Makes `CelSprite` unowned and adds a new `OwnedCelSprite` class for
owned sprites.
This clarifies ownership and makes the code cleaner in a number of
places.
Additionally, because the `CelSprite` class is now tiny (1 less
pointer), we can pass it by-value instead of by-reference, removing a
pointer indirection in the rendering functions.
The use on PlayerAnimationData could be further simplified by adding a helper to PlayerStruct but that'd be introducing another changed file to the PR... Something for later.
The monster version is only used once thanks to the helpers added in previous commits. This was mainly to highlight the similarity between PlayerAnimationData and AnimStruct, AnimStruct could inherit/extend PlayerAnimationData without much trouble.
Identified and removed an instance of Direction being used as an argument for a bool parameter
Removed a single-use temporary variable being cast from sprite frame to direction to size_t
Co-authored-by: Anders Jenbo <anders@jenbo.dk>
Fix alignment of WalkSettings array
* Update random number functions to avoid IB
Most calls to set seed were using uint32_t already, there were a few variables which were better served by having their type changed from signed to unsigned. The one exception is ItemStruct::_iSeed. This is an identifier that also happens to be used as a seed occasionally so a comment was added documenting this exception.
Includes suggested style changes for Source/towners.h; Source/towners.cpp; Source/msg.h; Source/multi.h