{
let positions = _.range(11);
- // Get random squares for bishops
- let randIndex = 2 * _.random(5);
- let bishop1Pos = positions[randIndex];
- // The second bishop must be on a square of different color
- let randIndex_tmp = 2 * _.random(4) + 1;
- let bishop2Pos = positions[randIndex_tmp];
+ // Get random squares for bishops + camels (different colors)
+ let randIndexes = _.sample(_.range(6), 2).map(i => { return 2*i; });
+ let bishop1Pos = positions[randIndexes[0]];
+ let camel1Pos = positions[randIndexes[1]];
+ // The second bishop (camel) must be on a square of different color
+ let randIndexes_tmp = _.sample(_.range(5), 2).map(i => { return 2*i+1; });
+ let bishop2Pos = positions[randIndexes_tmp[0]];
+ let camel2Pos = positions[randIndexes_tmp[1]];
// Remove chosen squares
- positions.splice(Math.max(randIndex,randIndex_tmp), 1);
- positions.splice(Math.min(randIndex,randIndex_tmp), 1);
+ for (let idx of randIndexes.concat(randIndexes_tmp).sort((a,b) => { return b-a; }))
+ positions.splice(idx, 1);
// Get random squares for knights
- randIndex = _.random(8);
+ let randIndex = _.random(6);
let knight1Pos = positions[randIndex];
positions.splice(randIndex, 1);
- randIndex = _.random(7);
+ randIndex = _.random(5);
let knight2Pos = positions[randIndex];
positions.splice(randIndex, 1);
// Get random square for queen
- randIndex = _.random(6);
- let queenPos = positions[randIndex];
- positions.splice(randIndex, 1);
-
- // ...random square for camels
- randIndex = _.random(5);
- let camel1Pos = positions[randIndex];
- positions.splice(randIndex, 1);
randIndex = _.random(4);
- let camel2Pos = positions[randIndex];
+ let queenPos = positions[randIndex];
positions.splice(randIndex, 1);
// ...random square for wildebeest