/
Parameter.cs
287 lines (249 loc) · 8.36 KB
/
Parameter.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace PcmHacking
{
/// <summary>
/// Stores the math expression that converts a value from the PCM into
/// something humans can understand.
/// </summary>
public class Conversion
{
public string Units { get; private set; }
public string Expression { get; private set; }
public string Format { get; private set; }
public bool IsBitMapped { get; private set; }
public int BitIndex { get; private set; }
public string TrueValue { get; private set; }
public string FalseValue { get; private set; }
public Conversion(string units, string expression, string format)
{
this.Units = units;
this.Expression = Sanitize(expression);
this.Format = format;
this.IsBitMapped = false;
this.BitIndex = -1;
this.TrueValue = null;
this.FalseValue = null;
}
public Conversion(string units, int bitIndex, string trueValue, string falseValue)
{
this.Units = units;
this.Expression = "x";
this.Format = "";
this.IsBitMapped = true;
this.BitIndex = bitIndex;
this.TrueValue = trueValue;
this.FalseValue = falseValue;
}
public override string ToString()
{
return this.Units;
}
/// <summary>
/// The expression parser doesn't support bit-shift operators.
/// So we hack them into division operators here.
/// It's not pretty, but it's less ugly than changing the
/// expressions in the XML file.
/// </summary>
private string Sanitize(string input)
{
int startIndex = input.IndexOf(">>");
if (startIndex == -1)
{
return input;
}
int endIndex = startIndex;
char shiftChar = ' ';
for (int index = startIndex + 2; index < input.Length; index++)
{
endIndex = index;
shiftChar = input[index];
if (shiftChar == ' ')
{
continue;
}
else
{
endIndex++;
break;
}
}
int shiftCount = shiftChar - '0';
if (shiftCount < 0 || shiftCount > 15)
{
throw new InvalidOperationException(
string.Format("Unable to parse >> operator in \"{0}\"", input));
}
string oldText = input.Substring(startIndex, endIndex - startIndex);
string newText = string.Format("/{0}", Math.Pow(2, shiftCount));
return input.Replace(oldText, newText);
}
}
/// <summary>
/// Base class for various parameter types (PID, RAM, Math)
/// </summary>
public abstract class Parameter
{
public string Id { get; protected set; }
public string Name { get; protected set; }
public string Description { get; protected set; }
public IEnumerable<Conversion> Conversions { get; protected set; }
public override string ToString()
{
return this.Name;
}
public bool TryGetConversion(string units, out Conversion conversion)
{
foreach(Conversion candidate in this.Conversions)
{
if (candidate.Units == units)
{
conversion = candidate;
return true;
}
}
conversion = null;
return false;
}
public abstract bool IsSupported(uint osid);
}
/// <summary>
/// Base class for parameters that come directly from the PCM - as opposed
/// to Math parameters, which are only indirectly from the PCM.
/// </summary>
public abstract class PcmParameter : Parameter
{
public string StorageType { get; protected set; }
public int ByteCount
{
get
{
switch(this.StorageType)
{
case "uint8":
case "int8":
return 1;
case "uint16":
case "int16":
return 2;
default:
return 0;
}
}
}
public bool IsSigned
{
get
{
switch (this.StorageType)
{
case "int8":
case "int16":
return true;
case "uint8":
case "uint16":
return false;
default:
return false;
}
}
}
public bool BitMapped { get; protected set; }
}
/// <summary>
/// These parameters have a PID number that is the same for all operating
/// systems. (Though not not all operating systems support all PIDs.)
/// </summary>
public class PidParameter : PcmParameter
{
public uint PID { get; private set; }
/// <summary>
/// Constructor for standard PID parameters.
/// </summary>
public PidParameter(
uint id,
string name,
string description,
string storageType,
bool bitMapped,
IEnumerable<Conversion> conversions)
{
this.Id = id.ToString("X4");
this.PID = UnsignedHex.GetUnsignedHex("0x" + this.Id);
this.Name = name;
this.Description = description;
this.StorageType = storageType;
this.BitMapped = bitMapped;
this.Conversions = conversions;
}
public override bool IsSupported(uint osid)
{
return true;
}
}
/// <summary>
/// These parameters are read from RAM in the PCM, and the RAM addresses
/// are unique to each operating system.
/// </summary>
public class RamParameter : PcmParameter
{
private readonly Dictionary<uint, uint> addresses;
/// <summary>
/// Constructor for RAM parameters.
/// </summary>
public RamParameter(
string id,
string name,
string description,
string storageType,
bool bitMapped,
IEnumerable<Conversion> conversions,
Dictionary<uint, uint> addresses)
{
this.Id = id;
this.Name = name;
this.Description = description;
this.StorageType = storageType;
this.BitMapped = bitMapped;
this.Conversions = conversions;
this.addresses = addresses;
}
public bool TryGetAddress(uint osid, out uint address)
{
return this.addresses.TryGetValue(osid, out address);
}
public override bool IsSupported(uint osid)
{
uint address;
return this.TryGetAddress(osid, out address);
}
}
/// <summary>
/// These parameters are computed from other parameters.
/// </summary>
public class MathParameter : Parameter
{
public LogColumn XColumn { get; private set; }
public LogColumn YColumn { get; private set; }
public MathParameter(
string id,
string name,
string description,
IEnumerable<Conversion> conversions,
LogColumn xColumn,
LogColumn yColumn)
{
this.Id = id;
this.Name = name;
this.Description = description;
this.Conversions = conversions;
this.XColumn = xColumn;
this.YColumn = yColumn;
}
public override bool IsSupported(uint osid)
{
return this.XColumn.Parameter.IsSupported(osid) && this.YColumn.Parameter.IsSupported(osid);
}
}
}