more pictogrammes

Former-commit-id: 670df70bbed466e56034dbdd33d7a1da31cd88d7
Former-commit-id: 2b106753155be6080d4651acca1981f10d614421

src/net/torvald/terrarum/ui/UIItem.kt

@@ -1,13 +1,32 @@
 package net.torvald.terrarum.ui
 
+import org.newdawn.slick.GameContainer
+import org.newdawn.slick.Graphics
+
 /**
  * Created by minjaesong on 15-12-31.
  */
-class UIItem {
+interface UIItem {
 
     // X/Y Position relative to the containing canvas
-    internal var posX: Int = 0
-    internal var posY: Int = 0
+    var posX: Int
+    var posY: Int
 
+    fun update(gc: GameContainer, delta: Int)
+    fun render(gc: GameContainer, g: Graphics)
 
+    // keyboard controlled
+    fun keyPressed(key: Int, c: Char)
+    fun keyReleased(key: Int, c: Char)
+
+    // mouse controlled
+    fun mouseMoved(oldx: Int, oldy: Int, newx: Int, newy: Int)
+    fun mouseDragged(oldx: Int, oldy: Int, newx: Int, newy: Int)
+    fun mousePressed(button: Int, x: Int, y: Int)
+    fun mouseReleased(button: Int, x: Int, y: Int)
+    fun mouseWheelMoved(change: Int)
+
+    // gamepad controlled
+    fun controllerButtonPressed(controller: Int, button: Int)
+    fun controllerButtonReleased(controller: Int, button: Int)
 }