// Static Constructor
static StandardCoinMetrics()
{
_allCoinMetrics = new StandardCoinMetrics[3];
_allCoinMetrics[0] = new StandardCoinMetrics(
name: "Nickel",
valueCents: 5,
minWeightGrams: 4.990f,
maxWeightGrams: 5.020f,
minDiameterMm: 21.10f,
maxDiameterMm: 21.30f);
_allCoinMetrics[1] = new StandardCoinMetrics(
name: "Dime",
valueCents: 10,
minWeightGrams: 2.250f,
maxWeightGrams: 2.280f,
minDiameterMm: 17.70f,
maxDiameterMm: 18.00f);
_allCoinMetrics[2] = new StandardCoinMetrics(
name: "Quarter",
valueCents: 25,
minWeightGrams: 5.660f,
maxWeightGrams: 5.680f,
minDiameterMm: 24.10f,
maxDiameterMm: 25.40f);
}
/// <summary>
/// Coin is valid if in range of weight and diameter
/// </summary>
/// <param name="coin"></param>
/// <param name="standardCoinMetrics"></param>
/// <returns></returns>
private static bool IsValidCoin(SampleCoin coin, StandardCoinMetrics standardCoinMetrics)
{
Debug.Assert(coin != null, "coin != null");
Debug.Assert(standardCoinMetrics != null);
var actWeight = coin.WeightGrams;
var actDiameter = coin.DiameterMm;
var minWeight = standardCoinMetrics.MinWeightGrams;
var maxWeight = standardCoinMetrics.MaxWeightGrams;
var minDiameter = standardCoinMetrics.MinDiameterMm;
var maxDiameter = standardCoinMetrics.MaxDiameterMm;
bool weightOk = (minWeight <= actWeight && actWeight <= maxWeight);
bool diameterOk = (minDiameter <= actDiameter && actDiameter <= maxDiameter);
return(weightOk && diameterOk);
}