From a8281523e2bbee4a1b4688f175896fe9c6b30c55 Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Thu, 28 May 2015 23:50:19 +0200
Subject: This does seem to work a bit... kindof...

---
 Week14 Route 66/src/OO14route66/Regelaar.java | 40 ++++++++++++++++++++++++++-
 1 file changed, 39 insertions(+), 1 deletion(-)

(limited to 'Week14 Route 66/src/OO14route66/Regelaar.java')

diff --git a/Week14 Route 66/src/OO14route66/Regelaar.java b/Week14 Route 66/src/OO14route66/Regelaar.java
index 1fc336f..bf4cbfd 100644
--- a/Week14 Route 66/src/OO14route66/Regelaar.java	
+++ b/Week14 Route 66/src/OO14route66/Regelaar.java	
@@ -6,10 +6,48 @@
 
 package OO14route66;
 
+import java.util.HashMap;
+import java.util.Map;
+
 /**
  *
  * @author pieterkoopman
  */
-class Regelaar {
+public class Regelaar {
+    
+    private static Regelaar instance;
+    
+    Map<Car, Integer> locations;
+    
+    protected Regelaar() {
+        locations = new HashMap<>();
+    }
+    
+    public static Regelaar getInstance() {
+        if (instance == null) {
+            instance = new Regelaar();
+        }
+        return instance;
+    }
+    
+    public synchronized void setLocation(Car car, int location) {
+        if (locations.containsKey(car)) {
+            locations.remove(car);
+        } 
+        locations.put(car, location);
+    }
+    
+    public synchronized boolean isSafeLocation(Car car, int requested_location) {
+        for (Map.Entry<Car, Integer> location : locations.entrySet()) {
+            Car that_car = location.getKey();
+            if (that_car != car && 
+                    that_car.getDirection() == car.getDirection() &&
+                    that_car.getLocation() > requested_location &&
+                    that_car.getLocation() < requested_location + Car.CARLENGTH + Car.MINCARSPACE) {
+                return false;
+            }
+        }
+        return true;
+    }
 
 }
-- 
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