//! Points with dimensions known at compile-time.

#![allow(missing_docs)] // we allow missing to avoid having to document the point components.

use std::mem;
use std::slice::{Items, MutItems};
use std::iter::{Iterator, FromIterator};
use traits::operations::{ApproxEq, POrd, POrdering, Axpy, ScalarAdd, ScalarSub, ScalarMul,
                         ScalarDiv};
use traits::structure::{Cast, Dim, Indexable, Iterable, IterableMut, PntAsVec, Shape,
                        NumPnt, FloatPnt, BaseFloat, BaseNum, Zero, One, Bounded};
use traits::geometry::{Orig, FromHomogeneous, ToHomogeneous};
use structs::vec::{Vec1, Vec2, Vec3, Vec4, Vec5, Vec6};


/// Point of dimension 0.
#[deriving(Eq, PartialEq, Decodable, Clone, Rand, Show)]
pub struct Pnt0<N>;

impl<N> Pnt0<N> {
    /// Creates a new point.
    #[inline]
    pub fn new() -> Pnt0<N> {
        Pnt0
    }

    /// Creates a new point. The parameter is not taken in account.
    #[inline]
    pub fn new_repeat(_: N) -> Pnt0<N> {
        Pnt0
    }
}

/// Point of dimension 1.
#[deriving(Eq, PartialEq, Encodable, Decodable, Clone, Hash, Rand, Show)]
pub struct Pnt1<N> {
    /// First component of the point.
    pub x: N
}

new_impl!(Pnt1, x)
orig_impl!(Pnt1, x)
ord_impl!(Pnt1, x)
scalar_mul_impl!(Pnt1, x)
scalar_div_impl!(Pnt1, x)
scalar_add_impl!(Pnt1, x)
scalar_sub_impl!(Pnt1, x)
vec_cast_impl!(Pnt1, x)
as_array_impl!(Pnt1, 1)
index_impl!(Pnt1)
indexable_impl!(Pnt1, 1)
at_fast_impl!(Pnt1, 1)
new_repeat_impl!(Pnt1, val, x)
dim_impl!(Pnt1, 1)
container_impl!(Pnt1)
pnt_as_vec_impl!(Pnt1, Vec1, x)
pnt_sub_impl!(Pnt1, Vec1)
neg_impl!(Pnt1, x)
pnt_add_vec_impl!(Pnt1, Vec1, x)
pnt_sub_vec_impl!(Pnt1, Vec1, x)
scalar_ops_impl!(Pnt1, x)
approx_eq_impl!(Pnt1, x)
from_iterator_impl!(Pnt1, iterator)
bounded_impl!(Pnt1, x)
axpy_impl!(Pnt1, x)
iterable_impl!(Pnt1, 1)
iterable_mut_impl!(Pnt1, 1)
pnt_to_homogeneous_impl!(Pnt1, Pnt2, y, x)
pnt_from_homogeneous_impl!(Pnt1, Pnt2, y, x)
num_float_pnt_impl!(Pnt1, Vec1)

/// Point of dimension 2.
#[deriving(Eq, PartialEq, Encodable, Decodable, Clone, Hash, Rand, Show)]
pub struct Pnt2<N> {
    /// First component of the point.
    pub x: N,
    /// Second component of the point.
    pub y: N
}

new_impl!(Pnt2, x, y)
orig_impl!(Pnt2, x, y)
ord_impl!(Pnt2, x, y)
scalar_mul_impl!(Pnt2, x, y)
scalar_div_impl!(Pnt2, x, y)
scalar_add_impl!(Pnt2, x, y)
scalar_sub_impl!(Pnt2, x, y)
vec_cast_impl!(Pnt2, x, y)
as_array_impl!(Pnt2, 2)
index_impl!(Pnt2)
indexable_impl!(Pnt2, 2)
at_fast_impl!(Pnt2, 2)
new_repeat_impl!(Pnt2, val, x, y)
dim_impl!(Pnt2, 2)
container_impl!(Pnt2)
pnt_as_vec_impl!(Pnt2, Vec2, x, y)
pnt_sub_impl!(Pnt2, Vec2)
neg_impl!(Pnt2, x, y)
pnt_add_vec_impl!(Pnt2, Vec2, x, y)
pnt_sub_vec_impl!(Pnt2, Vec2, x, y)
scalar_ops_impl!(Pnt2, x, y)
approx_eq_impl!(Pnt2, x, y)
from_iterator_impl!(Pnt2, iterator, iterator)
bounded_impl!(Pnt2, x, y)
axpy_impl!(Pnt2, x, y)
iterable_impl!(Pnt2, 2)
iterable_mut_impl!(Pnt2, 2)
pnt_to_homogeneous_impl!(Pnt2, Pnt3, z, x, y)
pnt_from_homogeneous_impl!(Pnt2, Pnt3, z, x, y)
num_float_pnt_impl!(Pnt2, Vec2)

/// Point of dimension 3.
#[deriving(Eq, PartialEq, Encodable, Decodable, Clone, Hash, Rand, Show)]
pub struct Pnt3<N> {
    /// First component of the point.
    pub x: N,
    /// Second component of the point.
    pub y: N,
    /// Third component of the point.
    pub z: N
}

new_impl!(Pnt3, x, y, z)
orig_impl!(Pnt3, x, y, z)
ord_impl!(Pnt3, x, y, z)
scalar_mul_impl!(Pnt3, x, y, z)
scalar_div_impl!(Pnt3, x, y, z)
scalar_add_impl!(Pnt3, x, y, z)
scalar_sub_impl!(Pnt3, x, y, z)
vec_cast_impl!(Pnt3, x, y, z)
as_array_impl!(Pnt3, 3)
index_impl!(Pnt3)
indexable_impl!(Pnt3, 3)
at_fast_impl!(Pnt3, 3)
new_repeat_impl!(Pnt3, val, x, y, z)
dim_impl!(Pnt3, 3)
container_impl!(Pnt3)
pnt_as_vec_impl!(Pnt3, Vec3, x, y, z)
pnt_sub_impl!(Pnt3, Vec3)
neg_impl!(Pnt3, x, y, z)
pnt_add_vec_impl!(Pnt3, Vec3, x, y, z)
pnt_sub_vec_impl!(Pnt3, Vec3, x, y, z)
scalar_ops_impl!(Pnt3, x, y, z)
approx_eq_impl!(Pnt3, x, y, z)
from_iterator_impl!(Pnt3, iterator, iterator, iterator)
bounded_impl!(Pnt3, x, y, z)
axpy_impl!(Pnt3, x, y, z)
iterable_impl!(Pnt3, 3)
iterable_mut_impl!(Pnt3, 3)
pnt_to_homogeneous_impl!(Pnt3, Pnt4, w, x, y, z)
pnt_from_homogeneous_impl!(Pnt3, Pnt4, w, x, y, z)
num_float_pnt_impl!(Pnt3, Vec3)

/// Point of dimension 4.
#[deriving(Eq, PartialEq, Encodable, Decodable, Clone, Hash, Rand, Show)]
pub struct Pnt4<N> {
    /// First component of the point.
    pub x: N,
    /// Second component of the point.
    pub y: N,
    /// Third component of the point.
    pub z: N,
    /// Fourth component of the point.
    pub w: N
}

new_impl!(Pnt4, x, y, z, w)
orig_impl!(Pnt4, x, y, z, w)
ord_impl!(Pnt4, x, y, z, w)
scalar_mul_impl!(Pnt4, x, y, z, w)
scalar_div_impl!(Pnt4, x, y, z, w)
scalar_add_impl!(Pnt4, x, y, z, w)
scalar_sub_impl!(Pnt4, x, y, z, w)
vec_cast_impl!(Pnt4, x, y, z, w)
as_array_impl!(Pnt4, 4)
index_impl!(Pnt4)
indexable_impl!(Pnt4, 4)
at_fast_impl!(Pnt4, 4)
new_repeat_impl!(Pnt4, val, x, y, z, w)
dim_impl!(Pnt4, 4)
container_impl!(Pnt4)
pnt_as_vec_impl!(Pnt4, Vec4, x, y, z, w)
pnt_sub_impl!(Pnt4, Vec4)
neg_impl!(Pnt4, x, y, z, w)
pnt_add_vec_impl!(Pnt4, Vec4, x, y, z, w)
pnt_sub_vec_impl!(Pnt4, Vec4, x, y, z, w)
scalar_ops_impl!(Pnt4, x, y, z, w)
approx_eq_impl!(Pnt4, x, y, z, w)
from_iterator_impl!(Pnt4, iterator, iterator, iterator, iterator)
bounded_impl!(Pnt4, x, y, z, w)
axpy_impl!(Pnt4, x, y, z, w)
iterable_impl!(Pnt4, 4)
iterable_mut_impl!(Pnt4, 4)
pnt_to_homogeneous_impl!(Pnt4, Pnt5, a, x, y, z, w)
pnt_from_homogeneous_impl!(Pnt4, Pnt5, a, x, y, z, w)
num_float_pnt_impl!(Pnt4, Vec4)

/// Point of dimension 5.
#[deriving(Eq, PartialEq, Encodable, Decodable, Clone, Hash, Rand, Show)]
pub struct Pnt5<N> {
    /// First component of the point.
    pub x: N,
    /// Second component of the point.
    pub y: N,
    /// Third component of the point.
    pub z: N,
    /// Fourth component of the point.
    pub w: N,
    /// Fifth of the point.
    pub a: N
}

new_impl!(Pnt5, x, y, z, w, a)
orig_impl!(Pnt5, x, y, z, w, a)
ord_impl!(Pnt5, x, y, z, w, a)
scalar_mul_impl!(Pnt5, x, y, z, w, a)
scalar_div_impl!(Pnt5, x, y, z, w, a)
scalar_add_impl!(Pnt5, x, y, z, w, a)
scalar_sub_impl!(Pnt5, x, y, z, w, a)
vec_cast_impl!(Pnt5, x, y, z, w, a)
as_array_impl!(Pnt5, 5)
index_impl!(Pnt5)
indexable_impl!(Pnt5, 5)
at_fast_impl!(Pnt5, 5)
new_repeat_impl!(Pnt5, val, x, y, z, w, a)
dim_impl!(Pnt5, 5)
container_impl!(Pnt5)
pnt_as_vec_impl!(Pnt5, Vec5, x, y, z, w, a)
pnt_sub_impl!(Pnt5, Vec5)
neg_impl!(Pnt5, x, y, z, w, a)
pnt_add_vec_impl!(Pnt5, Vec5, x, y, z, w, a)
pnt_sub_vec_impl!(Pnt5, Vec5, x, y, z, w, a)
scalar_ops_impl!(Pnt5, x, y, z, w, a)
approx_eq_impl!(Pnt5, x, y, z, w, a)
from_iterator_impl!(Pnt5, iterator, iterator, iterator, iterator, iterator)
bounded_impl!(Pnt5, x, y, z, w, a)
axpy_impl!(Pnt5, x, y, z, w, a)
iterable_impl!(Pnt5, 5)
iterable_mut_impl!(Pnt5, 5)
pnt_to_homogeneous_impl!(Pnt5, Pnt6, b, x, y, z, w, a)
pnt_from_homogeneous_impl!(Pnt5, Pnt6, b, x, y, z, w, a)
num_float_pnt_impl!(Pnt5, Vec5)

/// Point of dimension 6.
#[deriving(Eq, PartialEq, Encodable, Decodable, Clone, Hash, Rand, Show)]
pub struct Pnt6<N> {
    /// First component of the point.
    pub x: N,
    /// Second component of the point.
    pub y: N,
    /// Third component of the point.
    pub z: N,
    /// Fourth component of the point.
    pub w: N,
    /// Fifth of the point.
    pub a: N,
    /// Sixth component of the point.
    pub b: N
}

new_impl!(Pnt6, x, y, z, w, a, b)
orig_impl!(Pnt6, x, y, z, w, a, b)
ord_impl!(Pnt6, x, y, z, w, a, b)
scalar_mul_impl!(Pnt6, x, y, z, w, a, b)
scalar_div_impl!(Pnt6, x, y, z, w, a, b)
scalar_add_impl!(Pnt6, x, y, z, w, a, b)
scalar_sub_impl!(Pnt6, x, y, z, w, a, b)
vec_cast_impl!(Pnt6, x, y, z, w, a, b)
as_array_impl!(Pnt6, 6)
index_impl!(Pnt6)
indexable_impl!(Pnt6, 6)
at_fast_impl!(Pnt6, 6)
new_repeat_impl!(Pnt6, val, x, y, z, w, a, b)
dim_impl!(Pnt6, 6)
container_impl!(Pnt6)
pnt_as_vec_impl!(Pnt6, Vec6, x, y, z, w, a, b)
pnt_sub_impl!(Pnt6, Vec6)
neg_impl!(Pnt6, x, y, z, w, a, b)
pnt_add_vec_impl!(Pnt6, Vec6, x, y, z, w, a, b)
pnt_sub_vec_impl!(Pnt6, Vec6, x, y, z, w, a, b)
scalar_ops_impl!(Pnt6, x, y, z, w, a, b)
approx_eq_impl!(Pnt6, x, y, z, w, a, b)
from_iterator_impl!(Pnt6, iterator, iterator, iterator, iterator, iterator, iterator)
bounded_impl!(Pnt6, x, y, z, w, a, b)
axpy_impl!(Pnt6, x, y, z, w, a, b)
iterable_impl!(Pnt6, 6)
iterable_mut_impl!(Pnt6, 6)
num_float_pnt_impl!(Pnt6, Vec6)