equip item by body parts

Former-commit-id: 34294de21d16c03da98427edae3b3c6ed94088aa
Former-commit-id: b37fe27635b1643e72e8f714bfea6ce214006931

src/net/torvald/terrarum/gameitem/DynamicItem.kt

@@ -12,7 +12,8 @@ import org.newdawn.slick.GameContainer
  *
  * Created by minjaesong on 16-09-08.
  */
-open class DynamicItem(val baseItemID: Int, val newMass: Double? = null, val newScale: Double? = null) : InventoryItem {
+open class DynamicItem(val baseItemID: Int?, newMass: Double? = null, newScale: Double? = null)
+    : InventoryItemAdapter() {
 
     /**
      * Internal ID of an Item, Long
@@ -23,6 +24,13 @@ open class DynamicItem(val baseItemID: Int, val newMass: Double? = null, val new
      */
     override val itemID: Int = generateUniqueDynamicItemID()
 
+    override val equipPosition: Int = // default to HAND_GRIP if no baseItemID given
+            if (baseItemID != null)
+                ItemPropCodex.getProp(baseItemID).equipPosition
+            else
+                EquipPosition.HAND_GRIP
+
+
     private fun generateUniqueDynamicItemID(): Int {
         var ret: Int
         do {
@@ -55,38 +63,18 @@ open class DynamicItem(val baseItemID: Int, val newMass: Double? = null, val new
 
     init {
         // set mass to the value from item codex using baseItemID
-        // if you forget this, the game will throw NullPointerException!
-        if (newMass != null) mass = newMass
-        if (newScale != null) scale = newScale
+        if (baseItemID == null) {
+            mass = newMass!!
+        }
+        else {
+            mass = newMass ?: ItemPropCodex.getProp(baseItemID).mass
+        }
+
+        if (baseItemID == null) {
+            scale = newScale!!
+        }
+        else {
+            scale = newScale ?: ItemPropCodex.getProp(baseItemID).scale
+        }
     }
-
-    /**
-     * Effects applied continuously while in pocket
-     */
-    override fun effectWhileInPocket(gc: GameContainer, delta: Int) { }
-
-    /**
-     * Effects applied immediately only once if picked up
-     */
-    override fun effectWhenPickedUp(gc: GameContainer, delta: Int) { }
-
-    /**
-     * Effects applied (continuously or not) while primary button (usually left mouse button) is down
-     */
-    override fun primaryUse(gc: GameContainer, delta: Int) { }
-
-    /**
-     * Effects applied (continuously or not) while secondary button (usually right mouse button) is down
-     */
-    override fun secondaryUse(gc: GameContainer, delta: Int) { }
-
-    /**
-     * Effects applied immediately only once if thrown from pocket
-     */
-    override fun effectWhenThrown(gc: GameContainer, delta: Int) { }
-
-    /**
-     * Effects applied (continuously or not) while thrown to the world
-     */
-    override fun effectWhenTakenOut(gc: GameContainer, delta: Int) { }
 }

src/net/torvald/terrarum/gameitem/InventoryItem.kt

@@ -15,6 +15,11 @@ interface InventoryItem {
      */
     val itemID: Int
 
+    /**
+     * Where to equip the item
+     */
+    val equipPosition: Int
+
     /**
      * Base mass of the item. Real mass must be calculated from
      *      mass * scale^3
@@ -55,7 +60,39 @@ interface InventoryItem {
     fun effectWhenThrown(gc: GameContainer, delta: Int)
 
     /**
-     * Effects applied (continuously or not) while thrown to the world
+     * Effects applied (continuously or not) when equipped
      */
-    fun effectWhenTakenOut(gc: GameContainer, delta: Int)
+    fun effectWhenEquipped(gc: GameContainer, delta: Int)
+
+    /**
+     * Effects applied only once when unequipped
+     */
+    fun effectWhenUnEquipped(gc: GameContainer, delta: Int)
+}
+
+object EquipPosition {
+    const val NULL = -1
+
+    const val ARMOUR = 0
+    // you can add alias to address something like LEGGINGS, BREASTPLATE, RINGS, NECKLACES, etc.
+    const val BODY_BACK = 1 // wings, jetpacks, etc.
+    const val BODY_BUFF2 = 2
+    const val BODY_BUFF3 = 3
+    const val BODY_BUFF4 = 4
+    const val BODY_BUFF5 = 5
+    const val BODY_BUFF6 = 6
+    const val BODY_BUFF7 = 7
+    const val BODY_BUFF8 = 8
+
+    const val HAND_GRIP = 9
+    const val HAND_GAUNTLET = 10
+    const val HAND_BUFF2 = 11
+    const val HAND_BUFF3 = 12
+    const val HAND_BUFF4 = 13
+
+    const val FOOTWEAR = 14
+
+    const val HEADGEAR = 15
+
+    const val INDEX_MAX = 15
 }

src/net/torvald/terrarum/gameitem/InventoryItemAdapter.kt

@@ -7,6 +7,7 @@ import org.newdawn.slick.GameContainer
  */
 abstract class InventoryItemAdapter : InventoryItem {
     override abstract val itemID: Int
+    override abstract val equipPosition: Int
     override abstract var mass: Double
     override abstract var scale: Double
 
@@ -25,6 +26,9 @@ abstract class InventoryItemAdapter : InventoryItem {
     override fun effectWhenThrown(gc: GameContainer, delta: Int) {
     }
 
-    override fun effectWhenTakenOut(gc: GameContainer, delta: Int) {
+    override fun effectWhenEquipped(gc: GameContainer, delta: Int) {
+    }
+
+    override fun effectWhenUnEquipped(gc: GameContainer, delta: Int) {
     }
 }