Add prestige graph

core/big_number.gd

@@ -195,6 +195,16 @@ func get_ratio(target: BigNumber) -> float:
 static func from_float(val: float) -> BigNumber:
 	return BigNumber.new(val, 0)
 
+## Converts this BigNumber to a standard float. Returns INF or 0.0 for extreme values.
+func to_float() -> float:
+	if mantissa <= 0.0:
+		return 0.0
+	if exponent > 308:
+		return INF
+	if exponent < -308:
+		return 0.0
+	return mantissa * pow(10.0, float(exponent))
+
 ## Outputs a UI-friendly string (e.g., "1.50e12")
 func to_string_sci(decimals: int = 2) -> String:
 	if exponent < 3: