Tile::UPDATE_CLIENTS);
                    }
                    // attempt to grow around corners, but only if the
                    // base tile is solid
                    else if ((currentFacings & (1 << left)) != 0 &&
                             level->isEmptyTile(
                                 x + Direction::STEP_X[testDirection] +
                                     Direction::STEP_X[left],
                                 y,
                                 z + Direction::STEP_Z[testDirection] +
                                     Direction::STEP_Z[left]) &&
                             isAcceptableNeighbor(
                                 level->getTile(x + Direction::STEP_X[left], y,
                                                z + Direction::STEP_Z[left]))) {
                        level->setTileAndData(
                            x + Direction::STEP_X[testDirection] +
                                Direction::STEP_X[left],
                            y,
                            z + Direction::STEP_Z[testDirection] +
                                Direction::STEP_Z[left],
                            id, 1 << ((testDirection + 2) & 3),
                            Tile::UPDATE_CLIENTS);
                    } else if ((currentFacings & (1 << right)) != 0 &&
                               level->isEmptyTile(
                                   x + Direction::STEP_X[testDirection] +
                                       Direction::STEP_X[right],
                                   y,
                                   z + Direction::STEP_Z[testDirection] +
                                       Direction::STEP_Z[right]) &&
                               isAcceptableNeighbor(level->getTile(
                                   x + Direction::STEP_X[right], y,
                                   z + Direction::STEP_Z[right]))) {
                        level->setTileAndData(
                            x + Direction::STEP_X[testDirection] +
                                Direction::STEP_X[right],
                            y,
                            z + Direction::STEP_Z[testDirection] +
                                Direction::STEP_Z[right],
                            id, 1 << ((testDirection + 2) & 3),
                            Tile::UPDATE_CLIENTS);
                    }
                    // attempt to grow onto the ceiling
                    else if (isAcceptableNeighbor(level->getTile(
                                 x + Direction::STEP_X[testDirection], y + 1,
                                 z + Direction::STEP_Z[testDirection]))) {
                        level->setTileAndData(
                            x + Direction::STEP_X[testDirection], y,
                            z + Direction::STEP_Z[testDirection], id, 0,
                            Tile::UPDATE_CLIENTS);
                    }

                } else if (Tile::tiles[edgeTile]->material->isSolidBlocking() &&
                           Tile::tiles[edgeTile]->isCubeShaped()) {
                    // we have a wall that we can cling to
                    level->setData(x, y, z,
                                   currentFacings | (1 << testDirection),
                                   Tile::UPDATE_CLIENTS);
                }
            }
            // growing downwards happens more often than the other
            // directions
            else if (y > 1) {
                int belowTile = level->getTile(x, y - 1, z);
                // grow downwards into air
                if (belowTile == 0) {
                    int spawnFacings =
                        level->random->nextInt(16) & currentFacings;
                    if (spawnFacings > 0) {
                        level->setTileAndData(x, y - 1, z, id, spawnFacings,
                                              Tile::UPDATE_CLIENTS);
                    }
                } else if (belowTile == id) {
                    int spawnFacings =
                        level->random->nextInt(16) & currentFacings;
                    int belowData = level->getData(x, y - 1, z);
                    if (belowData != (belowData | spawnFacings)) {
                        level->setData(x, y - 1, z, belowData | spawnFacings,
                                       Tile::UPDATE_CLIENTS);
                    }
                }
            }
        }
    }
}

int VineTile::getPlacedOnFaceDataValue(Level* level, int x, int y, int z,
                                       int face, float clickX, float clickY,
                                       float clickZ, int itemValue) {
    int facings = 0;
    switch (face) {
        case Facing::NORTH:
            facings = VINE_SOUTH;
            break;
        case Facing::SOUTH:
            facings = VINE_NORTH;
            break;
        case Facing::WEST:
            facings = VINE_EAST;
            break;
        case Facing::EAST:
            facings = VINE_WEST;
            break;
    }
    if (facings != 0) {
        return facings;
    }
    return itemValue;
}

int VineTile::getResource(int data, Random* random, int playerBonusLevel) {
    return 0;
}

int VineTile::getResourceCount(Random* random) { return 0; }

void VineTile::playerDestroy(Level* level, std::shared_ptr<Player> player,
                             int x, int y, int z, int data) {
    if (!level->isClientSide && player->getSelectedItem() != NULL &&
        player->getSelectedItem()->id == Item::shears->id) {
        player->awardStat(GenericStats::blocksMined(id),
                          GenericStats::param_blocksMined(id, data, 1));

        // drop leaf block instead of sapling
        popResource(
            level, x, y, z,
            std::shared_ptr<ItemInstance>(new ItemInstance(Tile::vine, 1, 0)));
    } else {
        Tile::playerDestroy(level, player, x, y, z, data);
    }
}