fix: select top of drawn cards after double clicking

Before it would select the cards as if they were a regular stack on the
board.

src/main.zig

@@ -335,8 +335,14 @@ fn render(window: *seizer.Window) !void {
     }
 
     {
+        const is_selected = selected_deck != null and selected_deck.? == &draw_pile;
         const is_hovered = hovered_deck != null and hovered_deck.? == &draw_pile;
-        const color = if (is_hovered) [4]u8{ 0xA0, 0xFF, 0xA0, 0xFF } else [4]u8{ 0xFF, 0xFF, 0xFF, 0xFF };
+        const color = if (is_selected)
+            [4]u8{ 0xFF, 0xA0, 0xA0, 0xFF }
+        else if (is_hovered)
+            [4]u8{ 0xA0, 0xFF, 0xA0, 0xFF }
+        else
+            [4]u8{ 0xFF, 0xFF, 0xFF, 0xFF };
 
         var pos = [2]f32{ @floatFromInt(margin), @floatFromInt(margin) };
         pos[0] += board_offset[0];
@@ -466,7 +472,12 @@ pub fn doSelectOrPlace(pressed: bool) !void {
                 if ((empty and ace) or (suit_matches and is_next_rank)) {
                     foundation.ensureUnusedCapacity(gpa, 1) catch continue;
                     foundation.appendAssumeCapacity(selected_deck.?.pop());
-                    hovered_card = indexOfTopOfStack(hovered_deck.?.items);
+
+                    hovered_card = if (hovered_deck.? == &drawn_cards)
+                        hovered_deck.?.items.len -| 1
+                    else
+                        indexOfTopOfStack(hovered_deck.?.items);
+
                     cards_moved = true;
                     break;
                 }
@@ -475,9 +486,13 @@ pub fn doSelectOrPlace(pressed: bool) !void {
             }
         }
 
-        try history.append(gpa, snapshot);
+        if (cards_moved) {
+            try history.append(gpa, snapshot);
+        }
+
         selected_deck = null;
     } else {
+        var cards_moved = false;
         const snapshot = try Snapshot.initFromCurrentGlobalState();
         if (selected_deck) |selected| move_from_selected_to_hovered: {
             const selected_substack = selected.items[selected_card..];
@@ -492,7 +507,7 @@ pub fn doSelectOrPlace(pressed: bool) !void {
                     hovered.appendSliceAssumeCapacity(selected_substack);
                     selected.shrinkRetainingCapacity(selected.items.len - selected_substack.len);
                     hovered_card = indexOfTopOfStack(hovered_deck.?.items);
-                    try history.append(gpa, snapshot);
+                    cards_moved = true;
                     break :move_from_selected_to_hovered;
                 }
 
@@ -513,7 +528,7 @@ pub fn doSelectOrPlace(pressed: bool) !void {
                             foundation.ensureUnusedCapacity(gpa, 1) catch continue;
                             foundation.appendAssumeCapacity(selected_deck.?.pop());
                             hovered_card = indexOfTopOfStack(hovered_deck.?.items);
-                            try history.append(gpa, snapshot);
+                            cards_moved = true;
                             break :move_from_selected_to_hovered;
                         }
                     }
@@ -523,7 +538,7 @@ pub fn doSelectOrPlace(pressed: bool) !void {
             }
 
             if (hovered.items[hovered.items.len - 1].rank - 1 != selected_substack[0].rank or
-                hovered.items[hovered.items.len - 1].suit == selected_substack[0].suit)
+                hovered.items[hovered.items.len - 1].suit.color() == selected_substack[0].suit.color())
             {
                 break :move_from_selected_to_hovered;
             }
@@ -531,6 +546,9 @@ pub fn doSelectOrPlace(pressed: bool) !void {
             hovered.appendSliceAssumeCapacity(selected_substack);
             selected.shrinkRetainingCapacity(selected.items.len - selected_substack.len);
             hovered_card = indexOfTopOfStack(hovered_deck.?.items);
+            cards_moved = true;
+        }
+        if (cards_moved) {
             try history.append(gpa, snapshot);
         }
         selected_deck = null;