// Public methods
///////////////////////////
public static Action Create(Ecs.Internals ecs, MethodInfo systemInfo)
{
var systemName = $"{systemInfo.DeclaringType}.{systemInfo.Name}";
var arguments = systemInfo.GetParameters()
.Select(p => GetArgumentData(ecs, p))
.ToArray();
if (arguments.Length == 0)
{
return(() => systemInfo.Invoke(null, null));
}
var resources = arguments
.Where(a => a.isResource)
.ToArray();
var components = arguments
.Where(a => !a.isResource)
.ToArray();
var src = default(string);
if (components.Length > 0)
{
src = ForEachSource(ecs, arguments, resources, components);
}
else
{
src = ResourceOnlySource(ecs, resources);
}
var asmGen = new AssemblyGenerator();
asmGen.ReferenceAssemblyByName("System");
asmGen.ReferenceAssemblyByName("System.Collections");
asmGen.ReferenceAssemblyByName("System.Reflection");
asmGen.ReferenceAssemblyContainingType(typeof(Ecs));
src = asmGen.Format(src);
var startTime = TimeNow();
var(assembly, errors) = asmGen.Generate(src);
if (errors != null)
{
var sb = new System.Text.StringBuilder();
sb.Append($"encountered error(s) compiling system runner for {systemName}");
foreach (var error in errors)
{
sb.Append($"\n {error.Replace("\n", "\n ")}");
}
var srcLines = src.Split("\n");
for (var i = 0; i < srcLines.Length; i++)
{
sb.Append($"\n{i+1}\t{srcLines[i]}");
}
throw new Exception(sb.ToString());
}
var runner = assembly.GetType("Runner");
var duration = TimeNow() - startTime;
Console.WriteLine($"generated system runner for {systemName} in {duration}ms:\n {src.Replace("\n", "\n ")}");
runner.GetMethod("Initialize").Invoke(null, new object[] { ecs, systemInfo });
return((Action)runner.GetMethod("Run").CreateDelegate(typeof(Action)));
}
static (Action, bool) Compile(string fileName)
{
var startTime = Time.Now();
var source = File.ReadAllText(fileName);
var asmGen = new AssemblyGenerator();
asmGen.ReferenceAssemblyByName("System.Collections");
asmGen.ReferenceAssemblyByName("System.Linq");
asmGen.ReferenceAssemblyContainingType(typeof(Program));
source = asmGen.Format(source);
var(assembly, errors) = asmGen.Generate(source);
if (errors != null)
{
Log.Error($"compilation error:\n{String.Join("\n", errors)}");
return(null, false);
}
var scriptType = assembly.GetType("Script");
var mainMethod = scriptType.GetMethod("Main", BindingFlags.NonPublic | BindingFlags.Static);
var run = (Action)mainMethod.CreateDelegate(typeof(Action));
var duration = Time.Now() - startTime;
Log.Info($"compiled script {fileName} in {duration:F2}s");
return(run, true);
}