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# Soya 3D tutorial
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# Copyright (C) 2001-2004 Jean-Baptiste LAMY
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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# fullscreen-1: Setting up : displaying a 3D model
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# Soya can also render in fullscreen.
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# Beware: you MUST write a way to exit the program, e.g. by processing SDL events!
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# Imports sys, os modules and the Soya module.
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import sys, os, os.path, soya, soya.sdlconst
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# Inits Soya in 800x600 fullscreen mode (the last argument, 1, stands for fullscreen).
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# The first argument in the window name, which is only visible in window mode.
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soya.init("Soya fullscreen tutorial", 800, 600, 1)
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soya.path.append(os.path.join(os.path.dirname(sys.argv[0]), "data"))
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# The rest of the tutorial is identical to basic-5.py
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scene = soya.World()
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class CaterpillarHead(soya.Volume):
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  def __init__(self, parent):
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    soya.Volume.__init__(self, parent, soya.Shape.get("caterpillar_head"))
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    self.speed                  = soya.Vector(self, 0.0, 0.0, 0.0)
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    self.rotation_lateral_speed = 0.0
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  def begin_round(self):
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    soya.Volume.begin_round(self)
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    for event in soya.process_event():
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      if event[0] == soya.sdlconst.KEYDOWN:
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        if   event[1] == soya.sdlconst.K_UP:     self.speed.z = -0.2
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        elif event[1] == soya.sdlconst.K_DOWN:   self.speed.z =  0.1
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        elif event[1] == soya.sdlconst.K_LEFT:   self.rotation_lateral_speed =  10.0
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        elif event[1] == soya.sdlconst.K_RIGHT:  self.rotation_lateral_speed = -10.0
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        elif event[1] == soya.sdlconst.K_q:      soya.IDLER.stop()
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        elif event[1] == soya.sdlconst.K_ESCAPE: soya.IDLER.stop()
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      if event[0] == soya.sdlconst.KEYUP:
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        if   event[1] == soya.sdlconst.K_UP:     self.speed.z = 0.0
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        elif event[1] == soya.sdlconst.K_DOWN:   self.speed.z = 0.0
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        elif event[1] == soya.sdlconst.K_LEFT:   self.rotation_lateral_speed = 0.0
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        elif event[1] == soya.sdlconst.K_RIGHT:  self.rotation_lateral_speed = 0.0
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    self.rotate_lateral(self.rotation_lateral_speed)
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  def advance_time(self, proportion):
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    soya.Volume.advance_time(self, proportion)
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    self.add_mul_vector(proportion, self.speed)
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class CaterpillarPiece(soya.Volume):
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  def __init__(self, parent, previous):
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    soya.Volume.__init__(self, parent, soya.Shape.get("caterpillar"))
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    self.previous = previous
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    self.speed = soya.Vector(self, 0.0, 0.0, -0.2)
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  def begin_round(self):
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    soya.Volume.begin_round(self)
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    self.look_at(self.previous)
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    if self.distance_to(self.previous) < 1.5: self.speed.z =  0.0
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    else:                                     self.speed.z = -0.2
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  def advance_time(self, proportion):
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    soya.Volume.advance_time(self, proportion)
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    self.add_mul_vector(proportion, self.speed)
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# Creates a caterpillar head and 10 caterpillar piece of body.
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caterpillar_head = CaterpillarHead(scene)
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caterpillar_head.rotate_lateral(90.0)
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previous_caterpillar_piece = caterpillar_head
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for i in range(10):
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  previous_caterpillar_piece = CaterpillarPiece(scene, previous_caterpillar_piece)
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  previous_caterpillar_piece.x = i + 1
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# Creates a light.
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light = soya.Light(scene)
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light.set_xyz(2.0, 5.0, 0.0)
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# Creates a camera.
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camera = soya.Camera(scene)
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camera.set_xyz(0.0, 15.0, 15.0)
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camera.look_at(caterpillar_head)
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soya.set_root_widget(camera)
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soya.Idler(scene).idle()
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