1 files changed, 33 insertions, 0 deletions
diff --git a/src/table_stacks.c b/src/table_stacks.c
new file mode 100644
index 0000000..9a32977
--- /dev/null
+++ b/src/table_stacks.c
@@ -0,0 +1,33 @@
+#include <stdlib.h>
+#include <assert.h>
+#include "table_stacks.h"
+#include "card_stack.h"
+#include "card.h"
+#include "game.h"
+
+const uint8_t get_stack_idx_for_card(const table_stacks_t* stack_list, const card c)
+{
+	assert(stack_list != NULL);
+
+	uint8_t idx = NUM_TABLE_STACKS;
+	uint8_t old_diff = MAX_CARD;
+
+	for(int i=0; i<NUM_TABLE_STACKS; i++)
+	{
+		card stackcard = card_stack_upper_card(&stack_list->stacks[i]);
+		uint8_t new_diff = c - stackcard;
+		assert(new_diff != 0);
+
+		if(new_diff < 0) // open card smaller than card on current stack
+			continue;
+
+		if(new_diff < old_diff)
+		{
+			old_diff = new_diff;
+			idx = i;
+		}
+	}
+
+	return idx;
+}
+