/// <summary>
/// Adds a variable to the global directory.
/// Called when a new variable ID is read in global scope.
/// </summary>
/// <param name="newGlobalVariable"></param>
/// <returns>The variable address in the global directory where the variable was stored.</returns>
public static int AddGlobalVariable(Variable newGlobalVariable)
{
// retrieve the memory address where the variable will live
int memorySpace = GetNextAvailable(MemoryScope.global, newGlobalVariable.GetDataType());
// if memory space is insufficient, throw and exception
if (memorySpace == -1)
{
throw new Exception("Out of global memory");
}
// pass on the memory address meant for the variable
newGlobalVariable.SetMemoryAddress(memorySpace);
// try to add variable to global directory
try
{
FunctionDirectory.GlobalFunction().AddGlobalVariable(newGlobalVariable);
if (newGlobalVariable.GetDataType() == SemanticCubeUtilities.DataTypes.number)
{
try { memorySpace = SetMemory(memorySpace, 0); }
catch (Exception e) { throw new Exception(e.Message); }
}
else if (newGlobalVariable.GetDataType() == SemanticCubeUtilities.DataTypes.text)
{
try { memorySpace = SetMemory(memorySpace, ""); }
catch (Exception e) { throw new Exception(e.Message); }
}
else if (newGlobalVariable.GetDataType() == SemanticCubeUtilities.DataTypes.boolean)
{
try { memorySpace = SetMemory(memorySpace, false); }
catch (Exception e) { throw new Exception(e.Message); }
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return(memorySpace);
}
/// <summary>
/// Loads an asset into memory.
/// Called by <see cref="Parser"/> when an Asset is read.
/// </summary>
/// <param name="memoryAddress"></param>
/// <param name="asset"></param>
/// <returns>The memory address where the asset was set.</returns>
public static int SetAssetInMemory(Asset asset)
{
int memoryAddress = GetNextAssetAvailable();
if (memoryAddress == -1)
{
throw new Exception("Out of asset memory");
}
asset.SetMemoryAddress(memoryAddress);
// try to add asset to global asset directory
try
{
if (currentAssetAddress + Enum.GetNames(typeof(AssetAttributes)).Length <= highestAssetAddress)
{
FunctionDirectory.GlobalFunction().AddAssetVariable(asset);
// add attribute values to memory
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.id] = asset.GetID();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.x] = asset.GetX();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.y] = asset.GetY();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.width] = asset.GetWidth();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.height] = asset.GetHeight();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.rotation] = asset.GetRotation();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.number] = asset.GetNumber();
memoryGlobalAssets[memoryAddress + (int)AssetAttributes.label] = asset.GetLabel();
currentAssetAddress += Enum.GetNames(typeof(AssetAttributes)).Length;
}
return(memoryAddress);
}
catch (Exception)
{
throw;
}
}
