/**
 * Generic Mask Stack data structure
 * @class
 * @memberof PIXI
 * @param size {number} Number of quads
 * @return {Uint16Array} indices
 */
const createIndicesForQuads = function (size)
{
    // the total number of indices in our array, there are 6 points per quad.

    let totalIndices = size * 6;

    let indices = new Uint16Array(totalIndices);

	// fill the indices with the quads to draw
    for (let i=0, j=0; i < totalIndices; i += 6, j += 4)
    {
        indices[i + 0] = j + 0;
        indices[i + 1] = j + 1;
        indices[i + 2] = j + 2;
        indices[i + 3] = j + 0;
        indices[i + 4] = j + 2;
        indices[i + 5] = j + 3;
    }

    return indices;
};

export default createIndicesForQuads;