particles: note

src/main/java/de/bixilon/minosoft/data/entities/block/NoteBlockBlockEntity.kt

@@ -15,15 +15,24 @@ package de.bixilon.minosoft.data.entities.block
 
 import de.bixilon.minosoft.data.mappings.MultiResourceLocationAble
 import de.bixilon.minosoft.data.mappings.ResourceLocation
+import de.bixilon.minosoft.data.mappings.blocks.BlockState
+import de.bixilon.minosoft.data.mappings.blocks.properties.BlockProperties
 import de.bixilon.minosoft.data.mappings.blocks.properties.Instruments
+import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.NoteParticle
+import de.bixilon.minosoft.gui.rendering.util.VecUtil.toVec3d
 import de.bixilon.minosoft.protocol.network.connection.PlayConnection
 import de.bixilon.minosoft.util.KUtil.asResourceLocation
+import de.bixilon.minosoft.util.KUtil.nullCast
+import glm_.vec3.Vec3d
+import glm_.vec3.Vec3i
 
 class NoteBlockBlockEntity(connection: PlayConnection) : BlockEntity(connection), BlockActionEntity {
+    private val noteParticleType = connection.registries.particleTypeRegistry[NoteParticle]
     var instrument: Instruments? = null
         private set
     var pitch: Int? = null
         private set
+    private var showParticleNextTick = false
 
     override fun setBlockActionData(data1: Byte, data2: Byte) {
         instrument = when (data1.toInt()) {
@@ -36,6 +45,22 @@ class NoteBlockBlockEntity(connection: PlayConnection) : BlockEntity(connection)
         }
 
         pitch = data2.toInt()
+
+        showParticleNextTick = true
+        // ToDo: Play sound?
+    }
+
+    override fun realTick(connection: PlayConnection, blockState: BlockState, blockPosition: Vec3i) {
+        super.realTick(connection, blockState, blockPosition)
+        if (!showParticleNextTick) {
+            return
+        }
+        showParticleNextTick = false
+
+
+        noteParticleType?.let {
+            connection.world += NoteParticle(connection, blockPosition.toVec3d + Vec3d(0.5, 1.2, 0.5), (blockState.properties[BlockProperties.NOTE]?.nullCast<Number>()?.toInt() ?: 0) / 24.0f, it.default())
+        }
     }
 
     companion object : BlockEntityFactory<NoteBlockBlockEntity>, MultiResourceLocationAble {

src/main/java/de/bixilon/minosoft/gui/rendering/particle/DefaultParticleFactory.kt

@@ -18,6 +18,7 @@ import de.bixilon.minosoft.gui.rendering.particle.types.Particle
 import de.bixilon.minosoft.gui.rendering.particle.types.norender.ExplosionEmitterParticle
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.advanced.block.BlockDustParticle
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.ExplosionParticle
+import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.NoteParticle
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.campfire.CampfireSmokeParticle
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.cloud.CloudParticle
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.cloud.SneezeParticle
@@ -70,4 +71,5 @@ object DefaultParticleFactory : DefaultFactory<ParticleFactory<out Particle>>(
     CritParticle,
     CrimsonSporeParticle,
     WarpedSporeParticle,
+    NoteParticle,
 )

src/main/java/de/bixilon/minosoft/gui/rendering/particle/types/render/texture/simple/NoteParticle.kt

@@ -0,0 +1,60 @@
+/*
+ * Minosoft
+ * Copyright (C) 2021 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple
+
+import de.bixilon.minosoft.data.mappings.ResourceLocation
+import de.bixilon.minosoft.data.mappings.particle.data.ParticleData
+import de.bixilon.minosoft.data.text.RGBColor
+import de.bixilon.minosoft.gui.rendering.particle.ParticleFactory
+import de.bixilon.minosoft.gui.rendering.util.VecUtil.EMPTY
+import de.bixilon.minosoft.protocol.network.connection.PlayConnection
+import de.bixilon.minosoft.util.KUtil.asResourceLocation
+import glm_.glm
+import glm_.vec3.Vec3d
+import kotlin.math.max
+import kotlin.math.sin
+
+class NoteParticle(connection: PlayConnection, position: Vec3d, colorModifier: Float, data: ParticleData? = null) : SimpleTextureParticle(connection, position, Vec3d.EMPTY, data) {
+
+    init {
+        this.friction = 0.66f
+        this.velocity *= 0.009999999776482582
+        accelerateIfYBlocked = true
+        this.velocity.y += 0.2
+
+        fun getColor(offset: Float): Float {
+            return max(0.0f, sin((colorModifier + offset) * 2 * glm.PIf) * 0.65f + 0.35f)
+        }
+
+        this.color = RGBColor(
+            red = getColor(0.0f),
+            green = getColor(ONE_THIRD),
+            blue = getColor(TWO_THIRD),
+        )
+
+        this.scale *= 1.5f
+        this.maxAge = 6
+    }
+
+
+    companion object : ParticleFactory<NoteParticle> {
+        override val RESOURCE_LOCATION: ResourceLocation = "minecraft:note".asResourceLocation()
+        private const val ONE_THIRD = 1.0f / 3
+        private const val TWO_THIRD = ONE_THIRD * 2
+
+        override fun build(connection: PlayConnection, position: Vec3d, velocity: Vec3d, data: ParticleData): NoteParticle {
+            return NoteParticle(connection, position, velocity.x.toFloat(), data)
+        }
+    }
+}