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Add WorldLinePreActivated to override line activation, as a counterpart to WorldLineActivated.

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This commit is contained in:
Marisa Kirisame 2018-03-24 15:59:20 +01:00 committed by Christoph Oelckers
parent a4bee610b4
commit 0656916bf2
4 changed files with 38 additions and 2 deletions
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25
src/events.cpp
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@ -413,6 +413,12 @@ void E_WorldThingDestroyed(AActor* actor)
handler->WorldThingDestroyed(actor);
}
void E_WorldLinePreActivated(line_t* line, AActor* actor, bool* shouldactivate)
{
for (DStaticEventHandler* handler = E_FirstEventHandler; handler; handler = handler->next)
handler->WorldLinePreActivated(line, actor, shouldactivate);
}
void E_WorldLineActivated(line_t* line, AActor* actor)
{
for (DStaticEventHandler* handler = E_FirstEventHandler; handler; handler = handler->next)
@ -548,6 +554,7 @@ DEFINE_FIELD_X(WorldEvent, FWorldEvent, DamageType);
DEFINE_FIELD_X(WorldEvent, FWorldEvent, DamageFlags);
DEFINE_FIELD_X(WorldEvent, FWorldEvent, DamageAngle);
DEFINE_FIELD_X(WorldEvent, FWorldEvent, ActivatedLine);
DEFINE_FIELD_X(WorldEvent, FWorldEvent, ShouldActivate);
DEFINE_FIELD_X(PlayerEvent, FPlayerEvent, PlayerNumber);
DEFINE_FIELD_X(PlayerEvent, FPlayerEvent, IsReturn);
@ -634,6 +641,7 @@ DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldThingDied)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldThingRevived)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldThingDamaged)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldThingDestroyed)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldLinePreActivated)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldLineActivated)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldLightning)
DEFINE_EMPTY_HANDLER(DStaticEventHandler, WorldTick)
@ -796,6 +804,23 @@ void DStaticEventHandler::WorldThingDestroyed(AActor* actor)
}
}
void DStaticEventHandler::WorldLinePreActivated(line_t* line, AActor* actor, bool* shouldactivate)
{
IFVIRTUAL(DStaticEventHandler, WorldLinePreActivated)
{
// don't create excessive DObjects if not going to be processed anyway
if (func == DStaticEventHandler_WorldLinePreActivated_VMPtr)
return;
FWorldEvent e = E_SetupWorldEvent();
e.Thing = actor;
e.ActivatedLine = line;
e.ShouldActivate = *shouldactivate;
VMValue params[2] = { (DStaticEventHandler*)this, &e };
VMCall(func, params, 2, nullptr, 0);
*shouldactivate = e.ShouldActivate;
}
}
void DStaticEventHandler::WorldLineActivated(line_t* line, AActor* actor)
{
IFVIRTUAL(DStaticEventHandler, WorldLineActivated)

6
src/events.h
View file

@ -40,6 +40,8 @@ void E_WorldThingRevived(AActor* actor);
void E_WorldThingDamaged(AActor* actor, AActor* inflictor, AActor* source, int damage, FName mod, int flags, DAngle angle);
// called before AActor::Destroy of each actor.
void E_WorldThingDestroyed(AActor* actor);
// called in P_ActivateLine before executing special, set shouldactivate to false to prevent activation.
void E_WorldLinePreActivated(line_t* line, AActor* actor, bool* shouldactivate);
// called in P_ActivateLine after successful special execution.
void E_WorldLineActivated(line_t* line, AActor* actor);
// same as ACS SCRIPT_Lightning
@ -141,6 +143,7 @@ public:
void WorldThingRevived(AActor*);
void WorldThingDamaged(AActor*, AActor*, AActor*, int, FName, int, DAngle);
void WorldThingDestroyed(AActor*);
void WorldLinePreActivated(line_t*, AActor*, bool*);
void WorldLineActivated(line_t*, AActor*);
void WorldLightning();
void WorldTick();
@ -198,8 +201,9 @@ struct FWorldEvent
FName DamageType;
int DamageFlags = 0;
DAngle DamageAngle;
// for lineactivated
// for line(pre)activated
line_t* ActivatedLine = nullptr;
bool ShouldActivate = true;
};
struct FPlayerEvent

5
src/p_spec.cpp
View file

@ -189,6 +189,11 @@ bool P_ActivateLine (line_t *line, AActor *mo, int side, int activationType, DVe
return false;
}
// [MK] Use WorldLinePreActivated to decide if activation should continue
bool shouldactivate = true;
E_WorldLinePreActivated(line, mo, &shouldactivate);
if ( !shouldactivate ) return false;
bool remote = (line->special != 7 && line->special != 8 && (line->special < 11 || line->special > 14));
if (line->locknumber > 0 && !P_CheckKeys (mo, line->locknumber, remote)) return false;

4
wadsrc/static/zscript/events.txt
View file

@ -25,8 +25,9 @@ struct WorldEvent native play version("2.4")
native readonly Name DamageType;
native readonly EDmgFlags DamageFlags;
native readonly double DamageAngle;
// for lineactivated
// for line(pre)activated
native readonly Line ActivatedLine;
native bool ShouldActivate;
}
struct PlayerEvent native play version("2.4")
@ -302,6 +303,7 @@ class StaticEventHandler : Object native play version("2.4")
virtual native void WorldThingRevived(WorldEvent e);
virtual native void WorldThingDamaged(WorldEvent e);
virtual native void WorldThingDestroyed(WorldEvent e);
virtual native void WorldLinePreActivated(WorldEvent e);
virtual native void WorldLineActivated(WorldEvent e);
virtual native void WorldLightning(WorldEvent e); // for the sake of completeness.
virtual native void WorldTick();