Plasma projectiles tests and fixes

src/main/kotlin/ru/dbotthepony/mc/otm/client/render/entity/PlasmaProjectileRenderer.kt

@@ -28,8 +28,10 @@ class PlasmaProjectileRenderer(context: EntityRendererProvider.Context) : Entity
 	) {
 		super.render(entity, p_114486_, p_114487_, pose, buffer, p_114490_)
 
-		pose.scale(0.1f, 0.1f, 0.1f)
-		pose.rotateAroundPoint(pose.translation(), Angle(roll = entity.xRot.toDouble(), yaw = entity.yRot.toDouble(), pitch = PI))
+		pose.pushPose()
+		pose.scale(0.03f, 0.03f, 0.03f)
+		pose.rotateAroundPoint(pose.translation(), Angle.deg(roll = entity.xRot.toDouble(), yaw = entity.yRot.toDouble(), pitch = 180.0))
 		font.drawAligned(pose, "PLASMA", TextAlign.CENTER_CENTER, 0f, 0f, 0xFFFFFF)
+		pose.popPose()
 	}
 }

src/main/kotlin/ru/dbotthepony/mc/otm/core/EuclidMath.kt

@@ -240,7 +240,7 @@ data class Angle(override val pitch: Double = 0.0, override val yaw: Double = 0.
 		const val PI_HALF = Math.PI / 2.0
 
 		fun deg(pitch: Double, yaw: Double, roll: Double): Angle {
-			return Angle(Math.toDegrees(pitch), Math.toDegrees(yaw), Math.toDegrees(roll))
+			return Angle(Math.toRadians(pitch), Math.toRadians(yaw), Math.toRadians(roll))
 		}
 
 		@JvmField val ZERO = Angle()
@@ -256,7 +256,7 @@ data class Angle(override val pitch: Double = 0.0, override val yaw: Double = 0.
 data class MutableAngle(override var pitch: Double = 0.0, override var yaw: Double = 0.0, override var roll: Double = 0.0) : IAngle {
 	companion object {
 		fun deg(pitch: Double, yaw: Double, roll: Double): MutableAngle {
-			return MutableAngle(Math.toDegrees(pitch), Math.toDegrees(yaw), Math.toDegrees(roll))
+			return MutableAngle(Math.toRadians(pitch), Math.toRadians(yaw), Math.toRadians(roll))
 		}
 	}
 }

src/main/kotlin/ru/dbotthepony/mc/otm/entity/PlasmaProjectile.kt

@@ -21,10 +21,6 @@ class PlasmaProjectile(level: Level) : Projectile(MEntityTypes.PLASMA as EntityT
 	var damage = 6.0f
 	var ttl = 200
 
-	init {
-		deltaMovement = Vector(1.0, 0.0, 0.0)
-	}
-
 	override fun defineSynchedData() {
 
 	}

src/main/kotlin/ru/dbotthepony/mc/otm/item/weapon/PlasmaRifleItem.kt

@@ -1,13 +1,125 @@
 package ru.dbotthepony.mc.otm.item.weapon
 
+import net.minecraft.util.Mth
+import net.minecraft.world.entity.Entity
 import net.minecraft.world.entity.player.Player
 import net.minecraft.world.entity.projectile.Arrow
 import net.minecraft.world.item.ItemStack
+import net.minecraft.world.phys.Vec3
 import ru.dbotthepony.kvector.vector.Angle3f
 import ru.dbotthepony.kvector.vector.ndouble.Vector3d
 import ru.dbotthepony.mc.otm.core.ImpreciseFraction
+import ru.dbotthepony.mc.otm.core.plus
+import ru.dbotthepony.mc.otm.core.times
 import ru.dbotthepony.mc.otm.entity.PlasmaProjectile
 import ru.dbotthepony.mc.otm.position
+import java.util.*
+import kotlin.math.PI
+import kotlin.math.cos
+import kotlin.math.sin
+
+private val random = Random()
+private const val DEGS = PI / 180.0
+
+class VelocityCalculation(
+	xRot: Double,
+	yRot: Double,
+	zRot: Double = 0.0,
+	force: Double,
+	deviation: Double = 0.0,
+	owner: Entity? = null,
+) {
+	constructor(
+		xRot: Float,
+		yRot: Float,
+		zRot: Float = 0f,
+		force: Double,
+		deviation: Double = 0.0,
+		owner: Entity? = null,
+	) : this(xRot.toDouble(), yRot.toDouble(), zRot.toDouble(), force, deviation, owner)
+
+	constructor(
+		xRot: Float,
+		yRot: Float,
+		zRot: Float = 0f,
+		force: Float,
+		deviation: Double = 0.0,
+		owner: Entity? = null,
+	) : this(xRot.toDouble(), yRot.toDouble(), zRot.toDouble(), force.toDouble(), deviation, owner)
+
+	constructor(
+		xRot: Float,
+		yRot: Float,
+		zRot: Float = 0f,
+		force: Float,
+		deviation: Float,
+		owner: Entity? = null,
+	) : this(xRot.toDouble(), yRot.toDouble(), zRot.toDouble(), force.toDouble(), deviation.toDouble(), owner)
+
+	constructor(
+		owner: Entity,
+		force: Float,
+		deviation: Float,
+	) : this(owner.xRot.toDouble() - 4.5 * (1 / force), owner.yRot.toDouble(), 0.0, force.toDouble(), deviation.toDouble(), owner)
+
+	constructor(
+		owner: Entity,
+		force: Double,
+		deviation: Float,
+	) : this(owner.xRot.toDouble() - 4.5 * (1 / force), owner.yRot.toDouble(), 0.0, force, deviation.toDouble(), owner)
+
+	constructor(
+		owner: Entity,
+		force: Double,
+		deviation: Double,
+	) : this(owner.xRot.toDouble() - 4.5 * (1 / force), owner.yRot.toDouble(), 0.0, force, deviation, owner)
+
+	val xVelocity = -sin(yRot * DEGS) * cos(xRot * (PI / 180.0))
+	val yVelocity = -sin((xRot + zRot) * DEGS)
+	val zVelocity = cos(yRot * DEGS) * cos(xRot * DEGS)
+
+	val velocity: Vec3
+
+	init {
+		var velocity = Vec3(
+			xVelocity,
+			yVelocity,
+			zVelocity
+		).normalize()
+
+		velocity += Vec3(
+			random.nextGaussian() * 0.0075 * deviation,
+			random.nextGaussian() * 0.0075 * deviation,
+			random.nextGaussian() * 0.0075 * deviation,
+		)
+
+		velocity *= force
+
+		if (owner != null) {
+			val ownerVel = owner.deltaMovement
+
+			if (owner.isOnGround) {
+				velocity += ownerVel
+			} else {
+				velocity += Vec3(ownerVel.x, 0.0, ownerVel.z)
+			}
+		}
+
+		this.velocity = velocity
+	}
+
+	val yRotation = Mth.atan2(velocity.x, velocity.z).toFloat() * (180f / Math.PI.toFloat())
+	val xRotation = Mth.atan2(velocity.y, velocity.horizontalDistance()).toFloat() * (180f / Math.PI.toFloat())
+
+	fun load(onto: Entity, withRotation: Boolean = true) {
+		if (withRotation) {
+			onto.xRot = xRotation
+			onto.yRot = yRotation
+		}
+
+		onto.deltaMovement = velocity
+	}
+}
 
 class PlasmaRifleItem : PlasmaWeaponItem<WeaponDataTable>(WeaponDataTable::class, ImpreciseFraction(200_000)) {
 	override val roundsPerMinute: Int = 400
@@ -22,18 +134,13 @@ class PlasmaRifleItem : PlasmaWeaponItem<WeaponDataTable>(WeaponDataTable::class
 		get() = Angle3f(-0.02f,0f,0f)
 
 	override fun primaryFire(itemStack: ItemStack, player: Player, dt: WeaponDataTable): Boolean {
-		println("FIER! ${Thread.currentThread()}")
-
 		if (!player.level.isClientSide) {
-			//val arrow = Arrow(player.level, player)
-			//arrow.shootFromRotation(player, player.xRot, player.yRot, 0f, 2f, 0f)
-			//player.level.addFreshEntity(arrow)
-
 			val arrow = PlasmaProjectile(player.level)
 			arrow.position = player.eyePosition
-			arrow.xRot = player.xRot
-			arrow.yRot = player.yRot
-			//arrow.deltaMovement = arrow.rotationVector
+
+			val calc = VelocityCalculation(player, force = 4.0, deviation = 0.3)
+			calc.load(arrow)
+
 			player.level.addFreshEntity(arrow)
 		}
 

src/main/kotlin/ru/dbotthepony/mc/otm/registry/MEntityTypes.kt

@@ -17,7 +17,7 @@ object MEntityTypes {
 	private val registry: DeferredRegister<EntityType<*>> = DeferredRegister.create(ForgeRegistries.ENTITIES, OverdriveThatMatters.MOD_ID)
 
 	val PLASMA: EntityType<*> by registry.register(MNames.PLASMA) {
-		EntityType.Builder.of<PlasmaProjectile>({ _, level -> PlasmaProjectile(level) }, MobCategory.MISC).build(MNames.PLASMA)
+		EntityType.Builder.of<PlasmaProjectile>({ _, level -> PlasmaProjectile(level) }, MobCategory.MISC).sized(0.4f, 0.4f).build(MNames.PLASMA)
 	}
 
 	internal fun register() {