public static void Setup(
GameControlsState controlsState,
eCellType[] fieldMatrix,
Position head,
Position tail,
ref eDirectionType currentDirection,
int randomValue,
ref eGameMode gameMode,
ref byte baseColor)
{
// seed initial state
FieldMatrix.Seed(fieldMatrix, head, tail);
currentDirection = eDirectionType.None;
switch (controlsState.keyCode)
{
case KeypadKeyCode.GO:
FieldMatrix.PlaceNextPiece(fieldMatrix, randomValue);
gameMode = eGameMode.Play;
break;
case KeypadKeyCode.D2:
baseColor = (byte)(baseColor < 10 ? baseColor + 1 : baseColor);
break;
case KeypadKeyCode.D8:
baseColor = (byte)(baseColor > 1 ? baseColor - 1 : baseColor);
break;
}
}
public static void GameIteration(
GameControlsState controlsState,
eCellType[] fieldMatrix,
Position head,
Position tail,
ref eDirectionType currentDirection,
int randomValue,
FPGA.Signal <bool> TXD)
{
eDirectionType nextDirectionFromKeypad = eDirectionType.None;
eDirectionType nextDirectionFromJoystick = eDirectionType.None;
eDirectionType nextDirection = eDirectionType.None;
Lookups.KeyCodeToDirection(
controlsState.keyCode,
ref nextDirectionFromKeypad);
Lookups.JoystickPositionToDirection(
controlsState.adcChannel1,
controlsState.adcChannel2,
ref nextDirectionFromJoystick);
bool isReverse = false;
Lookups.IsReverse(currentDirection, nextDirection, ref isReverse);
// TODO: variable declaration from conditional expression;
nextDirection = isReverse
? currentDirection
: nextDirectionFromKeypad != eDirectionType.None
? nextDirectionFromKeypad
: nextDirectionFromJoystick != eDirectionType.None
? nextDirectionFromJoystick
: currentDirection;
Diagnostics.ReportState(
controlsState,
nextDirectionFromKeypad,
nextDirectionFromJoystick,
nextDirection,
TXD);
bool expanded = false;
ApplyChange(
fieldMatrix,
head,
tail,
currentDirection, nextDirection,
out expanded);
if (expanded)
{
FieldMatrix.PlaceNextPiece(fieldMatrix, randomValue);
}
currentDirection = nextDirection;
}
public static async Task Aggregator(
// blinker
FPGA.OutputSignal <bool> LED1,
// keypad
FPGA.OutputSignal <bool> K7,
FPGA.OutputSignal <bool> K6,
FPGA.OutputSignal <bool> K5,
FPGA.OutputSignal <bool> K4,
FPGA.InputSignal <bool> K3,
FPGA.InputSignal <bool> K2,
FPGA.InputSignal <bool> K1,
FPGA.InputSignal <bool> K0,
// banks
FPGA.OutputSignal <bool> Bank1,
FPGA.OutputSignal <bool> Bank2,
// WS2812
FPGA.OutputSignal <bool> DOUT,
// ADC
FPGA.OutputSignal <bool> ADC1NCS,
FPGA.OutputSignal <bool> ADC1SLCK,
FPGA.OutputSignal <bool> ADC1DIN,
FPGA.InputSignal <bool> ADC1DOUT,
// UART
FPGA.InputSignal <bool> RXD,
FPGA.OutputSignal <bool> TXD
)
{
QuokkaBoard.OutputBank(Bank1);
QuokkaBoard.InputBank(Bank2);
GameControlsState controlsState = new GameControlsState();
IsAlive.Blink(LED1);
Peripherals.GameControls(
ADC1NCS, ADC1SLCK, ADC1DIN, ADC1DOUT,
K7, K6, K5, K4, K3, K2, K1, K0,
controlsState);
SnakeControl(
controlsState,
DOUT, TXD);
}
public static void MakeRandomValue(
GameControlsState controlsState,
FPGA.Register <int> randomValue)
{
FPGA.Register <byte> tickCounter = 0;
Func <byte> nextTickCounter = () => (byte)(tickCounter + 1);
Func <bool> tickCounterWE = () => controlsState.keyCode != Drivers.KeypadKeyCode.None;
FPGA.Config.RegisterOverride(tickCounter, nextTickCounter, tickCounterWE);
FPGA.Register <bool> randomCounterWE = true;
Func <int> nextRandomCounter = () => tickCounter + randomValue + controlsState.adcChannel1 + controlsState.adcChannel2;
FPGA.Config.RegisterOverride(randomValue, nextRandomCounter, randomCounterWE);
}
public static void GameControls(
// ADC
FPGA.OutputSignal <bool> ADC1NCS,
FPGA.OutputSignal <bool> ADC1SLCK,
FPGA.OutputSignal <bool> ADC1DIN,
FPGA.InputSignal <bool> ADC1DOUT,
// keypad
FPGA.OutputSignal <bool> K7,
FPGA.OutputSignal <bool> K6,
FPGA.OutputSignal <bool> K5,
FPGA.OutputSignal <bool> K4,
FPGA.InputSignal <bool> K3,
FPGA.InputSignal <bool> K2,
FPGA.InputSignal <bool> K1,
FPGA.InputSignal <bool> K0,
GameControlsState controlsState)
{
KeypadKeyCode internalCode = 0;
FPGA.Config.Link(internalCode, out controlsState.keyCode);
ushort adcChannel1Value = 32767, adcChannel2Value = 32767;
FPGA.Config.Link(adcChannel1Value, controlsState.adcChannel1);
FPGA.Config.Link(adcChannel2Value, controlsState.adcChannel2);
Sequential keypadHandler = () =>
{
Keypad4x4.ReadASCIICode(K7, K6, K5, K4, K3, K2, K1, K0, out internalCode);
};
FPGA.Config.OnTimer(TimeSpan.FromMilliseconds(20), keypadHandler);
Sequential joystickHandler = () =>
{
ADC102S021.Read(out adcChannel1Value, out adcChannel2Value, ADC1NCS, ADC1SLCK, ADC1DIN, ADC1DOUT);
};
const bool trigger = true;
FPGA.Config.OnSignal(trigger, joystickHandler);
}
public static void ReportState(
GameControlsState controlsState,
eDirectionType nextDirectionFromKeypad,
eDirectionType nextDirectionFromJoystick,
eDirectionType nextDirection,
FPGA.Signal <bool> TXD
)
{
SnakeDBG dbg = new SnakeDBG();
dbg.C1 = controlsState.adcChannel1;
dbg.C2 = controlsState.adcChannel2;
dbg.KD = nextDirectionFromKeypad;
dbg.JD = nextDirectionFromJoystick;
dbg.ND = nextDirection;
JSON.SerializeToUART(ref dbg, TXD);
}
public static void SnakeControl(
GameControlsState controlsState,
FPGA.OutputSignal <bool> DOUT,
FPGA.OutputSignal <bool> TXD)
{
bool internalDOUT = false;
FPGA.Config.Link(internalDOUT, DOUT);
FPGA.Register <int> randomValue = 0;
RandomValueGenerator.MakeRandomValue(controlsState, randomValue);
eCellType[] fieldMatrix = new eCellType[64];
var head = new Position();
var tail = new Position();
eDirectionType currentDirection = eDirectionType.None;
byte baseColor = 0x1;
eGameMode gameMode = eGameMode.Setup;
// drawing
Sequential drawHandler = () =>
{
try
{
switch (gameMode)
{
case eGameMode.Setup:
{
GameEngine.Setup(
controlsState,
fieldMatrix,
head,
tail,
ref currentDirection,
randomValue,
ref gameMode,
ref baseColor);
}
break;
case eGameMode.Play:
{
GameEngine.GameIteration(
controlsState,
fieldMatrix,
head,
tail,
ref currentDirection,
randomValue,
TXD);
}
break;
default:
if (controlsState.keyCode == Drivers.KeypadKeyCode.PWR)
{
gameMode = eGameMode.Setup;
}
break;
}
}
catch (GameCompletedException)
{
FieldMatrix.DrawCross(fieldMatrix, eCellType.GreenCross);
gameMode = eGameMode.Completed;
}
catch (Exception)
{
FieldMatrix.DrawCross(fieldMatrix, eCellType.RedCross);
gameMode = eGameMode.Failed;
}
Graphics.DrawFieldMatrix(baseColor, fieldMatrix, out internalDOUT);
};
FPGA.Config.OnTimer(TimeSpan.FromMilliseconds(400), drawHandler);
}
public static async Task Aggregator(
// banks
FPGA.OutputSignal <bool> Bank1,
FPGA.OutputSignal <bool> Bank2,
// blinker
FPGA.OutputSignal <bool> LED1,
FPGA.OutputSignal <bool> LED2,
FPGA.OutputSignal <bool> LED3,
FPGA.OutputSignal <bool> LED4,
// WS2812
FPGA.OutputSignal <bool> DOUT,
// keypad
FPGA.OutputSignal <bool> K7,
FPGA.OutputSignal <bool> K6,
FPGA.OutputSignal <bool> K5,
FPGA.OutputSignal <bool> K4,
FPGA.InputSignal <bool> K3,
FPGA.InputSignal <bool> K2,
FPGA.InputSignal <bool> K1,
FPGA.InputSignal <bool> K0,
// ADC
FPGA.OutputSignal <bool> ADC1NCS,
FPGA.OutputSignal <bool> ADC1SLCK,
FPGA.OutputSignal <bool> ADC1DIN,
FPGA.InputSignal <bool> ADC1DOUT,
// UART
FPGA.InputSignal <bool> RXD,
FPGA.OutputSignal <bool> TXD
)
{
QuokkaBoard.OutputBank(Bank1);
QuokkaBoard.InputBank(Bank2);
GameControlsState controlsState = new GameControlsState();
IsAlive.Blink(LED1);
IsAlive.Blink(LED2);
IsAlive.Blink(LED3);
IsAlive.Blink(LED4);
Peripherals.GameControls(
ADC1NCS, ADC1SLCK, ADC1DIN, ADC1DOUT,
K7, K6, K5, K4, K3, K2, K1, K0,
controlsState);
LEDControl(controlsState.keyCode, DOUT);
byte data = 0;
Sequential handler = () =>
{
UART.Write(115200, data, TXD);
data++;
};
FPGA.Config.OnTimer(TimeSpan.FromSeconds(1), handler);
}