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--- notes:discrete:fall2023:projects:cgf0 [2023/10/02 22:56] – [SUITES] dwhite26
+++ notes:discrete:fall2023:projects:cgf0 [2023/10/05 02:09] (current) – [SUITES] cfoster8
@@ Line 5: / Line 5: @@
 ====VALUES====
-A standard deck of playing cards has 52 cards from each of the four suits. There are 13 cards in each suit: Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, and King.
+A standard deck of playing cards has 52 cards from each of the four suits.
+There are 13 cards in each suit: Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen, and King, from lowest to highest value, and then it loops around.
 ====SUITES====
-The four suits in a standard deck include hearts, diamonds, spades, and clubs.
+The four suits in a standard deck include hearts, diamonds, spades, and clubs. Spades and clubs are black colored cards, and hearts and diamonds are red. These make up the sub-classes of card types, beyond just their face value.
 ===Structure For Doubly Linked List===
@@ Line 17: / Line 18: @@
 {
     bool Active;
-    int Rcard;         // Card id to call for displaying
+    int cardID;         // Card id to call for displaying
     cardnode* next;    // Pointer to the next card node
     cardnode* prev;    // Pointer to the previous card node
@@ Line 24: / Line 25: @@
 We originally had just a pointer next for a single linked list but now we have added a pointer for prev.
+===Creating a Doubly-linked List===
+To create our doubly-linked list, we'll undergo a similar process to how we handled our singly-linked list in ttb1. First, we create the first node in our list, then we append onto it.
+Creating the first node of the doubly-linked list is almost identical to our previous projects. The only change is that we need to set ''current->prev'' (our pointer to the currently selected node on the list) to ''NULL''. Since this is the first node in our list, ''current->prev'' will always be equal to ''NULL''.
+Adding additional nodes is where it gets more complicated. Before allocating the memory for the next node and moving the current pointer, we'll need to create a temporary pointer (called ''temp'' in these examples). This will be used to link up ''current->prev'' once we move past the first node. With ''temp'' created, the general order you'll want to follow is:
+  - Set temp equal to the current pointer
+  - Allocate the structure memory into ''current->next''.
+  - Move the current pointer to the next node.
+  - Use ''temp'' to link back up to ''current->prev''.
+  - Set ''current->next'' to ''NULL''.
+  - Free the memory of ''temp''.
+To create additional nodes, just repeat these steps.
 ===Setting Up Buttons===
@@ Line 51: / Line 67: @@
 </code>
 If button "a" is clicked then the next card in the deck is displayed.
+Alternatively, you can use the arrow keys to do the same thing, reading XDirection or YDirection respectively in place of "a" or "b".
 ==Randomizing Your Deck==

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