implement dialogue progression and text display for NPC interactions

src/de/miaurizius/jgame2d/core/UI.java

@@ -28,6 +28,8 @@ public class UI {
     public int npcSlotCol, npcSlotRow;
     private int transCount;
     private int sleepCount;
+    private int charIndex;
+    private String combinedText;
 
     // SUB-STATES
     public TradeState tradeState = TradeState.SELECT;
@@ -296,7 +298,16 @@ public class UI {
 
         if(tradingNPC.dialogue[tradingNPC.dialogueSet][tradingNPC.dialogueIndex] != null) {
             currentDialogue = tradingNPC.dialogue[tradingNPC.dialogueSet][tradingNPC.dialogueIndex];
+            char[] characters = tradingNPC.dialogue[tradingNPC.dialogueSet][tradingNPC.dialogueIndex].toCharArray();
+            if(charIndex < characters.length) {
+                String s = String.valueOf(characters[charIndex]);
+                combinedText = combinedText + s;
+                currentDialogue = combinedText;
+                charIndex++;
+            }
             if(panel.keyH.spacePressed) {
+                charIndex = 0;
+                combinedText = "";
                 if(panel.gameState == GameState.DIALOGUE) {
                     tradingNPC.dialogueIndex++;
                     panel.keyH.spacePressed = false;

src/de/miaurizius/jgame2d/entity/npc/OldManNPC.java

@@ -20,6 +20,8 @@ public class OldManNPC extends Entity {
         getImage();
         setDialogue();
 
+        dialogueSet = -1;
+
         solidArea.x = 8;
         solidArea.y = 16;
         solidAreaDefaultX = solidArea.x;
@@ -50,6 +52,8 @@ public class OldManNPC extends Entity {
     public void speak() {
         super.facePlayer();
         super.startDialogue(this,super.dialogueSet);
+        dialogueSet++;
+        if(dialogue[dialogueSet][0] == null) dialogueSet = 0;
         // super.onPath = true;
     }