game-source/ParoxysmII/source/nq/ai.qc

void() movetarget_f;
void() t_movetarget;
//void() knight_walk1;
//void() knight_bow6;
//void() knight_bow1;
void(entity etemp, entity stemp, entity stemp, float dmg) T_Damage;
/*

.enemy
Will be world if not currently angry at anyone.

.movetarget
The next path spot to walk toward.  If .enemy, ignore .movetarget.
When an enemy is killed, the monster will try to return to it's path.

.huntt_ime
Set to time + something when the player is in sight, but movement straight for
him is blocked.  This causes the monster to use wall following code for
movement direction instead of sighting on the player.

.ideal_yaw
A yaw angle of the intended direction, which will be turned towards at up
to 45 deg / state.  If the enemy is in view and hunt_time is not active,
this will be the exact line towards the enemy.

.pausetime
A monster will leave it's stand state and head towards it's .movetarget when
time > .pausetime.

walkmove(angle, speed) primitive is all or nothing
*/


//
// globals
//
float	current_yaw;

//
// when a monster becomes angry at a player, that monster will be used
// as the sight target the next frame so that monsters near that one
// will wake up even if they wouldn't have noticed the player
//
entity	sight_entity;
float	sight_entity_time;

float(float v) anglemod =
{
	while (v >= 360)
		v = v - 360;
	while (v < 0)
		v = v + 360;
	return v;
};

/*
==============================================================================

MOVETARGET CODE

The angle of the movetarget effects standing and bowing direction, but has no effect on movement, which allways heads to the next target.

targetname
must be present.  The name of this movetarget.

target
the next spot to move to.  If not present, stop here for good.

pausetime
The number of seconds to spend standing or bowing for path_stand or path_bow

==============================================================================
*/


void() movetarget_f =
{
	if (!self.targetname)
		objerror ("monster_movetarget: no targetname");
		
	self.solid = SOLID_TRIGGER;
	self.touch = t_movetarget;
	setsize (self, '-8 -8 -8', '8 8 8');
	
};

//*QUAKED path_corner (0.5 0.3 0) (-8 -8 -8) (8 8 8)
//Monsters will continue walking towards the next target corner.

void() path_corner =
{
	movetarget_f ();
};


/*
=============
t_movetarget

Something has bumped into a movetarget.  If it is a monster
moving towards it, change the next destination and continue.
==============
*/
void() t_movetarget =
{
local entity	temp;

	if (other.movetarget != self)
		return;
	
	if (other.enemy)
		return;		// fighting, not following a path

	temp = self;
	self = other;
	other = temp;

	//if (self.classname == "monster_ogre")
	//	sound (self, CHAN_VOICE, "ogre/ogdrag.wav", 1, ATTN_IDLE);// play chainsaw drag sound

//dprint ("t_movetarget\n");
	self.goalentity = self.movetarget = find (world, targetname, other.target);
	self.ideal_yaw = vectoyaw(self.goalentity.origin - self.origin);
	if (!self.movetarget)
	{
		self.pausetime = time + 999999;
		self.th_stand ();
		return;
	}
};



//============================================================================


/*
=============
visible

returns 1 if the entity is visible to self, even if not infront ()
=============
*/
float (entity targ) visible =
{
	local vector	spot1, spot2;
	
	spot1 = self.origin + self.view_ofs;
	spot2 = targ.origin + targ.view_ofs;
	traceline (spot1, spot2, TRUE, self);	// see through other monsters
	
	if (trace_inopen && trace_inwater)
		return FALSE;			// sight line crossed contents

	if (trace_fraction == 1)
		return TRUE;
	return FALSE;
};


/*
=============
infront

returns 1 if the entity is in front (in sight) of self
=============
*/
float(entity targ) infront =
{
	local vector	vec;
	local float		dot;
	
	makevectors (self.angles);
	vec = normalize (targ.origin - self.origin);
	dot = vec * v_forward;
	
	if ( dot > 0.3)
	{
		return TRUE;
	}
	return FALSE;
};


//============================================================================