Rounded rect for DrawNode in Cocos2d-x

CCDrawNode.cpp

void DrawNode::drawSolidRoundedRect(const Vec2 &origin, const Vec2 &destination, float radius, unsigned int segments, const Color4F &color)
{
    const float coef = 2.0f * (float)M_PI/(segments - 8);

    Vec2 *vertices = new (std::nothrow) Vec2[segments];
    if( ! vertices )
        return;

    // Draw right edge
    vertices[0].x = destination.x;
    vertices[0].y = origin.y + radius;
    vertices[1].x = destination.x;
    vertices[1].y = destination.y - radius;

    unsigned int quadrant = 1;
    unsigned int radsI = 0;
    for(unsigned int i = 2; i <= segments; i++) {
        float rads = radsI*coef;
        GLfloat j = radius * cosf(rads);
        GLfloat k = radius * sinf(rads);

        if (rads < M_PI_2 || rads > M_PI + M_PI_2) {
            if (quadrant == 3) {
                // Draw bottom edge
                vertices[i].x = origin.x + radius;
                vertices[i].y = origin.y;
                i++;
                vertices[i].x = destination.x - radius;
                vertices[i].y = origin.y;

                quadrant++;
                continue;
            }
            j += destination.x - radius;
        } else {
            if (quadrant == 1) {
                // Draw top edge
                vertices[i].x = destination.x - radius;
                vertices[i].y = destination.y;
                i++;
                vertices[i].x = origin.x + radius;
                vertices[i].y = destination.y;

                quadrant++;
                continue;
            }
            j += origin.x + radius;
        }

        if (rads < M_PI) {
            k += destination.y - radius;
        } else {
            if (quadrant == 2) {
                // Draw left edge
                vertices[i].x = origin.x;
                vertices[i].y = destination.y - radius;
                i++;
                vertices[i].x = origin.x;
                vertices[i].y = origin.y + radius;

                quadrant++;
                continue;
            }
            k += origin.y + radius;
        }

        vertices[i].x = j;
        vertices[i].y = k;

        radsI++;
    }

    drawSolidPoly(vertices, segments, color);

    CC_SAFE_DELETE_ARRAY(vertices);
}

Use segments+1 in line 5 to prevent crashes!