Kate Blake / Mbed 2 deprecated Snake-game-fall2020-kateblake

project for 2035

Dependencies:   mbed wave_player 4DGL-uLCD-SE MMA8452

Diff: map.cpp

Revision:
4:b687219ae447
Parent:
2:4947d6a82971
Child:
5:cd2bdbfedd21
diff -r 9dde875cd65c -r b687219ae447 map.cpp
--- a/map.cpp	Tue Nov 24 08:35:47 2020 +0000
+++ b/map.cpp	Tue Nov 24 10:26:05 2020 +0000
@@ -33,7 +33,8 @@
  * This function should uniquely map (x,y) onto the space of unsigned integers.
  */
 static unsigned XY_KEY(int X, int Y) {
-     // TODO: Fix me!
+     //implement pairing function for unique number
+     return .5(X+Y)(X+Y+1)+Y; 
 }
 
 /**
@@ -43,14 +44,16 @@
  */
 unsigned map_hash(unsigned key)
 {
-    // TODO: Fix me!
+    return key%5;
 }
 
 void maps_init()
-{
-    // TODO: Implement!    
+{  
     // Initialize hash table
+    items = createHashTable(map_hash, 5);
     // Set width & height
+    w = 50;
+    h = 50;
 }
 
 Map* get_active_map()