CUMoveAction.h

//
//  CUMoveAction.h
//  Cornell University Game Library (CUGL)
//
//  This module provides support for the movement actions.  Movement can specified
//  as either the end target or the movement amount.
//
//  These classes use our standard shared-pointer architecture.
//
//  1. The constructor does not perform any initialization; it just sets all
//     attributes to their defaults.
//
//  2. All initialization takes place via init methods, which can fail if an
//     object is initialized more than once.
//
//  3. All allocation takes place via static constructors which return a shared
//     pointer.
//
//  CUGL zlib License:
//      This software is provided 'as-is', without any express or implied
//      warranty.  In no event will the authors be held liable for any damages
//      arising from the use of this software.
//
//      Permission is granted to anyone to use this software for any purpose,
//      including commercial applications, and to alter it and redistribute it
//      freely, subject to the following restrictions:
//
//      1. The origin of this software must not be misrepresented; you must not
//      claim that you wrote the original software. If you use this software
//      in a product, an acknowledgment in the product documentation would be
//      appreciated but is not required.
//
//      2. Altered source versions must be plainly marked as such, and must not
//      be misrepresented as being the original software.
//
//      3. This notice may not be removed or altered from any source distribution.
//
//  Author: Sophie Huang and Walker White
//  Version: 3/12/17
//
#ifndef __CU_MOVE_ACTION_H__
#define __CU_MOVE_ACTION_H__

#include "CUAction.h"

namespace cugl {

#pragma mark -
#pragma mark MoveBy

class MoveBy : public Action {
protected:
    Vec2 _delta;

public:
#pragma mark Constructors

    MoveBy() { _delta = Vec2::ZERO; }

    ~MoveBy() { dispose(); }
    
    void dispose() { _delta = Vec2::ZERO; }
    
    bool init() {
        return init(Vec2(0.0,0.0), 0.0f);
    }
    
    bool init(const Vec2& delta) {
        return init(delta,0.0f);
    }
    
    bool init(const Vec2& delta, float time);
    
#pragma mark Static Constructors

    static std::shared_ptr<MoveBy> alloc() {
        std::shared_ptr<MoveBy> result = std::make_shared<MoveBy>();
        return (result->init() ? result : nullptr);
    }
    
    static std::shared_ptr<MoveBy> alloc(const Vec2& delta) {
        std::shared_ptr<MoveBy> result = std::make_shared<MoveBy>();
        return (result->init(delta) ? result : nullptr);
    }
    
    static std::shared_ptr<MoveBy> alloc(const Vec2& delta, float time) {
        std::shared_ptr<MoveBy> result = std::make_shared<MoveBy>();
        return (result->init(delta,time) ? result : nullptr);
    }

#pragma mark Atributes

    const Vec2& getDelta() const { return _delta; }

    void setDelta(const Vec2& delta) { _delta = delta; }
    
#pragma mark Animation Methods

    virtual std::shared_ptr<Action> clone() override;
    
    virtual void update(const std::shared_ptr<Node>& target, Uint64* state, float dt) override;

#pragma mark Debugging Methods

    virtual std::string toString(bool verbose = false) const override;
};


#pragma mark -
#pragma mark MoveTo

class MoveTo : public Action {
protected:
    Vec2 _target;

public:
#pragma mark Constructors

    MoveTo() { _target = Vec2::ZERO; }

    ~MoveTo() { dispose(); }
    
    void dispose() { _target = Vec2::ZERO; }
    
    bool init() {
        return init(Vec2(0.0, 0.0), 0.0f);
    }
    
    bool init(const Vec2& target) {
        return init(target,0.0f);
    }
    
    bool init(const Vec2& target, float time);

#pragma mark Static Constructors

    static std::shared_ptr<MoveTo> alloc() {
        std::shared_ptr<MoveTo> result = std::make_shared<MoveTo>();
        return (result->init() ? result : nullptr);
    }
    
    static std::shared_ptr<MoveTo> alloc(const Vec2& target) {
        std::shared_ptr<MoveTo> result = std::make_shared<MoveTo>();
        return (result->init(target) ? result : nullptr);
    }
    
    static std::shared_ptr<MoveTo> alloc(const Vec2& target, float time) {
        std::shared_ptr<MoveTo> result = std::make_shared<MoveTo>();
        return (result->init(target, time) ? result : nullptr);
    }

#pragma mark Attributes

    const Vec2& getTarget() const { return _target; }
    
    void setTarget(const Vec2& target) { _target = target; }
    
#pragma mark Animation Methods

    virtual std::shared_ptr<Action> clone() override;
    
    virtual void load(const std::shared_ptr<Node>& target, Uint64* state) override;
    
    virtual void update(const std::shared_ptr<Node>& target, Uint64* state, float dt) override;
    
#pragma mark Debugging Methods

    virtual std::string toString(bool verbose = false) const override;
};

}
#endif /* __CU_MOVE_ACTION_H__ */