public Instruction(VirtualMachine machine)
{
_machine = machine;
Left = new Operand(machine);
Right = new Operand(machine);
}
public void HandleInterrupt(VirtualMachine machine)
{
switch (machine.Registers[0])
{
case 0: // get status
machine.Registers[0] = _sendTimer == 0 ? 1 : 0;
break;
case 1: // set packet pointer
_packetPointer = machine.Registers[1];
break;
case 2: // send packet
if (_sendTimer != 0)
break;
_sendTimer = PacketSendCooldown;
var data = new byte[PacketSize];
for (var i = 0; i < data.Length; i++)
{
data[i] = machine.Memory[machine.Registers[1] + i];
}
foreach (var c in _parent.State.Entities.Iterate().OfType<Computer>())
{
if (c == _parent)
continue;
c.Broadcast.Enqueue(_parent, data);
}
break;
}
}
public static void Main(string[] args)
{
Window = new RenderWindow(new VideoMode(640, 480), "", Styles.Close);
Window.SetFramerateLimit(60);
Window.Closed += (sender, eventArgs) => Window.Close();
Window.Resized += (sender, eventArgs) =>
{
var view = new View();
view.Size = new Vector2f(eventArgs.Width, eventArgs.Height);
view.Center = view.Size / 2;
Window.SetView(view);
};
Machine = new VirtualMachine(512 * 1024);
var prog = File.ReadAllBytes("bios.bin");
for (var i = 0; i < prog.Length; i++)
Machine.Memory[i] = prog[i];
var kbd = new Devices.Keyboard(0x02, Window);
Machine.Attach(kbd);
var display = new Devices.Display(0x06, Machine, Window);
Machine.Attach(display);
var hdd = new Devices.HardDrive(0x08, "disk.img");
Machine.Attach(hdd);
var running = true;
var stepThread = new Thread(() =>
{
while (running)
{
Machine.Step();
}
});
stepThread.Start();
while (Window.IsOpen())
{
Window.DispatchEvents();
Window.Clear();
Window.Draw(display);
Window.Display();
}
running = false;
stepThread.Join();
Machine.Dispose();
}
public void HandleInterrupt(VirtualMachine machine)
{
switch (machine.Registers[0])
{
case 0: // enable
_enabled = machine.Registers[1] != 0;
break;
case 1: // set frequency
_updateEvery = Program.InstructionsPerSecond / Util.Clamp(machine.Registers[1], 1, 1000);
break;
}
}
public void HandleInterrupt(VirtualMachine machine)
{
switch (machine.Registers[0])
{
case 0: // set thruster speed
Thruster = Util.Clamp(machine.Registers[1] / 100f, -1, 1) * -1;
break;
case 1: // set angular thrusters
AngularThruster = Util.Clamp(machine.Registers[1] / 100f, -1, 1);
break;
}
}
public void HandleInterrupt(VirtualMachine machine)
{
switch (machine.Registers[0])
{
case 0: // get coordinates
machine.Registers[0] = (int)(_body.Position.X * Program.PixelsPerMeter);
machine.Registers[1] = (int)(_body.Position.Y * Program.PixelsPerMeter);
break;
case 1: // get speed
machine.Registers[0] = (int)(_body.LinearVelocity.X * Program.PixelsPerMeter);
machine.Registers[1] = (int)(_body.LinearVelocity.Y * Program.PixelsPerMeter);
break;
case 2: // get angular speed
machine.Registers[0] = (int)(_body.AngularVelocity * ((Program.RadarRays / 2) / Math.PI));
break;
case 3: // get heading
machine.Registers[0] = Util.ToMachineRotation(_body.Rotation - ((float)Math.PI / 2));
break;
}
}
public Operand(VirtualMachine machine)
{
_machine = machine;
}
public void HandleInterruptRequest(VirtualMachine machine)
{
}
public void Load(ShipCode code)
{
Vm = new VirtualMachine(4096);
Vm.Attach(new Timer());
Navigation = new Navigation(Body);
Vm.Attach(Navigation);
Radar = new Radar(this);
Vm.Attach(Radar);
Engines = new Engines();
Vm.Attach(Engines);
Guns = new Guns();
Vm.Attach(Guns);
Broadcast = new Broadcast(this);
Vm.Attach(Broadcast);
Code = code;
for (var i = 0; i < Code.Length; i++)
{
Vm.Memory[i] = Code[i];
}
var ptr = 8;
var varCount = Vm.Memory.ReadInt(ptr);
ptr += sizeof(int);
_variables.Clear();
for (var i = 0; i < varCount; i++)
{
var varAddr = ptr;
ptr += sizeof(int);
var varType = Vm.Memory.ReadSByte(ptr);
ptr += sizeof(sbyte);
_variables.Add(new Variable((VariableType)varType, varAddr));
}
_programLen = Code.Length;
_programOffset = ptr;
_programDead = false;
for (var i = 0; i < Vm.Registers.Length; i++)
{
Vm.Registers[i] = 0;
}
Vm.SP = Vm.Memory.Length;
}
public void HandleInterruptRequest(VirtualMachine machine)
{
var packet = _packetQueue.First(p => p.Delay <= 0);
_packetQueue.Remove(packet);
machine.Registers[0] = Util.ToMachineRotation(Util.Direction(_parent.Body.Position, packet.SenderPosition));
for (var i = 0; i < packet.Data.Length; i++)
{
machine.Memory[_packetPointer + i] = packet.Data[i];
}
}
public void HandleInterrupt(VirtualMachine machine)
{
_radarPointer = machine.Registers[0];
}
public void HandleInterruptRequest(VirtualMachine machine)
{
_timer -= UpdateEvery;
RayCast();
for (var i = 0; i < RadarData.Length; i++)
{
machine.Memory.WriteSByte(_radarPointer + (i * 3) + 0, (sbyte)RadarData[i].Type);
machine.Memory.WriteShort(_radarPointer + (i * 3) + 1, RadarData[i].Distance);
}
}
public void HandleInterrupt(VirtualMachine machine)
{
Shooting = machine.Registers[0] != 0;
}
public void HandleInterruptRequest(VirtualMachine machine)
{
_timer -= _updateEvery;
}
