| 1 | import math
|
|---|
| 2 | import textwrap
|
|---|
| 3 |
|
|---|
| 4 | import pygame
|
|---|
| 5 | import pygame.locals as pgl
|
|---|
| 6 | import pymunk
|
|---|
| 7 |
|
|---|
| 8 | from nagslang.options import options
|
|---|
| 9 | from nagslang.utils import (
|
|---|
| 10 | tile_surface, vec_from_angle, points_to_pygame, extend_line)
|
|---|
| 11 | from nagslang.widgets.text import LabelWidget, MultiLineWidget
|
|---|
| 12 |
|
|---|
| 13 |
|
|---|
| 14 | class Renderer(object):
|
|---|
| 15 | def set_game_object(self, game_object):
|
|---|
| 16 | self.game_object = game_object
|
|---|
| 17 |
|
|---|
| 18 | def _render_shape(self, surface):
|
|---|
| 19 | shape = self.game_object.get_shape()
|
|---|
| 20 | # Less general that pymunk.pygame_util.draw, but also a lot less noisy.
|
|---|
| 21 | color = getattr(shape, 'color', pygame.color.THECOLORS['lightblue'])
|
|---|
| 22 | # We only explicitly draw Circle and Poly shapes. Everything else we
|
|---|
| 23 | # forward to pymunk.
|
|---|
| 24 | if isinstance(shape, pymunk.Circle):
|
|---|
| 25 | centre = pymunk.pygame_util.to_pygame(shape.body.position, surface)
|
|---|
| 26 | radius = int(shape.radius)
|
|---|
| 27 | pygame.draw.circle(surface, color, centre, radius, 2)
|
|---|
| 28 | elif isinstance(shape, pymunk.Poly):
|
|---|
| 29 | # polygon bounding box
|
|---|
| 30 | points = [pymunk.pygame_util.to_pygame(p, surface)
|
|---|
| 31 | for p in shape.get_vertices()]
|
|---|
| 32 | pygame.draw.lines(surface, color, True, points, 2)
|
|---|
| 33 | else:
|
|---|
| 34 | pymunk.pygame_util.draw(surface, shape)
|
|---|
| 35 |
|
|---|
| 36 | def render(self, surface):
|
|---|
| 37 | if options.shapes:
|
|---|
| 38 | self._render_shape(surface)
|
|---|
| 39 |
|
|---|
| 40 | def update(self, seconds):
|
|---|
| 41 | # Used by time animatations to advance the clock
|
|---|
| 42 | pass
|
|---|
| 43 |
|
|---|
| 44 |
|
|---|
| 45 | class NullRenderer(Renderer):
|
|---|
| 46 | def render(self, surface):
|
|---|
| 47 | pass
|
|---|
| 48 |
|
|---|
| 49 |
|
|---|
| 50 | class HatchRendererMixin(object):
|
|---|
| 51 | def draw_hatch_line(self, surface, a, b):
|
|---|
| 52 | ai, bi = extend_line(a, b, -2)
|
|---|
| 53 | a, b, ai, bi = points_to_pygame(surface, (a, b, ai, bi))
|
|---|
| 54 | pygame.draw.line(
|
|---|
| 55 | surface, pygame.color.THECOLORS['black'], a, b, 7)
|
|---|
| 56 | pygame.draw.line(
|
|---|
| 57 | surface, pygame.color.THECOLORS['lightblue'], ai, bi, 5)
|
|---|
| 58 |
|
|---|
| 59 | def render_hatch(self, surface):
|
|---|
| 60 | shape = self.game_object.get_shape()
|
|---|
| 61 | a = shape.body.local_to_world(shape.a)
|
|---|
| 62 | b = shape.body.local_to_world(shape.b)
|
|---|
| 63 | if self.game_object.puzzler.get_state():
|
|---|
| 64 | offset = vec_from_angle((b - a).angle, 10)
|
|---|
| 65 | ai = a + offset
|
|---|
| 66 | bi = b - offset
|
|---|
| 67 | self.draw_hatch_line(surface, a, ai)
|
|---|
| 68 | self.draw_hatch_line(surface, bi, b)
|
|---|
| 69 | else:
|
|---|
| 70 | mid = a + (b - a) / 2
|
|---|
| 71 | self.draw_hatch_line(surface, a, mid)
|
|---|
| 72 | self.draw_hatch_line(surface, mid, b)
|
|---|
| 73 |
|
|---|
| 74 |
|
|---|
| 75 | class HatchRenderer(Renderer, HatchRendererMixin):
|
|---|
| 76 | def render(self, surface):
|
|---|
| 77 | self.render_hatch(surface)
|
|---|
| 78 |
|
|---|
| 79 |
|
|---|
| 80 | def image_pos(image, pos):
|
|---|
| 81 | return (pos[0] - image.get_width() / 2,
|
|---|
| 82 | pos[1] - image.get_height() / 2)
|
|---|
| 83 |
|
|---|
| 84 |
|
|---|
| 85 | class ImageRenderer(Renderer):
|
|---|
| 86 | def __init__(self, image):
|
|---|
| 87 | self._image = image
|
|---|
| 88 |
|
|---|
| 89 | def get_image(self):
|
|---|
| 90 | return self._image
|
|---|
| 91 |
|
|---|
| 92 | def rotate_image(self, image):
|
|---|
| 93 | angle = self.game_object.get_render_angle() * 180 / math.pi
|
|---|
| 94 | return pygame.transform.rotate(image, angle)
|
|---|
| 95 |
|
|---|
| 96 | def render_image(self, surface, image):
|
|---|
| 97 | image = self.rotate_image(image)
|
|---|
| 98 | pos = self.game_object.get_render_position(surface)
|
|---|
| 99 | surface.blit(image, image_pos(image, pos))
|
|---|
| 100 |
|
|---|
| 101 | def render(self, surface):
|
|---|
| 102 | self.render_image(surface, self.get_image())
|
|---|
| 103 | super(ImageRenderer, self).render(surface)
|
|---|
| 104 |
|
|---|
| 105 |
|
|---|
| 106 | class KeyedHatchRenderer(ImageRenderer, HatchRendererMixin):
|
|---|
| 107 | def render(self, surface):
|
|---|
| 108 | self.render_hatch(surface)
|
|---|
| 109 | if not self.game_object.puzzler.get_state():
|
|---|
| 110 | self.render_image(surface, self.get_image())
|
|---|
| 111 |
|
|---|
| 112 |
|
|---|
| 113 | class ImageStateRenderer(ImageRenderer):
|
|---|
| 114 | def __init__(self, state_images):
|
|---|
| 115 | self._state_images = state_images
|
|---|
| 116 |
|
|---|
| 117 | def get_image(self):
|
|---|
| 118 | return self._state_images[self.game_object.puzzler.get_state()]
|
|---|
| 119 |
|
|---|
| 120 |
|
|---|
| 121 | class TimedAnimatedRenderer(ImageRenderer):
|
|---|
| 122 | def __init__(self, images, frame_ticks=1):
|
|---|
| 123 | self._images = images
|
|---|
| 124 | self._frame_ticks = frame_ticks
|
|---|
| 125 | self._frame_tick = 0
|
|---|
| 126 | self._frame = 0
|
|---|
| 127 |
|
|---|
| 128 | def advance_tick(self):
|
|---|
| 129 | self._frame_tick += 1
|
|---|
| 130 | if self._frame_tick > self._frame_ticks:
|
|---|
| 131 | self._frame_tick = 0
|
|---|
| 132 | self._frame += 1
|
|---|
| 133 | if self._frame >= len(self._images):
|
|---|
| 134 | self._frame = 0
|
|---|
| 135 |
|
|---|
| 136 | def reset(self):
|
|---|
| 137 | self._frame_tick = 0
|
|---|
| 138 | self._frame = 0
|
|---|
| 139 |
|
|---|
| 140 | def get_image(self):
|
|---|
| 141 | return self._images[self._frame]
|
|---|
| 142 |
|
|---|
| 143 | def update(self, seconds):
|
|---|
| 144 | self.advance_tick()
|
|---|
| 145 |
|
|---|
| 146 |
|
|---|
| 147 | class MovementAnimatedRenderer(TimedAnimatedRenderer):
|
|---|
| 148 | def update(self, seconds):
|
|---|
| 149 | if self.game_object.is_moving:
|
|---|
| 150 | self.advance_tick()
|
|---|
| 151 | else:
|
|---|
| 152 | self.reset()
|
|---|
| 153 |
|
|---|
| 154 |
|
|---|
| 155 | class RendererSelectionRenderer(Renderer):
|
|---|
| 156 | def __init__(self, renderers):
|
|---|
| 157 | self._renderers = renderers
|
|---|
| 158 |
|
|---|
| 159 | def set_game_object(self, game_object):
|
|---|
| 160 | self.game_object = game_object
|
|---|
| 161 | for renderer in self._renderers.values():
|
|---|
| 162 | renderer.set_game_object(game_object)
|
|---|
| 163 |
|
|---|
| 164 | @property
|
|---|
| 165 | def renderer(self):
|
|---|
| 166 | return self._renderers[self.select_renderer()]
|
|---|
| 167 |
|
|---|
| 168 | def render(self, surface):
|
|---|
| 169 | return self.renderer.render(surface)
|
|---|
| 170 |
|
|---|
| 171 | def update(self, seconds):
|
|---|
| 172 | return self.renderer.update(seconds)
|
|---|
| 173 |
|
|---|
| 174 | def select_renderer(self):
|
|---|
| 175 | raise NotImplementedError()
|
|---|
| 176 |
|
|---|
| 177 |
|
|---|
| 178 | class FacingSelectionRenderer(RendererSelectionRenderer):
|
|---|
| 179 | def select_renderer(self):
|
|---|
| 180 | return self.game_object.get_facing_direction()
|
|---|
| 181 |
|
|---|
| 182 |
|
|---|
| 183 | class ShapeRenderer(Renderer):
|
|---|
| 184 | def render(self, surface):
|
|---|
| 185 | self._render_shape(surface)
|
|---|
| 186 | super(ShapeRenderer, self).render(surface)
|
|---|
| 187 |
|
|---|
| 188 |
|
|---|
| 189 | class ShapeStateRenderer(ShapeRenderer):
|
|---|
| 190 | """Renders the shape in a different colour depending on the state.
|
|---|
| 191 |
|
|---|
| 192 | Requires the game object it's attached to to have a puzzler.
|
|---|
| 193 | """
|
|---|
| 194 | def render(self, surface):
|
|---|
| 195 | if self.game_object.puzzler.get_state():
|
|---|
| 196 | color = pygame.color.THECOLORS['green']
|
|---|
| 197 | else:
|
|---|
| 198 | color = pygame.color.THECOLORS['red']
|
|---|
| 199 |
|
|---|
| 200 | self.game_object.get_shape().color = color
|
|---|
| 201 | super(ShapeStateRenderer, self).render(surface)
|
|---|
| 202 |
|
|---|
| 203 |
|
|---|
| 204 | class Overlay(object):
|
|---|
| 205 | def set_game_object(self, game_object):
|
|---|
| 206 | self.game_object = game_object
|
|---|
| 207 |
|
|---|
| 208 | def render(self, surface, display_offset, max_width):
|
|---|
| 209 | pass
|
|---|
| 210 |
|
|---|
| 211 | def is_visible(self):
|
|---|
| 212 | return self.game_object.puzzler.get_state()
|
|---|
| 213 |
|
|---|
| 214 |
|
|---|
| 215 | class TextOverlay(Overlay):
|
|---|
| 216 | def __init__(self, text, **kwargs):
|
|---|
| 217 | self.text = text
|
|---|
| 218 | self.widget = LabelWidget((20, 20), self.text, **kwargs)
|
|---|
| 219 |
|
|---|
| 220 | def render(self, surface, display_offset, max_width):
|
|---|
| 221 | x, y = 20, 20
|
|---|
| 222 | if display_offset[0] < 0:
|
|---|
| 223 | x += abs(display_offset[0])
|
|---|
| 224 | if display_offset[1] < 0:
|
|---|
| 225 | y += abs(display_offset[1])
|
|---|
| 226 | if self.widget.rect.width > max_width - 40:
|
|---|
| 227 | # Need to relayout the widget
|
|---|
| 228 | factor = 2
|
|---|
| 229 | while self.widget.rect.width > max_width - 40:
|
|---|
| 230 | wrapped = '\n'.join(textwrap.wrap(self.text,
|
|---|
| 231 | len(self.text) // factor))
|
|---|
| 232 | factor *= 2
|
|---|
| 233 | self.widget = MultiLineWidget((20, 20), wrapped)
|
|---|
| 234 | if self.widget.rect.width < 100:
|
|---|
| 235 | # safety valve
|
|---|
| 236 | break
|
|---|
| 237 | self.widget.rect.topleft = (x, y)
|
|---|
| 238 | self.widget.draw(surface)
|
|---|
| 239 | # TODO: undo the mad folding
|
|---|
| 240 | else:
|
|---|
| 241 | self.widget.rect.topleft = (x, y)
|
|---|
| 242 | self.widget.draw(surface)
|
|---|
| 243 |
|
|---|
| 244 |
|
|---|
| 245 | class ImageOverlay(Overlay):
|
|---|
| 246 | def __init__(self, image):
|
|---|
| 247 | self.image = image
|
|---|
| 248 |
|
|---|
| 249 | def render(self, surface, display_offset, max_width):
|
|---|
| 250 | x = (surface.get_width() - self.image.get_width()) / 2
|
|---|
| 251 | y = (surface.get_height() - self.image.get_height()) / 2
|
|---|
| 252 | surface.blit(self.image, (x, y))
|
|---|
| 253 |
|
|---|
| 254 |
|
|---|
| 255 | class TiledRenderer(Renderer):
|
|---|
| 256 | """Tile the given image to fit the given outline
|
|---|
| 257 |
|
|---|
| 258 | Outline is assumed to be in pymunk coordinates"""
|
|---|
| 259 |
|
|---|
| 260 | def __init__(self, outline, tile_image, alpha=255):
|
|---|
| 261 | self._tile_image = tile_image
|
|---|
| 262 | self.outline = outline
|
|---|
| 263 | self._tiled = None
|
|---|
| 264 | self._offset = None
|
|---|
| 265 | self._alpha = alpha
|
|---|
| 266 |
|
|---|
| 267 | def _make_surface(self, surface, image):
|
|---|
| 268 | size = surface.get_size()
|
|---|
| 269 | mask = pygame.surface.Surface(size, pgl.SRCALPHA)
|
|---|
| 270 | pointlist = [pymunk.pygame_util.to_pygame(p, surface)
|
|---|
| 271 | for p in self.outline]
|
|---|
| 272 | rect = pygame.draw.polygon(mask,
|
|---|
| 273 | pygame.color.Color(
|
|---|
| 274 | 255, 255, 255, self._alpha),
|
|---|
| 275 | pointlist, 0)
|
|---|
| 276 | self._offset = (rect.x, rect.y)
|
|---|
| 277 | tiled = tile_surface((rect.w, rect.h), image)
|
|---|
| 278 | tiled.blit(mask, (0, 0), rect,
|
|---|
| 279 | special_flags=pgl.BLEND_RGBA_MULT)
|
|---|
| 280 | return tiled
|
|---|
| 281 |
|
|---|
| 282 | def render(self, surface):
|
|---|
| 283 | if not self._tiled:
|
|---|
| 284 | self._tiled = self._make_surface(surface, self._tile_image)
|
|---|
| 285 | surface.blit(self._tiled, self._offset)
|
|---|
| 286 | super(TiledRenderer, self).render(surface)
|
|---|
| 287 |
|
|---|
| 288 |
|
|---|
| 289 | class TimedTiledRenderer(TiledRenderer):
|
|---|
| 290 | """Animate tiles"""
|
|---|
| 291 |
|
|---|
| 292 | # Should make this a mixin with TimeAnimate, but not right now
|
|---|
| 293 |
|
|---|
| 294 | def __init__(self, outline, images, frame_ticks=1, alpha=255):
|
|---|
| 295 | self._images = images
|
|---|
| 296 | self._frame_ticks = frame_ticks
|
|---|
| 297 | self.outline = outline
|
|---|
| 298 | self._frames = [None] * len(images)
|
|---|
| 299 | self._offset = None
|
|---|
| 300 | self._alpha = alpha
|
|---|
| 301 | self._frame = 0
|
|---|
| 302 | self._frame_tick = 0
|
|---|
| 303 |
|
|---|
| 304 | def advance_tick(self):
|
|---|
| 305 | self._frame_tick += 1
|
|---|
| 306 | if self._frame_tick > self._frame_ticks:
|
|---|
| 307 | self._frame_tick = 0
|
|---|
| 308 | self._frame += 1
|
|---|
| 309 | if self._frame >= len(self._images):
|
|---|
| 310 | self._frame = 0
|
|---|
| 311 |
|
|---|
| 312 | def reset(self):
|
|---|
| 313 | self._frame_tick = 0
|
|---|
| 314 | self._frame = 0
|
|---|
| 315 |
|
|---|
| 316 | def update(self, seconds):
|
|---|
| 317 | self.advance_tick()
|
|---|
| 318 |
|
|---|
| 319 | def render(self, surface):
|
|---|
| 320 | if not self._frames[self._frame]:
|
|---|
| 321 | self._frames[self._frame] = self._make_surface(
|
|---|
| 322 | surface, self._images[self._frame])
|
|---|
| 323 | self._tiled = self._frames[self._frame]
|
|---|
| 324 | super(TimedTiledRenderer, self).render(surface)
|
|---|
![(please configure the [header_logo] section in trac.ini)](/trac/nagslang/chrome/common/trac_banner.png)
