// Random Gravity
//
// Mutator by Mario
// Inspired by Player 2

float gravity_delay;

MUTATOR_HOOKFUNCTION(gravity_StartFrame)
{
	if(gameover || !cvar("g_random_gravity")) return FALSE;	
	if(time < gravity_delay) return FALSE;
	if(time < game_starttime) return FALSE;
	if(round_handler_IsActive() && !round_handler_IsRoundStarted()) return FALSE;
	
    if(random() >= autocvar_g_random_gravity_negative_chance) 
        cvar_set("sv_gravity", ftos(bound(autocvar_g_random_gravity_min, random() - random() * -autocvar_g_random_gravity_negative, autocvar_g_random_gravity_max)));
    else
        cvar_set("sv_gravity", ftos(bound(autocvar_g_random_gravity_min, random() * autocvar_g_random_gravity_positive, autocvar_g_random_gravity_max)));
	
	gravity_delay = time + autocvar_g_random_gravity_delay;
	
	dprint("Gravity is now: ", ftos(autocvar_sv_gravity), "\n");
	
	return FALSE;
}

MUTATOR_HOOKFUNCTION(gravity_BuildMutatorsString)
{
	ret_string = strcat(ret_string, ":RandomGravity");
	return 0;
}

MUTATOR_HOOKFUNCTION(gravity_BuildMutatorsPrettyString)
{
	ret_string = strcat(ret_string, ", Random gravity");
	return 0;
}

MUTATOR_DEFINITION(mutator_random_gravity)
{
	MUTATOR_HOOK(SV_StartFrame, gravity_StartFrame, CBC_ORDER_ANY);
	MUTATOR_HOOK(BuildMutatorsString, gravity_BuildMutatorsString, CBC_ORDER_ANY);
	MUTATOR_HOOK(BuildMutatorsPrettyString, gravity_BuildMutatorsPrettyString, CBC_ORDER_ANY);
	
	MUTATOR_ONADD
	{
		cvar_settemp("sv_gravity", cvar_string("sv_gravity")); // settemp current gravity so it's restored on match end
	}

	return FALSE;
}