actorwithbody splitted in favour of new particle type

Former-commit-id: 121bd069d0a9eeef60f5ecb085a11a93c4b4a84d
Former-commit-id: 539b4b6916e808c01298190cf347e928f61fe62e

src/net/torvald/terrarum/gameactors/ParticleTestRain.kt

@@ -0,0 +1,24 @@
+package net.torvald.terrarum.gameactors
+
+import org.dyn4j.geometry.Vector2
+import org.newdawn.slick.Image
+
+/**
+ * Created by SKYHi14 on 2017-01-20.
+ */
+class ParticleTestRain(posX: Double, posY: Double) : ParticleBase(ActorOrder.BEHIND, 6000) {
+
+    init {
+        image = Image("./assets/graphics/weathers/raindrop.tga")
+        val w = image.width.toDouble()
+        val h = image.height.toDouble()
+        hitbox.setFromWidthHeight(
+                posX - w.times(0.5),
+                posY - h.times(0.5),
+                w, h
+        )
+
+        velocity.y = 16.0
+    }
+
+}