SGnG chest hitbox display for bizhawk

memory.usememorydomain("CARTROM")


local function chestHitbox()
	cam_x = mainmemory.read_u16_le(0x15DD)
	cam_y = mainmemory.read_u16_le(0x15E1)

	offset = 0x90F
	slots = 0x1F

	for i = 0, slots, 1 do
		asd = mainmemory.read_u16_le(offset)
		asd2 = mainmemory.read_u16_le(offset+4)
		if asd == 0x0101 and asd2 == 0x02B6 then
			type = bit.lshift(mainmemory.readbyte(offset + 0x06), 1)
			x_rad = memory.read_u8(0x5BDE + type)
			y_rad = memory.read_u8(0x5BDE + type + 1)
			x_pos = mainmemory.read_u16_le(offset + 0x1F)
			y_pos = mainmemory.read_u16_le(offset + 0x22)
			gui.drawRectangle(x_pos - cam_x - x_rad, y_pos - cam_y - y_rad, x_rad * 2, y_rad * 2, 0x9900FF00, 0) --hitbox

			chestNumber = mainmemory.read_u8(0x0337)
			gui.drawText(x_pos - cam_x - x_rad, y_pos - cam_y - y_rad, chestNumber + 1, 0xBBFFFFFF, 0, 10)
		end
		offset = offset + 0x41
	end
end


while true do
	chestHitbox()

	emu.frameadvance()
end