public static void SkipEmptyTiles(EngineParserState state)
{
while (!state.Position.IsFinished && state[state.Position].Type == EngineGlyphType.Nothing)
{
state.Position.MoveForward();
}
}
public static void PerformOperation(EngineParserState state)
{
switch (state.LastOperator)
{
case EngineOperatorType.NoOperator:
state.LastNumberGroup = state.CurrentNumberGroup;
break;
case EngineOperatorType.Addition:
state.LastNumberGroup += state.CurrentNumberGroup;
break;
case EngineOperatorType.Subtraction:
state.LastNumberGroup -= state.CurrentNumberGroup;
break;
case EngineOperatorType.Multiplication:
state.LastNumberGroup *= state.CurrentNumberGroup;
break;
case EngineOperatorType.Division:
state.LastNumberGroup = (int)Math.Floor((double)state.LastNumberGroup / state.CurrentNumberGroup);
break;
default:
throw new ArgumentOutOfRangeException();
}
state.CurrentNumberGroup = 0;
state.LastOperator = EngineOperatorType.NoOperator;
}
public static EngineTile Raycast(EngineParserState state, ParserPosition startPosition, EngineDirection direction)
{
var currentPosition = startPosition.Position;
currentPosition = new Point(currentPosition.X + direction.X, currentPosition.Y + direction.Y);
while (state.IsValidPosition(currentPosition))
{
var tile = state[currentPosition];
if (tile.Type != EngineGlyphType.Nothing)
{
return(tile);
}
currentPosition = new Point(currentPosition.X + direction.X, currentPosition.Y + direction.Y);
}
return(null);
}
public EngineParser(EngineTile[,] tiles)
{
Tiles = CloneTiles(tiles);
_state = new EngineParserState(this, Tiles);
_tileParsers = new Dictionary <EngineGlyphType, Action <EngineParserState, EngineTile> > {
{ EngineGlyphType.Nothing, StateParser_Nothing.ParseTile },
{ EngineGlyphType.ActionMoveN, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveNE, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveE, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveSE, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveS, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveSW, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveW, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionMoveNW, StateParser_Action.ParseTile },
{ EngineGlyphType.ActionSpecial, StateParser_Action.ParseTile },
{ EngineGlyphType.NumeralOne, StateParser_Numeral.ParseTile },
{ EngineGlyphType.NumeralTwo, StateParser_Numeral.ParseTile },
{ EngineGlyphType.NumeralFour, StateParser_Numeral.ParseTile },
{ EngineGlyphType.NumeralEight, StateParser_Numeral.ParseTile },
{ EngineGlyphType.OperationMultiplier, StateParser_Multiply.ParseTile },
{ EngineGlyphType.OperationSubtract, StateParser_Subtract.ParseTile },
{ EngineGlyphType.ModifierInvert, StateParser_Invert.ParseTile },
{ EngineGlyphType.ModifierIgnore, StateParser_Ignore.ParseTile },
{ EngineGlyphType.SpecialCameleonN, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonNE, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonE, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonSE, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonS, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonSW, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonW, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.SpecialCameleonNW, StateParser_Cameleon.ParseTile },
{ EngineGlyphType.Bomb, StateParser_Bomb.ParseTile },
{ EngineGlyphType.SlicerStart, StateParser_Slicer.ParseTile },
{ EngineGlyphType.SlicerEnd, StateParser_Slicer.ParseTile }
};
}
