static void
update_eye(void)
{
vector3 wanted, dir;
float d;
float max_speed;
vec3_add_to(&gc.eye, &delta_eye);
if (inner_state.state == IS_WAVE_CLEARED) {
vec3_set(&wanted, 0, 0, -3.f*BASE_EYE_Z);
} else {
if (!ship.is_alive) {
vec3_set(&wanted, 0, 0, -BASE_EYE_Z);
} else {
const struct foe_common *closest_foe;
closest_foe = get_closest_foe(&ship.pos);
if (closest_foe &&
#define D 4.f
(d = vec2_distance(&closest_foe->pos, &ship.pos)) < D) {
#define R .7
wanted.z = -(R*BASE_EYE_Z + (d/D)*(1.f - R)*BASE_EYE_Z);
} else {
wanted.z = -BASE_EYE_Z;
}
wanted.x = -(-BASE_EYE_Z/wanted.z)*.3f*ship.pos.x;
wanted.y = -(-BASE_EYE_Z/wanted.z)*.3f*ship.pos.y;
}
}
if (inner_state.state == IS_IN_GAME)
max_speed = .5f;
else
max_speed = 1.5f;
vec3_sub(&dir, &wanted, &gc.eye);
vec3_mul_scalar(&dir, .05f);
vec3_add_to(&delta_eye, &dir);
vec3_clamp_length(&delta_eye, max_speed);
/* damp */
vec3_mul_scalar(&delta_eye, .7);
}
void Polygon_MoveSelf(polygon_p p, float move[3])
{
vertex_p v;
v = p->vertices;
for(uint16_t i = 0; i < p->vertex_count; i++, v++)
{
vec3_add_to(v->position, move);
}
p->plane[3] = -vec3_dot(p->plane, p->vertices[0].position);
}