Mercurial > touhou
annotate pytouhou/game/background.py @ 53:e72166f73e30
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| author | Thibaut Girka <thib@sitedethib.com> |
|---|---|
| date | Mon, 22 Aug 2011 23:20:17 +0200 |
| parents | ab826bc29aa2 |
| children | a142e57218a0 |
| rev | line source |
|---|---|
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1 # -*- encoding: utf-8 -*- |
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2 ## |
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com> |
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4 ## |
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5 ## This program is free software; you can redistribute it and/or modify |
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6 ## it under the terms of the GNU General Public License as published |
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7 ## by the Free Software Foundation; version 3 only. |
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8 ## |
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9 ## This program is distributed in the hope that it will be useful, |
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 ## GNU General Public License for more details. |
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13 ## |
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14 |
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15 |
| 13 | 16 from io import BytesIO |
| 17 import os | |
| 18 import struct | |
| 19 from itertools import chain | |
| 20 | |
| 21 from pytouhou.utils.interpolator import Interpolator | |
| 15 | 22 from pytouhou.game.sprite import Sprite |
| 13 | 23 |
| 24 | |
| 25 class Background(object): | |
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26 def __init__(self, stage, anm_wrapper): |
| 15 | 27 self.stage = stage |
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28 self.anm_wrapper = anm_wrapper |
| 13 | 29 self.objects = [] |
| 30 self.object_instances = [] | |
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31 self.objects_by_texture = {} |
| 15 | 32 |
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33 self.position_interpolator = Interpolator((0, 0, 0)) |
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34 self.fog_interpolator = Interpolator((0, 0, 0, 0, 0)) |
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35 self.position2_interpolator = Interpolator((0, 0, 0)) |
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36 |
| 13 | 37 self.build_objects() |
| 38 self.build_object_instances() | |
| 39 | |
| 40 | |
| 41 def build_object_instances(self): | |
| 42 self.object_instances = [] | |
| 43 for obj, ox, oy, oz in self.stage.object_instances: | |
| 44 obj_id = self.stage.objects.index(obj) | |
| 45 | |
| 46 obj_instance = [] | |
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47 for face_vertices, face_uvs, face_colors in self.objects[obj_id]: |
| 13 | 48 obj_instance.append((tuple((x + ox, y + oy, z + oz) |
| 49 for x, y, z in face_vertices), | |
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50 face_uvs, |
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51 face_colors)) |
| 13 | 52 self.object_instances.append(obj_instance) |
| 53 # Z-sorting | |
| 54 def keyfunc(obj): | |
| 55 return min(z for face in obj for x, y, z in face[0]) | |
| 56 self.object_instances.sort(key=keyfunc, reverse=True) | |
| 57 | |
| 58 | |
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59 def object_instances_to_vertices_uvs_colors(self): |
| 13 | 60 vertices = tuple(vertex for obj in self.object_instances |
| 61 for face in obj for vertex in face[0]) | |
| 62 uvs = tuple(uv for obj in self.object_instances | |
| 63 for face in obj for uv in face[1]) | |
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64 colors = tuple(color for obj in self.object_instances |
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65 for face in obj for color in face[2]) |
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66 return vertices, uvs, colors |
| 13 | 67 |
| 68 | |
| 69 def build_objects(self): | |
| 70 self.objects = [] | |
| 71 for i, obj in enumerate(self.stage.objects): | |
| 72 faces = [] | |
| 15 | 73 for script_index, ox, oy, oz, width_override, height_override in obj.quads: |
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74 #TODO: per-texture rendering |
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75 anm, sprite = self.anm_wrapper.get_sprite(script_index) |
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76 if sprite.update(): |
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77 sprite.update_vertices_uvs_colors(width_override, height_override) |
| 15 | 78 uvs, vertices = sprite._uvs, tuple((x + ox, y + oy, z + oz) for x, y, z in sprite._vertices) |
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79 colors = sprite._colors |
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80 faces.append((vertices, uvs, colors)) |
| 13 | 81 self.objects.append(faces) |
| 82 | |
| 83 | |
| 84 def update(self, frame): | |
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85 if not self.objects_by_texture: |
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86 vertices, uvs, colors = self.object_instances_to_vertices_uvs_colors() |
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87 nb_vertices = len(vertices) |
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88 vertices_format = 'f' * (3 * nb_vertices) |
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89 uvs_format = 'f' * (2 * nb_vertices) |
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90 colors_format = 'B' * (4 * nb_vertices) |
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91 vertices = struct.pack(vertices_format, *chain(*vertices)) |
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92 uvs = struct.pack(uvs_format, *chain(*uvs)) |
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93 colors = struct.pack(colors_format, *chain(*colors)) |
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94 assert len(self.anm_wrapper.anm_files) == 1 #TODO |
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95 anm = self.anm_wrapper.anm_files[0] |
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96 self.objects_by_texture = {(anm.first_name, anm.secondary_name): (nb_vertices, vertices, uvs, colors)} |
| 13 | 97 |
| 98 for frame_num, message_type, args in self.stage.script: | |
| 99 if frame_num == frame: | |
| 14 | 100 if message_type == 0: |
| 101 self.position_interpolator.set_interpolation_start(frame_num, args) | |
| 102 elif message_type == 1: | |
| 13 | 103 self.fog_interpolator.set_interpolation_end_values(args) |
| 14 | 104 elif message_type == 2: |
| 105 self.position2_interpolator.set_interpolation_end_values(args) | |
| 13 | 106 elif message_type == 3: |
| 107 duration, = args | |
| 108 self.position2_interpolator.set_interpolation_end_frame(frame_num + duration) | |
| 109 elif message_type == 4: | |
| 110 duration, = args | |
| 111 self.fog_interpolator.set_interpolation_end_frame(frame_num + duration) | |
| 112 if frame_num > frame and message_type == 0: | |
| 113 self.position_interpolator.set_interpolation_end(frame_num, args) | |
| 114 break | |
| 115 | |
| 116 self.position2_interpolator.update(frame) | |
| 117 self.fog_interpolator.update(frame) | |
| 118 self.position_interpolator.update(frame) | |
| 119 |