rk_island/game/scene.py

86 lines
2.2 KiB
Python

# Copyright (C) 2022 RozK
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
class Group:
__slots__ = '_subnodes'
def __init__(self, *subnodes):
self._subnodes = subnodes
def draw(self, time):
for subnode in self._subnodes:
subnode.draw(time)
class SceneGroup(Group):
pass
class TextureGroup(Group):
__slots__ = '_textures'
def __init__(self, textures, *subnodes):
Group.__init__(self, *subnodes)
self._textures = textures
def draw(self, time):
items = self._textures.items()
for slot, texture in items:
texture.select(slot)
Group.draw(self, time)
for slot, texture in items:
texture.unselect(slot)
class ShaderGroup(Group):
__slots__ = '_shader'
def __init__(self, shader, *subnodes):
Group.__init__(self, *subnodes)
self._shader = shader
def draw(self, time):
self._shader.select()
Group.draw(self, time)
self._shader.unselect()
class InputNode:
__slots__ = '_shader', '_inputs'
def __init__(self, shader, *inputs):
self._shader = shader
self._inputs = inputs
def draw(self, time):
shader = self._shader
for input in self._inputs:
input.set_inputs(shader)
class DrawNode:
__slots__ = '_drawable'
def __init__(self, drawable):
self._drawable = drawable
def draw(self, time):
self._drawable.draw()
class FuncNode:
__slots__ = '_func', '_params'
def __init__(self, func, params):
self._func = func
self._params = params
def draw(self, time):
self._func(time, *self._params)