Make World Accessible for CSQC getsurface functions ...

[Baker7]

The CSQC getsurface functions fail in CSQC always because the modelindex is 0 (because it is not set).

To make it work, requires a single line of code ... (the world is always modelindex 1)

csprogs.c ===> CL_VM_Init ...

	// set map description (use world entity 0)
	PRVM_clientedictstring(prog->edicts, message) = PRVM_SetEngineString(prog, cl.worldmessage);
	
	PRVM_clientedictfloat(prog->edicts, modelindex) = 1; // Baker: World is always 1 - August 14 2025 <=== this line
	VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, mins));
	VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, maxs));
	VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, absmin));
	VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, absmax));

I made it work in CSQC_Init I set world.modelindex = 1 --- the engine hates that and prints a warning, but makes it work with DarkPlaces 2014 or later version so at least I get to keep maximum compatibility.

Link to DarkPlaces 2014 or later mod using the above https://www.moddb.com/mods/zircon-engine/downloads/csqc-rain-snow-ultra-hd-for-almost-any-mod

[hemebond]

Isn't the line you added the same as

DarkPlaces/csprogs.c

Line 1131 in d93f9c4

PRVM_clientedictfloat(prog->edicts, modelindex) = 1;

? Does it need to be before the VectorCopy() calls?

[Baker7]

No but it makes the most sense being after this line because message is a world field too.

// set map description (use world entity 0)
PRVM_clientedictstring(prog->edicts, message) = PRVM_SetEngineString(prog, cl.worldmessage);

[hemebond]

Sorry, I'm still confused. Is it necessary to move the line to fix a bug?