ch.sahits.game.openpatrician.model.product
Class LinearPriceCalculation

java.lang.Object
  ch.sahits.game.openpatrician.model.product.LinearPriceCalculation

All Implemented Interfaces:

IPriceCalculation

final class LinearPriceCalculation
extends Object
implements IPriceCalculation

The most simple form of the price calculation algorithm.

Author:

Andi Hotz, (c) Sahits GmbH, 2011 Created on Nov 27, 2011

Constructor Summary

LinearPriceCalculation()

Method Summary

double

computePrice(int min, int max, int available, int saturation, int productionRate, IPopulationStructure pop, ECityState state) Compute the price for one item of the ware.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LinearPriceCalculation

LinearPriceCalculation()

Method Detail

computePrice

public double computePrice(int min,
                           int max,
                           int available,
                           int saturation,
                           int productionRate,
                           IPopulationStructure pop,
                           ECityState state)

Compute the price for one item of the ware. Though the price is only handled in further computation as integer value, this method returns its value as double so this condition can be tested:
The higher the available amount (but still below the saturation value) the smaller (strictly) the returned value.
For different starting values:
If the starting value b is below starting point a the whole curve of b is below (not necessary strictly) the curve of a. The curve is continues between 0 (inclusive) and infinity.
This implementation uses a linear function between the max value at 0 and the min value at saturation. This however means that the function is not continuous at the point of the saturation.

Specified by:

computePrice in interface IPriceCalculation

Parameters:

min - the lowest possible price (0 exclusive)

max - the highest possible price

available - amount of wares that are available in the market

saturation - amount of items at which the market is saturated (no further price change

productionRate - amount the city can produce within a week

pop - population structure that may have an influence on the calculated price

state - state of the city

Returns:

price for one item sold