Client: Allow to specify name for kill sound and regulate volume

[SmileyAG]

Closes #132

[tmp64]

Volume control will stop working as soon as "Apply" is pressed in the advanced options dialog because CCvarCheckButton only allows boolean values

BugfixedHL-Rebased/src/game/client/gameui/options/cvar_check_button.cpp

Lines 17 to 40 in 07aecff

	void CCvarCheckButton::ResetData()
	{
	if (m_pCvar)
	{
	bool val = !!m_pCvar->value;
	if (m_bInverse)
	val = !val;
	BaseClass::SetSelected(val);
	}
	}
	void CCvarCheckButton::ApplyChanges()
	{
	if (m_pCvar)
	{
	char buf[256];
	bool val = IsSelected();
	if (m_bInverse)
	val = !val;
	snprintf(buf, sizeof(buf), "%s \"%s\"", m_pCvar->name, (val ? "1" : "0"));
	gEngfuncs.pfnClientCmd(buf);
	}
	}

I see two ways to resolve that
a. Replace checkboxes with sliders. But there's barely any space for anything as it is.
b. Modify CCvarCheckButton to only update the value if it was changed.

[tmp64]

Rebased on top of master

[tmp64]

Thanks!

[tmp64]

I see two ways to resolve that
a. Replace checkboxes with sliders. But there's barely any space for anything as it is.
b. Modify CCvarCheckButton to only update the value if it was changed.

I changed CCvarCheckButton to only apply if the user clicked the checkbox (f4deeab).