axmol/extensions/CocoStudio/Armature/utils/CCUtilMath.cpp

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#include "CCUtilMath.h"


namespace cocos2d { namespace extension { namespace armature {

bool isSpriteContainPoint(Sprite *_sprite, Point _point, Point &_outPoint)
{
    _outPoint = _sprite->convertToNodeSpace(_point);

    Size _s  = _sprite->getContentSize();
    Rect _r(0, 0, _s.width, _s.height);

    return _r.containsPoint(_outPoint);
}

bool isSpriteContainPoint(Sprite *_sprite, Point _point)
{
    Point _p = Point(0, 0);
    return isSpriteContainPoint(_sprite, _point, _p);
}


Point bezierTo(float t, Point &point1, Point &point2, Point &point3)
{

    Point p;

    p.x = pow((1 - t), 2) * point1.x + 2 * t * (1 - t) * point2.x + pow(t, 2) * point3.x;
    p.y = pow((1 - t), 2) * point1.y + 2 * t * (1 - t) * point2.y + pow(t, 2) * point3.y;

    return p;
}

Point bezierTo(float t, Point &point1, Point &point2, Point &point3, Point &point4)
{
    Point p;

    p.x = point1.x * pow((1 - t), 3) + 3 * t * point2.x * pow((1 - t), 2) + 3 * point3.x * pow(t, 2) * (1 - t) + point4.x * pow(t, 3);
    p.y = point1.y * pow((1 - t), 3) + 3 * t * point2.y * pow((1 - t), 2) + 3 * point3.y * pow(t, 2) * (1 - t) + point4.y * pow(t, 3);

    return p;
}

Point circleTo(float t, Point &center, float radius, float fromRadian, float radianDif)
{
    Point p;

    p.x = center.x + radius * cos(fromRadian + radianDif * t);
    p.y = center.y + radius * sin(fromRadian + radianDif * t);

    return p;
}

}}} // namespace cocos2d { namespace extension { namespace armature {