Rename checkDiag to checkDiagLR and add checkDiagRL. Add more tests

Dependencies

• [2] UWVAMBIJ Fix couple of tests, add more
• [3] G5KXCVIL tictactoe: initial import

Change contents

• replacement in snippets/tictactoe/evaluate_test.go at line 17
  [3.2460]→[2.0:363](∅→∅)
  − {"Pl2 col", [][]rune{{Pl2, Pl1, Pl1}, {Pl2, Empty, Empty}, {Pl2, Empty, Empty}}, -10},

  − {"Pl1 last col", [][]rune{{Pl2, Pl1, Pl1}, {Pl2, Empty, Pl1}, {Empty, Empty, Pl1}}, 10},

  − {"Pl2 diag lr", [][]rune{{Pl2, Pl1, Pl1}, {Empty, Pl2, Empty}, {Pl1, Empty, Pl2}}, -10},

  − {"Pl1 diag rl", [][]rune{{Pl2, Pl1, Pl1}, {Empty, Pl1, Empty}, {Pl1, Empty, Empty}}, 10},
  [3.2460]

  [3.2638]
  + {"Pl2 col", [][]rune{{Pl2, Empty, Empty}, {Pl2, Empty, Empty}, {Pl2, Empty, Empty}}, -10},

  + {"Pl1 last col", [][]rune{{Empty, Empty, Pl1}, {Empty, Empty, Pl1}, {Empty, Empty, Pl1}}, 10},

  + {"Pl2 diag lr", [][]rune{{Pl2, Empty, Empty}, {Empty, Pl2, Empty}, {Empty, Empty, Pl2}}, -10},

  + {"Pl1 diag rl", [][]rune{{Empty, Empty, Pl1}, {Empty, Pl1, Empty}, {Pl1, Empty, Empty}}, 10},
• replacement in snippets/tictactoe/evaluate.go at line 18
  [3.3240]→[3.3240:3300](∅→∅)
  − if checkDiag(board, row, col, WinSize, Pl1) == WinSize {
  [3.3240]

  [3.3300]
  + if checkDiagLR(board, row, col, WinSize, Pl1) == WinSize {

  + return +10

  + } else if checkDiagLR(board, row, col, WinSize, Pl2) == WinSize {

  + return -10

  + }

  + if checkDiagRL(board, row, col, WinSize, Pl1) == WinSize {
• replacement in snippets/tictactoe/evaluate.go at line 25
  [3.3315]→[3.3315:3382](∅→∅)
  − } else if checkDiag(board, row, col, WinSize, Pl2) == WinSize {
  [3.3315]

  [3.3382]
  + } else if checkDiagRL(board, row, col, WinSize, Pl2) == WinSize {
• replacement in snippets/tictactoe/evaluate.go at line 59
  [3.3944]→[3.3944:4028](∅→∅)
  − func checkDiag(board [][]rune, row, col, winsize int, player rune) (goodness int) {
  [3.3944]

  [3.4028]
  + func checkDiagLR(board [][]rune, row, col, winsize int, player rune) (goodness int) {
• edit in snippets/tictactoe/evaluate.go at line 71
  [3.4234]
  +

  + func checkDiagRL(board [][]rune, row, col, winsize int, player rune) (goodness int) {

  + for k := 0; k < winsize; k++ {

  + if row+k < len(board[col]) && col-k >= 0 {

  + if board[row+k][col-k] == player {

  + goodness++

  + } else {

  + return goodness

  + }

  + }

  + }

  + return goodness

  + }