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EventObject

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This commit is contained in:
Christoph Oelckers 2021-11-21 09:10:59 +01:00
parent 4928187b02
commit c2613d9720
1 changed files with 33 additions and 0 deletions
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33
source/games/blood/src/eventq.h
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@ -25,6 +25,39 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
BEGIN_BLD_NS
// Object storage helper that packs the value into 8 bytes. This depends on pointer alignment being a multiple of 8 bytes for actors
class EventObject
{
enum EType
{
Actor = 0,
Sector = 1,
Wall = 2
};
union
{
DBloodActor* ActorP;
uint64_t index;
};
EventObject() = default;
EventObject(DBloodActor* actor_) { ActorP = actor_; assert(isActor()); /* GC:WriteBarrier(actor);*/ }
EventObject(sectortype *sect) { index = (sectnum(sect) << 8) | Sector; }
EventObject(walltype* wall) { index = (wallnum(wall) << 8) | Wall; }
EventObject& operator=(DBloodActor* actor_) { ActorP = actor_; assert(isActor()); /* GC:WriteBarrier(actor);*/ return *this; }
EventObject& operator=(sectortype *sect) { index = (sectnum(sect) << 8) | Sector; return *this; }
EventObject& operator=(walltype* wall) { index = (wallnum(wall) << 8) | Wall; return *this; }
bool isActor() const { return (index&7) == Actor; }
bool isSector() const { return (index&7) == Sector; }
bool isWall() const { return (index&7) == Wall; }
DBloodActor* actor() const { assert(isActor()); return /*GC::ReadBarrier*/(ActorP); }
sectortype* sector() const { assert(isSector()); return &::sector[index >> 8]; }
walltype* wall() const { assert(isWall()); return &::wall[index >> 8]; }
};
enum {
kChannelZero = 0,