/// <summary>
/// Ticks the current thread by popping one instruction off the execution stack.
/// </summary>
public void Tick()
{
if (m_CurrentState != VThreadState.Sleeping && m_CurrentState != VThreadState.IdleForInput)
{
IFFDecode P = m_ExecutionStack.Pop();
int Op = P.Operand(0); //Operation code.
int Param1, Param2 = 0;
switch (Op)
{
case 0: //Sleep
m_SleepCounter = P.Operand(4);
m_LastState = m_CurrentState;
m_CurrentState = VThreadState.Sleeping;
HasBeenChecked = false;
break;
case 17: //Idle for input
Param1 = P.Operand(4);
Param2 = P.Operand(6);
if (Param2 != 0)
{
m_LastState = m_CurrentState;
m_CurrentState = VThreadState.IdleForInput;
HasBeenChecked = false;
}
else
{
if (m_CurrentState != VThreadState.Sleeping)
{
m_SleepCounter = Param1;
m_LastState = m_CurrentState;
m_CurrentState = VThreadState.Sleeping;
HasBeenChecked = false;
}
else
{
m_SleepCounter += Param1;
}
}
break;
}
}
else
{
if (m_SleepCounter != 0)
{
m_SleepCounter--;
}
else
{
m_CurrentState = m_LastState;
}
}
}
/// <summary>
/// Ticks the current thread by popping one instruction off the execution stack.
/// </summary>
public void Tick()
{
if (m_CurrentState != VThreadState.Sleeping && m_CurrentState != VThreadState.IdleForInput)
{
IFFDecode P = m_ExecutionStack.Pop();
int Op = P.Operand(0); //Operation code.
int Param1, Param2 = 0;
switch (Op)
{
case 0: //Sleep
m_SleepCounter = P.Operand(4);
m_LastState = m_CurrentState;
m_CurrentState = VThreadState.Sleeping;
HasBeenChecked = false;
break;
case 17: //Idle for input
Param1 = P.Operand(4);
Param2 = P.Operand(6);
if (Param2 != 0)
{
m_LastState = m_CurrentState;
m_CurrentState = VThreadState.IdleForInput;
HasBeenChecked = false;
}
else
{
if (m_CurrentState != VThreadState.Sleeping)
{
m_SleepCounter = Param1;
m_LastState = m_CurrentState;
m_CurrentState = VThreadState.Sleeping;
HasBeenChecked = false;
}
else
m_SleepCounter += Param1;
}
break;
}
}
else
{
if (m_SleepCounter != 0)
m_SleepCounter--;
else
m_CurrentState = m_LastState;
}
}
/// <summary>
/// Finds and runs the init() function in this object's container (IFF)
/// if the current object has one, or skips straight to the main function.
/// </summary>
private void RunInitFunction()
{
m_ExecutionStack = new Stack<IFFDecode>(m_CurrentObject.Master.InitialStackSize);
//Initialize the stack-size from the OBJD and check to see if the IFF has
//an OBJf with the same ID as the OBJD.
foreach (OBJf ObjFunctions in m_CurrentObject.ObjectContainer.OBJfs)
{
if (ObjFunctions.ID == m_CurrentObject.Master.ChunkID)
m_CurrentObjectFunctions = ObjFunctions;
}
if (m_CurrentObjectFunctions == null)
{
//OBJD doesn't link to an init function.
m_CurrentState = VThreadState.Main;
m_MainFuncID = m_CurrentObject.Master.MainFuncID;
foreach (BHAV Function in m_CurrentObject.ObjectContainer.BHAVs)
{
if (Function.ChunkID == m_CurrentObject.Master.MainFuncID)
m_CurrentFunction = Function;
}
if (m_CurrentObject.Master.InitialStackSize <= m_CurrentFunction.NumInstructions)
{
for (int i = m_CurrentObject.Master.InitialStackSize; i > 0; i--)
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
else
{
for (int i = m_CurrentFunction.NumInstructions; i > 0; i--)
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
}
else //An associated OBJF was found, which links to an init() function!
{
int GuardFuncID = m_CurrentObjectFunctions.FunctionIDs[0].GuardFuncID;
m_InitFuncID = m_CurrentObjectFunctions.FunctionIDs[0].FunctionID;
m_MainFuncID = m_CurrentObjectFunctions.FunctionIDs[1].FunctionID;
foreach (BHAV Function in m_CurrentObject.ObjectContainer.BHAVs)
{
if (Function.ChunkID == GuardFuncID)
{
m_CurrentFunction = Function;
break;
}
}
if (m_CurrentObject.Master.InitialStackSize <= m_CurrentFunction.NumInstructions)
{
for (int i = m_CurrentObject.Master.InitialStackSize; i > 0; i--)
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
else
{
for(int i = m_CurrentFunction.NumInstructions; i > 0; i--)
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
}
}
/// <summary>
/// Finds and runs the init() function in this object's container (IFF)
/// if the current object has one, or skips straight to the main function.
/// </summary>
private void RunInitFunction()
{
m_ExecutionStack = new Stack <IFFDecode>(m_CurrentObject.Master.InitialStackSize);
//Initialize the stack-size from the OBJD and check to see if the IFF has
//an OBJf with the same ID as the OBJD.
foreach (OBJf ObjFunctions in m_CurrentObject.ObjectContainer.OBJfs)
{
if (ObjFunctions.ID == m_CurrentObject.Master.ChunkID)
{
m_CurrentObjectFunctions = ObjFunctions;
}
}
if (m_CurrentObjectFunctions == null)
{
//OBJD doesn't link to an init function.
m_CurrentState = VThreadState.Main;
m_MainFuncID = m_CurrentObject.Master.MainFuncID;
foreach (BHAV Function in m_CurrentObject.ObjectContainer.BHAVs)
{
if (Function.ChunkID == m_CurrentObject.Master.MainFuncID)
{
m_CurrentFunction = Function;
}
}
if (m_CurrentObject.Master.InitialStackSize <= m_CurrentFunction.NumInstructions)
{
for (int i = m_CurrentObject.Master.InitialStackSize; i > 0; i--)
{
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
}
else
{
for (int i = m_CurrentFunction.NumInstructions; i > 0; i--)
{
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
}
}
else //An associated OBJF was found, which links to an init() function!
{
int GuardFuncID = m_CurrentObjectFunctions.FunctionIDs[0].GuardFuncID;
m_InitFuncID = m_CurrentObjectFunctions.FunctionIDs[0].FunctionID;
m_MainFuncID = m_CurrentObjectFunctions.FunctionIDs[1].FunctionID;
foreach (BHAV Function in m_CurrentObject.ObjectContainer.BHAVs)
{
if (Function.ChunkID == GuardFuncID)
{
m_CurrentFunction = Function;
break;
}
}
if (m_CurrentObject.Master.InitialStackSize <= m_CurrentFunction.NumInstructions)
{
for (int i = m_CurrentObject.Master.InitialStackSize; i > 0; i--)
{
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
}
else
{
for (int i = m_CurrentFunction.NumInstructions; i > 0; i--)
{
m_ExecutionStack.Push(new IFFDecode(m_CurrentFunction.Instructions[i]));
}
}
}
}