Class Position

Description

Get position above

Example

const pos = new Position(1, 1);
const abovePos = pos.above();
console.log(abovePos); // { x: 1, y: 0 }
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Description

Get 8 positions (top, right, bottom, left, upper left, upper right, lower right, lower left)

Example

const pos = new Position(1, 1);
const [topPos, rightPos, bottomPos, leftPos, upperLeftPos, upperRightPos, lowerRightPos, lowerLeftPos] = pos.allNears();
console.log(topPos); // { x: 1, y: 0 }
console.log(rightPos); // { x: 2, y: 1 }
console.log(bottomPos); // { x: 1, y: 2 }
console.log(leftPos); // { x: 0, y: 1 }
console.log(upperLeftPos); // { x: 0, y: 0 }
console.log(upperRightPos); // { x: 2, y: 0 }
console.log(lowerRightPos); // { x: 2, y: 2 }
console.log(lowerLeftPos); // { x: 0, y: 2 }
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Description

Get position below

Example

const pos = new Position(1, 1);
const belowPos = pos.below();
console.log(belowPos); // { x: 1, y: 2 }
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Description

Clone this object

Description

Get distance between two positions

Example

const pos1 = new Position(1, 1);
const pos2 = new Position(1, 2);
const distance = pos1.distance(pos2);
console.log(distance); //  | 1 - 1 | + | 2 - 1 | = 1
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Example

const pos1 = new Position(1, 1);
const pos2 = new Position(1, 2);
const distance = pos1.distance(pos2, 'euclid');
console.log(distance); // sqrt((1 - 1) ^ 2 + (2 - 1) ^ 2) = 1
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Description

Get position down

Example

const pos = new Position(1, 1);
const downPos = pos.down();
console.log(downPos); // { x: 2, y: 1 }
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Description

Get position by action param

Example

const pos = new Position(1, 1);
const posByActionParam = pos.getPositionByActionParam('UP');
console.log(posByActionParam); // { x: 1, y: 0 }
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Description

Check if the position is equal

Example

const pos1 = new Position(1, 1);
const pos2 = new Position(1, 1);
const isEqual = pos1.equals(pos2)
console.log(isEqual) // true
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Description

Check if the position is near

Example

const pos1 = new Position(1, 1);
const pos2 = new Position(1, 2);
const isNear = pos1.isNear(pos2)
console.log(isNear) // true
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Example

const pos1 = new Position(1, 1);
const pos2 = new Position(1, 3);
const isNear = pos1.isNear(pos2)
console.log(isNear) // false
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Description

Check if the position is valid

Example

const pos = new Position(1, 1);
const isValid = pos.isValid(10, 10);
console.log(isValid); // true
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Example

const pos = new Position(-1, 1);
const isValid = pos.isValid(10, 10);
console.log(isValid); // false
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Description

Get left position

Example

const pos = new Position(1, 1);
const leftPos = pos.left();
console.log(leftPos); // { x: 0, y: 1 }
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Description

Get lower left position

Example

const pos = new Position(1, 1);
const lowerLeftPos = pos.lowerLeft();
console.log(lowerLeftPos); // { x: 0, y: 2 }
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Description

Get lower right position

Example

const pos = new Position(1, 1);
const lowerRightPos = pos.lowerRight();
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Description

Get right position

Example

const pos = new Position(1, 1);
const rightPos = pos.right();
console.log(rightPos); // { x: 2, y: 1 }
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Description

Get 4 positions (top, right, bottom, left)

Example

const pos = new Position(1, 1);
const [topPos, rightPos, bottomPos, leftPos] = pos.topRightBottomLeft();
console.log(topPos); // { x: 1, y: 0 }
console.log(rightPos); // { x: 2, y: 1 }
console.log(bottomPos); // { x: 1, y: 2 }
console.log(leftPos); // { x: 0, y: 1 }
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Description

Get position up

Example

const pos = new Position(1, 1);
const upPos = pos.up();
console.log(upPos); // { x: 0, y: 1 }
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Description

Get upper left position

Example

const pos = new Position(1, 1);
const upperLeftPos = pos.upperLeft();
console.log(upperLeftPos); // { x: 0, y: 0 }
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Description

Get 4 positions (upper left, upper right, lower right, lower left)

Example

const pos = new Position(1, 1);
const [upperLeftPos, upperRightPos, lowerRightPos, lowerLeftPos] = pos.upperLeftUpperRightLowerRightLowerLeft();
console.log(upperLeftPos); // { x: 0, y: 0 }
console.log(upperRightPos); // { x: 2, y: 0 }
console.log(lowerRightPos); // { x: 2, y: 2 }
console.log(lowerLeftPos); // { x: 0, y: 2 }
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Description

Get upper right position

Example

const pos = new Position(1, 1);
const upperRightPos = pos.upperRight();
console.log(upperRightPos); // { x: 2, y: 0 }
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Description

Get 4 positions [(x, 0), (x, height - 1), (0, y), (width - 1, y)]