open NPC dialogue if you collide with it

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

@@ -7,8 +7,9 @@ import java.awt.*;
 public class UI {
 
     GamePanel panel;
-    Graphics graphics2d;
+    Graphics2D graphics2d;
     Font arial_40, arial_80B;
+    public String currentDialogue;
 
     public UI(GamePanel panel) {
         this.panel = panel;
@@ -16,7 +17,7 @@ public class UI {
         arial_80B = new Font("Arial", Font.BOLD, 80);
     }
 
-    public void draw(Graphics graphics2d) {
+    public void draw(Graphics2D graphics2d) {
         this.graphics2d = graphics2d;
         graphics2d.setFont(arial_40);
         graphics2d.setColor(Color.white);
@@ -29,6 +30,9 @@ public class UI {
             case GameState.PAUSE:
                 drawPauseScreen();
                 break;
+            case GameState.DIALOGUE:
+                drawDialogueScreen();
+                break;
         }
     }
 
@@ -39,6 +43,29 @@ public class UI {
         graphics2d.drawString(text, getCenteredX(text), y);
     }
 
+    public void drawDialogueScreen() {
+        // WINDOW
+        int x = panel.tileSize*2;
+        int y = panel.tileSize/2;
+        int width = panel.screenWidth - (panel.tileSize*4);
+        int height = panel.tileSize*4;
+        drawSubWindow(x, y, width, height);
+
+        graphics2d.setFont(graphics2d.getFont().deriveFont(Font.PLAIN, 23));
+        x += panel.tileSize;
+        y += panel.tileSize;
+        graphics2d.drawString(currentDialogue, x, y);
+    }
+
+    public void drawSubWindow(int x, int y, int width, int height) {
+        graphics2d.setColor(new Color(0,0,0,210));
+        graphics2d.fillRoundRect(x, y, width, height, 35, 35);
+        graphics2d.setColor(new Color(255,255,255));
+        graphics2d.setStroke(new BasicStroke(5));
+        graphics2d.drawRoundRect(x+5, y+5, width-10, height-10, 25, 25);
+    }
+
+
     public int getCenteredX(String text) {
         return panel.screenWidth / 2 - (int) graphics2d.getFontMetrics().getStringBounds(text, graphics2d).getWidth() / 2;
     }

src/de/miaurizius/jgame2d/core/enums/GameState.java

@@ -3,6 +3,7 @@ package de.miaurizius.jgame2d.core.enums;
 public enum GameState {
 
     PLAY,
-    PAUSE;
+    PAUSE,
+    DIALOGUE,
 
 }

src/de/miaurizius/jgame2d/core/handlers/KeyHandler.java

@@ -23,6 +23,8 @@ public class KeyHandler implements KeyListener {
     @Override
     public void keyPressed(KeyEvent e) {
         int code = e.getKeyCode();
+        switch(panel.gameState) {
+            case PLAY:
                 switch (code) {
                     // CONTROLS
                     case KeyEvent.VK_W, KeyEvent.VK_UP -> upPressed = true;
@@ -34,10 +36,26 @@ public class KeyHandler implements KeyListener {
                     case KeyEvent.VK_T -> checkDrawTime = !checkDrawTime;
 
                     // GAME STATES
-            case KeyEvent.VK_ESCAPE -> panel.gameState = (panel.gameState == GameState.PAUSE) ? GameState.PLAY : GameState.PAUSE;
+                    case KeyEvent.VK_ESCAPE -> panel.gameState = GameState.PAUSE;
+                }
+                break;
+            case DIALOGUE:
+                switch (code) {
+                    case KeyEvent.VK_SPACE -> panel.gameState = GameState.PLAY;
+                }
+                break;
         }
     }
 
+    /// TODO: setup keybinds that will always work (like pausing the game)
+//    public void alwaysOnKeys(int code) {
+//        // GAME STATES
+//        switch (code) {
+//            case KeyEvent.VK_ESCAPE -> panel.gameState = GameState.PAUSE;
+//        }
+//
+//    }
+
     @Override
     public void keyReleased(KeyEvent e) {
         int code = e.getKeyCode();

src/de/miaurizius/jgame2d/entity/Entity.java

@@ -25,12 +25,15 @@ public class Entity {
     public int solidAreaDefaultX,  solidAreaDefaultY;
     public boolean collisionOn = false;
     public int actionLock = 0;
+    String[] dialogue = new String[20];
+    int dialogueIndex = 0;
 
     public Entity(GamePanel panel) {
         this.panel = panel;
     }
 
     public void setAction() {}
+    public void speak() {}
     public void update() {
         setAction();
         collisionOn = false;

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

@@ -13,6 +13,7 @@ public class OldManNPC extends Entity {
         direction = Direction.DOWN;
         speed = 1;
         getImage();
+        setDialogue();
     }
 
     public void getImage()  {
@@ -26,6 +27,13 @@ public class OldManNPC extends Entity {
         right2 = initEntitySprites("npc/oldman_right_2");
     }
 
+    public void setDialogue() {
+        dialogue[0] = "Hello, lad.";
+        dialogue[1] = "So you've come to this island to find the treasure?";
+        dialogue[2] = "I used to be a great wizard but now... I'm a bit too old for taking an adventure";
+        dialogue[3] = "Well, good luck on you.";
+    }
+
     public void setAction() {
         actionLock++;
         if(actionLock != 120) return; //lock action for x frames
@@ -36,7 +44,19 @@ public class OldManNPC extends Entity {
         if(i > 50 && i <= 75) direction = Direction.LEFT;
         if(i > 75) direction = Direction.RIGHT;
         actionLock = 0;
+    }
 
+    public void speak() {
+        if(dialogue[dialogueIndex] == null) dialogueIndex = 0;
+        panel.ui.currentDialogue = dialogue[dialogueIndex];
+        dialogueIndex++;
+
+        switch(panel.player.direction) {
+            case UP -> direction = Direction.DOWN;
+            case DOWN -> direction = Direction.UP;
+            case LEFT -> direction = Direction.RIGHT;
+            case RIGHT -> direction = Direction.LEFT;
+        }
     }
 
 }

src/de/miaurizius/jgame2d/entity/Player.java

@@ -2,10 +2,10 @@ package de.miaurizius.jgame2d.entity;
 
 import de.miaurizius.jgame2d.core.*;
 import de.miaurizius.jgame2d.core.enums.Direction;
+import de.miaurizius.jgame2d.core.enums.GameState;
 import de.miaurizius.jgame2d.core.handlers.KeyHandler;
 
 import java.awt.*;
-import java.awt.image.BufferedImage;
 
 public class Player extends Entity {
 
@@ -91,12 +91,12 @@ public class Player extends Entity {
 
     public void pickObject(int index) {
         if(index == 999) return;
-
     }
 
     public void interactNPC(int index) {
         if(index == 999) return;
-        System.out.println("npc collision detected");
+        panel.gameState = GameState.DIALOGUE;
+        panel.npc[index].speak();
     }
 
     public void draw(Graphics2D graphics2d) {