Adds init(array) for Sequence and Spawn

it also makes the code cleaner.
this is needed for JS

cocos/2d/CCActionInterval.cpp

@@ -238,29 +238,30 @@ Sequence* Sequence::createWithVariableList(FiniteTimeAction *action1, va_list ar
 
 Sequence* Sequence::create(const Vector<FiniteTimeAction*>& arrayOfActions)
 {
-    Sequence* ret = nullptr;
-    do 
+    Sequence* seq = new (std::nothrow) Sequence;
+
+    if (seq && seq->init(arrayOfActions))
+        seq->autorelease();
+    return seq;
+}
+
+bool Sequence::init(const Vector<FiniteTimeAction*>& arrayOfActions)
 {
     auto count = arrayOfActions.size();
-        CC_BREAK_IF(count == 0);
+    if (count == 0)
+        return true;
 
+    if (count == 1)
+        return initWithTwoActions(arrayOfActions.at(0), ExtraAction::create());
+
+    // else size > 1
     auto prev = arrayOfActions.at(0);
-
-        if (count > 1)
-        {
-            for (int i = 1; i < count; ++i)
+    for (int i = 1; i < count-1; ++i)
     {
         prev = createWithTwoActions(prev, arrayOfActions.at(i));
     }
-        }
-        else
-        {
-            // If only one action is added to Sequence, make up a Sequence by adding a simplest finite time action.
-            prev = createWithTwoActions(prev, ExtraAction::create());
-        }
-        ret = static_cast<Sequence*>(prev);
-    }while (0);
-    return ret;
+
+    return initWithTwoActions(prev, arrayOfActions.at(count-1));
 }
 
 bool Sequence::initWithTwoActions(FiniteTimeAction *actionOne, FiniteTimeAction *actionTwo)
@@ -633,27 +634,10 @@ Spawn* Spawn::createWithVariableList(FiniteTimeAction *action1, va_list args)
 
 Spawn* Spawn::create(const Vector<FiniteTimeAction*>& arrayOfActions)
 {
-    Spawn* ret = nullptr;
-    do 
-    {
-        auto count = arrayOfActions.size();
-        CC_BREAK_IF(count == 0);
-        auto prev = arrayOfActions.at(0);
-        if (count > 1)
-        {
-            for (int i = 1; i < arrayOfActions.size(); ++i)
-            {
-                prev = createWithTwoActions(prev, arrayOfActions.at(i));
-            }
-        }
-        else
-        {
-            // If only one action is added to Spawn, make up a Spawn by adding a simplest finite time action.
-            prev = createWithTwoActions(prev, ExtraAction::create());
-        }
-        ret = static_cast<Spawn*>(prev);
-    }while (0);
+    Spawn* ret = new (std::nothrow) Spawn;
 
+    if (ret && ret->init(arrayOfActions))
+        ret->autorelease();
     return ret;
 }
 
@@ -666,6 +650,26 @@ Spawn* Spawn::createWithTwoActions(FiniteTimeAction *action1, FiniteTimeAction *
     return spawn;
 }
 
+bool Spawn::init(const Vector<FiniteTimeAction*>& arrayOfActions)
+{
+    auto count = arrayOfActions.size();
+
+    if (count == 0)
+        return true;
+
+    if (count == 1)
+        return initWithTwoActions(arrayOfActions.at(0), ExtraAction::create());
+
+    // else count > 1
+    auto prev = arrayOfActions.at(0);
+    for (int i = 1; i < count-1; ++i)
+    {
+        prev = createWithTwoActions(prev, arrayOfActions.at(i));
+    }
+
+    return initWithTwoActions(prev, arrayOfActions.at(count-1));
+}
+
 bool Spawn::initWithTwoActions(FiniteTimeAction *action1, FiniteTimeAction *action2)
 {
     CCASSERT(action1 != nullptr, "action1 can't be nullptr!");

cocos/2d/CCActionInterval.h

@@ -192,6 +192,7 @@ CC_CONSTRUCTOR_ACCESS:
 
     /** initializes the action */
     bool initWithTwoActions(FiniteTimeAction *pActionOne, FiniteTimeAction *pActionTwo);
+    bool init(const Vector<FiniteTimeAction*>& arrayOfActions);
 
 protected:
     FiniteTimeAction *_actions[2];
@@ -417,6 +418,7 @@ CC_CONSTRUCTOR_ACCESS:
 
     /** initializes the Spawn action with the 2 actions to spawn */
     bool initWithTwoActions(FiniteTimeAction *action1, FiniteTimeAction *action2);
+    bool init(const Vector<FiniteTimeAction*>& arrayOfActions);
 
 protected:
     FiniteTimeAction *_one;

tests/cpp-tests/Classes/ActionsTest/ActionsTest.cpp

@@ -35,6 +35,9 @@ USING_NS_CC;
 
 ActionsTests::ActionsTests()
 {
+    ADD_TEST_CASE(ActionSequence3);
+    ADD_TEST_CASE(ActionSpawn2);
+
     ADD_TEST_CASE(ActionMove);
     ADD_TEST_CASE(ActionMove3D);
     ADD_TEST_CASE(ActionRotate);
@@ -54,6 +57,7 @@ ActionsTests::ActionsTests()
     ADD_TEST_CASE(ActionAnimate);
     ADD_TEST_CASE(ActionSequence);
     ADD_TEST_CASE(ActionSequence2);
+    ADD_TEST_CASE(ActionSequence3);
     ADD_TEST_CASE(ActionRemoveSelf);
     ADD_TEST_CASE(ActionSpawn);
     ADD_TEST_CASE(ActionReverse);
@@ -776,6 +780,37 @@ std::string ActionSequence2::subtitle() const
     return "Sequence of InstantActions";
 }
 
+//------------------------------------------------------------------
+//
+//    ActionSequence3
+//
+//------------------------------------------------------------------
+void ActionSequence3::onEnter()
+{
+    ActionsDemo::onEnter();
+
+    alignSpritesLeft(1);
+
+    // Uses Array API
+    auto action1 = MoveBy::create(2, Vec2(240,0));
+    auto action2 = RotateBy::create(2, 540);
+    auto action3 = action1->reverse();
+    auto action4 = action2->reverse();
+
+    Vector<FiniteTimeAction*> array;
+    array.pushBack(action1);
+    array.pushBack(action2);
+    array.pushBack(action3);
+    array.pushBack(action4);
+    auto action = Sequence::create(array);
+    _grossini->runAction(action);
+}
+
+std::string ActionSequence3::subtitle() const
+{
+    return "Sequence: Using Array API";
+}
+
 //------------------------------------------------------------------
 //
 // ActionCallFuncN
@@ -947,6 +982,33 @@ std::string ActionSpawn::subtitle() const
     return "Spawn: Jump + Rotate";
 }
 
+//------------------------------------------------------------------
+//
+// ActionSpawn2
+//
+//------------------------------------------------------------------
+
+void ActionSpawn2::onEnter()
+{
+    ActionsDemo::onEnter();
+
+    alignSpritesLeft(1);
+
+    auto action1 = JumpBy::create(2, Vec2(300,0), 50, 4);
+    auto action2 = RotateBy::create( 2,  720);
+
+    Vector<FiniteTimeAction*> array;
+    array.pushBack(action1);
+    array.pushBack(action2);
+
+    auto action = Spawn::create(array);
+    _grossini->runAction(action);
+}
+
+std::string ActionSpawn2::subtitle() const
+{
+    return "Spawn: using the Array API";
+}
 
 //------------------------------------------------------------------
 //

tests/cpp-tests/Classes/ActionsTest/ActionsTest.h

@@ -207,6 +207,15 @@ public:
     void callback3(Node* sender, long data);
 };
 
+class ActionSequence3 : public ActionsDemo
+{
+public:
+    CREATE_FUNC(ActionSequence3);
+
+    virtual void onEnter() override;
+    virtual std::string subtitle() const override;
+};
+
 class ActionSpawn : public ActionsDemo
 {
 public:
@@ -216,6 +225,15 @@ public:
     virtual std::string subtitle() const override;
 };
 
+class ActionSpawn2 : public ActionsDemo
+{
+public:
+    CREATE_FUNC(ActionSpawn2);
+
+    virtual void onEnter() override;
+    virtual std::string subtitle() const override;
+};
+
 class ActionReverse : public ActionsDemo
 {
 public: