#include "precompiled.h"

char *UTIL_VarArgs(char *format, ...)
{
	va_list argptr;
	static char string[1024];

	va_start(argptr, format);
	Q_vsnprintf(string, sizeof(string), format, argptr);
	va_end(argptr);

	return string;
}

short FixedSigned16(float value, float scale)
{
	int output;

	output = (int)(value * scale);

	if (output > 32767)
		output = 32767;

	if (output < -32768)
		output = -32768;

	return (short)output;
}

unsigned short FixedUnsigned16(float value, float scale)
{
	int output;

	output = (int)(value * scale);
	if (output < 0)
		output = 0;
	if (output > 0xFFFF)
		output = 0xFFFF;

	return (unsigned short)output;
}

void UTIL_HudMessage(edict_t *pEntity, const hudtextparms_t &textparms, const char *pMessage)
{
	if (FNullEnt(pEntity) || pEntity->free)
		return;

	MESSAGE_BEGIN(MSG_ONE, SVC_TEMPENTITY, NULL, pEntity);
	WRITE_BYTE(TE_TEXTMESSAGE);
	WRITE_BYTE(textparms.channel & 0xFF);

	WRITE_SHORT(FixedSigned16(textparms.x, 1 << 13));
	WRITE_SHORT(FixedSigned16(textparms.y, 1 << 13));
	WRITE_BYTE(textparms.effect);

	WRITE_BYTE(textparms.r1);
	WRITE_BYTE(textparms.g1);
	WRITE_BYTE(textparms.b1);
	WRITE_BYTE(textparms.a1);

	WRITE_BYTE(textparms.r2);
	WRITE_BYTE(textparms.g2);
	WRITE_BYTE(textparms.b2);
	WRITE_BYTE(textparms.a2);

	WRITE_SHORT(FixedUnsigned16(textparms.fadeinTime, 1 << 8));
	WRITE_SHORT(FixedUnsigned16(textparms.fadeoutTime, 1 << 8));
	WRITE_SHORT(FixedUnsigned16(textparms.holdTime, 1 << 8));

	if (textparms.effect == 2)
		WRITE_SHORT(FixedUnsigned16(textparms.fxTime, 1 << 8));

	if (strlen(pMessage) < 512) {
		WRITE_STRING(pMessage);
	}
	else {
		char tmp[512];
		strncpy(tmp, pMessage, sizeof tmp - 1);
		tmp[sizeof tmp - 1] = 0;
		WRITE_STRING(tmp);
	}
	MESSAGE_END();
}