adds jokers 6-16. Extract hand type detection logic from hand_get_type to be used by jokers as well

source/hand_analysis.c

@@ -0,0 +1,83 @@
+#include "hand_analysis.h"
+#include "card.h"
+#include "game.h"
+
+static void get_distribution(CardObject **cards, int top, u8 *ranks_out, u8 *suits_out) {
+    for (int i = 0; i < NUM_RANKS; i++) ranks_out[i] = 0;
+    for (int i = 0; i < NUM_SUITS; i++) suits_out[i] = 0;
+
+    for (int i = 0; i <= top; i++) {
+        if (cards[i] && card_object_is_selected(cards[i])) {
+            ranks_out[cards[i]->card->rank]++;
+            suits_out[cards[i]->card->suit]++;
+        }
+    }
+}
+
+void get_hand_distribution(u8 *ranks_out, u8 *suits_out) {
+    get_distribution(get_hand_array(), get_hand_top(), ranks_out, suits_out);
+}
+
+void get_played_distribution(u8 *ranks_out, u8 *suits_out) {
+    get_distribution(get_played_array(), get_played_top(), ranks_out, suits_out);
+}
+
+// Returns the highest N of a kind. So a full-house would return 3.
+u8 hand_contains_n_of_a_kind(u8 *ranks) {
+    u8 highest_n = 0;
+    for (int i = 0; i < NUM_RANKS; i++) {
+        if (ranks[i] > highest_n)
+            highest_n = ranks[i];
+    }
+    return highest_n;
+}
+
+bool hand_contains_two_pair(u8 *ranks) {
+    bool contains_other_pair = false;
+    for (int i = 0; i < NUM_RANKS; i++) {
+        if (ranks[i] >= 2) {
+            if (contains_other_pair)
+                return true;
+            contains_other_pair = true;
+        }
+    }
+    return false;
+}
+
+bool hand_contains_full_house(u8 *ranks) {
+    bool contains_pair = false;
+    bool contains_three = false;
+    for (int i = 0; i < NUM_RANKS; i++) {
+        if (ranks[i] == 2) {
+            contains_pair = true;
+        }
+        if (ranks[i] == 3) {
+            contains_three = true;
+        }
+    }
+    return contains_pair && contains_three;
+}
+
+bool hand_contains_straight(u8 *ranks) {
+    for (int i = 0; i < NUM_RANKS - 4; i++)
+    {
+        if (ranks[i] && ranks[i + 1] && ranks[i + 2] && ranks[i + 3] && ranks[i + 4])
+            return true;
+    }
+    // Check for ace low straight
+    if (ranks[ACE] && ranks[TWO] && ranks[THREE] && ranks[FOUR] && ranks[FIVE])
+        return true;
+
+    return false;
+}
+
+bool hand_contains_flush(u8 *suits) {
+    for (int i = 0; i < NUM_SUITS; i++)
+    {
+        if (suits[i] >= MAX_SELECTION_SIZE) // this allows MAX_SELECTION_SIZE - 1 for four fingers joker
+        {
+            return true;
+        }
+    }
+    return false;
+}