public static int GetAdvanceCost(SacrificeCostGrowth growthMode, int tier, float costBase, float growthFactor, int startTier)
{
if (tier == -1 || tier == 9)
{
return(-1);
}
return(CalculateBaseCost(growthMode, tier, costBase, growthFactor, startTier));
}
/// <summary>
/// Gets the cost of going up tiers according to formula.
/// Cost is that of bloodstones.
/// </summary>
/// <param name="tier">The current tier of soul reap.</param>
/// <returns>The base cost of leveling up soul reap, in bloodstones.</returns>
protected static int CalculateBaseCost(SacrificeCostGrowth growthMode, int tier, float costBase, float growthFactor, int startTier)
{
var tierDiff = Math.Max(0, tier - startTier);
switch (growthMode)
{
case SacrificeCostGrowth.Linear:
return((int)(costBase + tierDiff * growthFactor));
case SacrificeCostGrowth.Exponential:
return((int)(costBase * Math.Max(1, (int)Math.Pow(growthFactor, tierDiff))));
case SacrificeCostGrowth.Quadratic:
return((int)(costBase + costBase * tierDiff * tierDiff));
default: return(0);
}
}
