# Copyright 2004-2018 Tom Rothamel <pytom@bishoujo.us>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

# This file contains a number of definitions of standard
# locations and transitions. We've moved them into the common
# directory so that it's easy for an updated version of all of these
# definitions.

init -1400:

    transform reset:
        alpha 1 rotate None zoom 1 xzoom 1 yzoom 1 align (0, 0) alignaround (0, 0) subpixel False size None crop None

    # These are positions that can be used inside at clauses. We set
    # them up here so that they can be used throughout the program.
    transform left:
        xpos 0.0 xanchor 0.0 ypos 1.0 yanchor 1.0

    transform right:
        xpos 1.0 xanchor 1.0 ypos 1.0 yanchor 1.0

    transform center:
        xpos 0.5 xanchor 0.5 ypos 1.0 yanchor 1.0

    transform truecenter:
        xpos 0.5 xanchor 0.5 ypos 0.5 yanchor 0.5

    transform topleft:
        xpos 0.0 xanchor 0.0 ypos 0.0 yanchor 0.0

    transform topright:
        xpos 1.0 xanchor 1.0 ypos 0.0 yanchor 0.0

    transform top:
        xpos 0.5 xanchor 0.5 ypos 0.0 yanchor 0.0

    # Offscreen positions for use with the move transition. Images at
    # these positions are still shown (and consume
    # resources)... remember to hide the image after the transition.
    transform offscreenleft:
        xpos 0.0 xanchor 1.0 ypos 1.0 yanchor 1.0

    transform offscreenright:
        xpos 1.0 xanchor 0.0 ypos 1.0 yanchor 1.0

    transform default:
        alpha 1 rotate None zoom 1 xzoom 1 yzoom 1 align (0, 0) alignaround (0, 0) subpixel False size None crop None
        xpos 0.5 xanchor 0.5 ypos 1.0 yanchor 1.0

    # These are used by the transitions to move things offscreen. We don't
    # expect them to be used by user code.
    transform _moveleft:
        xpos 0.0 xanchor 1.0

    transform _moveright:
        xpos 1.0 xanchor 0.0

    transform _movetop:
        ypos 0.0 yanchor 1.0

    transform _movebottom:
        ypos 1.0 yanchor 0.0

    python:
        config.default_transform = default

        # These names are unlikely to be used in screens - except as arguments -
        # so mark them not-const.

        renpy.not_const("reset")
        renpy.not_const("left")
        renpy.not_const("right")
        renpy.not_const("center")
        renpy.not_const("truecenter")
        renpy.not_const("topleft")
        renpy.not_const("topright")
        renpy.not_const("top")
        renpy.not_const("offscreenleft")
        renpy.not_const("offscreenright")
        renpy.not_const("default")

# Transitions ##################################################################

init -1400 python:

    _define = define = object()

    # Ease images around. These are basically cosine-warped moves.
    def _ease_out_time_warp(x):
        import math
        return 1.0 - math.cos(x * math.pi / 2.0)

    def _ease_in_time_warp(x):
        import math
        return math.cos((1.0 - x) * math.pi / 2.0)

    def _ease_time_warp(x):
        import math
        return .5 - math.cos(math.pi * x) / 2.0

    # Back up the move transition, so that if MoveTransition gets replaced by
    # renpy.compat, this still works.
    __MoveTransition = MoveTransition

    # This defines a family of move transitions, using the old-style methods.
    def move_transitions(prefix, delay, time_warp=None, in_time_warp=None, out_time_warp=None, old=False, layers=[ 'master' ], **kwargs):
        """
        :doc: transition_family

        This defines a family of move transitions, similar to the move and ease
        transitions. For a given `prefix`, this defines the transitions:

        * *prefix*- A transition that takes `delay` seconds to move images that
          changed positions to their new locations.

        * *prefix*\ inleft, *prefix*\ inright, *prefix*\ intop, *prefix*\ inbottom - Transitions
          that take `delay` seconds to move images that changed positions to their
          new locations, with newly shown images coming in from the appropriate
          side.

        * *prefix*\ outleft, *prefix*\ outright, *prefix*\ outtop, *prefix*\ outbottom -
          Transitions that take `delay` seconds to move images that changed
          positions to their new locations, with newly hidden images leaving via
          the appropriate side.

        `time_warp`, `in_time_warp`, `out_time_warp`
            Time warp functions that are given a time from 0.0 to 1.0 representing
            the fraction of the move complete, and return a value in the same
            range giving the fraction of a linear move that is complete.

            This can be used to define functions that ease the images around,
            rather than moving them at a constant speed.

            The three argument are used for images remaining on the screen,
            newly shown images, and newly hidden images, respectively.

        `old`
            If true, the transitions to move the old displayables, rather than the new ones.

        `layers`
            The layers the transition will apply to.

        ::

            # This defines all of the pre-defined transitions beginning
            # with "move".
            init python:
                define.move_transitions("move", 0.5)

        """

        moves = {
            "" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                time_warp=time_warp),

            "inright" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                enter=_moveright,
                time_warp=time_warp,
                enter_time_warp=in_time_warp,
                ),

            "inleft" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                enter=_moveleft,
                time_warp=time_warp,
                enter_time_warp=in_time_warp,
                ),

            "intop" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                enter=_movetop,
                time_warp=time_warp,
                enter_time_warp=in_time_warp,
                ),

            "inbottom" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                enter=_movebottom,
                time_warp=time_warp,
                enter_time_warp=in_time_warp,
                ),

            "outright" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                leave=_moveright,
                time_warp=time_warp,
                leave_time_warp=out_time_warp,
                ),

            "outleft" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                leave=_moveleft,
                time_warp=time_warp,
                leave_time_warp=out_time_warp,
                ),

            "outtop" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                leave=_movetop,
                time_warp=time_warp,
                leave_time_warp=out_time_warp,
                ),

            "outbottom" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                leave=_movebottom,
                time_warp=time_warp,
                leave_time_warp=out_time_warp,
                ),
            }

        for k, v in moves.iteritems():
            setattr(store, prefix + k, v)

    def old_move_transitions(prefix, delay, time_warp=None, in_time_warp=None, out_time_warp=None, old=False, layers=[ 'master' ], **kwargs):
        moves = {
            "" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs)),

            "inright" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                enter_factory=MoveIn((1.0, None, 0.0, None), time_warp=in_time_warp, **kwargs)),

            "inleft" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                enter_factory=MoveIn((0.0, None, 1.0, None), time_warp=in_time_warp, **kwargs)),

            "intop" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                enter_factory=MoveIn((None, 0.0, None, 1.0), time_warp=in_time_warp, **kwargs)),

            "inbottom" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                enter_factory=MoveIn((None, 1.0, None, 0.0), time_warp=in_time_warp, **kwargs)),

            "outright" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                leave_factory=MoveOut((1.0, None, 0.0, None), time_warp=out_time_warp, **kwargs)),

            "outleft" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                leave_factory=MoveOut((0.0, None, 1.0, None), time_warp=out_time_warp, **kwargs)),

            "outtop" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                leave_factory=MoveOut((None, 0.0, None, 1.0), time_warp=out_time_warp, **kwargs)),

            "outbottom" : MoveTransition(
                delay,
                old=old,
                layers=layers,
                factory=MoveFactory(time_warp=time_warp, **kwargs),
                leave_factory=MoveOut((None, 1.0, None, 0.0), time_warp=time_warp, **kwargs)),
            }

        for k, v in moves.iteritems():
            setattr(store, prefix + k, v)

    define.move_transitions = move_transitions
    define.old_move_transitions = old_move_transitions
    del move_transitions
    del old_move_transitions

    define.move_transitions("move", 0.5)
    define.move_transitions("ease", 0.5, _ease_time_warp, _ease_in_time_warp, _ease_out_time_warp)

init -1400:
    image black = Solid("#000")

    # Simple transitions.
    define fade = Fade(.5, 0, .5) # Fade to black and back.
    define dissolve = Dissolve(0.5)
    define pixellate = Pixellate(1.0, 5)

    # Various uses of CropMove.
    define wiperight = CropMove(1.0, "wiperight")
    define wipeleft = CropMove(1.0, "wipeleft")
    define wipeup = CropMove(1.0, "wipeup")
    define wipedown = CropMove(1.0, "wipedown")

    define slideright = CropMove(1.0, "slideright")
    define slideleft = CropMove(1.0, "slideleft")
    define slideup = CropMove(1.0, "slideup")
    define slidedown = CropMove(1.0, "slidedown")

    define slideawayright = CropMove(1.0, "slideawayright")
    define slideawayleft = CropMove(1.0, "slideawayleft")
    define slideawayup = CropMove(1.0, "slideawayup")
    define slideawaydown = CropMove(1.0, "slideawaydown")

    define irisout = CropMove(1.0, "irisout")
    define irisin = CropMove(1.0, "irisin")
    
    # Various uses of PushMove.
    define pushright = PushMove(1.0, "pushright")
    define pushleft = PushMove(1.0, "pushleft")
    define pushup = PushMove(1.0, "pushup")
    define pushdown = PushMove(1.0, "pushdown")

    # Zoom-based transitions. Legacy - nowadays, these are probably best done with ATL.
    define zoomin = OldMoveTransition(0.5, enter_factory=ZoomInOut(0.01, 1.0))
    define zoomout = OldMoveTransition(0.5, leave_factory=ZoomInOut(1.0, 0.01))
    define zoominout = OldMoveTransition(0.5, enter_factory=ZoomInOut(0.01, 1.0), leave_factory=ZoomInOut(1.0, 0.01))

    # These shake the screen up and down for a quarter second.
    # The delay needs to be an integer multiple of the period.
    define vpunch = Move((0, 10), (0, -10), .10, bounce=True, repeat=True, delay=.275)
    define hpunch = Move((15, 0), (-15, 0), .10, bounce=True, repeat=True, delay=.275)

    # These use the ImageDissolve to do some nifty effects.
    define blinds = ImageDissolve(im.Tile("blindstile.png"), 1.0, 8)
    define squares = ImageDissolve(im.Tile("squarestile.png"), 1.0, 256)

    # The default narrator.
    define _narrator = Character(None, kind=adv, what_style='say_thought')

init 1400 python:
    if not hasattr(store, 'narrator'):
        narrator = _narrator

    renpy.pure('narrator')
    renpy.pure('name_only')

    if not hasattr(store, 'centered'):
        centered = Character(None, what_style="centered_text", window_style="centered_window")
    if not hasattr(store, 'vcentered'):
        vcentered = Character(None, what_style="centered_vtext", window_style="centered_window")

    renpy.pure('centered')
    renpy.pure('vcentered')

    # This is necessary to ensure that config.default_transform works.
    if config.default_transform:
        config.default_transform._show()
