ItemGrid.h File Reference

#include "Library/Geometry/Point.h"
#include "Engine/Objects/Item.h"

Functions
int	itemOffset (int dimension)
	Calculate offsets for placing items in inventory grid. More...
Pointi	mapToInventoryGrid (Pointi mousePos, Pointi inventoryTopLeft, Item *heldItem=nullptr)
Pointi	mapFromInventoryGrid (Pointi gridPos, Pointi inventoryTopLeft)

Function Documentation

itemOffset()

int itemOffset

(

int

dimension

)

Calculate offsets for placing items in inventory grid.

Inventory grid have 32x32 pixels cells. Items don't exactly fit into the grid, but are slightly smaller or larger. The function calculates offsets for the item to be centered. Calculations are the same for height and width.

Parameters

dimension

Width or height of the item.

Returns

Offset in pixels.

mapFromInventoryGrid()

Pointi mapFromInventoryGrid	(	Pointi	gridPos,
		Pointi	inventoryTopLeft
	)

mapToInventoryGrid()

Pointi mapToInventoryGrid	(	Pointi	mousePos,
		Pointi	inventoryTopLeft,
		Item *	heldItem = nullptr
	)

Parameters

mousePos	Mouse position.
inventoryTopLeft	Top left position of the inventory grid.
heldItem	The Item the player is holding (if exists). If there is an item here, the mouse position is adjusted to snap to the center of the grid cell rather than the edge. If not, ItemId = ITEM_NULL, then the mouse position will not be adjusted for items.

Returns

Inventory grid position, in grid coordinates. Might be out of grid if the mouse position is out of grid.