weponmeleecore

src/net/torvald/terrarum/modulebasegame/items/WeaponMeleeCore.kt

@@ -0,0 +1,29 @@
+package net.torvald.terrarum.modulebasegame.items
+
+import net.torvald.random.Fudge3
+import net.torvald.random.HQRNG
+import net.torvald.terrarum.itemproperties.GameItem
+import net.torvald.terrarum.modulebasegame.gameactors.ActorHumanoid
+import kotlin.math.pow
+
+/**
+ * Created by minjaesong on 2019-03-17.
+ */
+object WeaponMeleeCore {
+
+    val SQRT2 = Math.sqrt(2.0)
+
+    private val dF3 = Fudge3(HQRNG())
+    private val randomiser = doubleArrayOf(0.94, 0.96, 0.98, 1.0, 1.02, 1.04, 1.06)
+
+    private fun randomise() = dF3.rollForArray(randomiser)
+    private fun getAttackMomentum(weapon: WeaponMeleeBase, actor: ActorHumanoid) =
+            weapon.mass * weapon.material.density * weapon.velocityMod * actor.scale.pow(SQRT2) // TODO multiply racial strength from RaceCodex
+    fun getAttackPower(weapon: WeaponMeleeBase, actor: ActorHumanoid, actee: ActorHumanoid) =
+            getAttackMomentum(weapon, actor) * randomise() * maxOf(1.0, (actee.hitbox.endY - actor.hitbox.startY) / actee.hitbox.height)
+
+}
+
+abstract class WeaponMeleeBase : GameItem() {
+    abstract val velocityMod: Double
+}