From aa465d0258ce7433cf1b017866ed40cae861e227 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Zurcher?= <jeremy@asynk.ch>
Date: Mon, 29 Sep 2014 23:53:39 +0200
Subject: add LineOfSightTest

---
 core/test/ch/asynk/tankontank/LineOfSightTest.java | 1482 ++++++++++++++++++++
 1 file changed, 1482 insertions(+)
 create mode 100644 core/test/ch/asynk/tankontank/LineOfSightTest.java

diff --git a/core/test/ch/asynk/tankontank/LineOfSightTest.java b/core/test/ch/asynk/tankontank/LineOfSightTest.java
new file mode 100644
index 0000000..b2fb047
--- /dev/null
+++ b/core/test/ch/asynk/tankontank/LineOfSightTest.java
@@ -0,0 +1,1482 @@
+package ch.asynk.tankontank;
+
+import java.util.List;
+
+import org.junit.Test;
+import org.junit.Before;
+
+import ch.asynk.tankontank.engine.Board;
+import ch.asynk.tankontank.engine.Tile;
+import ch.asynk.tankontank.engine.Pawn;
+import ch.asynk.tankontank.engine.SearchBoard;
+import ch.asynk.tankontank.engine.SearchBoard.Node;
+
+import static org.junit.Assert.assertTrue;
+
+class FakeTile extends Tile
+{
+    public boolean offMap;
+
+    public FakeTile()
+    {
+        super();
+        offMap = false;
+    }
+
+    public FakeTile(boolean offMap)
+    {
+        this.offMap = offMap;
+    }
+
+    public boolean isOffMap()
+    {
+        return offMap;
+    }
+    public boolean atLeastOneMove(Pawn pawn) { return true; }
+    public boolean road(Board.Orientation side) { return false; }
+    public int costFrom(Pawn pawn, Board.Orientation side, boolean road) { return 1; }
+    public boolean hasTargetsFor(Pawn pawn) { return false; }
+}
+
+class FakeBoard extends Board
+{
+    private int cols;
+    private int rows;
+    public FakeTile fakeTiles[];
+
+    public FakeBoard(int cols, int rows)
+    {
+        super();
+        this.cols = cols;
+        this.rows = rows;
+        fakeTiles = new FakeTile[cols * rows];
+        for (int i = 0; i < rows; i++) {
+            for ( int j = 0; j < cols; j ++)
+                fakeTiles[j + (i * cols)] = new FakeTile();
+        }
+        fakeTiles[19].offMap = true;
+        fakeTiles[39].offMap = true;
+        fakeTiles[59].offMap = true;
+        fakeTiles[79].offMap = true;
+    }
+
+    @Override
+    public Tile getTile(int col, int row)
+    {
+        int colOffset = ((row + 1) / 2);
+        if ((col < colOffset) || (row < 0) || (row >= rows) || ((col - colOffset) >= cols))
+            return new FakeTile(true);;
+        int idx = ((col - colOffset)) + (row * cols);
+        return fakeTiles[idx];
+    }
+}
+
+public class LineOfSightTest
+{
+    private SearchBoard sb;
+
+    @Before
+    public void initialize()
+    {
+        int cols = 10;
+        int rows = 9;
+        FakeBoard fakeBoard = new FakeBoard(cols, rows);
+        sb = new SearchBoard(fakeBoard, cols, rows);
+    }
+
+    private void checkNode(List<Node> l, int i, int col, int row)
+    {
+        Node n = l.get(i);
+        assertTrue(n.col == col);
+        assertTrue(n.row == row);
+    }
+
+    private List<Node> lineOfSight(int x0, int y0, int x1, int y1)
+    {
+        return sb.lineOfSight(x0, y0, x1, y1, false);
+    }
+
+    // from bottom left
+    @Test public void test_1() {
+        List<Node> s = lineOfSight(0, 0, 2, 1);
+        assertTrue(s.size() == 4);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 0);
+        checkNode(s, 3, 2, 1);
+    }
+
+    @Test public void test_2() {
+        List<Node> s = lineOfSight(0, 0, 5, 1);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 0);
+        checkNode(s, 2, 2, 0);
+        checkNode(s, 3, 3, 1);
+        checkNode(s, 4, 4, 1);
+        checkNode(s, 5, 5, 1);
+    }
+
+    @Test public void test_3() {
+        List<Node> s = lineOfSight(0, 0, 8, 1);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 0);
+        checkNode(s, 2, 2, 0);
+        checkNode(s, 3, 3, 0);
+        checkNode(s, 4, 4, 1);
+        checkNode(s, 5, 4, 0);
+        checkNode(s, 6, 5, 1);
+        checkNode(s, 7, 6, 1);
+        checkNode(s, 8, 7, 1);
+        checkNode(s, 9, 8, 1);
+    }
+
+    @Test public void test_4() {
+        List<Node> s = lineOfSight(0, 0, 1, 2);
+        assertTrue(s.size() == 3);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 2);
+    }
+
+    @Test public void test_5() {
+        List<Node> s = lineOfSight(0, 0, 4, 2);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 0);
+        checkNode(s, 3, 2, 1);
+        checkNode(s, 4, 3, 2);
+        checkNode(s, 5, 3, 1);
+        checkNode(s, 6, 4, 2);
+    }
+
+    @Test public void test_6() {
+        List<Node> s = lineOfSight(0, 0, 7, 2);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 0);
+        checkNode(s, 2, 2, 1);
+        checkNode(s, 3, 3, 1);
+        checkNode(s, 4, 4, 1);
+        checkNode(s, 5, 5, 1);
+        checkNode(s, 6, 6, 2);
+        checkNode(s, 7, 7, 2);
+    }
+
+    @Test public void test_7() {
+        List<Node> s = lineOfSight(0, 0, 10, 2);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 0);
+        checkNode(s, 2, 2, 0);
+        checkNode(s, 3, 3, 1);
+        checkNode(s, 4, 4, 1);
+        checkNode(s, 5, 5, 1);
+        checkNode(s, 6, 6, 1);
+        checkNode(s, 7, 7, 1);
+        checkNode(s, 8, 8, 2);
+        checkNode(s, 9, 9, 2);
+        checkNode(s, 10, 10, 2);
+    }
+
+    @Test public void test_8() {
+        List<Node> s = lineOfSight(0, 0, 6, 3);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 0);
+        checkNode(s, 3, 2, 1);
+        checkNode(s, 4, 3, 2);
+        checkNode(s, 5, 3, 1);
+        checkNode(s, 6, 4, 2);
+        checkNode(s, 7, 5, 3);
+        checkNode(s, 8, 5, 2);
+        checkNode(s, 9, 6, 3);
+    }
+
+    @Test public void test_9() {
+        List<Node> s = lineOfSight(0, 0, 2, 4);
+        assertTrue(s.size() == 5);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 2);
+        checkNode(s, 3, 2, 3);
+        checkNode(s, 4, 2, 4);
+    }
+
+    @Test public void test_10() {
+        List<Node> s = lineOfSight(0, 0, 5, 4);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 2);
+        checkNode(s, 3, 3, 2);
+        checkNode(s, 4, 4, 3);
+        checkNode(s, 5, 5, 4);
+    }
+
+    @Test public void test_11() {
+        List<Node> s = lineOfSight(0, 0, 8, 4);
+        assertTrue(s.size() == 13);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 0);
+        checkNode(s, 3, 2, 1);
+        checkNode(s, 4, 3, 2);
+        checkNode(s, 5, 3, 1);
+        checkNode(s, 6, 4, 2);
+        checkNode(s, 7, 5, 3);
+        checkNode(s, 8, 5, 2);
+        checkNode(s, 9, 6, 3);
+        checkNode(s, 10, 7, 4);
+        checkNode(s, 11, 7, 3);
+        checkNode(s, 12, 8, 4);
+    }
+
+    @Test public void test_12() {
+        List<Node> s = lineOfSight(0, 0, 11, 4);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 0);
+        checkNode(s, 2, 2, 1);
+        checkNode(s, 3, 3, 1);
+        checkNode(s, 4, 4, 1);
+        checkNode(s, 5, 5, 2);
+        checkNode(s, 6, 6, 2);
+        checkNode(s, 7, 7, 3);
+        checkNode(s, 8, 8, 3);
+        checkNode(s, 9, 9, 3);
+        checkNode(s, 10, 10, 4);
+        checkNode(s, 11, 11, 4);
+    }
+
+    @Test public void test_13() {
+        List<Node> s = lineOfSight(0, 0, 4, 5);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 2);
+        checkNode(s, 3, 2, 3);
+        checkNode(s, 4, 3, 4);
+        checkNode(s, 5, 4, 5);
+    }
+
+    @Test public void test_14() {
+        List<Node> s = lineOfSight(0, 0, 7, 5);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 1);
+        checkNode(s, 3, 3, 2);
+        checkNode(s, 4, 4, 3);
+        checkNode(s, 5, 5, 4);
+        checkNode(s, 6, 6, 4);
+        checkNode(s, 7, 7, 5);
+    }
+
+    @Test public void test_15() {
+        List<Node> s = lineOfSight(0, 0, 10, 5);
+        assertTrue(s.size() == 16);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 0);
+        checkNode(s, 3, 2, 1);
+        checkNode(s, 4, 3, 2);
+        checkNode(s, 5, 3, 1);
+        checkNode(s, 6, 4, 2);
+        checkNode(s, 7, 5, 3);
+        checkNode(s, 8, 5, 2);
+        checkNode(s, 9, 6, 3);
+        checkNode(s, 10, 7, 4);
+        checkNode(s, 11, 7, 3);
+        checkNode(s, 12, 8, 4);
+        checkNode(s, 13, 9, 5);
+        checkNode(s, 14, 9, 4);
+        checkNode(s, 15, 10, 5);
+    }
+
+    @Test public void test_16() {
+        List<Node> s = lineOfSight(0, 0, 3, 6);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 2);
+        checkNode(s, 3, 2, 3);
+        checkNode(s, 4, 2, 4);
+        checkNode(s, 5, 3, 5);
+        checkNode(s, 6, 3, 6);
+    }
+
+    @Test public void test_17() {
+        List<Node> s = lineOfSight(0, 0, 12, 6);
+        assertTrue(s.size() == 19);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 0);
+        checkNode(s, 3, 2, 1);
+        checkNode(s, 4, 3, 2);
+        checkNode(s, 5, 3, 1);
+        checkNode(s, 6, 4, 2);
+        checkNode(s, 7, 5, 3);
+        checkNode(s, 8, 5, 2);
+        checkNode(s, 9, 6, 3);
+        checkNode(s, 10, 7, 4);
+        checkNode(s, 11, 7, 3);
+        checkNode(s, 12, 8, 4);
+        checkNode(s, 13, 9, 5);
+        checkNode(s, 14, 9, 4);
+        checkNode(s, 15, 10, 5);
+        checkNode(s, 16, 11, 6);
+        checkNode(s, 17, 11, 5);
+        checkNode(s, 18, 12, 6);
+    }
+
+    @Test public void test_18() {
+        List<Node> s = lineOfSight(0, 0, 5, 7);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 2);
+        checkNode(s, 3, 2, 3);
+        checkNode(s, 4, 3, 4);
+        checkNode(s, 5, 4, 5);
+        checkNode(s, 6, 4, 6);
+        checkNode(s, 7, 5, 7);
+    }
+
+    @Test public void test_19() {
+        List<Node> s = lineOfSight(0, 0, 8, 7);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 2);
+        checkNode(s, 3, 3, 3);
+        checkNode(s, 4, 4, 3);
+        checkNode(s, 5, 4, 4);
+        checkNode(s, 6, 5, 4);
+        checkNode(s, 7, 6, 5);
+        checkNode(s, 8, 7, 6);
+        checkNode(s, 9, 8, 7);
+    }
+
+    @Test public void test_20() {
+        List<Node> s = lineOfSight(0, 0, 11, 7);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 1);
+        checkNode(s, 3, 3, 2);
+        checkNode(s, 4, 4, 3);
+        checkNode(s, 5, 5, 3);
+        checkNode(s, 6, 6, 4);
+        checkNode(s, 7, 7, 4);
+        checkNode(s, 8, 8, 5);
+        checkNode(s, 9, 9, 6);
+        checkNode(s, 10, 10, 6);
+        checkNode(s, 11, 11, 7);
+    }
+
+    @Test public void test_21() {
+        List<Node> s = lineOfSight(0, 0, 4, 8);
+        assertTrue(s.size() == 9);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 1, 2);
+        checkNode(s, 3, 2, 3);
+        checkNode(s, 4, 2, 4);
+        checkNode(s, 5, 3, 5);
+        checkNode(s, 6, 3, 6);
+        checkNode(s, 7, 4, 7);
+        checkNode(s, 8, 4, 8);
+    }
+
+    @Test public void test_22() {
+        List<Node> s = lineOfSight(0, 0, 7, 8);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 2);
+        checkNode(s, 3, 3, 3);
+        checkNode(s, 4, 3, 4);
+        checkNode(s, 5, 4, 4);
+        checkNode(s, 6, 4, 5);
+        checkNode(s, 7, 5, 6);
+        checkNode(s, 8, 6, 7);
+        checkNode(s, 9, 7, 8);
+    }
+
+    @Test public void test_23() {
+        List<Node> s = lineOfSight(0, 0, 10, 8);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 2);
+        checkNode(s, 3, 3, 2);
+        checkNode(s, 4, 4, 3);
+        checkNode(s, 5, 5, 4);
+        checkNode(s, 6, 6, 5);
+        checkNode(s, 7, 7, 6);
+        checkNode(s, 8, 8, 6);
+        checkNode(s, 9, 9, 7);
+        checkNode(s, 10, 10, 8);
+    }
+
+    @Test public void test_24() {
+        List<Node> s = lineOfSight(0, 0, 13, 8);
+        assertTrue(s.size() == 14);
+        checkNode(s, 0, 0, 0);
+        checkNode(s, 1, 1, 1);
+        checkNode(s, 2, 2, 1);
+        checkNode(s, 3, 3, 2);
+        checkNode(s, 4, 4, 2);
+        checkNode(s, 5, 5, 3);
+        checkNode(s, 6, 6, 4);
+        checkNode(s, 7, 7, 4);
+        checkNode(s, 8, 8, 5);
+        checkNode(s, 9, 9, 6);
+        checkNode(s, 10, 10, 6);
+        checkNode(s, 11, 11, 7);
+        checkNode(s, 12, 12, 7);
+        checkNode(s, 13, 13, 8);
+    }
+
+    // from top right
+    @Test public void test_25() {
+        List<Node> s = lineOfSight(13, 8, 11, 7);
+        assertTrue(s.size() == 4);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 8);
+        checkNode(s, 3, 11, 7);
+    }
+
+    @Test public void test_26() {
+        List<Node> s = lineOfSight(13, 8, 8, 7);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 8);
+        checkNode(s, 2, 11, 8);
+        checkNode(s, 3, 10, 7);
+        checkNode(s, 4, 9, 7);
+        checkNode(s, 5, 8, 7);
+    }
+
+    @Test public void test_27() {
+        List<Node> s = lineOfSight(13, 8, 5, 7);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 8);
+        checkNode(s, 2, 11, 8);
+        checkNode(s, 3, 10, 8);
+        checkNode(s, 4, 9, 7);
+        checkNode(s, 5, 9, 8);
+        checkNode(s, 6, 8, 7);
+        checkNode(s, 7, 7, 7);
+        checkNode(s, 8, 6, 7);
+        checkNode(s, 9, 5, 7);
+    }
+
+    // @Test public void test_28() {
+    //     List<Node> s = lineOfSight(13, 8, 12, 6);
+    //     assertTrue(s.size() == 3);
+    //     checkNode(s, 0, 13, 8);
+    //     checkNode(s, 1, 12, 7);
+    //     checkNode(s, 2, 12, 6);
+    // }
+
+    @Test public void test_29() {
+        List<Node> s = lineOfSight(13, 8, 9, 6);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 8);
+        checkNode(s, 3, 11, 7);
+        checkNode(s, 4, 10, 6);
+        checkNode(s, 5, 10, 7);
+        checkNode(s, 6, 9, 6);
+    }
+
+    @Test public void test_30() {
+        List<Node> s = lineOfSight(13, 8, 6, 6);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 8);
+        checkNode(s, 2, 11, 7);
+        checkNode(s, 3, 10, 7);
+        checkNode(s, 4, 9, 7);
+        checkNode(s, 5, 8, 7);
+        checkNode(s, 6, 7, 6);
+        checkNode(s, 7, 6, 6);
+    }
+
+    @Test public void test_31() {
+        List<Node> s = lineOfSight(13, 8, 3, 6);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 8);
+        checkNode(s, 2, 11, 8);
+        checkNode(s, 3, 10, 7);
+        checkNode(s, 4, 9, 7);
+        checkNode(s, 5, 8, 7);
+        checkNode(s, 6, 7, 7);
+        checkNode(s, 7, 6, 7);
+        checkNode(s, 8, 5, 6);
+        checkNode(s, 9, 4, 6);
+        checkNode(s, 10, 3, 6);
+    }
+
+    @Test public void test_32() {
+        List<Node> s = lineOfSight(13, 8, 7, 5);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 8);
+        checkNode(s, 3, 11, 7);
+        checkNode(s, 4, 10, 6);
+        checkNode(s, 5, 10, 7);
+        checkNode(s, 6, 9, 6);
+        checkNode(s, 7, 8, 5);
+        checkNode(s, 8, 8, 6);
+        checkNode(s, 9, 7, 5);
+    }
+
+    // @Test public void test_33() {
+    //     List<Node> s = lineOfSight(13, 8, 11, 4);
+    //     assertTrue(s.size() == 5);
+    //     checkNode(s, 0, 13, 8);
+    //     checkNode(s, 1, 12, 7);
+    //     checkNode(s, 2, 12, 6);
+    //     checkNode(s, 3, 11, 5);
+    //     checkNode(s, 4, 11, 4);
+    // }
+
+    @Test public void test_34() {
+        List<Node> s = lineOfSight(13, 8, 8, 4);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 6);
+        checkNode(s, 3, 10, 6);
+        checkNode(s, 4, 9, 5);
+        checkNode(s, 5, 8, 4);
+    }
+
+    @Test public void test_35() {
+        List<Node> s = lineOfSight(13, 8, 5, 4);
+        assertTrue(s.size() == 13);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 8);
+        checkNode(s, 3, 11, 7);
+        checkNode(s, 4, 10, 6);
+        checkNode(s, 5, 10, 7);
+        checkNode(s, 6, 9, 6);
+        checkNode(s, 7, 8, 5);
+        checkNode(s, 8, 8, 6);
+        checkNode(s, 9, 7, 5);
+        checkNode(s, 10, 6, 4);
+        checkNode(s, 11, 6, 5);
+        checkNode(s, 12, 5, 4);
+    }
+
+    @Test public void test_36() {
+        List<Node> s = lineOfSight(13, 8, 2, 4);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 8);
+        checkNode(s, 2, 11, 7);
+        checkNode(s, 3, 10, 7);
+        checkNode(s, 4, 9, 7);
+        checkNode(s, 5, 8, 6);
+        checkNode(s, 6, 7, 6);
+        checkNode(s, 7, 6, 5);
+        checkNode(s, 8, 5, 5);
+        checkNode(s, 9, 4, 5);
+        checkNode(s, 10, 3, 4);
+        checkNode(s, 11, 2, 4);
+    }
+
+    @Test public void test_37() {
+        List<Node> s = lineOfSight(13, 8, 9, 3);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 6);
+        checkNode(s, 3, 11, 5);
+        checkNode(s, 4, 10, 4);
+        checkNode(s, 5, 9, 3);
+    }
+
+    @Test public void test_38() {
+        List<Node> s = lineOfSight(13, 8, 6, 3);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 7);
+        checkNode(s, 3, 10, 6);
+        checkNode(s, 4, 9, 5);
+        checkNode(s, 5, 8, 4);
+        checkNode(s, 6, 7, 4);
+        checkNode(s, 7, 6, 3);
+    }
+
+    @Test public void test_39() {
+        List<Node> s = lineOfSight(13, 8, 3, 3);
+        assertTrue(s.size() == 16);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 8);
+        checkNode(s, 3, 11, 7);
+        checkNode(s, 4, 10, 6);
+        checkNode(s, 5, 10, 7);
+        checkNode(s, 6, 9, 6);
+        checkNode(s, 7, 8, 5);
+        checkNode(s, 8, 8, 6);
+        checkNode(s, 9, 7, 5);
+        checkNode(s, 10, 6, 4);
+        checkNode(s, 11, 6, 5);
+        checkNode(s, 12, 5, 4);
+        checkNode(s, 13, 4, 3);
+        checkNode(s, 14, 4, 4);
+        checkNode(s, 15, 3, 3);
+    }
+
+    @Test public void test_40() {
+        List<Node> s = lineOfSight(13, 8, 10, 2);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 6);
+        checkNode(s, 3, 11, 5);
+        checkNode(s, 4, 11, 4);
+        checkNode(s, 5, 10, 3);
+        checkNode(s, 6, 10, 2);
+    }
+
+    @Test public void test_41() {
+        List<Node> s = lineOfSight(13, 8, 1, 2);
+        assertTrue(s.size() == 19);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 8);
+        checkNode(s, 3, 11, 7);
+        checkNode(s, 4, 10, 6);
+        checkNode(s, 5, 10, 7);
+        checkNode(s, 6, 9, 6);
+        checkNode(s, 7, 8, 5);
+        checkNode(s, 8, 8, 6);
+        checkNode(s, 9, 7, 5);
+        checkNode(s, 10, 6, 4);
+        checkNode(s, 11, 6, 5);
+        checkNode(s, 12, 5, 4);
+        checkNode(s, 13, 4, 3);
+        checkNode(s, 14, 4, 4);
+        checkNode(s, 15, 3, 3);
+        checkNode(s, 16, 2, 2);
+        checkNode(s, 17, 2, 3);
+        checkNode(s, 18, 1, 2);
+    }
+
+    @Test public void test_42() {
+        List<Node> s = lineOfSight(13, 8, 8, 1);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 6);
+        checkNode(s, 3, 11, 5);
+        checkNode(s, 4, 10, 4);
+        checkNode(s, 5, 9, 3);
+        checkNode(s, 6, 9, 2);
+        checkNode(s, 7, 8, 1);
+    }
+
+    @Test public void test_43() {
+        List<Node> s = lineOfSight(13, 8, 5, 1);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 6);
+        checkNode(s, 3, 10, 5);
+        checkNode(s, 4, 9, 5);
+        checkNode(s, 5, 9, 4);
+        checkNode(s, 6, 8, 4);
+        checkNode(s, 7, 7, 3);
+        checkNode(s, 8, 6, 2);
+        checkNode(s, 9, 5, 1);
+    }
+
+    @Test public void test_44() {
+        List<Node> s = lineOfSight(13, 8, 2, 1);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 7);
+        checkNode(s, 3, 10, 6);
+        checkNode(s, 4, 9, 5);
+        checkNode(s, 5, 8, 5);
+        checkNode(s, 6, 7, 4);
+        checkNode(s, 7, 6, 4);
+        checkNode(s, 8, 5, 3);
+        checkNode(s, 9, 4, 2);
+        checkNode(s, 10, 3, 2);
+        checkNode(s, 11, 2, 1);
+    }
+
+    @Test public void test_45() {
+        List<Node> s = lineOfSight(13, 8, 9, 0);
+        assertTrue(s.size() == 9);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 12, 6);
+        checkNode(s, 3, 11, 5);
+        checkNode(s, 4, 11, 4);
+        checkNode(s, 5, 10, 3);
+        checkNode(s, 6, 10, 2);
+        checkNode(s, 7, 9, 1);
+        checkNode(s, 8, 9, 0);
+    }
+
+    @Test public void test_46() {
+        List<Node> s = lineOfSight(13, 8, 6, 0);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 6);
+        checkNode(s, 3, 10, 5);
+        checkNode(s, 4, 10, 4);
+        checkNode(s, 5, 9, 4);
+        checkNode(s, 6, 9, 3);
+        checkNode(s, 7, 8, 2);
+        checkNode(s, 8, 7, 1);
+        checkNode(s, 9, 6, 0);
+    }
+
+    @Test public void test_47() {
+        List<Node> s = lineOfSight(13, 8, 3, 0);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 6);
+        checkNode(s, 3, 10, 6);
+        checkNode(s, 4, 9, 5);
+        checkNode(s, 5, 8, 4);
+        checkNode(s, 6, 7, 3);
+        checkNode(s, 7, 6, 2);
+        checkNode(s, 8, 5, 2);
+        checkNode(s, 9, 4, 1);
+        checkNode(s, 10, 3, 0);
+    }
+
+    @Test public void test_48() {
+        List<Node> s = lineOfSight(13, 8, 0, 0);
+        assertTrue(s.size() == 14);
+        checkNode(s, 0, 13, 8);
+        checkNode(s, 1, 12, 7);
+        checkNode(s, 2, 11, 7);
+        checkNode(s, 3, 10, 6);
+        checkNode(s, 4, 9, 6);
+        checkNode(s, 5, 8, 5);
+        checkNode(s, 6, 7, 4);
+        checkNode(s, 7, 6, 4);
+        checkNode(s, 8, 5, 3);
+        checkNode(s, 9, 4, 2);
+        checkNode(s, 10, 3, 2);
+        checkNode(s, 11, 2, 1);
+        checkNode(s, 12, 1, 1);
+        checkNode(s, 13, 0, 0);
+    }
+
+    // from top left
+    @Test public void test_49() {
+        List<Node> s = lineOfSight(4, 8, 5, 7);
+        assertTrue(s.size() == 4);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 8);
+        checkNode(s, 3, 5, 7);
+    }
+
+    @Test public void test_50() {
+        List<Node> s = lineOfSight(4, 8, 8, 7);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 5, 8);
+        checkNode(s, 2, 6, 8);
+        checkNode(s, 3, 6, 7);
+        checkNode(s, 4, 7, 7);
+        checkNode(s, 5, 8, 7);
+    }
+
+    @Test public void test_51() {
+        List<Node> s = lineOfSight(4, 8, 11, 7);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 5, 8);
+        checkNode(s, 2, 6, 8);
+        checkNode(s, 3, 7, 8);
+        checkNode(s, 4, 7, 7);
+        checkNode(s, 5, 8, 8);
+        checkNode(s, 6, 8, 7);
+        checkNode(s, 7, 9, 7);
+        checkNode(s, 8, 10, 7);
+        checkNode(s, 9, 11, 7);
+    }
+
+    @Test public void test_52() {
+        List<Node> s = lineOfSight(4, 8, 3, 6);
+        assertTrue(s.size() == 3);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 3, 6);
+    }
+
+    @Test public void test_53() {
+        List<Node> s = lineOfSight(4, 8, 6, 6);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 8);
+        checkNode(s, 3, 5, 7);
+        checkNode(s, 4, 5, 6);
+        checkNode(s, 5, 6, 7);
+        checkNode(s, 6, 6, 6);
+    }
+
+    @Test public void test_54() {
+        List<Node> s = lineOfSight(4, 8, 9, 6);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 5, 8);
+        checkNode(s, 2, 5, 7);
+        checkNode(s, 3, 6, 7);
+        checkNode(s, 4, 7, 7);
+        checkNode(s, 5, 8, 7);
+        checkNode(s, 6, 8, 6);
+        checkNode(s, 7, 9, 6);
+    }
+
+    @Test public void test_55() {
+        List<Node> s = lineOfSight(4, 8, 12, 6);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 5, 8);
+        checkNode(s, 2, 6, 8);
+        checkNode(s, 3, 6, 7);
+        checkNode(s, 4, 7, 7);
+        checkNode(s, 5, 8, 7);
+        checkNode(s, 6, 9, 7);
+        checkNode(s, 7, 10, 7);
+        checkNode(s, 8, 10, 6);
+        checkNode(s, 9, 11, 6);
+        checkNode(s, 10, 12, 6);
+    }
+
+    @Test public void test_56() {
+        List<Node> s = lineOfSight(4, 8, 7, 5);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 8);
+        checkNode(s, 3, 5, 7);
+        checkNode(s, 4, 5, 6);
+        checkNode(s, 5, 6, 7);
+        checkNode(s, 6, 6, 6);
+        checkNode(s, 7, 6, 5);
+        checkNode(s, 8, 7, 6);
+        checkNode(s, 9, 7, 5);
+    }
+
+    @Test public void test_57() {
+        List<Node> s = lineOfSight(4, 8, 2, 4);
+        assertTrue(s.size() == 5);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 3, 6);
+        checkNode(s, 3, 3, 5);
+        checkNode(s, 4, 2, 4);
+    }
+
+    @Test public void test_58() {
+        List<Node> s = lineOfSight(4, 8, 5, 4);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 4, 6);
+        checkNode(s, 3, 5, 6);
+        checkNode(s, 4, 5, 5);
+        checkNode(s, 5, 5, 4);
+    }
+
+    @Test public void test_59() {
+        List<Node> s = lineOfSight(4, 8, 8, 4);
+        assertTrue(s.size() == 13);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 8);
+        checkNode(s, 3, 5, 7);
+        checkNode(s, 4, 5, 6);
+        checkNode(s, 5, 6, 7);
+        checkNode(s, 6, 6, 6);
+        checkNode(s, 7, 6, 5);
+        checkNode(s, 8, 7, 6);
+        checkNode(s, 9, 7, 5);
+        checkNode(s, 10, 7, 4);
+        checkNode(s, 11, 8, 5);
+        checkNode(s, 12, 8, 4);
+    }
+
+    @Test public void test_60() {
+        List<Node> s = lineOfSight(4, 8, 11, 4);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 5, 8);
+        checkNode(s, 2, 5, 7);
+        checkNode(s, 3, 6, 7);
+        checkNode(s, 4, 7, 7);
+        checkNode(s, 5, 7, 6);
+        checkNode(s, 6, 8, 6);
+        checkNode(s, 7, 8, 5);
+        checkNode(s, 8, 9, 5);
+        checkNode(s, 9, 10, 5);
+        checkNode(s, 10, 10, 4);
+        checkNode(s, 11, 11, 4);
+    }
+
+    @Test public void test_61() {
+        List<Node> s = lineOfSight(4, 8, 3, 3);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 4, 6);
+        checkNode(s, 3, 3, 5);
+        checkNode(s, 4, 3, 4);
+        checkNode(s, 5, 3, 3);
+    }
+
+    @Test public void test_62() {
+        List<Node> s = lineOfSight(4, 8, 6, 3);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 7);
+        checkNode(s, 3, 5, 6);
+        checkNode(s, 4, 5, 5);
+        checkNode(s, 5, 5, 4);
+        checkNode(s, 6, 6, 4);
+        checkNode(s, 7, 6, 3);
+    }
+
+    @Test public void test_63() {
+        List<Node> s = lineOfSight(4, 8, 9, 3);
+        assertTrue(s.size() == 16);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 8);
+        checkNode(s, 3, 5, 7);
+        checkNode(s, 4, 5, 6);
+        checkNode(s, 5, 6, 7);
+        checkNode(s, 6, 6, 6);
+        checkNode(s, 7, 6, 5);
+        checkNode(s, 8, 7, 6);
+        checkNode(s, 9, 7, 5);
+        checkNode(s, 10, 7, 4);
+        checkNode(s, 11, 8, 5);
+        checkNode(s, 12, 8, 4);
+        checkNode(s, 13, 8, 3);
+        checkNode(s, 14, 9, 4);
+        checkNode(s, 15, 9, 3);
+    }
+
+    @Test public void test_64() {
+        List<Node> s = lineOfSight(4, 8, 1, 2);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 3, 6);
+        checkNode(s, 3, 3, 5);
+        checkNode(s, 4, 2, 4);
+        checkNode(s, 5, 2, 3);
+        checkNode(s, 6, 1, 2);
+    }
+
+    @Test public void test_65() {
+        List<Node> s = lineOfSight(4, 8, 10, 2);
+        assertTrue(s.size() == 19);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 8);
+        checkNode(s, 3, 5, 7);
+        checkNode(s, 4, 5, 6);
+        checkNode(s, 5, 6, 7);
+        checkNode(s, 6, 6, 6);
+        checkNode(s, 7, 6, 5);
+        checkNode(s, 8, 7, 6);
+        checkNode(s, 9, 7, 5);
+        checkNode(s, 10, 7, 4);
+        checkNode(s, 11, 8, 5);
+        checkNode(s, 12, 8, 4);
+        checkNode(s, 13, 8, 3);
+        checkNode(s, 14, 9, 4);
+        checkNode(s, 15, 9, 3);
+        checkNode(s, 16, 9, 2);
+        checkNode(s, 17, 10, 3);
+        checkNode(s, 18, 10, 2);
+    }
+
+    @Test public void test_66() {
+        List<Node> s = lineOfSight(4, 8, 2, 1);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 3, 6);
+        checkNode(s, 3, 3, 5);
+        checkNode(s, 4, 3, 4);
+        checkNode(s, 5, 3, 3);
+        checkNode(s, 6, 2, 2);
+        checkNode(s, 7, 2, 1);
+    }
+
+    @Test public void test_67() {
+        List<Node> s = lineOfSight(4, 8, 5, 1);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 4, 6);
+        checkNode(s, 3, 4, 5);
+        checkNode(s, 4, 5, 5);
+        checkNode(s, 5, 4, 4);
+        checkNode(s, 6, 5, 4);
+        checkNode(s, 7, 5, 3);
+        checkNode(s, 8, 5, 2);
+        checkNode(s, 9, 5, 1);
+    }
+
+    @Test public void test_68() {
+        List<Node> s = lineOfSight(4, 8, 8, 1);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 7);
+        checkNode(s, 3, 5, 6);
+        checkNode(s, 4, 5, 5);
+        checkNode(s, 5, 6, 5);
+        checkNode(s, 6, 6, 4);
+        checkNode(s, 7, 7, 4);
+        checkNode(s, 8, 7, 3);
+        checkNode(s, 9, 7, 2);
+        checkNode(s, 10, 8, 2);
+        checkNode(s, 11, 8, 1);
+    }
+
+    @Test public void test_69() {
+        List<Node> s = lineOfSight(4, 8, 0, 0);
+        assertTrue(s.size() == 9);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 3, 6);
+        checkNode(s, 3, 3, 5);
+        checkNode(s, 4, 2, 4);
+        checkNode(s, 5, 2, 3);
+        checkNode(s, 6, 1, 2);
+        checkNode(s, 7, 1, 1);
+        checkNode(s, 8, 0, 0);
+    }
+
+    @Test public void test_70() {
+        List<Node> s = lineOfSight(4, 8, 3, 0);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 4, 6);
+        checkNode(s, 3, 4, 5);
+        checkNode(s, 4, 3, 4);
+        checkNode(s, 5, 4, 4);
+        checkNode(s, 6, 3, 3);
+        checkNode(s, 7, 3, 2);
+        checkNode(s, 8, 3, 1);
+        checkNode(s, 9, 3, 0);
+    }
+
+    @Test public void test_71() {
+        List<Node> s = lineOfSight(4, 8, 6, 0);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 4, 6);
+        checkNode(s, 3, 5, 6);
+        checkNode(s, 4, 5, 5);
+        checkNode(s, 5, 5, 4);
+        checkNode(s, 6, 5, 3);
+        checkNode(s, 7, 5, 2);
+        checkNode(s, 8, 6, 2);
+        checkNode(s, 9, 6, 1);
+        checkNode(s, 10, 6, 0);
+    }
+
+    @Test public void test_72() {
+        List<Node> s = lineOfSight(4, 8, 9, 0);
+        assertTrue(s.size() == 14);
+        checkNode(s, 0, 4, 8);
+        checkNode(s, 1, 4, 7);
+        checkNode(s, 2, 5, 7);
+        checkNode(s, 3, 5, 6);
+        checkNode(s, 4, 6, 6);
+        checkNode(s, 5, 6, 5);
+        checkNode(s, 6, 6, 4);
+        checkNode(s, 7, 7, 4);
+        checkNode(s, 8, 7, 3);
+        checkNode(s, 9, 7, 2);
+        checkNode(s, 10, 8, 2);
+        checkNode(s, 11, 8, 1);
+        checkNode(s, 12, 9, 1);
+        checkNode(s, 13, 9, 0);
+    }
+
+    // from bottom right
+    @Test public void test_73() {
+        List<Node> s = lineOfSight(9, 0, 8, 1);
+        assertTrue(s.size() == 4);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 0);
+        checkNode(s, 3, 8, 1);
+    }
+
+    @Test public void test_74() {
+        List<Node> s = lineOfSight(9, 0, 5, 1);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 8, 0);
+        checkNode(s, 2, 7, 0);
+        checkNode(s, 3, 7, 1);
+        checkNode(s, 4, 6, 1);
+        checkNode(s, 5, 5, 1);
+    }
+
+    @Test public void test_75() {
+        List<Node> s = lineOfSight(9, 0, 2, 1);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 8, 0);
+        checkNode(s, 2, 7, 0);
+        checkNode(s, 3, 6, 0);
+        checkNode(s, 4, 6, 1);
+        checkNode(s, 5, 5, 0);
+        checkNode(s, 6, 5, 1);
+        checkNode(s, 7, 4, 1);
+        checkNode(s, 8, 3, 1);
+        checkNode(s, 9, 2, 1);
+    }
+
+    @Test public void test_76() {
+        List<Node> s = lineOfSight(9, 0, 10, 2);
+        assertTrue(s.size() == 3);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 10, 2);
+    }
+
+    @Test public void test_77() {
+        List<Node> s = lineOfSight(9, 0, 7, 2);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 0);
+        checkNode(s, 3, 8, 1);
+        checkNode(s, 4, 8, 2);
+        checkNode(s, 5, 7, 1);
+        checkNode(s, 6, 7, 2);
+    }
+
+    @Test public void test_78() {
+        List<Node> s = lineOfSight(9, 0, 4, 2);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 8, 0);
+        checkNode(s, 2, 8, 1);
+        checkNode(s, 3, 7, 1);
+        checkNode(s, 4, 6, 1);
+        checkNode(s, 5, 5, 1);
+        checkNode(s, 6, 5, 2);
+        checkNode(s, 7, 4, 2);
+    }
+
+    @Test public void test_79() {
+        List<Node> s = lineOfSight(9, 0, 1, 2);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 8, 0);
+        checkNode(s, 2, 7, 0);
+        checkNode(s, 3, 7, 1);
+        checkNode(s, 4, 6, 1);
+        checkNode(s, 5, 5, 1);
+        checkNode(s, 6, 4, 1);
+        checkNode(s, 7, 3, 1);
+        checkNode(s, 8, 3, 2);
+        checkNode(s, 9, 2, 2);
+        checkNode(s, 10, 1, 2);
+    }
+
+    @Test public void test_80() {
+        List<Node> s = lineOfSight(9, 0, 6, 3);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 0);
+        checkNode(s, 3, 8, 1);
+        checkNode(s, 4, 8, 2);
+        checkNode(s, 5, 7, 1);
+        checkNode(s, 6, 7, 2);
+        checkNode(s, 7, 7, 3);
+        checkNode(s, 8, 6, 2);
+        checkNode(s, 9, 6, 3);
+    }
+
+    @Test public void test_81() {
+        List<Node> s = lineOfSight(9, 0, 11, 4);
+        assertTrue(s.size() == 5);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 10, 2);
+        checkNode(s, 3, 10, 3);
+        checkNode(s, 4, 11, 4);
+    }
+
+    @Test public void test_82() {
+        List<Node> s = lineOfSight(9, 0, 8, 4);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 9, 2);
+        checkNode(s, 3, 8, 2);
+        checkNode(s, 4, 8, 3);
+        checkNode(s, 5, 8, 4);
+    }
+
+    @Test public void test_83() {
+        List<Node> s = lineOfSight(9, 0, 5, 4);
+        assertTrue(s.size() == 13);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 0);
+        checkNode(s, 3, 8, 1);
+        checkNode(s, 4, 8, 2);
+        checkNode(s, 5, 7, 1);
+        checkNode(s, 6, 7, 2);
+        checkNode(s, 7, 7, 3);
+        checkNode(s, 8, 6, 2);
+        checkNode(s, 9, 6, 3);
+        checkNode(s, 10, 6, 4);
+        checkNode(s, 11, 5, 3);
+        checkNode(s, 12, 5, 4);
+    }
+
+    @Test public void test_84() {
+        List<Node> s = lineOfSight(9, 0, 2, 4);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 8, 0);
+        checkNode(s, 2, 8, 1);
+        checkNode(s, 3, 7, 1);
+        checkNode(s, 4, 6, 1);
+        checkNode(s, 5, 6, 2);
+        checkNode(s, 6, 5, 2);
+        checkNode(s, 7, 5, 3);
+        checkNode(s, 8, 4, 3);
+        checkNode(s, 9, 3, 3);
+        checkNode(s, 10, 3, 4);
+        checkNode(s, 11, 2, 4);
+    }
+
+    @Test public void test_85() {
+        List<Node> s = lineOfSight(9, 0, 10, 5);
+        assertTrue(s.size() == 6);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 9, 2);
+        checkNode(s, 3, 10, 3);
+        checkNode(s, 4, 10, 4);
+        checkNode(s, 5, 10, 5);
+    }
+
+    @Test public void test_86() {
+        List<Node> s = lineOfSight(9, 0, 7, 5);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 1);
+        checkNode(s, 3, 8, 2);
+        checkNode(s, 4, 8, 3);
+        checkNode(s, 5, 8, 4);
+        checkNode(s, 6, 7, 4);
+        checkNode(s, 7, 7, 5);
+    }
+
+    @Test public void test_87() {
+        List<Node> s = lineOfSight(9, 0, 4, 5);
+        assertTrue(s.size() == 16);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 0);
+        checkNode(s, 3, 8, 1);
+        checkNode(s, 4, 8, 2);
+        checkNode(s, 5, 7, 1);
+        checkNode(s, 6, 7, 2);
+        checkNode(s, 7, 7, 3);
+        checkNode(s, 8, 6, 2);
+        checkNode(s, 9, 6, 3);
+        checkNode(s, 10, 6, 4);
+        checkNode(s, 11, 5, 3);
+        checkNode(s, 12, 5, 4);
+        checkNode(s, 13, 5, 5);
+        checkNode(s, 14, 4, 4);
+        checkNode(s, 15, 4, 5);
+    }
+
+    @Test public void test_88() {
+        List<Node> s = lineOfSight(9, 0, 12, 6);
+        assertTrue(s.size() == 7);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 10, 2);
+        checkNode(s, 3, 10, 3);
+        checkNode(s, 4, 11, 4);
+        checkNode(s, 5, 11, 5);
+        checkNode(s, 6, 12, 6);
+    }
+
+    @Test public void test_89() {
+        List<Node> s = lineOfSight(9, 0, 3, 6);
+        assertTrue(s.size() == 19);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 0);
+        checkNode(s, 3, 8, 1);
+        checkNode(s, 4, 8, 2);
+        checkNode(s, 5, 7, 1);
+        checkNode(s, 6, 7, 2);
+        checkNode(s, 7, 7, 3);
+        checkNode(s, 8, 6, 2);
+        checkNode(s, 9, 6, 3);
+        checkNode(s, 10, 6, 4);
+        checkNode(s, 11, 5, 3);
+        checkNode(s, 12, 5, 4);
+        checkNode(s, 13, 5, 5);
+        checkNode(s, 14, 4, 4);
+        checkNode(s, 15, 4, 5);
+        checkNode(s, 16, 4, 6);
+        checkNode(s, 17, 3, 5);
+        checkNode(s, 18, 3, 6);
+    }
+
+    @Test public void test_90() {
+        List<Node> s = lineOfSight(9, 0, 11, 7);
+        assertTrue(s.size() == 8);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 10, 2);
+        checkNode(s, 3, 10, 3);
+        checkNode(s, 4, 10, 4);
+        checkNode(s, 5, 10, 5);
+        checkNode(s, 6, 11, 6);
+        checkNode(s, 7, 11, 7);
+    }
+
+    @Test public void test_91() {
+        List<Node> s = lineOfSight(9, 0, 8, 7);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 9, 2);
+        checkNode(s, 3, 9, 3);
+        checkNode(s, 4, 8, 3);
+        checkNode(s, 5, 9, 4);
+        checkNode(s, 6, 8, 4);
+        checkNode(s, 7, 8, 5);
+        checkNode(s, 8, 8, 6);
+        checkNode(s, 9, 8, 7);
+    }
+
+    @Test public void test_92() {
+        List<Node> s = lineOfSight(9, 0, 5, 7);
+        assertTrue(s.size() == 12);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 1);
+        checkNode(s, 3, 8, 2);
+        checkNode(s, 4, 8, 3);
+        checkNode(s, 5, 7, 3);
+        checkNode(s, 6, 7, 4);
+        checkNode(s, 7, 6, 4);
+        checkNode(s, 8, 6, 5);
+        checkNode(s, 9, 6, 6);
+        checkNode(s, 10, 5, 6);
+        checkNode(s, 11, 5, 7);
+    }
+
+    @Test public void test_93() {
+        List<Node> s = lineOfSight(9, 0, 13, 8);
+        assertTrue(s.size() == 9);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 10, 2);
+        checkNode(s, 3, 10, 3);
+        checkNode(s, 4, 11, 4);
+        checkNode(s, 5, 11, 5);
+        checkNode(s, 6, 12, 6);
+        checkNode(s, 7, 12, 7);
+        checkNode(s, 8, 13, 8);
+    }
+
+    @Test public void test_94() {
+        List<Node> s = lineOfSight(9, 0, 10, 8);
+        assertTrue(s.size() == 10);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 9, 2);
+        checkNode(s, 3, 9, 3);
+        checkNode(s, 4, 10, 4);
+        checkNode(s, 5, 9, 4);
+        checkNode(s, 6, 10, 5);
+        checkNode(s, 7, 10, 6);
+        checkNode(s, 8, 10, 7);
+        checkNode(s, 9, 10, 8);
+    }
+
+    @Test public void test_95() {
+        List<Node> s = lineOfSight(9, 0, 7, 8);
+        assertTrue(s.size() == 11);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 9, 2);
+        checkNode(s, 3, 8, 2);
+        checkNode(s, 4, 8, 3);
+        checkNode(s, 5, 8, 4);
+        checkNode(s, 6, 8, 5);
+        checkNode(s, 7, 8, 6);
+        checkNode(s, 8, 7, 6);
+        checkNode(s, 9, 7, 7);
+        checkNode(s, 10, 7, 8);
+    }
+
+    @Test public void test_96() {
+        List<Node> s = lineOfSight(9, 0, 4, 8);
+        assertTrue(s.size() == 14);
+        checkNode(s, 0, 9, 0);
+        checkNode(s, 1, 9, 1);
+        checkNode(s, 2, 8, 1);
+        checkNode(s, 3, 8, 2);
+        checkNode(s, 4, 7, 2);
+        checkNode(s, 5, 7, 3);
+        checkNode(s, 6, 7, 4);
+        checkNode(s, 7, 6, 4);
+        checkNode(s, 8, 6, 5);
+        checkNode(s, 9, 6, 6);
+        checkNode(s, 10, 5, 6);
+        checkNode(s, 11, 5, 7);
+        checkNode(s, 12, 4, 7);
+        checkNode(s, 13, 4, 8);
+    }
+}
-- 
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