Method validate

src/main/java/gregapi/util/ST.java:136–136

(ItemStack aStack)

	public static boolean invalid(ItemStack aStack) {return aStack == null || aStack.stackSize <  0 || item_(aStack) == null;}
	
	public static ItemStack validate(ItemStack aStack) {return valid(aStack)                         ? aStack : null;}
	public static ItemStack valisize(ItemStack aStack) {return valid(aStack) && aStack.stackSize > 0 ? aStack : null;}
	
	public static short id (Item      aItem ) {return aItem  == null ? 0 : id_(aItem);}