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Added OverlayX/Y(int layer) 

- Retrieves the X/Y positions of an overlay.
- A_OverlayFlags and A_OverlayOffset now interpret a layer of 0 to mean 'use this calling layer'.
This commit is contained in:
Major Cooke 2016-10-08 11:04:12 -05:00 committed by Christoph Oelckers
parent a771a3edd4
commit 31ca5a1900
2 changed files with 51 additions and 3 deletions
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52
src/p_pspr.cpp
View File

@ -1006,7 +1006,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_OverlayOffset)
PARAM_FLOAT_OPT(wx) { wx = 0.; }
PARAM_FLOAT_OPT(wy) { wy = 32.; }
PARAM_INT_OPT(flags) { flags = 0; }
A_OverlayOffset(self, layer, wx, wy, flags);
A_OverlayOffset(self, ((layer != 0) ? layer : stateinfo->mPSPIndex), wx, wy, flags);
return 0;
}
@ -1033,10 +1033,10 @@ DEFINE_ACTION_FUNCTION(AActor, A_OverlayFlags)
PARAM_INT(flags);
PARAM_BOOL(set);
if (self->player == nullptr)
if (!ACTION_CALL_FROM_PSPRITE())
return 0;
DPSprite *pspr = self->player->FindPSprite(layer);
DPSprite *pspr = self->player->FindPSprite(((layer != 0) ? layer : stateinfo->mPSPIndex));
if (pspr == nullptr)
return 0;
@ -1049,6 +1049,52 @@ DEFINE_ACTION_FUNCTION(AActor, A_OverlayFlags)
return 0;
}
//---------------------------------------------------------------------------
//
// PROC OverlayX/Y
// Action function to return the X/Y of an overlay.
//---------------------------------------------------------------------------
static double GetOverlayPosition(AActor *self, int layer, bool gety)
{
if (layer)
{
DPSprite *pspr = self->player->FindPSprite(layer);
if (pspr != nullptr)
{
return gety ? (pspr->y) : (pspr->x);
}
}
return 0.;
}
DEFINE_ACTION_FUNCTION(AActor, OverlayX)
{
PARAM_ACTION_PROLOGUE;
PARAM_INT_OPT(layer) { layer = 0; }
if (ACTION_CALL_FROM_PSPRITE())
{
double res = GetOverlayPosition(self, ((layer != 0) ? layer : stateinfo->mPSPIndex), false);
ACTION_RETURN_FLOAT(res);
}
ACTION_RETURN_FLOAT(0.);
}
DEFINE_ACTION_FUNCTION(AActor, OverlayY)
{
PARAM_ACTION_PROLOGUE;
PARAM_INT_OPT(layer) { layer = 0; }
if (ACTION_CALL_FROM_PSPRITE())
{
double res = GetOverlayPosition(self, ((layer != 0) ? layer : stateinfo->mPSPIndex), true);
ACTION_RETURN_FLOAT(res);
}
ACTION_RETURN_FLOAT(0.);
}
//---------------------------------------------------------------------------
//
// PROC OverlayID

2
wadsrc/static/actors/actor.txt
View File

@ -58,6 +58,8 @@ ACTOR Actor native //: Thinker
native float GetSpriteRotation(int ptr = AAPTR_DEFAULT);
native int GetMissileDamage(int mask, int add, int ptr = AAPTR_DEFAULT);
action native int OverlayID();
action native float OverlayX(int layer = 0);
action native float OverlayY(int layer = 0);
// Action functions
// Meh, MBF redundant functions. Only for DeHackEd support.