Function drawRegularPoly

src/engineDraw.js:607–621

Draw colored regular polygon using passed in number of sides * @param {Vector2} pos * @param {Vector2} [size=vec2(1)] * @param {number} [sides] * @param {Color} [color=WHITE] * @param {number} [lineWidth] * @param {Color} [lineColor=BLACK] * @param {number} [angle] * @param {b

(pos, size=vec2(1), sides=3, color=WHITE, lineWidth=0, lineColor=BLACK, angle=0, useWebGL=glEnable, screenSpace=false, context)

 *  @param {CanvasRenderingContext2D|OffscreenCanvasRenderingContext2D} [context]
 *  @memberof Draw */
function drawRegularPoly(pos, size=vec2(1), sides=3, color=WHITE, lineWidth=0, lineColor=BLACK, angle=0, useWebGL=glEnable, screenSpace=false, context)
{
    ASSERT(isVector2(size), 'size must be a vec2');
    ASSERT(isNumber(sides), 'sides must be a number');

    // build regular polygon points
    const points = [];
    const sizeX = size.x/2, sizeY = size.y/2;
    for (let i=sides; i--;)
    {
        const a = (i/sides)*PI*2;
        points.push(vec2(sin(a)*sizeX, cos(a)*sizeY));
    }
    drawPoly(points, color, lineWidth, lineColor, pos, angle, useWebGL, screenSpace, context);
}

/** Draw colored polygon using passed in points
 *  @param {Array<Vector2>} points - Array of Vector2 points