public static void Clear()
{
if (GlobalStatus == Status.Processing)
{
Dbg.Err($"Attempting to clear the environment while the world is in {GlobalStatus} state; should not be {Status.Processing} state");
// but we'll do it anyway
}
ComponentDecDict.Clear();
ComponentIndexDict.Clear();
Entities.Clear();
PhaseEndActions.Clear();
Singletons = null;
ActiveSystem = null;
ActiveEntity = null;
GlobalStatus = Status.Uninitialized;
}
public static void Process(ProcessDec process)
{
if (GlobalStatus != Status.Idle)
{
Dbg.Err($"Trying to run process while the world is in {GlobalStatus} state; should be {Status.Idle} state");
}
GlobalStatus = Status.Processing;
foreach (var system in process.order)
{
try
{
ActiveSystem = system;
var executeMethod = system.type.GetMethod("Execute", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);
var methodParameters = executeMethod.GetParameters();
var activeParameters = new object[methodParameters.Length];
for (int i = 0; i < methodParameters.Length; ++i)
{
if (methodParameters[i].ParameterType == typeof(Ghi.Entity))
{
continue;
}
ComponentDec component = ComponentDecDict[methodParameters[i].ParameterType];
if (component != null && component.singleton)
{
if (system.permissions)
{
if (!system.accessibleSingletonsRO[component.index])
{
var err = $"{system}: Attempted to use singleton {component} without any permission";
Dbg.Err(err);
throw new PermissionException(err);
}
if (!system.accessibleSingletonsRW[component.index] && !methodParameters[i].Name.EndsWith("_ro"))
{
Dbg.Wrn($"{system}: Using read-only singleton {component} without \"_ro\" suffix");
}
}
activeParameters[i] = Singletons[component.index];
}
}
if (system.iterate.Count == 0)
{
// No-iteration pathway
try
{
executeMethod.Invoke(null, activeParameters);
}
catch (Exception e)
{
Dbg.Ex(e);
}
}
else
{
// Entity-iteration pathway
// Doing this once per run is silly, it should be precalculated
int[] requiredIndices = system.iterate.Keys.Select(comp => comp.index).OrderBy(x => x).ToArray();
foreach (var entity in List)
{
ActiveEntity = entity;
bool valid = true;
for (int k = 0; k < requiredIndices.Length; ++k)
{
if (entity.components[requiredIndices[k]] == null)
{
valid = false;
break;
}
}
if (!valid)
{
continue;
}
for (int i = 0; i < methodParameters.Length; ++i)
{
if (methodParameters[i].ParameterType == typeof(Entity))
{
activeParameters[i] = entity;
continue;
}
ComponentDec component = ComponentDecDict[methodParameters[i].ParameterType];
if (component != null && !component.singleton)
{
if (system.permissions)
{
var permission = system.iterate.TryGetValue(component);
if (permission == SystemDec.Permissions.None)
{
Dbg.Err($"{system}: Attempted to use component {component} without any permission");
}
if (permission == SystemDec.Permissions.ReadOnly && !methodParameters[i].Name.EndsWith("_ro"))
{
Dbg.Wrn($"{system}: Using read-only component {component} without \"_ro\" suffix");
}
}
activeParameters[i] = entity.components[component.index];
}
}
try
{
executeMethod.Invoke(null, activeParameters);
}
catch (Exception e)
{
Dbg.Ex(e);
}
}
ActiveEntity = null;
}
}
catch (Exception e)
{
Dbg.Ex(e);
}
}
// clean up everything, even the things that should have already been cleaned up, just in case
ActiveSystem = null;
ActiveEntity = null;
GlobalStatus = Status.Idle;
foreach (var action in PhaseEndActions)
{
action();
}
PhaseEndActions.Clear();
}