com.nullpointergames.boardgames.chess.RuleFactory Maven / Gradle / Ivy
package com.nullpointergames.boardgames.chess;
import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.List;
import com.nullpointergames.boardgames.Board;
import com.nullpointergames.boardgames.NullRule;
import com.nullpointergames.boardgames.Position;
import com.nullpointergames.boardgames.Rule;
import com.nullpointergames.boardgames.chess.rules.BishopRule;
import com.nullpointergames.boardgames.chess.rules.KingRule;
import com.nullpointergames.boardgames.chess.rules.KnightRule;
import com.nullpointergames.boardgames.chess.rules.PawnRule;
import com.nullpointergames.boardgames.chess.rules.QueenRule;
import com.nullpointergames.boardgames.chess.rules.RookRule;
public class RuleFactory {
private static final List> RULES = Arrays.asList(
PawnRule.class,
KnightRule.class,
KingRule.class,
NullRule.class,
RookRule.class,
BishopRule.class,
QueenRule.class);
public static Rule getRule(Board board, Position from) {
for(Class aClass : RULES)
try {
Rule rule = aClass.
getDeclaredConstructor(Board.class, Position.class).
newInstance(board, from);
if(rule.pieceType() == board.getPiece(from).type())
return rule;
} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException | NoSuchMethodException | SecurityException e) {}
throw new RuntimeException();
}
}