grid = {} --51 per 32
for i = 0, 51 do
    grid[i] = {}
end

function reset()
	for i = 0, 51 do
		for e = 0, 32 do
			grid[i][e] = 0
		end
	end
end

function check()
	reset()
	tpt.start_getPartIndex()
	while tpt.next_getPartIndex() do
		local index = tpt.getPartIndex()
		if tpt.get_property("type", index) == 18 then
			grid[math.floor(tpt.get_property("x", index) / 51)][math.floor(tpt.get_property("y", index) / 32)] = grid[math.floor(tpt.get_property("x", index) / 51)][math.floor(tpt.get_property("y", index) / 32)] + 1 --I hate this line
		end
	end
	tpt.drawtext(20, 30, "Rad "..tostring(grid[math.floor(tpt.mousex / 51)][math.floor(tpt.mousey / 32)]))

end

tpt.register_step(check)