code cleanup, shortening things

Former-commit-id: d1c81cf3207fff4dd311e9b6c3beb04c194aebc5
Former-commit-id: 26f5042ba41cd577e681a22465435945434c864b

src/net/torvald/terrarum/itemproperties/ItemCodex.kt

@@ -0,0 +1,86 @@
+package net.torvald.terrarum.itemproperties
+
+import net.torvald.point.Point2d
+import net.torvald.terrarum.KVHashMap
+import net.torvald.terrarum.gameactors.CanBeAnItem
+import net.torvald.terrarum.gameitem.InventoryItem
+import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.gameactors.ActorWithBody
+import net.torvald.terrarum.gamecontroller.mouseTileX
+import net.torvald.terrarum.gamecontroller.mouseTileY
+import net.torvald.terrarum.gameitem.EquipPosition
+import net.torvald.terrarum.gameworld.GameWorld
+import net.torvald.terrarum.tileproperties.TileCodex
+import org.newdawn.slick.GameContainer
+import java.util.*
+
+/**
+ * Created by minjaesong on 16-03-15.
+ */
+object ItemCodex {
+
+    /**
+     * <ItemID or RefID for Actor, TheItem>
+     * Will return corresponding Actor if ID >= 16777216
+     */
+    private val itemCodex = HashMap<Int, InventoryItem>()
+    private val dynamicItemDescription = HashMap<Int, KVHashMap>()
+
+    val ITEM_TILE_MAX = GameWorld.TILES_SUPPORTED - 1 // 4095
+    val ITEM_COUNT_MAX = 16777216
+    val ITEM_DYNAMIC_MAX = ITEM_COUNT_MAX - 1
+    val ITEM_STATIC_MAX = 32767
+    val ITEM_DYNAMIC_MIN = ITEM_STATIC_MAX + 1
+    val ITEM_STATIC_MIN = ITEM_TILE_MAX + 1 // 4096
+
+    init {
+        // tile items
+        for (i in 0..ITEM_TILE_MAX) {
+            itemCodex[i] = object : InventoryItem() {
+                override val id: Int = i
+                override val equipPosition = EquipPosition.HAND_GRIP
+                override var mass: Double = TileCodex[i].density / 1000.0
+                override var scale: Double = 1.0 // no need to set setter as scale would not change
+
+                override fun primaryUse(gc: GameContainer, delta: Int) {
+                    // TODO base punch attack
+                }
+
+                override fun secondaryUse(gc: GameContainer, delta: Int) {
+                    val mousePoint = Point2d(gc.mouseTileX.toDouble(), gc.mouseTileY.toDouble())
+                    // linear search filter (check for intersection with tilewise mouse point and tilewise hitbox)
+                    Terrarum.ingame.actorContainer.forEach {
+                        if (it is ActorWithBody && it.tilewiseHitbox.intersects(mousePoint))
+                            return
+                    }
+                    // filter passed, do the job
+                    Terrarum.ingame.world.setTileTerrain(
+                            gc.mouseTileX,
+                            gc.mouseTileY,
+                            i
+                    )
+                }
+            }
+        }
+
+        // read prop in csv and fill itemCodex
+
+        // read from save (if applicable) and fill dynamicItemDescription
+    }
+
+    operator fun get(code: Int): InventoryItem {
+        if (code < ITEM_STATIC_MAX) // generic item
+            return itemCodex[code]!! // from CSV
+        else if (code < ITEM_DYNAMIC_MAX) {
+            TODO("read from dynamicitem description (JSON)")
+        }
+        else {
+            val a = Terrarum.ingame.getActorByID(code) // actor item
+            if (a is CanBeAnItem) return a.itemData
+
+            throw IllegalArgumentException("Attempted to get item data of actor that cannot be an item. ($a)")
+        }
+    }
+
+    fun hasItem(itemID: Int): Boolean = dynamicItemDescription.containsKey(itemID)
+}