Updated Chess\Variant\Classical\PGN\Square

chesslablab · Feb 2, 2025 · 717ef91 · 717ef91
1 parent 41344af
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diff --git a/src/Variant/Classical/PGN/Square.php b/src/Variant/Classical/PGN/Square.php
@@ -47,86 +47,6 @@ public function __construct()
         }
     }
 
-    /**
-     * Returns true if the line of squares has consecutive files.
-     *
-     * @param array $line
-     * @return bool
-     */
-    protected function hasConsecutiveFiles(array $line): bool
-    {
-        for ($i = 1; $i < count($line); $i++) {
-            if (ord($line[$i - 1][0]) !== ord($line[$i][0]) - 1) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    /**
-     * Returns true if the line of squares has consecutive ranks.
-     *
-     * @param array $line
-     * @return bool
-     */
-    protected function hasConsecutiveRanks(array $line, int $diff): bool
-    {
-        $ranks = $this->ranks($line);
-        for ($i = 1; $i < count($ranks); $i++) {
-            if ($ranks[$i] - $ranks[$i - 1] !== $diff) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    /**
-     * Returns the ranks in a line.
-     *
-     * @param array $line
-     * @return array
-     */
-    protected function ranks(array $line): array
-    {
-        $ranks = [];
-        for ($i = 0; $i < count($line); $i++) { 
-            $ranks[] = (int) substr($line[$i], 1);
-        }
-
-        return $ranks;
-    }
-
-    /**
-     * Returns true if the line of squares is a diagonal line with the
-     * precondition that the array is sorted in alphabetical order.
-     *
-     * @param array $line
-     * @return bool
-     */
-    public function isDiagonalLine(array $line): bool
-    {
-        return $this->hasConsecutiveFiles($line) && 
-            ($this->hasConsecutiveRanks($line, -1) xor $this->hasConsecutiveRanks($line, 1));
-    }
-
-    /**
-     * Returns true if the line of squares is a straight line with the
-     * precondition that the array is sorted in alphabetical order.
-     *
-     * @param array $line
-     * @return bool
-     */
-    public function isStraightLine(array $line): bool
-    {
-        if ($this->hasConsecutiveFiles($line)) {
-            return !$this->hasConsecutiveRanks($line, -1) && !$this->hasConsecutiveRanks($line, 1);
-        }
-
-        return $this->hasConsecutiveRanks($line, 1);
-    }
-
     /**
      * Validate a square in algebraic notation.
      * 

diff --git a/tests/unit/Variant/Classical/PGN/SquareTest.php b/tests/unit/Variant/Classical/PGN/SquareTest.php
@@ -118,116 +118,4 @@ public function from_index_to_algebraic_0_8()
     {
         $this->assertSame('a9', self::$square->toAn(0, 8));
     }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_c5_d6()
-    {
-        $this->assertTrue(self::$square->isDiagonalLine(['b4', 'c5', 'd6']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_d6_c5()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['b4', 'd6', 'c5']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_c3_d2()
-    {
-        $this->assertTrue(self::$square->isDiagonalLine(['b4', 'c3', 'd2']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_d2()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['b4', 'd2']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_c4()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['b4', 'c4']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_c3_d4()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['b4', 'c3', 'd4']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_b4_c3_d6()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['b4', 'c3', 'd6']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_straight_line_b4_c3_d2()
-    {
-        $this->assertFalse(self::$square->isStraightLine(['b4', 'c3', 'd2']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_straight_line_c7_d7_e7()
-    {
-        $this->assertTrue(self::$square->isStraightLine(['c7', 'd7', 'e7']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_straight_line_c7_e7_d7()
-    {
-        $this->assertFalse(self::$square->isStraightLine(['c7', 'e7', 'd7']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_straight_line_c7_c6_c5()
-    {
-        $this->assertFalse(self::$square->isStraightLine(['c7', 'c6', 'c5']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_straight_line_c5_c6_c7()
-    {
-        $this->assertTrue(self::$square->isStraightLine(['c5', 'c6', 'c7']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_c5_c6_c7()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['c5', 'c6', 'c7']));
-    }
-
-    /**
-     * @test
-     */
-    public function is_diagonal_line_c7_d7_e7()
-    {
-        $this->assertFalse(self::$square->isDiagonalLine(['c7', 'd7', 'e7']));
-    }
 }