Charakterbewegungen hinzugefügt, Deko hinzugefügt, Kochrezepte angepasst

mods/futil/util/math.lua

@@ -0,0 +1,162 @@
+futil.math = {}
+
+local floor = math.floor
+local huge = math.huge
+local max = math.max
+local min = math.min
+
+function futil.math.idiv(a, b)
+	local rem = a % b
+	return (a - rem) / b, rem
+end
+
+function futil.math.bound(m, v, M)
+	return max(m, min(v, M))
+end
+
+function futil.math.in_bounds(m, v, M)
+	return m <= v and v <= M
+end
+
+local in_bounds = futil.math.in_bounds
+
+function futil.math.is_integer(v)
+	return floor(v) == v
+end
+
+local is_integer = futil.math.is_integer
+
+function futil.math.is_u8(i)
+	return (type(i) == "number" and is_integer(i) and in_bounds(0, i, 0xFF))
+end
+
+function futil.math.is_u16(i)
+	return (type(i) == "number" and is_integer(i) and in_bounds(0, i, 0xFFFF))
+end
+
+function futil.math.sum(t, initial)
+	local sum
+	local start
+	if initial then
+		sum = initial
+		start = 1
+	else
+		sum = t[1]
+		start = 2
+	end
+
+	for i = start, #t do
+		sum = sum + t[i]
+	end
+
+	return sum
+end
+
+function futil.math.isum(i, initial)
+	local sum
+
+	if initial == nil then
+		sum = i()
+	else
+		sum = initial
+	end
+
+	local v = i()
+
+	while v do
+		sum = sum + v
+		v = i()
+	end
+
+	return sum
+end
+
+function futil.math.product(t, initial)
+	local product
+	local start
+	if initial then
+		product = initial
+		start = 1
+	else
+		product = t[1]
+		start = 2
+	end
+
+	for i = start, #t do
+		product = product * t[i]
+	end
+
+	return product
+end
+
+function futil.math.iproduct(i, initial)
+	local product
+
+	if initial == nil then
+		product = i()
+	else
+		product = initial
+	end
+
+	local v = i()
+
+	while v do
+		product = product * v
+		v = i()
+	end
+
+	return product
+end
+
+function futil.math.probabilistic_round(v)
+	return floor(v + math.random())
+end
+
+function futil.math.cmp(a, b)
+	return a < b
+end
+
+futil.math.deg2rad = math.deg
+
+futil.math.rad2deg = math.rad
+
+function futil.math.do_intervals_overlap(min1, max1, min2, max2)
+	return min1 <= max2 and min2 <= max1
+end
+
+-- i took one class from kahan and can't stop doing this
+local function round(n)
+	local d = n % 1
+	local i = n - d
+
+	if i % 2 == 0 then
+		if d <= 0.5 then
+			return i
+		else
+			return i + 1
+		end
+	else
+		if d < 0.5 then
+			return i
+		else
+			return i + 1
+		end
+	end
+end
+
+function futil.math.round(number, mult)
+	if mult then
+		return round(number / mult) * mult
+	else
+		return round(number)
+	end
+end
+
+-- TODO this doesn't handle out-of-bounds exponents
+function futil.math.to_float32(number)
+	if number == huge or number == -huge or number ~= number then
+		return number
+	end
+	local sign, significand, exponent = ("%a"):format(number):match("^(-?)0x([0-9a-f\\.]+)p([0-9+-]+)$")
+	return tonumber(("%s0x%sp%s"):format(sign, significand:sub(1, 8), exponent))
+end