Cube  Check-in [0c8fc2f148]

#define PIXELTAB (VIRTW / 12)

#define PI (3.1415927f)
#define PI2 (2 * PI)

// simplistic vector ops
#define dotprod(u, v) ((u).x * (v).x + (u).y * (v).y + (u).z * (v).z)




#define vdist(d, v, e, s)                         \
	OFVector3D v = OFSubtractVectors3D(s, e); \

	float d = (float)sqrt(dotprod(v, v));
#define vreject(v, u, max)                                 \
	((v).x > (u).x + (max) || (v).x < (u).x - (max) || \
	    (v).y > (u).y + (max) || (v).y < (u).y - (max))
#define vlinterp(v, f, u, g)                   \
	{                                      \
		(v).x = (v).x * f + (u).x * g; \

	case JUMPPAD: {
		static int lastjumppad = 0;
		if (lastmillis - lastjumppad < 300)
			break;
		lastjumppad = lastmillis;
		OFVector3D v = OFMakeVector3D((int)(char)ents[n].attr3 / 10.0f,
		    (int)(char)ents[n].attr2 / 10.0f, ents[n].attr1 / 10.0f);
		player1.velocity = OFAddVectors3D(
		    OFMakeVector3D(player1.velocity.x, player1.velocity.y, 0),
		    v);
		playsoundc(S_JUMPPAD);
		break;
	}
	}
}

void

	const float friction =
	    water ? 20.0f : (pl.onFloor || floating ? 6.0f : 30.0f);

	const float fpsfric = friction / curtime * 20.0f;

	// slowly apply friction and direction to
	// velocity, gives a smooth movement
	OFVector3D velocity = OFMultiplyVector3D(pl.velocity, fpsfric - 1);
	velocity = OFAddVectors3D(velocity, d);
	velocity = OFMultiplyVector3D(velocity, 1.0f / fpsfric);
	pl.velocity = velocity;
	// d is now frametime based velocity vector
	d = OFMultiplyVector3D(velocity, speed);

	pl.blocked = false;
	pl.moving = true;

	if (floating) {
		// just apply velocity
		pl.origin = OFAddVectors3D(pl.origin, d);
		if (pl.jumpNext) {
			pl.jumpNext = false;
			pl.velocity =
			    OFMakeVector3D(pl.velocity.x, pl.velocity.y, 2);
		}
	} else {
		// apply velocity with collision

			*pp = p->next;
			p->next = parempty;
			parempty = p;
		} else {
			if (pt->gr)
				p->o.z -= ((lastmillis - p->millis) / 3.0f) *
				    curtime / (pt->gr * 10000);
			OFVector3D a = OFMultiplyVector3D(p->d, time);

			a = OFMultiplyVector3D(a, 1.0f / 20000.0f);
			p->o = OFAddVectors3D(p->o, a);
			pp = &p->next;
		}
	}

	glEnable(GL_FOG);
	glDisable(GL_BLEND);
	glDepthMask(GL_TRUE);

	}
}

void
particle_trail(int type, int fade, const OFVector3D *s, const OFVector3D *e)
{
	vdist(d, v, *s, *e);
	v = OFMultiplyVector3D(v, 1.0f / (d * 2 + 0.1f));
	OFVector3D p = *s;
	for (int i = 0; i < ((int)d * 2); i++) {
		p = OFAddVectors3D(p, v);
		OFVector3D d =
		    OFMakeVector3D(rnd(11) - 5, rnd(11) - 5, rnd(11) - 5);
		newparticle(&p, &d, rnd(fade) + fade, type);
	}
}

	setclient(democlientnum, [player1 copy]);
	readdemotime();
}

VAR(demodelaymsec, 0, 120, 500);

// spline interpolation
#define catmulrom(z, a, b, c, s, dest)                                  \
	{                                                               \
		OFVector3D t1 = OFSubtractVectors3D(b, z);              \
		t1 = OFMultiplyVector3D(t1, 0.5f);                      \
                                                                        \


		OFVector3D t2 = OFSubtractVectors3D(c, a);              \
		t2 = OFMultiplyVector3D(t2, 0.5f);                      \
                                                                        \
		float s2 = s * s;                                       \
		float s3 = s * s2;                                      \
                                                                        \



		dest = OFMultiplyVector3D(a, 2 * s3 - 3 * s2 + 1);      \
		OFVector3D t = OFMultiplyVector3D(b, -2 * s3 + 3 * s2); \
		dest = OFAddVectors3D(dest, t);                         \
		t1 = OFMultiplyVector3D(t1, s3 - 2 * s2 + s);           \
		dest = OFAddVectors3D(dest, t1);                        \
		t2 = OFMultiplyVector3D(t2, s3 - s2);                   \
		dest = OFAddVectors3D(dest, t2);                        \
	}

void
fixwrap(DynamicEntity *a, DynamicEntity *b)
{
	while (b.yaw - a.yaw > 180)
		a.yaw += 360;

// create random spread of rays for the shotgun
void
createrays(const OFVector3D *from, const OFVector3D *to)
{
	vdist(dist, dvec, *from, *to);
	float f = dist * SGSPREAD / 1000;
	for (int i = 0; i < SGRAYS; i++)
#define RNDD (rnd(101) - 50) * f
		sg[i] = OFAddVectors3D(*to, OFMakeVector3D(RNDD, RNDD, RNDD));



}

// if lineseg hits entity bounding box
static bool
intersect(DynamicEntity *d, const OFVector3D *from, const OFVector3D *to)
{
	OFVector3D v = *to, w = d.origin;
	const OFVector3D *p;
	v = OFSubtractVectors3D(v, *from);
	w = OFSubtractVectors3D(w, *from);
	float c1 = dotprod(w, v);

	if (c1 <= 0)
		p = from;
	else {
		float c2 = dotprod(v, v);
		if (c2 <= c1)
			p = to;
		else {
			v = OFMultiplyVector3D(v, c1 / c2);

			v = OFAddVectors3D(v, *from);
			p = &v;
		}
	}

	return (p->x <= d.origin.x + d.radius &&
	    p->x >= d.origin.x - d.radius && p->y <= d.origin.y + d.radius &&
	    p->y >= d.origin.y - d.radius && p->z <= d.origin.z + d.aboveEye &&

	vdist(dist, temp, *v, o.origin);
	dist -= 2; // account for eye distance imprecision
	if (dist < RL_DAMRAD) {
		if (dist < 0)
			dist = 0;
		int damage = (int)(qdam * (1 - (dist / RL_DAMRAD)));
		hit(cn, damage, o, at);
		temp =
		    OFMultiplyVector3D(temp, (RL_DAMRAD - dist) * damage / 800);
		o.velocity = OFAddVectors3D(o.velocity, temp);
	}
}

static void
splash(Projectile *p, const OFVector3D *v, const OFVector3D *vold,
    int notthisplayer, int notthismonster, int qdam)
{

		int qdam = guns[p.gun].damage * (p.owner.quadMillis ? 4 : 1);
		if ([p.owner isKindOfClass:Monster.class])
			qdam /= MONSTERDAMAGEFACTOR;
		vdist(dist, v, p.o, p.to);
		float dtime = dist * 1000 / p.speed;
		if (time > dtime)
			dtime = time;
		v = OFMultiplyVector3D(v, time / dtime);
		v = OFAddVectors3D(v, p.o);
		if (p.local) {
			for (id player in players)
				if (player != [OFNull null])
					projdamage(player, p, &v, i, -1, qdam);

			if (p.owner != player1)
				projdamage(player1, p, &v, -1, -1, qdam);

void
hitpush(int target, int damage, DynamicEntity *d, DynamicEntity *at,
    const OFVector3D *from, const OFVector3D *to)
{
	hit(target, damage, d, at);
	vdist(dist, v, *from, *to);
	v = OFMultiplyVector3D(v, damage / dist / 50);
	d.velocity = OFAddVectors3D(d.velocity, v);
}

void
raydamage(DynamicEntity *o, const OFVector3D *from, const OFVector3D *to,
    DynamicEntity *d, int i)
{
	if (o.state != CS_ALIVE)

	if (d.gunSelect)
		d.ammo[d.gunSelect]--;
	OFVector3D from = d.origin;
	OFVector3D to = *targ;
	from.z -= 0.2f; // below eye

	vdist(dist, unitv, from, to);
	unitv = OFMultiplyVector3D(unitv, 1.0f / dist);
	OFVector3D kickback =
	    OFMultiplyVector3D(unitv, guns[d.gunSelect].kickamount * -0.01f);
	d.velocity = OFAddVectors3D(d.velocity, kickback);
	if (d.pitch < 80.0f)
		d.pitch += guns[d.gunSelect].kickamount * 0.05f;

	if (d.gunSelect == GUN_FIST || d.gunSelect == GUN_BITE) {
		unitv = OFMultiplyVector3D(unitv, 3); // punch range

		to = OFAddVectors3D(from, unitv);
	}
	if (d.gunSelect == GUN_SG)
		createrays(&from, &to);

	if (d.quadMillis && attacktime > 200)
		playsoundc(S_ITEMPUP);
	shootv(d.gunSelect, &from, &to, d, true);