Module:Falloff

Documentation for this module may be created at Module:Falloff/doc

-- Draws a weapon's damage falloff as a bar chart. Hovering a bar shows the
-- damage at that distance, as the game's inspect window reads it out.
local data = mw.loadData('Module:Falloff/data')
local p = {}

local BAR = '#5b8def'
local LINE = '#a2a9b1'

function p.chart(frame)
	local name = frame.args[1]
	if not name or name == '' then
		name = mw.title.getCurrentTitle().text
	end
	local w = data[name]
	if not w then
		return ''
	end
	local top = 1
	for _, s in ipairs(w.samples) do
		top = math.max(top, s[2])
	end
	local out = {}
	table.insert(out, '<div style="max-width:640px;margin:8px 0 4px 0;">')
	table.insert(out, '<div style="position:relative;height:180px;border-left:1px solid ' .. LINE
		.. ';border-bottom:1px solid ' .. LINE .. ';display:flex;align-items:flex-end;">')
	-- The full-damage line.
	table.insert(out, string.format('<div style="position:absolute;left:0;right:0;bottom:%.2f%%;border-top:1px dashed %s;"></div>',
		100 / top, LINE))
	for _, t in ipairs(w.thresholds) do
		table.insert(out, string.format(
			'<div style="position:absolute;top:0;bottom:0;left:%.2f%%;border-left:1px dotted %s;"></div>',
			t / w.max * 100, LINE))
	end
	for _, s in ipairs(w.samples) do
		table.insert(out, string.format(
			'<div title="%s" style="flex:1;height:%.2f%%;background:%s;border-right:1px solid #fff;cursor:crosshair;"></div>',
			mw.text.encode(s[3]), s[2] / top * 100, BAR))
	end
	table.insert(out, '</div>')
	-- Distances under the axis: the start, every threshold, the end.
	table.insert(out, '<div style="position:relative;height:1.4em;font-size:85%;">')
	table.insert(out, '<span style="position:absolute;left:0;">0 m</span>')
	for _, t in ipairs(w.thresholds) do
		table.insert(out, string.format('<span style="position:absolute;left:%.2f%%;transform:translateX(-50%%);">%s m</span>',
			t / w.max * 100, mw.language.getContentLanguage():formatNum(math.floor(t * 10 + 0.5) / 10)))
	end
	table.insert(out, string.format('<span style="position:absolute;right:0;">%s m</span>',
		mw.language.getContentLanguage():formatNum(math.floor(w.max * 10 + 0.5) / 10)))
	table.insert(out, '</div>')
	table.insert(out, '<div style="font-size:85%;color:#54595d;">Hover the chart to read the damage at each distance. The dashed line is full damage; dotted lines mark where the falloff changes.</div>')
	table.insert(out, '</div>')
	return table.concat(out)
end

return p