Magic_Game/src/kiwano/2d/action/ActionTween.cpp

540 lines
14 KiB
C++

// Copyright (c) 2016-2018 Kiwano - Nomango
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#include <functional>
#include <kiwano/2d/Actor.h>
#include <kiwano/2d/action/ActionTween.h>
namespace kiwano
{
//-------------------------------------------------------
// Ease Functions
//-------------------------------------------------------
inline EaseFunc MakeEaseIn(float rate)
{
return std::bind(math::EaseIn, std::placeholders::_1, rate);
}
inline EaseFunc MakeEaseOut(float rate)
{
return std::bind(math::EaseOut, std::placeholders::_1, rate);
}
inline EaseFunc MakeEaseInOut(float rate)
{
return std::bind(math::EaseInOut, std::placeholders::_1, rate);
}
inline EaseFunc MakeEaseElasticIn(float period)
{
return std::bind(math::EaseElasticIn, std::placeholders::_1, period);
}
inline EaseFunc MakeEaseElasticOut(float period)
{
return std::bind(math::EaseElasticOut, std::placeholders::_1, period);
}
inline EaseFunc MakeEaseElasticInOut(float period)
{
return std::bind(math::EaseElasticInOut, std::placeholders::_1, period);
}
KGE_API EaseFunc Ease::Linear = math::Linear;
KGE_API EaseFunc Ease::EaseIn = MakeEaseIn(2.f);
KGE_API EaseFunc Ease::EaseOut = MakeEaseOut(2.f);
KGE_API EaseFunc Ease::EaseInOut = MakeEaseInOut(2.f);
KGE_API EaseFunc Ease::ExpoIn = math::EaseExponentialIn;
KGE_API EaseFunc Ease::ExpoOut = math::EaseExponentialOut;
KGE_API EaseFunc Ease::ExpoInOut = math::EaseExponentialInOut;
KGE_API EaseFunc Ease::BounceIn = math::EaseBounceIn;
KGE_API EaseFunc Ease::BounceOut = math::EaseBounceOut;
KGE_API EaseFunc Ease::BounceInOut = math::EaseBounceInOut;
KGE_API EaseFunc Ease::ElasticIn = MakeEaseElasticIn(0.3f);
KGE_API EaseFunc Ease::ElasticOut = MakeEaseElasticOut(0.3f);
KGE_API EaseFunc Ease::ElasticInOut = MakeEaseElasticInOut(0.3f);
KGE_API EaseFunc Ease::SineIn = math::EaseSineIn;
KGE_API EaseFunc Ease::SineOut = math::EaseSineOut;
KGE_API EaseFunc Ease::SineInOut = math::EaseSineInOut;
KGE_API EaseFunc Ease::BackIn = math::EaseBackIn;
KGE_API EaseFunc Ease::BackOut = math::EaseBackOut;
KGE_API EaseFunc Ease::BackInOut = math::EaseBackInOut;
KGE_API EaseFunc Ease::QuadIn = math::EaseQuadIn;
KGE_API EaseFunc Ease::QuadOut = math::EaseQuadOut;
KGE_API EaseFunc Ease::QuadInOut = math::EaseQuadInOut;
KGE_API EaseFunc Ease::CubicIn = math::EaseCubicIn;
KGE_API EaseFunc Ease::CubicOut = math::EaseCubicOut;
KGE_API EaseFunc Ease::CubicInOut = math::EaseCubicInOut;
KGE_API EaseFunc Ease::QuartIn = math::EaseQuartIn;
KGE_API EaseFunc Ease::QuartOut = math::EaseQuartOut;
KGE_API EaseFunc Ease::QuartInOut = math::EaseQuartInOut;
KGE_API EaseFunc Ease::QuintIn = math::EaseQuintIn;
KGE_API EaseFunc Ease::QuintOut = math::EaseQuintOut;
KGE_API EaseFunc Ease::QuintInOut = math::EaseQuintInOut;
//-------------------------------------------------------
// ActionTween
//-------------------------------------------------------
ActionTween::ActionTween()
: dur_()
, ease_func_(nullptr)
{
}
ActionTween::ActionTween(Duration duration, EaseFunc func)
: dur_(duration)
, ease_func_(func)
{
}
void ActionTween::Update(Actor* target, Duration dt)
{
float percent;
if (dur_.IsZero())
{
percent = 1.f;
Complete(target);
}
else
{
Duration elapsed = GetElapsed() - GetDelay();
float loops_done = elapsed / dur_;
while (GetLoopsDone() < static_cast<int>(loops_done))
{
Complete(target); // loops_done_++
}
percent = (GetStatus() == Status::Done) ? 1.f : (loops_done - static_cast<float>(GetLoopsDone()));
}
if (ease_func_)
percent = ease_func_(percent);
UpdateTween(target, percent);
}
//-------------------------------------------------------
// Move Action
//-------------------------------------------------------
ActionMoveByPtr ActionMoveBy::Create(Duration duration, Vec2 const& displacement)
{
ActionMoveByPtr ptr = new (std::nothrow) ActionMoveBy;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetDisplacement(displacement);
}
return ptr;
}
ActionMoveBy::ActionMoveBy() {}
void ActionMoveBy::Init(Actor* target)
{
if (target)
{
prev_pos_ = start_pos_ = target->GetPosition();
}
}
void ActionMoveBy::UpdateTween(Actor* target, float percent)
{
Point diff = target->GetPosition() - prev_pos_;
start_pos_ = start_pos_ + diff;
Point new_pos = start_pos_ + (displacement_ * percent);
target->SetPosition(new_pos);
prev_pos_ = new_pos;
}
ActionPtr ActionMoveBy::Clone() const
{
return ActionMoveBy::Create(GetDuration(), displacement_);
}
ActionPtr ActionMoveBy::Reverse() const
{
return ActionMoveBy::Create(GetDuration(), -displacement_);
}
ActionMoveToPtr ActionMoveTo::Create(Duration duration, Point const& distination)
{
ActionMoveToPtr ptr = new (std::nothrow) ActionMoveTo;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetDistination(distination);
}
return ptr;
}
ActionMoveTo::ActionMoveTo() {}
ActionPtr ActionMoveTo::Clone() const
{
return ActionMoveTo::Create(GetDuration(), distination_);
}
void ActionMoveTo::Init(Actor* target)
{
ActionMoveBy::Init(target);
displacement_ = distination_ - start_pos_;
}
//-------------------------------------------------------
// Jump Action
//-------------------------------------------------------
ActionJumpByPtr ActionJumpBy::Create(Duration duration, Vec2 const& displacement, float height, int count,
EaseFunc ease)
{
ActionJumpByPtr ptr = new (std::nothrow) ActionJumpBy;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetEaseFunc(ease);
ptr->SetJumpHeight(height);
ptr->SetJumpCount(count);
ptr->SetDisplacement(displacement);
}
return ptr;
}
ActionJumpBy::ActionJumpBy()
: height_(0.0f)
, jump_count_(0)
{
}
ActionPtr ActionJumpBy::Clone() const
{
return ActionJumpBy::Create(GetDuration(), displacement_, height_, jump_count_);
}
ActionPtr ActionJumpBy::Reverse() const
{
return ActionJumpBy::Create(GetDuration(), -displacement_, height_, jump_count_);
}
void ActionJumpBy::Init(Actor* target)
{
if (target)
{
prev_pos_ = start_pos_ = target->GetPosition();
}
}
void ActionJumpBy::UpdateTween(Actor* target, float percent)
{
float frac = fmod(percent * jump_count_, 1.f);
float x = displacement_.x * percent;
float y = height_ * 4 * frac * (1 - frac);
y += displacement_.y * percent;
Point diff = target->GetPosition() - prev_pos_;
start_pos_ = diff + start_pos_;
Point new_pos = start_pos_ + Point(x, y);
target->SetPosition(new_pos);
prev_pos_ = new_pos;
}
ActionJumpToPtr ActionJumpTo::Create(Duration duration, Point const& distination, float height, int count,
EaseFunc ease)
{
ActionJumpToPtr ptr = new (std::nothrow) ActionJumpTo;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetEaseFunc(ease);
ptr->SetJumpHeight(height);
ptr->SetJumpCount(count);
ptr->SetDistination(distination);
}
return ptr;
}
ActionJumpTo::ActionJumpTo() {}
ActionPtr ActionJumpTo::Clone() const
{
return ActionJumpTo::Create(GetDuration(), distination_, height_, jump_count_);
}
void ActionJumpTo::Init(Actor* target)
{
ActionJumpBy::Init(target);
displacement_ = distination_ - start_pos_;
}
//-------------------------------------------------------
// Scale Action
//-------------------------------------------------------
ActionScaleByPtr ActionScaleBy::Create(Duration duration, float scale_x, float scale_y)
{
ActionScaleByPtr ptr = new (std::nothrow) ActionScaleBy;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetScaleX(scale_x);
ptr->SetScaleY(scale_y);
}
return ptr;
}
ActionScaleBy::ActionScaleBy()
: delta_x_(0.0f)
, delta_y_(0.0f)
, start_scale_x_(0.f)
, start_scale_y_(0.f)
{
}
void ActionScaleBy::Init(Actor* target)
{
if (target)
{
start_scale_x_ = target->GetScaleX();
start_scale_y_ = target->GetScaleY();
}
}
void ActionScaleBy::UpdateTween(Actor* target, float percent)
{
target->SetScale(Vec2{ start_scale_x_ + delta_x_ * percent, start_scale_y_ + delta_y_ * percent });
}
ActionPtr ActionScaleBy::Clone() const
{
return ActionScaleBy::Create(GetDuration(), delta_x_, delta_y_);
}
ActionPtr ActionScaleBy::Reverse() const
{
return ActionScaleBy::Create(GetDuration(), -delta_x_, -delta_y_);
}
ActionScaleToPtr ActionScaleTo::Create(Duration duration, float scale_x, float scale_y)
{
ActionScaleToPtr ptr = new (std::nothrow) ActionScaleTo;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetTargetScaleX(scale_x);
ptr->SetTargetScaleY(scale_y);
}
return ptr;
}
ActionScaleTo::ActionScaleTo()
: end_scale_x_(0.0f)
, end_scale_y_(0.0f)
{
}
ActionPtr ActionScaleTo::Clone() const
{
return ActionScaleTo::Create(GetDuration(), end_scale_x_, end_scale_y_);
}
void ActionScaleTo::Init(Actor* target)
{
ActionScaleBy::Init(target);
delta_x_ = end_scale_x_ - start_scale_x_;
delta_y_ = end_scale_y_ - start_scale_y_;
}
//-------------------------------------------------------
// Opacity Action
//-------------------------------------------------------
ActionFadeToPtr ActionFadeTo::Create(Duration duration, float opacity)
{
ActionFadeToPtr ptr = new (std::nothrow) ActionFadeTo;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetTargetOpacity(opacity);
}
return ptr;
}
ActionFadeTo::ActionFadeTo()
: delta_val_(0.0f)
, start_val_(0.f)
, end_val_(0.0f)
{
}
void ActionFadeTo::Init(Actor* target)
{
if (target)
{
start_val_ = target->GetOpacity();
delta_val_ = end_val_ - start_val_;
}
}
void ActionFadeTo::UpdateTween(Actor* target, float percent)
{
target->SetOpacity(start_val_ + delta_val_ * percent);
}
ActionPtr ActionFadeTo::Clone() const
{
return ActionFadeTo::Create(GetDuration(), end_val_);
}
ActionFadeInPtr ActionFadeIn::Create(Duration duration)
{
ActionFadeInPtr ptr = new (std::nothrow) ActionFadeIn;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetTargetOpacity(1.0f);
}
return ptr;
}
ActionFadeOutPtr ActionFadeOut::Create(Duration duration)
{
ActionFadeOutPtr ptr = new (std::nothrow) ActionFadeOut;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetTargetOpacity(0.0f);
}
return ptr;
}
//-------------------------------------------------------
// Rotate Action
//-------------------------------------------------------
ActionRotateByPtr ActionRotateBy::Create(Duration duration, float rotation)
{
ActionRotateByPtr ptr = new (std::nothrow) ActionRotateBy;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetRotation(rotation);
}
return ptr;
}
ActionRotateBy::ActionRotateBy()
: start_val_(0.0f)
, delta_val_(0.0f)
{
}
void ActionRotateBy::Init(Actor* target)
{
if (target)
{
start_val_ = target->GetRotation();
}
}
void ActionRotateBy::UpdateTween(Actor* target, float percent)
{
float rotation = start_val_ + delta_val_ * percent;
if (rotation > 360.f)
rotation -= 360.f;
target->SetRotation(rotation);
}
ActionPtr ActionRotateBy::Clone() const
{
return ActionRotateBy::Create(GetDuration(), delta_val_);
}
ActionPtr ActionRotateBy::Reverse() const
{
return ActionRotateBy::Create(GetDuration(), -delta_val_);
}
ActionRotateToPtr ActionRotateTo::Create(Duration duration, float rotation)
{
ActionRotateToPtr ptr = new (std::nothrow) ActionRotateTo;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetTargetRotation(rotation);
}
return ptr;
}
ActionRotateTo::ActionRotateTo()
: end_val_(0.0f)
{
}
ActionPtr ActionRotateTo::Clone() const
{
return ActionRotateTo::Create(GetDuration(), end_val_);
}
void ActionRotateTo::Init(Actor* target)
{
ActionRotateBy::Init(target);
delta_val_ = end_val_ - start_val_;
}
//-------------------------------------------------------
// ActionCustom
//-------------------------------------------------------
ActionCustomPtr ActionCustom::Create(Duration duration, TweenFunc tween_func)
{
ActionCustomPtr ptr = new (std::nothrow) ActionCustom;
if (ptr)
{
ptr->SetDuration(duration);
ptr->SetTweenFunc(tween_func);
}
return ptr;
}
ActionCustom::ActionCustom() {}
ActionPtr ActionCustom::Clone() const
{
return ActionCustom::Create(GetDuration(), tween_func_);
}
void ActionCustom::Init(Actor* target)
{
if (!tween_func_)
this->Done();
}
void ActionCustom::UpdateTween(Actor* target, float percent)
{
if (tween_func_)
tween_func_(target, percent);
}
} // namespace kiwano