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Parcels/src/main/kotlin/io/dico/parcels2/WorldGenerator.kt
2018-07-30 13:35:45 +01:00

291 lines
11 KiB
Kotlin

package io.dico.parcels2
import io.dico.parcels2.blockvisitor.Worker
import io.dico.parcels2.blockvisitor.RegionTraversal
import io.dico.parcels2.util.*
import org.bukkit.*
import org.bukkit.Bukkit.createBlockData
import org.bukkit.block.Biome
import org.bukkit.block.Block
import org.bukkit.block.BlockFace
import org.bukkit.block.Skull
import org.bukkit.block.data.BlockData
import org.bukkit.block.data.type.Sign
import org.bukkit.block.data.type.Slab
import org.bukkit.entity.Entity
import org.bukkit.generator.BlockPopulator
import org.bukkit.generator.ChunkGenerator
import java.util.*
import kotlin.coroutines.experimental.buildIterator
import kotlin.reflect.KClass
abstract class ParcelGenerator : ChunkGenerator(), ParcelProvider {
abstract val world: ParcelWorld
abstract val factory: GeneratorFactory
abstract override fun generateChunkData(world: World?, random: Random?, chunkX: Int, chunkZ: Int, biome: BiomeGrid?): ChunkData
abstract fun populate(world: World?, random: Random?, chunk: Chunk?)
abstract override fun getFixedSpawnLocation(world: World?, random: Random?): Location
override fun getDefaultPopulators(world: World?): MutableList<BlockPopulator> {
return Collections.singletonList(object : BlockPopulator() {
override fun populate(world: World?, random: Random?, chunk: Chunk?) {
this@ParcelGenerator.populate(world, random, chunk)
}
})
}
abstract fun updateOwner(parcel: Parcel)
abstract fun getBottomCoord(parcel: Parcel): Vec2i
abstract fun getHomeLocation(parcel: Parcel): Location
abstract fun setBiome(parcel: Parcel, biome: Biome)
abstract fun getEntities(parcel: Parcel): Collection<Entity>
abstract fun getBlocks(parcel: Parcel, yRange: IntRange = 0..255): Iterator<Block>
abstract fun clearParcel(parcel: Parcel): Worker
}
interface GeneratorFactory {
companion object GeneratorFactories {
private val map: MutableMap<String, GeneratorFactory> = HashMap()
fun registerFactory(generator: GeneratorFactory): Boolean = map.putIfAbsent(generator.name, generator) == null
fun getFactory(name: String): GeneratorFactory? = map.get(name)
init {
registerFactory(DefaultParcelGenerator.Factory)
}
}
val name: String
val optionsClass: KClass<out GeneratorOptions>
fun newParcelGenerator(worlds: Worlds, worldName: String, options: GeneratorOptions): ParcelGenerator
}
class DefaultParcelGenerator(val worlds: Worlds, val name: String, private val o: DefaultGeneratorOptions) : ParcelGenerator() {
override val world: ParcelWorld by lazy { worlds.getWorld(name)!! }
override val factory = Factory
val worktimeLimiter = worlds.plugin.worktimeLimiter
val maxHeight by lazy { world.world.maxHeight }
val airType = worlds.plugin.server.createBlockData(Material.AIR)
companion object Factory : GeneratorFactory {
override val name get() = "default"
override val optionsClass get() = DefaultGeneratorOptions::class
override fun newParcelGenerator(worlds: Worlds, worldName: String, options: GeneratorOptions): ParcelGenerator {
return DefaultParcelGenerator(worlds, worldName, options as DefaultGeneratorOptions)
}
}
val sectionSize = o.parcelSize + o.pathSize
val pathOffset = (if (o.pathSize % 2 == 0) o.pathSize + 2 else o.pathSize + 1) / 2
val makePathMain = o.pathSize > 2
val makePathAlt = o.pathSize > 4
private inline fun <T> generate(chunkX: Int,
chunkZ: Int,
floor: T, wall:
T, pathMain: T,
pathAlt: T,
fill: T,
setter: (Int, Int, Int, T) -> Unit) {
val floorHeight = o.floorHeight
val parcelSize = o.parcelSize
val sectionSize = sectionSize
val pathOffset = pathOffset
val makePathMain = makePathMain
val makePathAlt = makePathAlt
// parcel bottom x and z
// umod is unsigned %: the result is always >= 0
val pbx = ((chunkX shl 4) - o.offsetX) umod sectionSize
val pbz = ((chunkZ shl 4) - o.offsetZ) umod sectionSize
var curHeight: Int
var x: Int
var z: Int
for (cx in 0..15) {
for (cz in 0..15) {
x = (pbx + cx) % sectionSize - pathOffset
z = (pbz + cz) % sectionSize - pathOffset
curHeight = floorHeight
val type = when {
(x in 0 until parcelSize && z in 0 until parcelSize) -> floor
(x in -1..parcelSize && z in -1..parcelSize) -> {
curHeight++
wall
}
(makePathAlt && x in -2 until parcelSize + 2 && z in -2 until parcelSize + 2) -> pathAlt
(makePathMain) -> pathMain
else -> {
curHeight++
wall
}
}
for (y in 0 until curHeight) {
setter(cx, y, cz, fill)
}
setter(cx, curHeight, cz, type)
}
}
}
override fun generateChunkData(world: World?, random: Random?, chunkX: Int, chunkZ: Int, biome: BiomeGrid?): ChunkData {
val out = Bukkit.createChunkData(world)
generate(chunkX, chunkZ, o.floorType, o.wallType, o.pathMainType, o.pathAltType, o.fillType) { x, y, z, type ->
out.setBlock(x, y, z, type)
}
return out
}
override fun populate(world: World?, random: Random?, chunk: Chunk?) {
/*
generate(chunk!!.x, chunk.z, o.floorType.data, o.wallType.data, o.pathMainType.data, o.pathAltType.data, o.fillType.data) { x, y, z, type ->
if (type == 0.toByte()) chunk.getBlock(x, y, z).setData(type, false)
}
*/
}
override fun getFixedSpawnLocation(world: World?, random: Random?): Location {
val fix = if (o.parcelSize.even) 0.5 else 0.0
return Location(world, o.offsetX + fix, o.floorHeight + 1.0, o.offsetZ + fix)
}
override fun parcelAt(x: Int, z: Int): Parcel? {
val sectionSize = sectionSize
val parcelSize = o.parcelSize
val absX = x - o.offsetX - pathOffset
val absZ = z - o.offsetZ - pathOffset
val modX = absX umod sectionSize
val modZ = absZ umod sectionSize
if (0 <= modX && modX < parcelSize && 0 <= modZ && modZ < parcelSize) {
return world.parcelByID((absX - modX) / sectionSize, (absZ - modZ) / sectionSize)
}
return null
}
override fun getBottomCoord(parcel: Parcel): Vec2i = Vec2i(sectionSize * parcel.pos.x + pathOffset + o.offsetX,
sectionSize * parcel.pos.z + pathOffset + o.offsetZ)
override fun getHomeLocation(parcel: Parcel): Location {
val bottom = getBottomCoord(parcel)
return Location(world.world, bottom.x.toDouble(), o.floorHeight + 1.0, bottom.z + (o.parcelSize - 1) / 2.0, -90F, 0F)
}
override fun updateOwner(parcel: Parcel) {
val world = this.world.world
val b = getBottomCoord(parcel)
val wallBlock = world.getBlockAt(b.x - 1, o.floorHeight + 1, b.z - 1)
val signBlock = world.getBlockAt(b.x - 2, o.floorHeight + 1, b.z - 1)
val skullBlock = world.getBlockAt(b.x - 1, o.floorHeight + 2, b.z - 1)
val owner = parcel.owner
if (owner == null) {
wallBlock.blockData = o.wallType
signBlock.type = Material.AIR
skullBlock.type = Material.AIR
} else {
val wallBlockType: BlockData = if (o.wallType is Slab)
(o.wallType.clone() as Slab).apply { type = Slab.Type.DOUBLE }
else
o.wallType
wallBlock.blockData = wallBlockType
signBlock.blockData = (createBlockData(Material.WALL_SIGN) as Sign).apply { rotation = BlockFace.NORTH }
val sign = signBlock.state as org.bukkit.block.Sign
sign.setLine(0, parcel.id)
sign.setLine(2, owner.playerName)
sign.update()
skullBlock.type = Material.PLAYER_HEAD
val skull = skullBlock.state as Skull
if (owner.uuid != null) {
skull.owningPlayer = owner.offlinePlayer
} else {
skull.owner = owner.name
}
skull.rotation = BlockFace.WEST
skull.update()
}
}
override fun setBiome(parcel: Parcel, biome: Biome) {
val world = this.world.world
val b = getBottomCoord(parcel)
val parcelSize = o.parcelSize
for (x in b.x until b.x + parcelSize) {
for (z in b.z until b.z + parcelSize) {
world.setBiome(x, z, biome)
}
}
}
override fun getEntities(parcel: Parcel): Collection<Entity> {
val world = this.world.world
val b = getBottomCoord(parcel)
val parcelSize = o.parcelSize
val center = Location(world, (b.x + parcelSize) / 2.0, 128.0, (b.z + parcelSize) / 2.0)
return world.getNearbyEntities(center, parcelSize / 2.0 + 0.2, 128.0, parcelSize / 2.0 + 0.2)
}
override fun getBlocks(parcel: Parcel, yRange: IntRange): Iterator<Block> = buildIterator {
val range = yRange.clamp(0, 255)
val world = this@DefaultParcelGenerator.world.world
val b = getBottomCoord(parcel)
val parcelSize = o.parcelSize
for (x in b.x until b.x + parcelSize) {
for (z in b.z until b.z + parcelSize) {
for (y in range) {
yield(world.getBlockAt(x, y, z))
}
}
}
}
override fun clearParcel(parcel: Parcel) = worktimeLimiter.submit {
val bottom = getBottomCoord(parcel)
val region = Region(Vec3i(bottom.x, 0, bottom.z), Vec3i(o.parcelSize, maxHeight + 1, o.parcelSize))
val blocks = RegionTraversal.XZY.regionTraverser(region)
val blockCount = region.blockCount.toDouble()
val world = world.world
val floorHeight = o.floorHeight
val airType = airType; val floorType = o.floorType; val fillType = o.fillType
for ((index, vec) in blocks.withIndex()) {
markSuspensionPoint()
val y = vec.y
val blockType = when {
y > floorHeight -> airType
y == floorHeight -> floorType
else -> fillType
}
world[vec].blockData = blockType
setProgress((index + 1) / blockCount)
}
}
}