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package cat.freya.khs.bukkit.disguise
import cat.freya.khs.bukkit.KhsPlugin
import cat.freya.khs.bukkit.packet.BlockChangePacket
import cat.freya.khs.bukkit.packet.EntityTeleportPacket
import com.cryptomorin.xseries.XSound
import com.cryptomorin.xseries.messages.ActionBar
import kotlin.math.round
import org.bukkit.Location
import org.bukkit.Material
import org.bukkit.entity.AbstractHorse
import org.bukkit.entity.Entity as BukkitEntity
import org.bukkit.entity.EntityType
import org.bukkit.entity.FallingBlock
import org.bukkit.entity.LivingEntity
import org.bukkit.entity.Player as BukkitPlayer
import org.bukkit.potion.PotionEffect
import org.bukkit.potion.PotionEffectType
import org.bukkit.scoreboard.Team
private fun makeInvisible(entity: LivingEntity) {
if (entity.hasPotionEffect(PotionEffectType.INVISIBILITY)) return
entity.addPotionEffect(PotionEffect(PotionEffectType.INVISIBILITY, 1_000_000, 0, false, false))
}
private fun getCollidesTeam(plugin: KhsPlugin): Team? {
val KHS_DISGUISE_TEAM_NAME = "KHS_disguised"
val scoreboard = plugin.server.scoreboardManager?.mainScoreboard ?: return null
val team =
scoreboard.getTeam(KHS_DISGUISE_TEAM_NAME)
?: scoreboard.registerNewTeam(KHS_DISGUISE_TEAM_NAME)
team.setOption(Team.Option.COLLISION_RULE, Team.OptionStatus.NEVER)
team.setCanSeeFriendlyInvisibles(false)
return team
}
private fun setCollides(plugin: KhsPlugin, player: BukkitPlayer, collides: Boolean) {
if (plugin.shim.supports(9)) {
val team = getCollidesTeam(plugin)
if (collides) team?.removeEntry(player.name) else team?.addEntry(player.name)
} else {
val method = player.spigot().javaClass.getMethod("setCollidesWithEntities")
method.invoke(player, collides)
}
}
class Disguise(val plugin: KhsPlugin, val player: BukkitPlayer, val material: Material) {
var block: FallingBlock? = null
var blockLocation: Location? = null
var hitBox: AbstractHorse? = null
var timer: UInt = 0u
@Volatile var shouldBeSolid: Boolean = false
@Volatile var isSolid: Boolean = false
@Volatile var hasSolidifyingTask: Boolean = false
init {
// make sure the player does not collide
setCollides(plugin, player, false)
}
val entityId: Int?
get() = block?.entityId
val hitBoxId: Int?
get() = hitBox?.entityId
fun update() {
if (block?.isDead() != false) {
block?.remove()
respawnFallingBlock()
}
if (shouldBeSolid) {
if (!isSolid) {
isSolid = true
blockLocation = player.location.block.location
respawnHitbox()
}
sendBlockUpdate(blockLocation, material)
block?.setTicksLived(1)
} else if (isSolid) {
isSolid = false
removeHitbox()
removeFallingBlock()
respawnFallingBlock()
sendBlockUpdate(blockLocation, Material.AIR)
}
updateVisiblity()
teleportEntity(hitBox, true)
teleportEntity(block, isSolid)
// do this here is it can be
// cleared by the core game logic
makeInvisible(player)
}
fun remove() {
block?.remove()
removeHitbox()
setCollides(plugin, player, true)
player.removePotionEffect(PotionEffectType.INVISIBILITY)
if (isSolid) sendBlockUpdate(blockLocation, Material.AIR)
}
fun removeFallingBlock() {
block?.remove()
block = null
}
fun respawnFallingBlock() {
val world = player.location.world ?: return
val loc = player.location.add(0.0, 1000.0, 0.0)
val block: FallingBlock? =
runCatching { world.spawnFallingBlock(loc, material, 0x0) }.getOrElse { null }
if (block == null) return
if (plugin.shim.supports(10)) block.setGravity(false)
block.setDropItem(false)
block.setInvulnerable(true)
this.block = block
}
fun respawnHitbox() {
val world = player.location.world ?: return
// we only want the hitbox to be at our postion
// when we are solidified
val loc = player.location.add(0.0, 1000.0, 0.0)
val hitBox: AbstractHorse? =
if (plugin.shim.supports(11)) {
world.spawnEntity(loc, EntityType.SKELETON_HORSE) as AbstractHorse
} else {
world.spawnEntity(loc, EntityType.HORSE) as AbstractHorse
}
if (hitBox == null) return
if (plugin.shim.supports(10)) hitBox.setGravity(false)
val id = hitBox.uniqueId.toString()
if (plugin.shim.supports(9)) getCollidesTeam(plugin)?.addEntry(id)
hitBox.setAI(false)
hitBox.setInvulnerable(true)
hitBox.setCanPickupItems(false)
hitBox.setCollidable(false)
makeInvisible(hitBox)
this.hitBox = hitBox
}
fun removeHitbox() {
val hb = hitBox ?: return
val id = hb.uniqueId.toString()
hb.remove()
if (plugin.shim.supports(9)) getCollidesTeam(plugin)?.removeEntry(id)
hitBox == null
}
fun teleportEntity(entity: BukkitEntity?, center: Boolean) {
if (entity == null) return
val loc = player.location.clone()
if (center) {
loc.x = round(loc.x + 0.5) - 0.5
loc.y = round(loc.y)
loc.z = round(loc.z + 0.5) - 0.5
}
val packet = EntityTeleportPacket(entity, loc)
plugin.server.onlinePlayers.forEach { packet.send(it) }
}
fun sendBlockUpdate(location: Location?, material: Material) {
if (location == null) return
val packet = BlockChangePacket(location, material)
plugin.server.onlinePlayers.forEach {
if (it.uniqueId == player.uniqueId) return@forEach
packet.send(it)
}
}
fun updateVisiblity() {
val block = block ?: return
val show = !isSolid
plugin.server.onlinePlayers.forEach { target ->
if (target.uniqueId == player.uniqueId) return@forEach
if (show) {
plugin.entityHider.showEntity(target, block)
} else {
plugin.entityHider.hideEntity(target, block)
}
}
}
fun startSolidifying(lastLocation: Location) {
if (isSolid || hasSolidifyingTask) return
hasSolidifyingTask = true
solidifyUpdate(lastLocation, 3u)
}
fun solidifyUpdate(lastLocation: Location, time: UInt) {
val location = player.location
if ((lastLocation.world != location.world) || (lastLocation.distance(location) > 0.1)) {
hasSolidifyingTask = false
return
}
// we have solidified!
if (time == 0u) {
ActionBar.clearActionBar(player)
shouldBeSolid = true
hasSolidifyingTask = false
return
}
// still waiting
ActionBar.sendActionBar(player, "▪".repeat(time.toInt()))
XSound.BLOCK_NOTE_BLOCK_PLING.play(player, 1f, 1f)
// schedule next update
plugin.server.scheduler.scheduleSyncDelayedTask(
plugin,
{ solidifyUpdate(lastLocation, time - 1u) },
20,
)
}
}
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