phaser3-rex-plugins/plugins/gameobjects/container/gridtable/methods/PointToCell.js

Plugins of phaser3

// Return null if (x, y) is out of any cell, or that cell is invisible
var PointToCellIndex = function (x, y) {
    y -= (this.y + this.topLeftY);
    x -= (this.x + this.topLeftX);
    if (
        (x < 0) || (x >= this.displayWidth) ||
        (y < 0) || (y >= this.displayHeight)
    ) {
        return null;
    }

    var offsetTableOY = this.tableOY - ((this.scrollMode === 0) ? y : x);
    var offsetTableOX = this.tableOX - ((this.scrollMode === 0) ? x : y);

    var table = this.table;
    var rowIdx = table.heightToRowIndex(-offsetTableOY, 0);
    var colIdx = table.widthToColIndex(-offsetTableOX);
    var cellIdx = table.colRowToCellIndex(colIdx, rowIdx);
    if (cellIdx === null) {
        return null;
    }
    if (!this.isCellVisible(cellIdx)) {
        return null;
    }
    return cellIdx;
}

var PointToCellContainer = function (x, y) {
    var cellIdx = PointToCellIndex.call(this, x, y);
    if (cellIdx === null) {
        return undefined;
    }
    return this.getCellContainer(cellIdx);
}

export { PointToCellIndex, PointToCellContainer };