311 lines
14 KiB
Java
311 lines
14 KiB
Java
package carpet.script.api;
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import carpet.script.CarpetContext;
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import carpet.script.CarpetEventServer;
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import carpet.script.CarpetScriptHost;
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import carpet.script.Expression;
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import carpet.script.LazyValue;
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import carpet.script.argument.FunctionArgument;
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import carpet.script.argument.Vector3Argument;
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import carpet.script.exception.InternalExpressionException;
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import carpet.script.value.EntityValue;
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import carpet.script.value.FunctionValue;
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import carpet.script.value.ListValue;
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import carpet.script.value.NBTSerializableValue;
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import carpet.script.value.NumericValue;
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import carpet.script.value.Value;
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import com.mojang.brigadier.StringReader;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import net.minecraft.entity.Entity;
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import net.minecraft.entity.EntityType;
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import net.minecraft.entity.SpawnReason;
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import net.minecraft.entity.mob.MobEntity;
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import net.minecraft.entity.player.PlayerEntity;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.predicate.entity.EntityPredicates;
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import net.minecraft.server.network.ServerPlayerEntity;
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import net.minecraft.server.world.ServerWorld;
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import net.minecraft.util.Identifier;
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import net.minecraft.util.math.Box;
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import net.minecraft.util.math.Vec3d;
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import net.minecraft.util.registry.Registry;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import java.util.stream.Collectors;
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public class Entities {
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public static void apply(Expression expression)
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{
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expression.addLazyFunction("player", -1, (c, t, lv) ->
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{
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if (lv.size() ==0)
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{
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Entity callingEntity = ((CarpetContext)c).s.getEntity();
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if (callingEntity instanceof PlayerEntity)
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{
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Value retval = new EntityValue(callingEntity);
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return (_c, _t) -> retval;
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}
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Vec3d pos = ((CarpetContext)c).s.getPosition();
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PlayerEntity closestPlayer = ((CarpetContext)c).s.getWorld().getClosestPlayer(pos.x, pos.y, pos.z, -1.0, EntityPredicates.VALID_ENTITY);
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if (closestPlayer != null)
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{
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Value retval = new EntityValue(closestPlayer);
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return (_c, _t) -> retval;
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}
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return (_c, _t) -> Value.NULL;
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}
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String playerName = lv.get(0).evalValue(c).getString();
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Value retval = Value.NULL;
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if ("all".equalsIgnoreCase(playerName))
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{
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retval = ListValue.wrap(
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((CarpetContext)c).s.getMinecraftServer().getPlayerManager().getPlayerList().
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stream().map(EntityValue::new).collect(Collectors.toList()));
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}
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else if ("*".equalsIgnoreCase(playerName))
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{
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retval = ListValue.wrap(
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((CarpetContext)c).s.getWorld().getPlayers().
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stream().map(EntityValue::new).collect(Collectors.toList()));
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}
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else if ("survival".equalsIgnoreCase(playerName))
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{
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retval = ListValue.wrap(
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((CarpetContext)c).s.getWorld().getPlayers((p) -> p.interactionManager.isSurvivalLike()).
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stream().map(EntityValue::new).collect(Collectors.toList()));
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}
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else if ("creative".equalsIgnoreCase(playerName))
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{
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retval = ListValue.wrap(
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((CarpetContext)c).s.getWorld().getPlayers(PlayerEntity::isCreative).
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stream().map(EntityValue::new).collect(Collectors.toList()));
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}
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else if ("spectating".equalsIgnoreCase(playerName))
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{
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retval = ListValue.wrap(
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((CarpetContext)c).s.getWorld().getPlayers(PlayerEntity::isSpectator).
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stream().map(EntityValue::new).collect(Collectors.toList()));
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}
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else if ("!spectating".equalsIgnoreCase(playerName))
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{
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retval = ListValue.wrap(
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((CarpetContext)c).s.getWorld().getPlayers((p) -> !p.isSpectator()).
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stream().map(EntityValue::new).collect(Collectors.toList()));
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}
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else
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{
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ServerPlayerEntity player = ((CarpetContext) c).s.getMinecraftServer().getPlayerManager().getPlayer(playerName);
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if (player != null)
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retval = new EntityValue(player);
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}
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Value finalVar = retval;
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return (cc, tt) -> finalVar;
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});
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expression.addLazyFunction("spawn", -1, (c, t, lv) ->
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{
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CarpetContext cc = (CarpetContext)c;
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if (lv.size() < 2)
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throw new InternalExpressionException("'spawn' function takes mob name, and position to spawn");
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String entityString = lv.get(0).evalValue(c).getString();
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Identifier entityId;
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try
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{
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entityId = Identifier.fromCommandInput(new StringReader(entityString));
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EntityType<? extends Entity> type = Registry.ENTITY_TYPE.getOrEmpty(entityId).orElse(null);
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if (type == null || !type.isSummonable())
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return LazyValue.NULL;
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}
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catch (CommandSyntaxException exception)
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{
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return LazyValue.NULL;
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}
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Vector3Argument position = Vector3Argument.findIn(cc, lv, 1);
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if (position.fromBlock)
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position.vec = position.vec.subtract(0, 0.5, 0);
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CompoundTag tag = new CompoundTag();
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boolean hasTag = false;
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if (lv.size() > position.offset)
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{
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Value nbt = lv.get(position.offset).evalValue(c);
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NBTSerializableValue v = (nbt instanceof NBTSerializableValue) ? (NBTSerializableValue) nbt
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: NBTSerializableValue.parseString(nbt.getString());
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hasTag = true;
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tag = v.getCompoundTag();
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}
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tag.putString("id", entityId.toString());
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Vec3d vec3d = position.vec;
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ServerWorld serverWorld = cc.s.getWorld();
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Entity entity_1 = EntityType.loadEntityWithPassengers(tag, serverWorld, (entity_1x) -> {
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entity_1x.refreshPositionAndAngles(vec3d.x, vec3d.y, vec3d.z, entity_1x.yaw, entity_1x.pitch);
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return !serverWorld.tryLoadEntity(entity_1x) ? null : entity_1x;
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});
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if (entity_1 == null) {
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return LazyValue.NULL;
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} else {
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if (!hasTag && entity_1 instanceof MobEntity) {
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((MobEntity)entity_1).initialize(serverWorld, serverWorld.getLocalDifficulty(entity_1.getBlockPos()), SpawnReason.COMMAND, null, null);
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}
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Value res = new EntityValue(entity_1);
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return (_c, _t) -> res;
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}
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});
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expression.addLazyFunction("entity_id", 1, (c, t, lv) ->
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{
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Value who = lv.get(0).evalValue(c);
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Entity e;
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if (who instanceof NumericValue)
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{
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e = ((CarpetContext)c).s.getWorld().getEntityById((int)((NumericValue) who).getLong());
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}
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else
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{
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e = ((CarpetContext)c).s.getWorld().getEntity(UUID.fromString(who.getString()));
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}
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if (e==null)
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{
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return LazyValue.NULL;
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}
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return (cc, tt) -> new EntityValue(e);
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});
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expression.addLazyFunction("entity_list", 1, (c, t, lv) ->
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{
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String who = lv.get(0).evalValue(c).getString();
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EntityValue.EntityClassDescriptor eDesc = EntityValue.getEntityDescriptor(who);
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List<? extends Entity> entityList = ((CarpetContext)c).s.getWorld().getEntitiesByType(eDesc.directType, eDesc.filteringPredicate);
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Value retval = ListValue.wrap(entityList.stream().map(EntityValue::new).collect(Collectors.toList()));
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return (_c, _t ) -> retval;
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});
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expression.addLazyFunction("entity_area", -1, (c, t, lv) ->
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{
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if (lv.size()<3) throw new InternalExpressionException("'entity_area' requires entity type, center and range arguments");
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String who = lv.get(0).evalValue(c).getString();
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CarpetContext cc = (CarpetContext)c;
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Vector3Argument centerLocator = Vector3Argument.findIn(cc, lv, 1);
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Vec3d center = centerLocator.vec;
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if (centerLocator.fromBlock) center.add(0.5, 0.5, 0.5);
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Vector3Argument rangeLocator = Vector3Argument.findIn(cc, lv, centerLocator.offset);
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if (rangeLocator.fromBlock)
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throw new InternalExpressionException("Range of 'entity_area' cannot come from a block argument");
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Vec3d range = rangeLocator.vec;
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Box area = new Box(center, center).expand(range.x, range.y, range.z);
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EntityValue.EntityClassDescriptor eDesc = EntityValue.getEntityDescriptor(who);
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List<? extends Entity> entityList = ((CarpetContext)c).s.getWorld().getEntitiesByType(eDesc.directType, area,eDesc.filteringPredicate);
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Value retval = ListValue.wrap(entityList.stream().map(EntityValue::new).collect(Collectors.toList()));
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return (_c, _t ) -> retval;
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});
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expression.addLazyFunction("entity_selector", -1, (c, t, lv) ->
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{
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String selector = lv.get(0).evalValue(c).getString();
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List<Value> retlist = new ArrayList<>();
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for (Entity e: EntityValue.getEntitiesFromSelector(((CarpetContext)c).s, selector))
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{
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retlist.add(new EntityValue(e));
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}
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return (c_, t_) -> ListValue.wrap(retlist);
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});
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expression.addLazyFunction("query", -1, (c, t, lv) ->
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{
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if (lv.size()<2)
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{
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throw new InternalExpressionException("'query' takes entity as a first argument, and queried feature as a second");
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}
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Value v = lv.get(0).evalValue(c);
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if (!(v instanceof EntityValue))
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throw new InternalExpressionException("First argument to query should be an entity");
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String what = lv.get(1).evalValue(c).getString();
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Value retval;
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if (lv.size()==2)
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retval = ((EntityValue) v).get(what, null);
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else if (lv.size()==3)
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retval = ((EntityValue) v).get(what, lv.get(2).evalValue(c));
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else
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retval = ((EntityValue) v).get(what, ListValue.wrap(lv.subList(2, lv.size()).stream().map((vv) -> vv.evalValue(c)).collect(Collectors.toList())));
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return (cc, tt) -> retval;
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});
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// or update
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expression.addLazyFunction("modify", -1, (c, t, lv) ->
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{
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if (lv.size()<2)
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{
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throw new InternalExpressionException("'modify' takes entity as a first argument, and queried feature as a second");
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}
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Value v = lv.get(0).evalValue(c);
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if (!(v instanceof EntityValue))
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throw new InternalExpressionException("First argument to modify should be an entity");
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String what = lv.get(1).evalValue(c).getString();
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if (lv.size()==2)
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((EntityValue) v).set(what, null);
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else if (lv.size()==3)
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((EntityValue) v).set(what, lv.get(2).evalValue(c));
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else
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((EntityValue) v).set(what, ListValue.wrap(lv.subList(2, lv.size()).stream().map((vv) -> vv.evalValue(c)).collect(Collectors.toList())));
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return (cc, tt) -> v;
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});
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expression.addFunction("entity_types", (lv) ->
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{
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if (lv.size() > 1) throw new InternalExpressionException("'entity_types' requires one or no arguments");
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String desc = (lv.size() == 1)?lv.get(0).getString():"*";
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return EntityValue.getEntityDescriptor(desc).listValue;
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});
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expression.addLazyFunction("entity_load_handler", -1, (c, t, lv) ->
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{
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if (c.host.isPerUser()) throw new InternalExpressionException("'entity_load_handler' can only be called in apps with global scope");
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if (lv.size() < 2) throw new InternalExpressionException("'entity_load_handler' required the entity type, and a function to call");
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Value entityValue = lv.get(0).evalValue(c);
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List<String> descriptors = (entityValue instanceof ListValue)
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? ((ListValue) entityValue).getItems().stream().map(Value::getString).collect(Collectors.toList())
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: Collections.singletonList(entityValue.getString());
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Set<EntityType<? extends Entity>> types = new HashSet<>();
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descriptors.forEach(s -> types.addAll(EntityValue.getEntityDescriptor(s).typeList));
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FunctionArgument<LazyValue> funArg = FunctionArgument.findIn(c, expression.module, lv, 1, true, false);
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CarpetEventServer events = ((CarpetScriptHost)c.host).getScriptServer().events;
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if (funArg.function == null)
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{
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types.forEach(et -> events.removeBuiltInEvent(CarpetEventServer.Event.getEntityLoadEventName(et), (CarpetScriptHost) c.host));
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}
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else
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{
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types.forEach(et -> events.addBuiltInEvent(CarpetEventServer.Event.getEntityLoadEventName(et), c.host, funArg.function, FunctionValue.resolveArgs(funArg.args, c, t)));
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}
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Value ret = new NumericValue(types.size());
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return (cc, tt) -> ret;
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});
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// or update
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expression.addLazyFunction("entity_event", -1, (c, t, lv) ->
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{
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if (lv.size()<3)
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throw new InternalExpressionException("'entity_event' requires at least 3 arguments, entity, event to be handled, and function name, with optional arguments");
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Value v = lv.get(0).evalValue(c);
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if (!(v instanceof EntityValue))
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throw new InternalExpressionException("First argument to entity_event should be an entity");
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String what = lv.get(1).evalValue(c).getString();
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FunctionArgument<LazyValue> funArg = FunctionArgument.findIn(c, expression.module, lv, 2, true, false);
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((EntityValue) v).setEvent((CarpetContext)c, what, funArg.function, FunctionValue.resolveArgs(funArg.args, c, t));
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return LazyValue.NULL;
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});
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}
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}
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