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SetLineRenderStyle ACS function

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SetLineRenderStyle(int tag, int blend, int alpha)

Changes the blend mode and transparency of a linedef. Requires new compiler config for the blend mode constants.
This commit is contained in:
Sally Coolatta 2023-03-10 03:09:59 -05:00
parent c8ccb13614
commit 28354ec70e
3 changed files with 52 additions and 0 deletions
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49
src/acs/call-funcs.cpp
View file

@ -1408,3 +1408,52 @@ bool CallFunc_PodiumFinish(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM
K_FinishCeremony();
return false;
}
/*--------------------------------------------------
bool CallFunc_SetLineRenderStyle(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
Changes a linedef's blend mode and alpha.
--------------------------------------------------*/
bool CallFunc_SetLineRenderStyle(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
{
mtag_t tag = 0;
patchalphastyle_t blend = AST_COPY;
fixed_t alpha = FRACUNIT;
INT32 lineId = -1;
tag = argV[0];
switch (argV[1])
{
case TMB_TRANSLUCENT:
default:
blend = AST_COPY;
break;
case TMB_ADD:
blend = AST_ADD;
break;
case TMB_SUBTRACT:
blend = AST_SUBTRACT;
break;
case TMB_REVERSESUBTRACT:
blend = AST_REVERSESUBTRACT;
break;
case TMB_MODULATE:
blend = AST_MODULATE;
break;
}
alpha = argV[2];
alpha = std::clamp(alpha, 0, FRACUNIT);
TAG_ITER_LINES(tag, lineId)
{
line_t *line = &lines[lineId];
line->blendmode = blend;
line->alpha = alpha;
}
return false;
}

2
src/acs/call-funcs.hpp
View file

@ -88,4 +88,6 @@ bool CallFunc_EncoreMode(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::
bool CallFunc_PodiumPosition(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
bool CallFunc_PodiumFinish(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
bool CallFunc_SetLineRenderStyle(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
#endif // __SRB2_ACS_CALL_FUNCS_HPP__

1
src/acs/environment.cpp
View file

@ -165,6 +165,7 @@ Environment::Environment()
addFuncDataACS0( 500, addCallFunc(CallFunc_CameraWait));
addFuncDataACS0( 501, addCallFunc(CallFunc_PodiumPosition));
addFuncDataACS0( 502, addCallFunc(CallFunc_PodiumFinish));
addFuncDataACS0( 503, addCallFunc(CallFunc_SetLineRenderStyle));
}
ACSVM::Thread *Environment::allocThread()