feat: sound projection

common/src/main/kotlin/quaedam/Quaedam.kt

@@ -12,6 +12,7 @@ import org.slf4j.LoggerFactory
 import quaedam.projection.ProjectionCommand
 import quaedam.projection.ProjectionEffectType
 import quaedam.projection.SkylightProjection
+import quaedam.projection.SoundProjection
 import quaedam.projection.swarm.SwarmProjection
 import quaedam.projector.Projector
 
@@ -42,6 +43,7 @@ object Quaedam {
         ProjectionEffectType
         SkylightProjection
         SwarmProjection
+        SoundProjection
         ProjectionCommand
 
         creativeModeTabs.register()

common/src/main/kotlin/quaedam/projection/SoundProjection.kt

@@ -0,0 +1,52 @@
+package quaedam.projection
+
+import net.minecraft.core.BlockPos
+import net.minecraft.nbt.CompoundTag
+import net.minecraft.server.level.ServerLevel
+import net.minecraft.world.item.BlockItem
+import net.minecraft.world.item.Item
+import net.minecraft.world.level.block.state.BlockState
+import quaedam.Quaedam
+
+object SoundProjection {
+
+    const val ID = "sound_projection"
+    const val SHORT_ID = "sound"
+
+    val block = Quaedam.blocks.register(ID) { SoundProjectionBlock }!!
+
+    val item = Quaedam.items.register(ID) {
+        BlockItem(
+            SoundProjectionBlock, Item.Properties()
+                .`arch$tab`(Quaedam.creativeModeTab)
+        )
+    }!!
+
+    val effect = Quaedam.projectionEffects.register(SHORT_ID) {
+        ProjectionEffectType { SoundProjectionEffect }
+    }!!
+
+}
+
+object SoundProjectionBlock : ProjectionBlock<SoundProjectionEffect>(createProperties().lightLevel { 3 }) {
+
+    override fun createProjectionEffect(
+        level: ServerLevel,
+        state: BlockState,
+        pos: BlockPos
+    ) = SoundProjectionEffect
+
+}
+
+object SoundProjectionEffect : ProjectionEffect() {
+
+    override val type
+        get() = SoundProjection.effect.get()!!
+
+    override fun toNbt(tag: CompoundTag) {
+    }
+
+    override fun fromNbt(tag: CompoundTag) {
+    }
+
+}

common/src/main/kotlin/quaedam/projection/swarm/ProjectedPersonEntity.kt

@@ -25,6 +25,7 @@ import net.minecraft.world.entity.npc.InventoryCarrier
 import net.minecraft.world.level.Level
 import net.minecraft.world.level.ServerLevelAccessor
 import quaedam.Quaedam
+import quaedam.projection.SoundProjection
 import quaedam.projection.swarm.ai.ProjectedPersonAI
 import quaedam.projection.swarm.ai.ProjectedPersonNavigation
 import quaedam.projector.Projector
@@ -228,4 +229,8 @@ class ProjectedPersonEntity(entityType: EntityType<out PathfinderMob>, level: Le
         inventory.removeAllItems().forEach(::spawnAtLocation)
     }
 
+    override fun isSilent() =
+        super.isSilent()
+                && Projector.findNearbyProjections(level(), blockPosition(), SoundProjection.effect.get()).isNotEmpty()
+
 }