Module:CharacterStat

Module for interpolating a character's attack/defense/heal/HP stats given their values at levels 1 and 100.

Example usage: {{#invoke:CharacterStat|calculate|lvl=73|rarity=3|stat=defense|val1=19|val100=115}}

---

local p = {}

-- Cumulative rarity bonus per stat.
local STAT_RARITY_BONUS = {
	["attack"] = { 0, 1000, 2200, 3600, 5300 },
	["defense"] = { 0, 0, 0, 0, 0 },
	["heal"] = { 0, 750, 1750, 2950, 4450 },
	["hp"] = { 0, 500, 1200, 2100, 3500 }
}

local function lerp( x, x0, x1, y0, y1 )
	return y0 + (y1 - y0) * (x - x0) / (x1 - x0)
end

function p.calculate( frame )
	local lvl = tonumber(frame.args.lvl)
	local rarity = tonumber (frame.args.rarity)
	local stat = frame.args.stat
	local val1 = tonumber(frame.args.val1)
	local val100 = tonumber(frame.args.val100)
	
	return math.ceil(lerp(lvl, 1, 100, val1, val100) * (10000 + STAT_RARITY_BONUS[stat][rarity]) / 10000)
end

return p