Since you are in the scripting section, it means you are willing to learn.
To register a cvar, use
register_cvar().
Fast exemple :
Code:
new gCvarSemiClip;
// [...]
// In plugin_init()
gCvarSemiClip = register_cvar( "semiclip_enabled", "1" );
// [...]
// In your function.
if ( get_pcvar_num( gCvarSemiClip ) )
{
}
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