BitPuffin

import db_sqlite

var db = Open(connection="foo.db", user="rumpf", password="fpmur", database="mydb")

proc getFromWhere*(id, row, table: string): TRow =
  result = db.getRow(sql"select 1 from ? where ? = ?", table, row, id)

template getFrom*(id, table: string): expr =
  getFromWhere(id, "id", table)
  # foo! this line causes error

BitPuffin

proc genRandomSalt(len: int): string =
  randomize()
  result = ""
  for i in 0..<len:
    result = char(random())

BitPuffin

sql"""
  select exists (select 1 from groups where 
    user_id = (select users.id from users where username=?) and 
    group_id = (select group.id from groups where name='admin'))""", id)[0] == "t"

BitPuffin

proc rotate(axis: TVector, angle: float): TMat4 =
  let cosine    = cos(angle).float32
  let sine    = sin(angle).float32
  let oneminuscos = 1 - cosine
  let xsquared    = axis[0].pow(2.0)
  let ysquared    = axis[1].pow(2.0)
  let zsquared    = axis[2].pow(2.0)
  result = [[cosine + oneminuscos*xsquared, oneminuscos*axis[0]*axis[1] - axis[2]*sine, oneminuscos*axis[0]*axis[2] + axis[1]*sine, 0],
            [oneminuscos*axis[0]*axis[1] + axis[2]*sine, cosine + oneminuscos*ysquared, oneminuscos*axis[1]*axis[2] - axis[0]*sine, 0],
            [oneminuscos*axis[0]*axis[2] - axis[1]*sine, oneminuscos*axis[1]*axis[2] + axis[0]*sine, cosine + oneminuscos*zsquared, 0],

BitPuffin

proc rotate(axis: TVector, angle: float): TMat4 =
  result = [[cos(angle) + (1 - cos(angle))*axis[0].pow(2.0), (1 - cos(angle))*axis[0]*axis[1] - axis[2]*sin(angle), (1 - cos(angle))*axis[0]*axis[2] + axis[1]*sin(angle), 0],
            [(1 - cos(angle))*axis[0]*axis[1] + axis[2]*sin(angle), cos(angle) + (1 - cos(angle))*axis[1].pow(2.0), (1 - cos(angle))*axis[1]*axis[2] - axis[0]*sin(angle), 0],
            [(1 - cos(angle))*axis[0]*axis[2] - axis[1]*sin(angle), (1 - cos(angle))*axis[1]*axis[2] + axis[0]*sin(angle), cos(angle) + (1 - cos(angle))*axis[2].pow(2.0), 0],
            [0f32,                                                                        0f32,                                               0f32,                     1f32]]

BitPuffin

proc identity[T; N](): TMatrix[T, N, N] {.noSideEffect.} =
  ## Returns the identity matrix given the specified params
  ## This proc is unnecessarily inefficient for now because of
  ## the compiler
  for i in N.low..N.high():
    for j in N.low..N.high():
      if i == j:
        result[i][j] = 1.T
      else:
        result[i][j] = 0.T

BitPuffin

template identity(m: typedesc[TMatrix]): expr =
  when m.R != m.C:
    {.fatal: "Identity is only defined for square matrices".}
  result = identity[m.T, m.R]()

BitPuffin

echo(identity[float32, range[0..2]]())

[1.0000000000000000e+00, 4.5671119549274438e-41, -7.7153667807579041e-03]
[4.5671119549274438e-41, 1.0000000000000000e+00, 4.5916346780531281e-41]
[-7.4024423956871033e-03, 4.5671119549274438e-41, 1.0000000000000000e+00]

BitPuffin

proc identity[T; N](): TMatrix[T, N, N] {.noSideEffect.} =
  for i in N.low..N.high():
    result[i][i] = 1

BitPuffin

 nimrod c graphics/terrain.nim
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/nim-glfw-0.1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/linagl-0.1.1' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/nim-ao-0.1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/nim-portaudio-0.1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/nim-vorbis-0.1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/opengl-1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/jester-0.1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/nim-ogg-0.1.0' [Path]
config/nimrod.cfg(36, 2) Hint: added path: '/home/isak/.babel/pkgs/fowltek-0.9.3' [Path]