void main()
{
int len, pos, *del;
plist pl = NULL;
del = (int*)malloc(sizeof(int));
pl = init_list();
isEmpty_list(pl);
insert_item(pl, 1, 1);
insert_item(pl, 2, 3);
insert_item(pl, 3, 5);
insert_item(pl, 4, 7);
insert_item(pl, 5, 9);
insert_item(pl, 6, 11);
display(pl);
len = len_list(pl);
printf("link list len: %d\n", len);
pos = locate_item(pl, 7);
printf("num 7 pos: %d\n", pos);
delete_item(pl, 3, del);
printf("delete pos 3 num: %d\n", *del);
display(pl);
printf("link list traverse...\n");
pl = traverse_list(pl);
display(pl);
destroy_list(pl);
getch();
}
/**
* Open the player shop. */
void shop_open()
{
_shop_struct *shop_item_tmp;
char buf[HUGE_BUF];
/* Need at least one item */
if (shop_gui->shop_items_count < 1)
{
draw_info("You need to have at least one item to sell in order to open a shop.", COLOR_RED);
return;
}
strcpy(buf, "shop open");
/* Loop through the shop items */
for (shop_item_tmp = shop_gui->shop_items; shop_item_tmp; shop_item_tmp = shop_item_tmp->next)
{
char tmp_buf[MAX_BUF];
item *shop_item = locate_item(shop_item_tmp->tag);
/* If the item could not be found, something is wrong */
if (!shop_item)
{
draw_info("Unable to locate shop item from tag.", COLOR_RED);
clear_shop(0);
return;
}
/* Some checking */
if (shop_item_tmp->price < 1 || shop_item_tmp->price > MAX_PRICE_VALUE)
{
draw_info_format(COLOR_RED, "The item %s doesn't have a valid price.", shop_item->s_name);
return;
}
else if (shop_item_tmp->nrof < 1 || shop_item_tmp->nrof > MAX_PRICE_VALUE)
{
draw_info_format(COLOR_RED, "The item %s doesn't have a valid nrof.", shop_item->s_name);
return;
}
/* Store the item tag, nrof and price */
snprintf(tmp_buf, sizeof(tmp_buf), "|%d:%d:%d", shop_item_tmp->tag, shop_item_tmp->nrof, shop_item_tmp->price);
/* Append it to the socket string */
strncat(buf, tmp_buf, sizeof(buf) - strlen(buf) - 1);
}
/* Write the socket string to server */
cs_write_string(buf, strlen(buf));
/* The shop is now open */
shop_gui->shop_state = SHOP_STATE_OPEN;
}
/**
* Buy a shop item. */
void shop_buy_item()
{
char buf[MAX_BUF];
item *shop_item = locate_item(shop_gui->selected_tag);
_shop_struct *shop_item_tmp;
/* Loop through the shop items */
for (shop_item_tmp = shop_gui->shop_items; shop_item_tmp; shop_item_tmp = shop_item_tmp->next)
{
/* If the tag matches */
if (shop_item_tmp->tag == shop_item->tag)
{
/* If the nrof is the same, we will want to remove the item from the list */
if (shop_item_tmp->nrof == shop_item->nrof)
{
shop_remove_item(shop_item->tag);
}
break;
}
}
/* Sanity check */
if (!shop_item_tmp)
{
return;
}
/* If the nrof is not the same, decrease the shop inventory item's nrof */
if (shop_item_tmp->nrof != shop_item->nrof)
{
shop_item->nrof -= shop_item_tmp->nrof;
}
/* Store the information in a buffer */
snprintf(buf, sizeof(buf), "shop buy %s %d %d", shop_gui->shop_owner, shop_item->tag, shop_item_tmp->nrof);
/* Send the buffer */
cs_write_string(buf, strlen(buf));
}
/**
* Put an item to the shop GUI. Called when dropping a dragged item.
* @param x X position of the item
* @param y Y position of the item
* @return 1 if the XY positions were within the shop GUI, 0 otherwise */
int shop_put_item(int x, int y)
{
/* If we are in the shop GUI */
if (x > cur_widget[SHOP_ID].x1 && x < cur_widget[SHOP_ID].x1 + Bitmaps[BITMAP_SHOP]->bitmap->w && y > cur_widget[SHOP_ID].y1 && y < cur_widget[SHOP_ID].y1 + Bitmaps[BITMAP_SHOP]->bitmap->h)
{
_shop_struct *shop_item_tmp;
item *item_object;
int i;
/* If we're not opening or the item limit was reached, return */
if (shop_gui->shop_state != SHOP_STATE_NONE || shop_gui->shop_items_count >= SHOP_MAX_ITEMS)
{
draggingInvItem(DRAG_NONE);
itemExamined = 0;
return 1;
}
/* Loop through shop items */
for (shop_item_tmp = shop_gui->shop_items; shop_item_tmp; shop_item_tmp = shop_item_tmp->next)
{
/* If the item is already in the GUI, return */
if (shop_item_tmp->tag == cpl.win_inv_tag)
{
draggingInvItem(DRAG_NONE);
itemExamined = 0;
return 1;
}
}
/* Locate the item */
item_object = locate_item(cpl.win_inv_tag);
/* Sanity check, shouldn't happen */
if (!item_object)
{
draggingInvItem(DRAG_NONE);
itemExamined = 0;
return 1;
}
else if (item_object->itype == TYPE_MONEY)
{
draw_info_format(COLOR_WHITE, "The %s is not allowed to be sold in a player shop.", item_object->s_name);
draggingInvItem(DRAG_NONE);
itemExamined = 0;
return 1;
}
else if (item_object->locked)
{
draw_info_format(COLOR_WHITE, "You must unlock the %s before attempting to sell it.", item_object->s_name);
draggingInvItem(DRAG_NONE);
itemExamined = 0;
return 1;
}
/* Don't allow things from the quickslots. */
for (i = 0; i < MAX_QUICK_SLOTS * MAX_QUICKSLOT_GROUPS; i++)
{
if (quick_slots[i].tag == cpl.win_inv_tag)
{
draw_info_format(COLOR_WHITE, "You must first remove %s from your quickslots.", item_object->s_name);
draggingInvItem(DRAG_NONE);
itemExamined = 0;
return 1;
}
}
/* Allocate a new item */
shop_item_tmp = (_shop_struct *) malloc(sizeof(_shop_struct));
/* Initialize values for the object */
shop_item_tmp->nrof = item_object->nrof;
shop_item_tmp->price = 0;
shop_item_tmp->price_buf[0] = '\0';
shop_item_tmp->tag = cpl.win_inv_tag;
shop_item_tmp->next = NULL;
/* One more shop item */
shop_gui->shop_items_count++;
/* Set the selected tag to the object's tag */
shop_gui->selected_tag = shop_item_tmp->tag;
/* Easier if there are no shop items yet */
if (!shop_gui->shop_items)
{
shop_gui->shop_items = shop_item_tmp;
}
/* Otherwise we want to append the item to the end of the list */
else
{
_shop_struct *shop_item_next = shop_gui->shop_items;
int i;
/* Loop until we find the end of the list */
for (i = 1; i < shop_gui->shop_items_count - 1 && shop_item_next; i++, shop_item_next = shop_item_next->next)
{
}
/* Append it to the end of the list */
shop_item_next->next = shop_item_tmp;
}
draggingInvItem(DRAG_NONE);
itemExamined = 0;
shop_gui->current_cursor_pos = 0;
return 1;
}
return 0;
}
/**
* Show the shop GUI widget.
* @param x X position of the widget
* @param y Y position of the widget */
void widget_show_shop(int x, int y)
{
/* Show the main shop bitmap */
sprite_blt(Bitmaps[BITMAP_SHOP], x, y, NULL, NULL);
/* Add a close button at top right */
shop_add_close_button(x + Bitmaps[BITMAP_SHOP]->bitmap->w - 10, y + 2);
/* Sanity check, because the close button can close the GUI */
if (!shop_gui)
{
return;
}
/* Show a title for the shop widget */
if (shop_gui->shop_state == SHOP_STATE_BUYING)
{
char buf[MAX_BUF];
snprintf(buf, sizeof(buf), "Shop: %s", shop_gui->shop_owner);
StringBlt(ScreenSurface, &SystemFont, buf, x + 4, y + 1, COLOR_BLACK, NULL, NULL);
StringBlt(ScreenSurface, &SystemFont, buf, x + 5, y + 2, COLOR_WHITE, NULL, NULL);
}
else
{
StringBlt(ScreenSurface, &SystemFont, "Shop", x + 4, y + 1, COLOR_BLACK, NULL, NULL);
StringBlt(ScreenSurface, &SystemFont, "Shop", x + 5, y + 2, COLOR_WHITE, NULL, NULL);
}
/* Determine the right kind of buttons and inputs to show */
switch (shop_gui->shop_state)
{
/* Show "Open" button and Price/Number inputs */
case SHOP_STATE_NONE:
if (shop_gui->selected_tag)
{
shop_add_button(x + 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - Bitmaps[BITMAP_DIALOG_BUTTON_UP]->bitmap->h - 3, "Remove");
}
shop_add_button(x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_DIALOG_BUTTON_UP]->bitmap->w - 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - Bitmaps[BITMAP_DIALOG_BUTTON_UP]->bitmap->h - 3, "Open");
if (!shop_gui)
{
return;
}
StringBlt(ScreenSurface, &SystemFont, "Price:", x + 5, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 56, COLOR_BLACK, NULL, NULL);
if (shop_gui->input_type == SHOP_INPUT_TYPE_PRICE)
{
StringBlt(ScreenSurface, &SystemFont, "Price:", x + 6, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 55, COLOR_HGOLD, NULL, NULL);
}
else
{
StringBlt(ScreenSurface, &SystemFont, "Price:", x + 6, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 55, COLOR_WHITE, NULL, NULL);
}
sprite_blt(Bitmaps[BITMAP_SHOP_INPUT], x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 57, NULL, NULL);
StringBlt(ScreenSurface, &SystemFont, "Number:", x + 5, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 39, COLOR_BLACK, NULL, NULL);
if (shop_gui->input_type == SHOP_INPUT_TYPE_NROF)
{
StringBlt(ScreenSurface, &SystemFont, "Number:", x + 6, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 38, COLOR_HGOLD, NULL, NULL);
}
else
{
StringBlt(ScreenSurface, &SystemFont, "Number:", x + 6, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 38, COLOR_WHITE, NULL, NULL);
}
sprite_blt(Bitmaps[BITMAP_SHOP_INPUT], x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 40, NULL, NULL);
break;
/* Shop "Buy" and "Examine" buttons and Number input */
case SHOP_STATE_BUYING:
if (shop_gui->selected_tag)
{
shop_add_button(x + 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - Bitmaps[BITMAP_DIALOG_BUTTON_UP]->bitmap->h - 3, "Buy");
shop_add_button(x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_DIALOG_BUTTON_UP]->bitmap->w - 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - Bitmaps[BITMAP_DIALOG_BUTTON_UP]->bitmap->h - 3, "Examine");
}
StringBlt(ScreenSurface, &SystemFont, "Number:", x + 5, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 56, COLOR_BLACK, NULL, NULL);
if (shop_gui->input_type == SHOP_INPUT_TYPE_NROF)
{
StringBlt(ScreenSurface, &SystemFont, "Number:", x + 6, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 55, COLOR_HGOLD, NULL, NULL);
}
else
{
StringBlt(ScreenSurface, &SystemFont, "Number:", x + 6, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 55, COLOR_WHITE, NULL, NULL);
}
sprite_blt(Bitmaps[BITMAP_SHOP_INPUT], x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 4, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 57, NULL, NULL);
break;
}
/* If there are items to show */
if (shop_gui->shop_items)
{
_shop_struct *shop_item_tmp;
int item_x = 36, item_y = 18, i = 1, found_selected = 0;
int mx, my, mb;
char buf[MAX_BUF];
mb = SDL_GetMouseState(&mx, &my) & SDL_BUTTON(SDL_BUTTON_LEFT);
/* Loop through the items */
for (shop_item_tmp = shop_gui->shop_items; shop_item_tmp; shop_item_tmp = shop_item_tmp->next)
{
item *shop_item;
/* Item is gone */
if (shop_item_tmp->tag == -1)
{
continue;
}
shop_item = locate_item(shop_item_tmp->tag);
if (!shop_item)
{
continue;
}
/* If we clicked on the item, set the selected tag accordingly */
if (mx > x + item_x && mx < x + item_x + 32 && my > y + item_y && my < y + item_y + 32 && mb && mb_clicked)
{
shop_gui->selected_tag = shop_item_tmp->tag;
switch (shop_gui->shop_state)
{
case SHOP_STATE_NONE:
shop_gui->current_cursor_pos = (int) strlen(shop_item_tmp->price_buf);
break;
case SHOP_STATE_BUYING:
snprintf(buf, sizeof(buf), "%d", shop_item_tmp->nrof);
shop_gui->current_cursor_pos = (int) strlen(buf);
break;
}
}
/* If this is the selected item, show a marker */
if (shop_item_tmp->tag == shop_gui->selected_tag)
{
found_selected = 1;
sprite_blt(Bitmaps[BITMAP_INVSLOT], x + item_x, y + item_y, NULL, NULL);
switch (shop_gui->shop_state)
{
/* Show "Open" button and Price/Number inputs */
case SHOP_STATE_NONE:
snprintf(buf, sizeof(buf), "%s", shop_item_tmp->price_buf);
strcpy(buf, shop_show_input(buf, &SystemFont, Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 5, shop_gui->input_type == SHOP_INPUT_TYPE_PRICE ? 1 : 0));
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 55, COLOR_BLACK, NULL, NULL);
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 1, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 56, COLOR_WHITE, NULL, NULL);
snprintf(buf, sizeof(buf), "%d", shop_item_tmp->nrof);
strcpy(buf, shop_show_input(buf, &SystemFont, Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 5, shop_gui->input_type == SHOP_INPUT_TYPE_NROF ? 1 : 0));
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 38, COLOR_BLACK, NULL, NULL);
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 1, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 39, COLOR_WHITE, NULL, NULL);
break;
case SHOP_STATE_BUYING:
snprintf(buf, sizeof(buf), "%d", shop_item_tmp->nrof);
strcpy(buf, shop_show_input(buf, &SystemFont, Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 5, shop_gui->input_type == SHOP_INPUT_TYPE_NROF ? 1 : 0));
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 55, COLOR_BLACK, NULL, NULL);
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w - 1, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 56, COLOR_WHITE, NULL, NULL);
break;
}
if (shop_gui->shop_state != SHOP_STATE_OPEN)
{
snprintf(buf, sizeof(buf), "Price:%s", shop_int2price(shop_item_tmp->price));
StringBlt(ScreenSurface, &SystemFont, buf, x + Bitmaps[BITMAP_SHOP]->bitmap->w - Bitmaps[BITMAP_SHOP_INPUT]->bitmap->w, y + Bitmaps[BITMAP_SHOP]->bitmap->h - 75, COLOR_WHITE, NULL, NULL);
}
}
blt_inv_item(shop_item, x + item_x, y + item_y, shop_gui->shop_state == SHOP_STATE_NONE ? shop_item_tmp->nrof : shop_item->nrof);
/* Adjust the item X position */
item_x += 32;
/* If we hit fourth item, adjust the positions */
if (i == 4)
{
item_x = 36;
item_y += 32;
i = 0;
}
i++;
}
if (shop_gui->selected_tag && !found_selected)
{
shop_gui->selected_tag = 0;
}
}
}
