public override bool Combine(Operator op, bool a, object b, out StoryVar result)
{
result = default(StoryVar);
if (op == Operator.LogicalAnd || op == Operator.LogicalOr)
{
bool bBool;
if (!StoryVar.TryConvertTo <bool>(b, out bBool))
{
return(false);
}
switch (op)
{
case Operator.LogicalAnd:
result = a && bBool; break;
case Operator.LogicalOr:
result = a || bBool; break;
default:
break;
}
return(true);
}
double aDouble;
return(ConvertTo <double>(a, out aDouble) && StoryVar.GetTypeService <double>(true).Combine(op, aDouble, b, out result));
}
// ............................
public override bool Compare(Operator op, double a, object b, out bool result)
{
result = false;
double bDouble;
if (!StoryVar.TryConvertTo <double>(b, out bDouble))
{
return(false);
}
switch (op)
{
case Operator.Equals:
result = a == bDouble; break;
case Operator.GreaterThan:
result = a > bDouble; break;
case Operator.GreaterThanOrEquals:
result = a >= bDouble; break;
case Operator.LessThan:
result = a < bDouble; break;
case Operator.LessThanOrEquals:
result = a <= bDouble; break;
default:
return(false); // comparison not possible
}
return(true);
}
public StoryVar GetMember(StoryVar member)
{
if (Value == null)
{
throw new VarTypeMemberException("Cannot get members of an empty story variable.");
}
if (member.Value == null)
{
throw new VarTypeMemberException("Cannot treat an empty variable as a member.");
}
IVarTypeService service = GetTypeService(this.Value.GetType());
if (service != null)
{
return(service.GetMember(this.Value, member));
}
if (this.Value is IVarType)
{
return(((IVarType)this.Value).GetMember(member));
}
throw new VarTypeMemberException(string.Format("Cannot get member of a story variable of type {0}.", this.Value.GetType().Name));
}
public override bool Combine(Operator op, int a, object b, out StoryVar result)
{
result = default(StoryVar);
// Logical operators, treat as bool
if (op == Operator.LogicalAnd || op == Operator.LogicalOr)
{
bool aBool;
return(ConvertTo <bool>(a, out aBool) && StoryVar.GetTypeService <bool>(true).Combine(op, aBool, b, out result));
}
// Always use double combinations
double aDouble;
if (!ConvertTo <double>(a, out aDouble) || !StoryVar.GetTypeService <double>(true).Combine(op, aDouble, b, out result))
{
return(false);
}
// Convert result back to int if it is whole number (or close to it in precision)
double resultDouble = (double)result.Value;
if (Math.Round(resultDouble) == Math.Round(resultDouble, DecimalPrecision))
{
result.Value = Convert.ToInt32(resultDouble);
}
return(true);
}
public override bool Combine(Operator op, string a, object b, out StoryVar result)
{
result = default(StoryVar);
// Logical operators, treat as bool
if (op == Operator.LogicalAnd || op == Operator.LogicalOr)
{
bool aBool;
return(ConvertTo <bool>(a, out aBool) && StoryVar.GetTypeService <bool>(true).Combine(op, aBool, b, out result));
}
// To comply with Javascript comparison, concat if b is a string
if (op == Operator.Add && b is string)
{
result = a + (string)b;
return(true);
}
// For other operators, try numeric comabinations if possible (in strict mode this won't work)
double aDouble;
if (ConvertTo <double>(a, out aDouble))
{
return(StoryVar.GetTypeService <double>(true).Combine(op, aDouble, b, out result));
}
else
{
return(false);
}
}
string PrintInv()
{
var str = "";
items = twinePlayer.Story.Vars["inv"];
if (items["NOTE"] == true)
{
str += "\nNOTE";
}
if (items["COAT"] == true)
{
str += "\nCOAT";
}
if (items["GUN"] == true)
{
str += "\nGUN";
}
if (items["FOB"] == true)
{
str += "\nFOB";
}
if (items["CURE"] == true)
{
str += "\nCURE";
}
return(str);
}
public StoryStyle(StoryVar booleanExpression)
{
// When giving a single value
if (booleanExpression.ConvertValueTo <bool>())
{
this[EvaluatedValContextOption] = booleanExpression;
}
}
// ............................
public override bool Compare(Operator op, int a, object b, out bool result)
{
// Always use double comparison
result = false;
double aDouble;
return(ConvertTo(a, out aDouble) && StoryVar.GetTypeService <double>(true).Compare(op, aDouble, b, out result));
}
public override bool Unary(Operator op, bool a, out StoryVar result)
{
result = default(StoryVar);
double aDouble;
return(ConvertTo <double>(a, out aDouble) && StoryVar.GetTypeService <double>(true).Unary(op, aDouble, out result));
}
public Story()
{
StoryVar.RegisterTypeService <bool>(new BoolService());
StoryVar.RegisterTypeService <int>(new IntService());
StoryVar.RegisterTypeService <double>(new DoubleService());
StoryVar.RegisterTypeService <string>(new StringService());
this.Passages = new Dictionary <string, StoryPassage>();
this.PassageHistory = new List <string>();
}
// ..............
// MEMBERS
public StoryVar this[StoryVar memberName]
{
get
{
return(GetMember(memberName));
}
set
{
SetMember(memberName, value);
}
}
// ............................
public override bool Compare(Operator op, string a, object b, out bool result)
{
result = false;
// Logical operators, treat as bool
if (op == Operator.LogicalAnd || op == Operator.LogicalOr)
{
bool aBool;
return(ConvertTo <bool>(a, out aBool) && StoryVar.GetTypeService <bool>(true).Compare(op, aBool, b, out result));
}
// Try numeric comparison (in strict mode this won't work)
double aDouble;
if (ConvertTo <double>(a, out aDouble) && StoryVar.GetTypeService <double>(true).Compare(op, aDouble, b, out result))
{
return(true);
}
string bString;
if (!StoryVar.TryConvertTo <string>(b, out bString))
{
return(false);
}
switch (op)
{
case Operator.Equals:
result = a == bString; break;
case Operator.GreaterThan:
result = String.Compare(a, bString) > 0; break;
case Operator.GreaterThanOrEquals:
result = String.Compare(a, bString) >= 0; break;
case Operator.LessThan:
result = String.Compare(a, bString) < 0; break;
case Operator.LessThanOrEquals:
result = String.Compare(a, bString) <= 0; break;
case Operator.Contains:
result = a.Contains(bString); break;
default:
return(false);
}
return(true);
}
public override bool Unary(Operator op, string a, out StoryVar result)
{
result = default(StoryVar);
// Try numeric unary if possible (in strict mode this won't work)
double aDouble;
if (ConvertTo(a, out aDouble))
{
return(StoryVar.GetTypeService <double>(true).Unary(op, aDouble, out result));
}
else
{
return(false);
}
}
public override bool Unary(Operator op, double a, out StoryVar result)
{
result = default(StoryVar);
switch (op)
{
case Operator.Increment:
result = ++a; break;
case Operator.Decrement:
result = --a; break;
default:
return(false);
}
return(true);
}
public override bool Combine(Operator op, object b, out StoryVar result)
{
result = default(StoryVar);
if (!(b is StoryStyle) || op != Operator.Add)
{
return(false);
}
var bStyle = (StoryStyle)b;
var combined = this.GetCopy();
foreach (var entry in bStyle._settings)
{
combined[entry.Key] = entry.Value;
}
result = combined;
return(true);
}
public override bool Combine(Operator op, double a, object b, out StoryVar result)
{
result = default(StoryVar);
// Logical operators, treat as bool
if (op == Operator.LogicalAnd || op == Operator.LogicalOr)
{
bool aBool;
return(ConvertTo <bool>(a, out aBool) && StoryVar.GetTypeService <bool>(true).Combine(op, aBool, b, out result));
}
double bDouble;
if (!StoryVar.TryConvertTo <double>(b, out bDouble))
{
return(false);
}
switch (op)
{
case Operator.Add:
result = a + bDouble; break;
case Operator.Subtract:
result = a - bDouble; break;
case Operator.Multiply:
result = a * bDouble; break;
case Operator.Divide:
result = a / bDouble; break;
case Operator.Modulo:
result = a % bDouble; break;
default:
return(false); // combination not possible
}
return(true);
}
public static bool TryCombine(Operator op, object left, object right, out StoryVar result)
{
object a = GetInnerValue(left);
object b = GetInnerValue(right);
if (a != null || b != null)
{
IVarTypeService service;
if (a == null && b != null)
{
// Handle uninitialized left operand - use the right operand's type to convert (fix for issue #39)
object aConverted;
if (
_typeServices.TryGetValue(b.GetType(), out service) &&
service.ConvertFrom(a, out aConverted, StoryVar.StrictMode) &&
service.Combine(op, aConverted, b, out result)
)
{
return(true);
}
}
// Handle other combinations
else if (a != null && _typeServices.TryGetValue(a.GetType(), out service) && service.Combine(op, a, b, out result))
{
return(true);
}
}
// No type service managed to covert so try the var type method directly, if available
if (a is IVarType)
{
if ((a as IVarType).Combine(op, b, out result))
{
return(true);
}
}
result = default(StoryVar);
return(false);
}
public override bool Unary(Operator op, int a, out StoryVar result)
{
result = default(StoryVar);
// Always use double operations
double aDouble;
if (!ConvertTo(a, out aDouble) || !StoryVar.GetTypeService <double>(true).Unary(op, aDouble, out result))
{
return(false);
}
// Convert result back to int if it is whole number (or close to it in precision)
double resultDouble = (double)result.Value;
if (Math.Round(resultDouble) == Math.Round(resultDouble, DecimalPrecision))
{
result.Value = Convert.ToInt32(resultDouble);
}
return(true);
}
// ............................
public override bool Compare(Operator op, bool a, object b, out bool result)
{
result = false;
if (op == Operator.Equals)
{
// Equaliy, evaluate as bools
bool bBool;
if (!StoryVar.TryConvertTo <bool>(b, out bBool))
{
return(false);
}
result = a == bBool;
return(true);
}
else
{
// Evaluate as numbers for other operators
double aDouble;
return(ConvertTo <double>(a, out aDouble) && StoryVar.GetTypeService <double>(true).Compare(op, aDouble, b, out result));
}
}
public static bool TryCombine(Operator op, object left, object right, out StoryVar result)
{
object a = GetInnerValue(left);
object b = GetInnerValue(right);
IVarTypeService service;
if (a != null && _typeServices.TryGetValue(a.GetType(), out service) && service.Combine(op, a, b, out result))
{
return(true);
}
if (a is IVarType)
{
if ((a as IVarType).Combine(op, b, out result))
{
return(true);
}
}
result = default(StoryVar);
return(false);
}
public void RemoveMember(StoryVar member)
{
if (Value == null)
{
throw new VarTypeMemberException("Cannot remove member of empty story variable.");
}
IVarTypeService service = GetTypeService(this.Value.GetType());
if (service != null)
{
service.RemoveMember(this.Value, member);
return;
}
if (this.Value is IVarType)
{
((IVarType)this.Value).RemoveMember(member);
return;
}
throw new VarTypeMemberException(string.Format("Cannot remove member of a story variable of type {0}.", this.Value.GetType().Name));
}
public override StoryVar GetMember(string container, StoryVar member)
{
string containerString = (string)container;
StoryVar value;
int pos;
if (StoryVar.TryConvertTo <int>(member, out pos))
{
value = containerString[pos];
}
else if (member.ToString() == "length")
{
value = containerString.Length;
}
else
{
value = default(StoryVar);
}
return(value);
}
// Use this for initialization
void Start()
{
twinePlayer = Object.FindObjectOfType <TextrisTwinePlayer>();
links = twinePlayer.Story.GetCurrentLinks();
items = twinePlayer.Story.Vars["inv"];
}
bool IVarTypeService.Unary(Operator op, object a, out StoryVar result)
{
return(Unary(op, (T)a, out result));
}
bool IVarTypeService.Combine(Operator op, object a, object b, out StoryVar result)
{
return(Combine(op, (T)a, b, out result));
}
public abstract bool Unary(Operator op, T a, out StoryVar result);
public abstract bool Combine(Operator op, T a, object b, out StoryVar result);
public abstract void RemoveMember(T container, StoryVar member);
public abstract void SetMember(T container, StoryVar member, StoryVar value);
public abstract StoryVar GetMember(T container, StoryVar member);