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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| package com.bernd.game; | ||
|
|
||
| import com.bernd.model.GameMove; | ||
| import com.bernd.model.Move; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
|
|
||
| import static com.bernd.util.Util.divUp; | ||
|
|
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| public final class MoveList { | ||
|
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| private static final int LO = 0xffff; | ||
| private static final int HI = 0xffff0000; | ||
| private static final int WHITE = 0x1000; | ||
| private static final int PASS = 0x2000; | ||
| private static final int DATA = 0x0fff; | ||
|
|
||
| public static void main(String[] args) { | ||
| int n = 1024 * 4; | ||
| System.out.printf("%x\n", n); | ||
| System.out.println(n); | ||
| System.out.printf("%x\n", 2 * n); | ||
| System.out.println(2 * n); | ||
| } | ||
|
|
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| private int pos; | ||
| private int capacity; | ||
| private final int dim; | ||
| private int[] buffer; | ||
|
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| private MoveList( | ||
| int dim, | ||
| int[] buffer) { | ||
| this.capacity = dim * dim; | ||
| this.dim = dim; | ||
| this.buffer = buffer; | ||
| } | ||
|
|
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| public static MoveList create(int dim, int size) { | ||
| return new MoveList(dim, new int[divUp(size, 2)]); | ||
| } | ||
|
|
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| public static MoveList create(int dim) { | ||
| return new MoveList(dim, new int[16]); | ||
| } | ||
|
|
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| public void add(int color, Move move) { | ||
| if (pos >= capacity) { | ||
| int newCapacity = 2 * capacity; | ||
| buffer = Arrays.copyOf(buffer, divUp(newCapacity, 2)); | ||
| capacity = newCapacity; | ||
| } | ||
| int ptId; | ||
| if (move.pass()) { | ||
| ptId = PASS; | ||
| } else { | ||
| ptId = dim * move.y() + move.x(); | ||
| } | ||
| if (color == Board.W) { | ||
| ptId |= WHITE; | ||
| } | ||
| set(ptId); | ||
| pos++; | ||
| } | ||
|
|
||
| public GameMove get(int i) { | ||
| int code = buffer[i / 2]; | ||
| int ptId = i % 2 == 0 ? code & LO : (code >> 16); | ||
| int color = (ptId & WHITE) != 0 ? Board.W : Board.B; | ||
| if ((ptId & PASS) != 0) { | ||
| return new GameMove(i, color, true, -1, -1); | ||
| } else { | ||
| int data = ptId & DATA; | ||
| int x = data % dim; | ||
| int y = data / dim; | ||
| return new GameMove(i, color, true, x, y); | ||
| } | ||
| } | ||
|
|
||
| private void set(int ptId) { | ||
| int i = pos / 2; | ||
| if (pos % 2 == 0) { | ||
| buffer[i] = (buffer[i] & HI) | ptId; | ||
| } else { | ||
| buffer[i] = (ptId << 16) | (buffer[i] & LO); | ||
| } | ||
| } | ||
|
|
||
| public int size() { | ||
| return pos; | ||
| } | ||
|
|
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| public List<GameMove> asList() { | ||
| List<GameMove> result = new ArrayList<>(size()); | ||
| for (int i = 0; i < pos; i++) { | ||
| result.add(get(i)); | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| public int dim() { | ||
| return dim; | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() { | ||
| if (pos == 0) { | ||
| return "[]"; | ||
| } | ||
| StringBuilder sb = new StringBuilder("["); | ||
| for (int i = 0; i < pos; i++) { | ||
| sb.append("(") | ||
| .append(get(i)) | ||
| .append("), "); | ||
| } | ||
| sb.setLength(sb.length() - 2); | ||
| sb.append("]"); | ||
| return sb.toString(); | ||
| } | ||
| } |
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