Fixed shop initial selection to be visible + extracted shop outro

source/game.c

@@ -2251,7 +2251,6 @@ static void game_shop_reroll(int *reroll_cost)
 // Shop input
 static int shop_top_row_get_size()
 {
-    // TODO: Make dynamic to not allow selecting sold items
     return list_get_size(shop_jokers) + 1; // + 1 to account for next round button
 }
 
@@ -2317,7 +2316,8 @@ static void shop_top_row_on_selection_changed(SelectionGrid* selection_grid, int
                                               const Selection* prev_selection, 
                                               const Selection* new_selection)
 {
-    if (prev_selection->y == row_idx)
+    // The selection grid system only guarantees that the new selection is within bounds
+    if (prev_selection->y == row_idx && prev_selection->x >= 0 && prev_selection->x < shop_top_row_get_size())
     {
         if (prev_selection->x == NEXT_ROUND_BTN_SEL_X)
         {
@@ -2380,15 +2380,19 @@ SelectionGridRow shop_selection_rows[] =
     {1, shop_bottom_row_get_size, shop_bottom_row_on_selection_changed, shop_bottom_row_on_key_hit}
 };
 
-// TODO: Initialize selection better
+static const Selection SHOP_INIT_SEL = {-1, 0};
-SelectionGrid shop_selection_grid = {shop_selection_rows, NUM_ELEM_IN_ARR(shop_selection_rows), {0, 0}};
+
+SelectionGrid shop_selection_grid = {shop_selection_rows, NUM_ELEM_IN_ARR(shop_selection_rows), SHOP_INIT_SEL};
 
 // Shop menu input and selection
 static void game_shop_process_user_input()
 {
-
     if (timer == 1)
     {
+        // The selection grid is initialized outside of bounds and moved 
+        // to trigger the selection change so the initial selection is visible
+        shop_selection_grid.selection = SHOP_INIT_SEL;
+        selection_grid_move_selection_horz(&shop_selection_grid, 1);
         tte_printf("#{P:%d,%d; cx:0xF000}$%d", SHOP_REROLL_RECT.left, SHOP_REROLL_RECT.top, reroll_cost);
     }
 
@@ -2421,42 +2425,9 @@ static void game_shop_lights_anim_frame()
     memcpy16(&pal_bg_mem[8], &shifted_palette[3], 1);
 }
 
-void game_shop()
+// Outro sequence (menu and shop icon going out of frame)
+static void game_shop_outro()
 {
-    change_background(BG_ID_SHOP);
-
-    if (shop_jokers != NULL)
-    {
-        for (int i = 0; i < list_get_size(shop_jokers); i++)
-        {
-            JokerObject *joker_object = list_get(shop_jokers, i);
-            if (joker_object != NULL)
-            {
-                joker_object_update(joker_object);
-            }
-        }
-    }
-    
-
-    if (timer % 20 == 0)
-    {
-        game_shop_lights_anim_frame();
-    }
-
-    switch (state) // I'm only using magic numbers here for the sake of simplicity since it's just sequential, but you can replace them with named constants or enums if it makes it clearer
-    {
-        case 0: 
-        {           
-            game_shop_intro();
-            break;
-        }    
-        case 1:
-        {
-            game_shop_process_user_input();
-            break;
-        }
-        case 2: // Outro sequence (menu and shop icon going out of frame)
-        {
     // Shift the shop panel
     main_bg_se_move_rect_1_tile_vert(POP_MENU_ANIM_RECT, SE_DOWN);
 
@@ -2496,22 +2467,56 @@ void game_shop()
         state = 3; // Go to the next state
         timer = 0; // Reset the timer
     }
+}
 
+void game_shop()
+{
+    change_background(BG_ID_SHOP);
+
+    if (shop_jokers != NULL)
+    {
+        for (int i = 0; i < list_get_size(shop_jokers); i++)
+        {
+            JokerObject *joker_object = list_get(shop_jokers, i);
+            if (joker_object != NULL)
+            {
+                joker_object_update(joker_object);
+            }
+        }
+    }
+    
+
+    if (timer % 20 == 0)
+    {
+        game_shop_lights_anim_frame();
+    }
+
+    switch (state) // I'm only using magic numbers here for the sake of simplicity since it's just sequential, but you can replace them with named constants or enums if it makes it clearer
+    {
+        case 0: 
+        {           
+            game_shop_intro();
+            break;
+        }    
+        case 1:
+        {
+            game_shop_process_user_input();
+            break;
+        }
+        case 2: 
+        {
+            game_shop_outro();
             break;
         }
         default:
             state = 0; // Reset the state
 
-            selection_x = 0; // Reset the selection
-            selection_y = 0; // Reset the selection
-
             for (int i = 0; i < list_get_size(shop_jokers); i++)
             {
                 JokerObject* joker_object = list_get(shop_jokers, i);
                 if (joker_object != NULL)
                 {
                     // Make the joker available back to shop                    
-                    
                     int_list_append(jokers_available_to_shop, (intptr_t)joker_object->joker->id);
                 }
                 joker_object_destroy(&joker_object); // Destroy the joker objects
@@ -2526,6 +2531,8 @@ void game_shop()
     }
 }
 
+
+
 void game_blind_select()
 {
     switch (state) // I'm only using magic numbers here for the sake of simplicity since it's just sequential, but you can replace them with named constants or enums if it makes it clearer

source/selection_grid.c

@@ -55,7 +55,10 @@ void selection_grid_move_selection_vert(SelectionGrid *selection_grid, int direc
             // Clip selection to row size
             new_selection.x = new_row_size - 1;
         }
+        if (selection.y >= 0 && selection.y < selection_grid->num_rows)
+        {
             selection_grid->rows[selection.y].on_selection_changed(selection_grid, selection.y, &selection, &new_selection);
+        }
         selection_grid->rows[new_selection.y].on_selection_changed(selection_grid, new_selection.y, &selection, &new_selection);
         selection_grid->selection = new_selection;
     }