@Override
public String visitGameinit(@NotNull DiceGameParser.GameinitContext ctx) {
if (ctx.ASSN != null) {
return ctx.ASSN.accept(this) + "\n";
}
if (ctx.FROM != null && ctx.TO != null) {
return "self.min = " + ctx.FROM.getText() + "\nself.max = " + ctx.TO.getText();
}
if (ctx.FROM != null) {
return "self.min = " + ctx.FROM.getText() + "\nself.max = " + ctx.FROM.getText();
}
if (ctx.DICEINIT != null) {
StringBuilder result = new StringBuilder();
result.append("self.dices = [");
for (ParseTree diceInit : ctx.children) {
if (diceInit.getClass() == DiceGameParser.DiceinitContext.class) {
result.append(diceInit.accept(this) + ", ");
}
}
result.append("]\n");
return result.toString();
}
if (ctx.COND != null) {
return "def isRunning(self): return (" + ctx.COND.accept(this) + ")";
}
return "visitGameinit";
}
@Override
public String visitDiceobjects(@NotNull DiceGameParser.DiceobjectsContext ctx) {
if (ctx.ALL != null) {
return "self.dices";
}
if (ctx.LAST != null) {
String ret = "[";
for (ParseTree val : ctx.children) {
if (val.getClass() == DiceGameParser.DiceobjectContext.class) {
ret += val.accept(this) + ", ";
}
}
ret += "]";
return ret;
}
return "visitDiceobjects";
}
public static AstNode createAst(String program) {
ParseTree tree = createParseTree(program);
EKPVisitor<AstNode> visitor = new AstCreationVisitor();
return tree.accept(visitor);
}
@Override
public String visitGame(@NotNull DiceGameParser.GameContext ctx) {
String imports = "#!/usr/bin/env python\n# -*- coding: utf-8 -*-\nimport random\n\n";
StringBuilder playerClass = new StringBuilder();
playerClass.append("class Player:\n");
playerClass.append(
indent(
"def __str__(self): return self.name + ', ' + ', '.join(map(str, [value for key, value in self.__dict__.items() if key not in ['name']]))\n"));
StringBuilder playerInit = new StringBuilder();
playerInit.append("def __init__(self, name): ");
playerInit.append("self.name = name; ");
StringBuilder playerActive = new StringBuilder();
for (ParseTree init : ctx.children) {
if (init.getClass() == DiceGameParser.PlayerinitContext.class) {
if (((DiceGameParser.PlayerinitContext) init).ASSN != null) {
playerInit.append(init.accept(this) + "; ");
} else if (((DiceGameParser.PlayerinitContext) init).PLAYERACTIVECOND != null) {
playerActive.append("def isActive(self): ");
playerActive.append(init.accept(this) + "; ");
}
}
}
playerClass.append(indent(playerInit.toString()) + "\n");
playerClass.append(indent(playerActive.toString()) + "\n");
playerClass.append(indent("\n"));
StringBuilder diceClass = new StringBuilder();
diceClass.append("class Dice:\n");
diceClass.append(
indent(
"def __init__(self, name, faces): self.name = name; self.faces = faces; self.roll()"));
diceClass.append(indent("def roll(self): self.value = random.choice(self.faces)"));
diceClass.append(indent("def __str__(self): return self.name+': '+str(self.value)"));
diceClass.append(indent("\n"));
StringBuilder gameClass = new StringBuilder();
gameClass.append("class Game:\n");
gameClass.append(indent("# Static methods"));
gameClass.append(
indent(
"def status(self): return 'Status[name, ' + ', '.join([key for key, value in self.players[0].__dict__.items() if key not in ['name']]).lower()+']: '+' - '.join(map(str, self.players))"));
gameClass.append(
indent(
"def rightPlayer(self): return self.players[ (self.players.index(self.activePlayer) - 1) % self.playerCount]"));
gameClass.append(
indent(
"def leftPlayer(self): return self.players[ (self.players.index(self.activePlayer) + 1) % self.playerCount]"));
gameClass.append(indent("def playerNum (self, num): return self.players[num]"));
gameClass.append(indent("def rollDices(self): map(Dice.roll, self.dices)"));
gameClass.append(
indent(
"def sortDices(self, desc=False): self.dices = sorted(self.dices, key=lambda dice: dice.value, reverse=desc)"));
StringBuilder gameSetupMethod = new StringBuilder();
gameSetupMethod.append("def setup(self):\n");
gameSetupMethod.append(
indent("self.playerCount = int(raw_input('Enter number of players: '))"));
gameSetupMethod.append(
indent(
"if self.playerCount < self.min: print(self.name+' is made for more than '+str(self.min)+' players. Bring some friends ;-)'); exit()"));
gameSetupMethod.append(
indent(
"if self.playerCount > self.max: print(str(self.playerCount)+' players? Thats too much for '+self.name+'... Maximum: '+str(self.max)); exit()"));
gameSetupMethod.append(indent(""));
gameSetupMethod.append(
indent(
"for p in range(self.playerCount): name = raw_input('Enter name of player #'+str(p)+': '); self.players.append(Player(name))"));
gameSetupMethod.append(indent("self.activePlayer = self.players[0]"));
gameSetupMethod.append(indent("print('Game initialized '+self.status())"));
gameSetupMethod.append(indent(""));
gameClass.append(indent(gameSetupMethod.toString()));
StringBuilder gameInitMethod = new StringBuilder();
gameInitMethod.append("def __init__(self):\n");
gameInitMethod.append(indent("self.players = []"));
gameInitMethod.append(indent("# Dynamic inits"));
gameInitMethod.append(indent("self.name = '" + ctx.NAME.getText() + "'\n"));
gameInitMethod.append(indent(""));
boolean hasRunningCond = false;
for (ParseTree init : ctx.children) {
if (init.getClass() == DiceGameParser.GameinitContext.class) {
DiceGameParser.GameinitContext initCtx = (DiceGameParser.GameinitContext) init;
if (initCtx.COND != null) {
gameClass.append(indent(initCtx.accept(this)));
hasRunningCond = true;
} else {
gameInitMethod.append(indent(init.accept(this)));
}
}
}
if (!hasRunningCond) {
gameClass.append(indent("def isRunning(self): return True"));
}
gameClass.append(indent(gameInitMethod.toString()));
StringBuilder gameLoop = new StringBuilder();
gameLoop.append("while self.isRunning():\n");
gameLoop.append(indent("\nprint(self.status())"));
gameLoop.append(indent("print('\\n'+self.activePlayer.name+' ist dran.'),"));
gameLoop.append(indent(""));
for (ParseTree init : ctx.children) {
if (init.getClass() == DiceGameParser.ActionContext.class) {
DiceGameParser.ActionContext loopCtx = (DiceGameParser.ActionContext) init;
gameLoop.append(indent(loopCtx.accept(this)));
}
}
String gameLoopMethod = "def loop(self):\n" + indent(gameLoop.toString());
gameClass.append(indent(gameLoopMethod));
StringBuilder main = new StringBuilder();
main.append("\nif __name__ == '__main__':\n");
main.append(indent("game = Game()"));
main.append(indent("game.setup()"));
main.append(indent("game.loop()"));
main.append(indent("print('\\nSpiel beendet: '+game.status())"));
main.append(indent(ctx.GAMEEND.accept(this)));
return imports
+ playerClass.toString()
+ diceClass.toString()
+ gameClass.toString()
+ main.toString();
}
