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//==============================================================================
// func_fall from RennyC
//
// A brush that drops and fades away when touched or triggered.
//
// dumptruck_ds
// noise = sound to play when triggered
// wait = wait this long before falling
//==============================================================================

//======================================================================
// constants
//======================================================================

const float FUNCFADE_DONT_FADE = 1;
const float FUNCFADE_SILENT = 2;

//======================================================================
// forward declarations
//======================================================================

// func_fall
void() func_fall_think;
void() func_fall_touch;
void() func_fall_use;
void(entity e) func_fall_init;
void() func_fall;

//------------------------------------------------------------------------------

/*QUAKED func_fall (0 .5 .8) ? DONT_FADE X X X X X X X NOT_ON_EASY NOT_ON_NORMAL NOT_ON_HARD_OR_NIGHTMARE NOT_IN_DEATHMATCH NOT_IN_COOP NOT_IN_SINGLEPLAYER X NOT_ON_HARD_ONLY NOT_ON_NIGHTMARE_ONLY
A brush that drops and fades away when touched and/or triggered.
Add some spice to your jumping puzzles or other scripted sequences!
Monsters will not trigger func_fall but will be gibbed if one falls on them.
NOTE: When a func_fall brush touches another brush or entity it will stop, which can look odd in certain situations.
noise = sound to play when triggered, the default is a switch sound.
wait = wait this long before falling.
Use the DONT_FADE spawnflag if desired.

Falling brush upon touch
*/
//----------------------------------------------------------------------
// class func_fall: base_func
// {
        //--------------------------------------------------------------
        void() func_fall_think =
        {
                if (self.cnt == TRUE && self.attack_finished < time)
                {
                        self.solid = SOLID_BBOX;
                        self.movetype = MOVETYPE_TOSS;

                        if (!(self.spawnflags & FUNCFADE_DONT_FADE))
                        {
                                if (self.alpha > 0.1)
                                {
                                        self.alpha = self.alpha - 0.03;
                                }
                                else
                                {
                                        remove (self);
                                        return;
                                }
                        }
                }
                self.nextthink = time + 0.1;
        };

        //--------------------------------------------------------------
        void() func_fall_touch =
        {
                if (other.classtype == CT_PLAYER)
                {
                        if (!(other.flags & FL_ONGROUND))
                                other.flags = other.flags | FL_ONGROUND;
                }
                else if (other.flags & FL_MONSTER)
                {
                        t_damage2 (other, self, other, 50000);
                }
                else
                {
                        return;
                }

                if (self.cnt == TRUE)
                        return;

                self.attack_finished = time + self.wait;
                self.cnt = TRUE;

                if (!(self.spawnflags & FUNCFADE_SILENT))
                {
                        if (self.noise != "")
                                sound (self, CHAN_AUTO, self.noise,
                                        1, ATTN_NORM);
                        else
                                sound (self, CHAN_AUTO, "buttons/switch21.wav",
                                        1, ATTN_NORM);
                }
        };

        //--------------------------------------------------------------
        void() func_fall_use =
        {
                // thanks again RennyC for help on revisions --dumptruck_ds
                self.attack_finished = time + self.wait;
                self.cnt = TRUE;

                if (self.noise != "")
                        sound (self, CHAN_AUTO, self.noise, 1, ATTN_NORM);
                else
                        sound (self, CHAN_AUTO, "buttons/switch21.wav",
                                1, ATTN_NORM);
        };

        //--------------------------------------------------------------
        void(entity e) func_fall_init =
        {
                e.classname = "func_fall";
                e.classtype = CT_FUNC_FALL;
                base_func_init (e);

                precache_sound ("buttons/switch21.wav");
                if (e.noise != "")
                        precache_sound (e.noise);

                e.alpha = 1;
                e.cnt = FALSE;
                e.solid = SOLID_BSP;
                e.movetype = MOVETYPE_PUSH;
                e.use = func_fall_use;
                e.touch = func_fall_touch;
                e.think = func_fall_think;
                e.nextthink = time;
                setmodel (e, e.model);
        };

        //--------------------------------------------------------------
        void() func_fall =
        {
                // new spawnflags for all entities -- iw
                if (SUB_Inhibit())
                        return;

                func_fall_init (self);
        };
// };