Added new methods of getting players distance

Added a way to get the NPC (dummy) to get to the player if only the player is 10 pixles away.

Author: redomar

src/com/redomar/game/entities/Dummy.java

@@ -1,5 +1,7 @@
 package com.redomar.game.entities;
 
+import java.util.List;
+
 import com.redomar.game.Game;
 import com.redomar.game.entities.efx.Swim;
 import com.redomar.game.gfx.Colours;
@@ -27,8 +29,11 @@ public Dummy(LevelHandler level, String name, int x, int y, int shirtCol,
 
 	public void tick() {
 
-		followMovementAI(getX(), getY(), Game.getPlayer().getX(), Game
-				.getPlayer().getY(), xa, ya, this);
+		List<Player> players = level.getPlayers(this, 10);
+		if (players.size() > 0) {
+			followMovementAI(getX(), getY(), Game.getPlayer().getX(), Game
+					.getPlayer().getY(), xa, ya, this);
+		}
 
 		setSwim(new Swim(level, getX(), getY()));
 		swimType = getSwim().swimming(isSwimming, isMagma, isMuddy);

src/com/redomar/game/level/LevelHandler.java

@@ -11,6 +11,7 @@
 
 import com.redomar.game.Game;
 import com.redomar.game.entities.Entity;
+import com.redomar.game.entities.Player;
 import com.redomar.game.entities.PlayerMP;
 import com.redomar.game.gfx.Screen;
 import com.redomar.game.level.tiles.Tile;
@@ -192,5 +193,36 @@ public void movePlayer(String username, int x, int y, int numSteps,
 		player.setMoving(isMoving);
 		player.setMovingDir(movingDir);
 	}
+	
+	public List<Entity> getEntities(Entity e, int radius){
+		List<Entity> result = new ArrayList<Entity>();
+		int ex = e.getX();
+		int ey = e.getY();
+		for (int i = 0; i < entities.size(); i++) {
+			Entity entity = entities.get(i);
+			int x = entity.getX();
+			int y = entity.getY();
+			
+			int dx = Math.abs(x - ex);
+			int dy = Math.abs(y - ey);
+			
+			double distance = Math.sqrt((dx*2) + (dy*2));
+			if(distance <= radius){
+				result.add(entity);
+			}
+		}
+		return result;
+	}
+	
+	public List<Player> getPlayers(Entity e, int radius){
+		List<Entity> entities = getEntities(e, radius);
+		List<Player> result = new ArrayList<Player>();
+		for (int i = 0; i < entities.size(); i++) {
+			if (entities.get(i) instanceof Player) {
+				result.add((Player) entities.get(i));
+			}
+		}
+		return result;
+	}
 
 }