CCActionSequence Class Reference
| Inherits from | CCActionInterval : CCActionFiniteTime : CCAction : NSObject |
|---|---|
| Conforms to | NSCopying |
| Declared in | CCActionInterval.h |
Overview
This action allows actions to be executed sequentially, meaning one after another.
Usage example with action1 through action3 being already declared actions which directly or indirectly inherit from CCActionFiniteTime:
NSArray* actionsArray = @[action1, action2, action3];
id sequence = [CCActionSequence actionsWithArray:actionsArray];
[self runAction:sequence];
The traditional way still works, is less verbose but potentially dangerous, see warning below:
id sequence = [CCActionSequence actions:action1, action2, action3, nil];
[self runAction:sequence];
Warning: Terminating the actions: list with nil is mandatory. Failure to do so will result in a compiler warning: “Missing sentinal in method dispatch”. If you run the app anyway it will cause a crash (EXC_BAD_ACCESS) when creating the sequence.
Note: In order to spawn multiple actions at the same time from within the sequence, use CCActionSpawn.
Creating a Sequence Action
+ actions:
Helper constructor to create an array of sequence-able actions.
+ (id)actions:(CCActionFiniteTime *)action1, ...Parameters
action1 |
First action to add to sequence. |
|---|---|
... |
nil-terminated list of actions to sequence. |
Return Value
A New action sequence.
Discussion
Warning: List must be nil-terminated. Not doing so results in “Missing sentinal in method dispatch” warning, which will crash the app if ignored.
Declared In
CCActionInterval.h
+ actions:vaList:
Helper constructor to create an array of sequence-able actions.
+ (id)actions:(CCActionFiniteTime *)action1 vaList:(va_list)argsParameters
action1 |
Action to sequence. |
|---|---|
args |
C/C++ variadic arguments list (va_list) of actions. |
Return Value
New action sequence.
Discussion
Note: The usual C/C++ memory management and va_list usage principles apply.
Declared In
CCActionInterval.h
+ actionWithArray:
Helper constructor to create an array of sequence-able actions given an array. Recommended, safe initializer.
+ (id)actionWithArray:(NSArray *)arrayOfActionsParameters
arrayOfActions |
Array of actions to sequence. |
|---|
Return Value
New action sequence.
Declared In
CCActionInterval.h