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326 lines
12 KiB
326 lines
12 KiB
using System; |
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namespace Reversi |
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{ |
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public class Board |
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{ |
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public static int Black; |
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public static int Empty; |
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public static int White; |
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private int blackCount; |
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private int whiteCount; |
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private int emptyCount; |
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private int blackFrontierCount; |
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private int whiteFrontierCount; |
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private int blackSafeCount; |
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private int whiteSafeCount; |
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private System.Int32[,] squares; |
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private System.Boolean[,] safeDiscs; |
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public int BlackCount { |
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} |
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public int WhiteCount { |
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} |
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public int EmptyCount { |
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} |
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public int BlackFrontierCount { |
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} |
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public int WhiteFrontierCount { |
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} |
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public int BlackSafeCount { |
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} |
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public int WhiteSafeCount { |
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} |
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public void SetForNewGame() |
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{ |
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for (int i = 0; i < 8; i = i + 1) { |
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for (int j = 0; j < 8; j = j + 1) { |
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squares.Set(i, j, IL__ldsfld(Empty)); |
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safeDiscs.Set(i, j, 0); |
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} |
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} |
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squares.Set(3, 3, IL__ldsfld(White)); |
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squares.Set(3, 4, IL__ldsfld(Black)); |
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squares.Set(4, 3, IL__ldsfld(Black)); |
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squares.Set(4, 4, IL__ldsfld(White)); |
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UpdateCounts(); |
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} |
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public int GetSquareContents(int row, int col) |
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{ |
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return (squares.Get(row, col)); |
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} |
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public void MakeMove(int color, int row, int col) |
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{ |
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squares.Set(row, col, color); |
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for (int i = -1; i <= 1; i = i + 1) { |
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for (int j = -1; j <= 1; j = j + 1) { |
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if ((i || j) && IsOutflanking(color, row, col, i, j)) { |
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int k = row + i; |
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for (int l = col + j; squares.Get(k, l) == -color; l = l + j) { |
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squares.Set(k, l, color); |
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k = k + i; |
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} |
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} |
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} |
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} |
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UpdateCounts(); |
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} |
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public bool HasAnyValidMove(int color) |
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{ |
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for (int i = 0; i < 8; i = i + 1) { |
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for (int j = 0; j < 8; j = j + 1) { |
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if (IsValidMove(color, i, j)) { |
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return 1; |
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} |
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} |
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} |
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return 0; |
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} |
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public bool IsValidMove(int color, int row, int col) |
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{ |
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if (!(squares.Get(row, col) == IL__ldsfld(Empty))) { |
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return 0; |
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} |
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for (int i = -1; i <= 1; i = i + 1) { |
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for (int j = -1; j <= 1; j = j + 1) { |
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if ((i || j) && IsOutflanking(color, row, col, i, j)) { |
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return 1; |
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} |
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} |
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} |
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return 0; |
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} |
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public int GetValidMoveCount(int color) |
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{ |
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int i = 0; |
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for (int j = 0; j < 8; j = j + 1) { |
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for (int k = 0; k < 8; k = k + 1) { |
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if (IsValidMove(color, j, k)) { |
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i = i + 1; |
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} |
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} |
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} |
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return i; |
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} |
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private bool IsOutflanking(int color, int row, int col, int dr, int dc) |
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{ |
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int i = row + dr; |
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for (int j = col + dc; i >= 0 && i < 8 && j >= 0 && j < 8 && squares.Get(i, j) == -color; j = j + dc) { |
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i = i + dr; |
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} |
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if (i < 0 || i > 7 || j < 0 || j > 7 || i - dr == row && j - dc == col || squares.Get(i, j) != color) { |
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return 0; |
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} |
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return 1; |
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} |
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private void UpdateCounts() |
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{ |
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blackCount = 0; |
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whiteCount = 0; |
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emptyCount = 0; |
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blackFrontierCount = 0; |
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whiteFrontierCount = 0; |
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whiteSafeCount = 0; |
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blackSafeCount = 0; |
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for (bool V_2 = 1; V_2;) { |
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V_2 = 0; |
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for (int i = 0; i < 8; i = i + 1) { |
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for (int j = 0; j < 8; j = j + 1) { |
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if (!(squares.Get(i, j) == IL__ldsfld(Empty)) && !safeDiscs.Get(i, j) && !IsOutflankable(i, j)) { |
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safeDiscs.Set(i, j, 1); |
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V_2 = 1; |
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} |
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} |
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} |
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} |
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i = 0; |
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for (; i < 8; i = i + 1) { |
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j = 0; |
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for (; j < 8; j = j + 1) { |
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bool V_5 = 0; |
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if (!(squares.Get(i, j) == IL__ldsfld(Empty))) { |
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for (int k = -1; k <= 1; k = k + 1) { |
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for (int l = -1; l <= 1; l = l + 1) { |
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if ((k || l) && i + k >= 0 && i + k < 8 && j + l >= 0 && j + l < 8 && !(squares.Get((i + k), (j + l)) != IL__ldsfld(Empty))) { |
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V_5 = 1; |
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} |
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} |
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} |
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} |
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if (!(squares.Get(i, j) != IL__ldsfld(Black))) { |
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IL__dup(this); |
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object expr123 = expr122.blackCount; |
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int expr129 = expr123 + 1; |
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expr122.blackCount = expr129; |
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if (V_5) { |
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IL__dup(this); |
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object expr135 = expr134.blackFrontierCount; |
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int expr13B = expr135 + 1; |
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expr134.blackFrontierCount = expr13B; |
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} |
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if (safeDiscs.Get(i, j)) { |
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IL__dup(this); |
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object expr152 = expr151.blackSafeCount; |
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int expr158 = expr152 + 1; |
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expr151.blackSafeCount = expr158; |
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} |
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} |
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else { |
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if (!(squares.Get(i, j) != IL__ldsfld(White))) { |
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IL__dup(this); |
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object expr176 = expr175.whiteCount; |
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int expr17C = expr176 + 1; |
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expr175.whiteCount = expr17C; |
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if (V_5) { |
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IL__dup(this); |
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object expr188 = expr187.whiteFrontierCount; |
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int expr18E = expr188 + 1; |
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expr187.whiteFrontierCount = expr18E; |
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} |
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if (safeDiscs.Get(i, j)) { |
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IL__dup(this); |
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object expr1A5 = expr1A4.whiteSafeCount; |
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int expr1AB = expr1A5 + 1; |
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expr1A4.whiteSafeCount = expr1AB; |
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goto BasicBlock_313; |
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} |
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else { |
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goto BasicBlock_313; |
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} |
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} |
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IL__dup(this); |
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object expr1B5 = expr1B4.emptyCount; |
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int expr1BB = expr1B5 + 1; |
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expr1B4.emptyCount = expr1BB; |
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} |
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BasicBlock_313: |
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} |
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} |
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} |
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private bool IsOutflankable(int row, int col) |
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{ |
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int i = squares.Get(row, col); |
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bool V_3 = 0; |
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bool V_5 = 0; |
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bool V_4 = 0; |
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bool V_6 = 0; |
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for (int k = 0; k < col && !V_3; k = k + 1) { |
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if (!(squares.Get(row, k) != IL__ldsfld(Empty))) { |
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V_3 = 1; |
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} |
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else { |
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if (squares.Get(row, k) != i || !safeDiscs.Get(row, k)) { |
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V_5 = 1; |
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} |
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} |
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} |
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k = col + 1; |
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for (; k < 8 && !V_4; k = k + 1) { |
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if (!(squares.Get(row, k) != IL__ldsfld(Empty))) { |
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V_4 = 1; |
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} |
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else { |
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if (squares.Get(row, k) != i || !safeDiscs.Get(row, k)) { |
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V_6 = 1; |
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} |
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} |
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} |
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if (V_3 && V_4 || V_3 && V_6 || V_5 && V_4) { |
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return 1; |
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} |
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V_3 = 0; |
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V_4 = 0; |
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V_5 = 0; |
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V_6 = 0; |
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for (int j = 0; j < row && !V_3; j = j + 1) { |
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if (!(squares.Get(j, col) != IL__ldsfld(Empty))) { |
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V_3 = 1; |
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} |
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else { |
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if (squares.Get(j, col) != i || !safeDiscs.Get(j, col)) { |
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V_5 = 1; |
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} |
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} |
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} |
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j = row + 1; |
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for (; j < 8 && !V_4; j = j + 1) { |
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if (!(squares.Get(j, col) != IL__ldsfld(Empty))) { |
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V_4 = 1; |
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} |
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else { |
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if (squares.Get(j, col) != i || !safeDiscs.Get(j, col)) { |
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V_6 = 1; |
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} |
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} |
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} |
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if (V_3 && V_4 || V_3 && V_6 || V_5 && V_4) { |
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return 1; |
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} |
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V_3 = 0; |
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V_4 = 0; |
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V_5 = 0; |
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V_6 = 0; |
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j = row - 1; |
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k = col - 1; |
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for (; j >= 0 && k >= 0 && !V_3; k = k - 1) { |
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if (!(squares.Get(j, k) != IL__ldsfld(Empty))) { |
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V_3 = 1; |
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} |
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else { |
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if (squares.Get(j, k) != i || !safeDiscs.Get(j, k)) { |
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V_5 = 1; |
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} |
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} |
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j = j - 1; |
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} |
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j = row + 1; |
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k = col + 1; |
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for (; j < 8 && k < 8 && !V_4; k = k + 1) { |
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if (!(squares.Get(j, k) != IL__ldsfld(Empty))) { |
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V_4 = 1; |
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} |
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else { |
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if (squares.Get(j, k) != i || !safeDiscs.Get(j, k)) { |
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V_6 = 1; |
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} |
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} |
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j = j + 1; |
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} |
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if (V_3 && V_4 || V_3 && V_6 || V_5 && V_4) { |
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return 1; |
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} |
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V_3 = 0; |
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V_4 = 0; |
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V_5 = 0; |
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V_6 = 0; |
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j = row - 1; |
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k = col + 1; |
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for (; j >= 0 && k < 8 && !V_3; k = k + 1) { |
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if (!(squares.Get(j, k) != IL__ldsfld(Empty))) { |
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V_3 = 1; |
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} |
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else { |
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if (squares.Get(j, k) != i || !safeDiscs.Get(j, k)) { |
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V_5 = 1; |
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} |
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} |
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j = j - 1; |
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} |
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j = row + 1; |
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k = col - 1; |
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for (; j < 8 && k >= 0 && !V_4; k = k - 1) { |
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if (!(squares.Get(j, k) != IL__ldsfld(Empty))) { |
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V_4 = 1; |
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} |
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else { |
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if (squares.Get(j, k) != i || !safeDiscs.Get(j, k)) { |
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V_6 = 1; |
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} |
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} |
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j = j + 1; |
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} |
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if (V_3 && V_4 || V_3 && V_6 || V_5 && V_4) { |
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return 1; |
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} |
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return 0; |
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} |
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} |
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}
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