oxaliq/node-go
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

add logic for legal check that prevents moves at points with no liberties

Browse source
This commit is contained in:
Sorrel Bri 2020-04-24 00:16:31 -07:00
parent 089783c82d
commit 4a90b933a7
2 changed files with 22 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
packages/server/services/Game.v2.js
View file

@ -71,13 +71,23 @@ const checkLegal = ({ point, Game }) => {
// if stone (includes ko) return false // if stone (includes ko) return false
let legal = false; let legal = false;
if (point.stone) { if (point.stone) {
return { ...point, legal }; point.legal = legal;
return point;
}
const isEmptyAdjacent = Object.values(point.neighbors).filter(pt => pt.stone === 0)[0]
// .length;
// if empty point adjacent return true
if (!isEmptyAdjacent) {
point.legal = legal;
return { ...point, adj: isEmptyAdjacent };
// TODO change to positive check with legal: true after remaining logic has been added
} }
// if liberties return true
// if group has liberties return true // if group has liberties return true
// if move would capture opposing group // if move would capture opposing group
// set capturing object and return true // set capturing object and return true
point.legal = !point.stone ? true : false; point.legal = !point.stone ? true : false;
point.adj = isEmptyAdjacent;
return point; return point;
} }
@ -93,6 +103,11 @@ const getNeighbors = boardSize => (point, i, boardState) => {
point.neighbors.btm = btm ? boardState[i + boardSize][1] : btm; point.neighbors.btm = btm ? boardState[i + boardSize][1] : btm;
point.neighbors.lft = lft ? boardState[i - 1][1] : lft; point.neighbors.lft = lft ? boardState[i - 1][1] : lft;
point.neighbors.rgt = rgt ? boardState[i + 1][1] : rgt; point.neighbors.rgt = rgt ? boardState[i + 1][1] : rgt;
for (let [direction, neighbor] of Object.entries(point.neighbors)) {
if (!neighbor) {
delete point.neighbors[direction];
}
}
return point; return point;
} }

9
packages/server/test/Game.v2.spec.js
View file

@ -188,12 +188,13 @@ describe('Game.makeMove({ player: str, pos: { x: int, y: int } })', () => {
}) })
it('makeMove returns success: false when move is made in point with no liberties', done => { it('makeMove returns success: false when move is made in point with no liberties', done => {
Game({ gameData: { handicap: 2 } }).initGame() const point = Game({ gameData: { handicap: 2 } }).initGame() // 15 16 17
.makeMove({ player: 'white', pos: { x: 4, y: 4 } }).makeMove({ player: 'black', pos: { x: 6, y: 16 } }) .makeMove({ player: 'white', pos: { x: 4, y: 4 } }).makeMove({ player: 'black', pos: { x: 6, y: 16 } }) // 4 1
.makeMove({ player: 'white', pos: { x: 16, y: 16 }}).makeMove({ player: 'black', pos: { x: 5, y: 15 } }) .makeMove({ player: 'white', pos: { x: 16, y: 16 }}).makeMove({ player: 'black', pos: { x: 5, y: 15 } }) // 5 1 x 1
.makeMove({ player: 'white', pos: { x: 16, y: 10 }}).makeMove({ player: 'black', pos: { x: 5, y: 17 } }) .makeMove({ player: 'white', pos: { x: 16, y: 10 }}).makeMove({ player: 'black', pos: { x: 5, y: 17 } }) // 6 1
.makeMove({ player: 'white', pos: { x: 5, y: 16 }}) .makeMove({ player: 'white', pos: { x: 5, y: 16 }})
.success.should.eql(false); .success.should.eql(false);
done(); done();
}) })
}); });