Mercurial > skaapsteker
annotate skaapsteker/sprites/player.py @ 202:a11325bc5ff0
Sprite refactoring stuff.
| author | Jeremy Thurgood <firxen@gmail.com> |
|---|---|
| date | Wed, 06 Apr 2011 22:42:35 +0200 |
| parents | 4e3f9cb49489 |
| children | 0a793c4ac341 |
| rev | line source |
|---|---|
| 90 | 1 """Class for dealing with the player""" |
| 2 | |
| 3 import pygame.transform | |
| 4 import os | |
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5 import time |
| 90 | 6 |
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7 from skaapsteker.sprites.base import TILE_SIZE, PC_LAYER, MONSTER_LAYER |
| 90 | 8 from skaapsteker.physics import Sprite |
| 9 from skaapsteker.constants import Layers | |
| 10 from skaapsteker.data import get_files, load_image | |
| 11 | |
| 12 | |
| 13 class Player(Sprite): | |
| 14 | |
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15 collision_layer = PC_LAYER |
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16 collides_with = set([MONSTER_LAYER]) |
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17 wants_updates = True |
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18 |
| 90 | 19 def __init__(self): |
| 20 Sprite.__init__(self) | |
| 21 self.image = None | |
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22 self.rect = None |
| 90 | 23 self._image_dict = {} |
| 120 | 24 self._animation_frame = 0.0 |
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25 self._last_time = time.time() |
| 90 | 26 # State flags and such |
| 27 self.running = False | |
| 28 self.jumping = False | |
| 29 self.flying = False | |
| 30 self._load_images() | |
| 31 # We muck with these in load for convience, so ensure they're right | |
| 32 self.tails = 0 | |
| 33 self.set_facing('left') | |
| 34 self.set_image() | |
| 35 self.set_pos((0, 0)) | |
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36 self._collisions_seen = 0 |
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37 self._last_collide = [] |
| 90 | 38 self._layer = Layers.PLAYER |
| 39 | |
| 40 def set_image(self): | |
| 41 key = self._make_key() | |
| 120 | 42 images = self._image_dict[key] |
| 43 if self._animation_frame >= len(images): | |
| 44 self._animation_frame = 0.0 | |
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45 if self.rect: |
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46 cur_pos = self.collide_rect.midbottom |
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47 else: |
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48 cur_pos = (0, 0) |
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49 |
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50 # TODO: can save a lot of calculation here by caching collision rects |
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51 cand_image = images[int(self._animation_frame)] |
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52 cand_collide_rect = cand_image.get_bounding_rect(1).inflate(-2,-2) |
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53 cand_rect = cand_image.get_rect() |
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54 cand_rect_offset = cand_rect.centerx - cand_collide_rect.centerx, cand_rect.bottom - cand_collide_rect.bottom |
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55 cand_rect.midbottom = cur_pos[0] + cand_rect_offset[0], cur_pos[1] + cand_rect_offset[1] |
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56 cand_collide_rect.midbottom = cur_pos |
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57 if not self.check_collide_rect(cand_collide_rect, cand_rect, cand_image): |
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58 return |
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59 |
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60 self.image = cand_image |
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61 self.collide_rect = cand_collide_rect |
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62 self.rect = cand_rect |
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63 self.rect_offset = cand_rect_offset |
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64 self.init_pos() |
| 90 | 65 |
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66 def update(self): |
| 120 | 67 v_x, v_y = self.velocity |
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68 # Never animate slower than !7 fps, never faster than ~15 fps |
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69 old_frame = self._animation_frame |
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70 self._animation_frame += abs(v_x) / 300 |
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71 time_diff = time.time() - self._last_time |
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72 if int(self._animation_frame) - int(old_frame) > 0: |
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73 # Check time diff |
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74 if time_diff < 0.10: |
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75 # Delay animation frame jump |
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76 self._animation_frame -= abs(v_x) / 300 |
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77 else: |
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78 self._last_time = time.time() |
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79 elif time_diff > 0.20: |
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80 # Force animation frame jump |
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81 self._animation_frame = old_frame + 1 |
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82 self._last_time = time.time() |
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83 if abs(v_x) < 80: |
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84 # Clamp when we're not moving at least 5 pixel / s |
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85 self.velocity = (0, v_y) |
| 160 | 86 self.running = not self.on_solid # if you're not on something you can't stand |
| 120 | 87 else: |
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88 self.velocity = (0, v_y) # Standard platformer physics |
| 120 | 89 self.running = True |
| 90 self.set_image() | |
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91 if self._collisions_seen > 2 * len(self._last_collide): |
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92 # Can we find a position "nearby" that reduces the collision |
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93 # surface |
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94 best_move = (0, 0) |
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95 clip_area = 0 |
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96 for obj in self._last_collide[:]: |
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97 if not obj.collide_rect.colliderect(self.collide_rect): |
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98 # Prune stale objects from the list |
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99 self._last_collide.remove(obj) |
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100 continue |
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101 clip = obj.collide_rect.clip(self.collide_rect) |
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102 clip_area += clip.width * clip.height |
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103 if (obj.floor or obj.block) and \ |
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104 clip.width > TILE_SIZE[0] / 2 and \ |
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105 self.collide_rect.bottom < obj.collide_rect.top + TILE_SIZE[1] / 3: |
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106 delta = self.rect.bottom - self.collide_rect.bottom |
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107 self.collide_rect.bottom = obj.collide_rect.top - 1 |
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108 self.rect.bottom = self.collide_rect.bottom + delta |
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109 self.init_pos() |
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110 return # Jump out of this case |
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111 min_area = clip_area |
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112 for attempt in [(0, 2), (2, 0), (-2, 0), (2, 2), (-2, 2)]: |
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113 clip_area = 0 |
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114 for obj in self._last_collide: |
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115 cand_rect = self.collide_rect.move(attempt) |
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116 clip = obj.collide_rect.clip(cand_rect) |
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117 clip_area += clip.width * clip.height |
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118 if clip_area < min_area: |
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119 min_area = clip_area |
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120 best_move = attempt |
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121 self.collide_rect.move_ip(best_move) |
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122 self.rect.move_ip(best_move) |
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123 self.init_pos() |
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124 self._last_collide = [] |
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125 self._collisions_seen = 0 |
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126 |
| 90 | 127 def set_facing(self, new_facing): |
| 128 self.facing = new_facing | |
| 129 | |
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130 def collided(self, other): |
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131 if other not in self._last_collide: |
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132 self._last_collide.append(other) |
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133 self._collide_pos = self.collide_rect.midbottom |
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134 self._collisions_seen = 0 |
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135 else: |
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136 self._collisions_seen += 1 |
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137 if hasattr(other, 'collided_player'): |
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138 other.collided_player() |
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139 |
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140 |
| 90 | 141 def set_pos(self, pos): |
| 142 self.starting_tile_pos = pos | |
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143 self.rect.midbottom = pos[0] * TILE_SIZE[0] + self.rect_offset[0], (pos[1] + 1) * TILE_SIZE[1] + self.rect_offset[1] |
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144 self.collide_rect.midbottom = pos[0] * TILE_SIZE[0], pos[1] * TILE_SIZE[1] |
| 90 | 145 |
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146 def action_left(self): |
| 115 | 147 if self.facing != 'left': |
| 148 self.facing = 'left' | |
| 149 self.set_image() | |
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150 self.deltav((-450.0, 0.0)) |
| 90 | 151 |
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102
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152 def action_right(self): |
| 115 | 153 if self.facing != 'right': |
| 154 self.facing = 'right' | |
| 155 self.set_image() | |
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156 self.deltav((450.0, 0.0)) |
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102
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157 |
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158 def action_up(self): |
|
152
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159 if self.on_solid: |
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160 self.deltav((0.0, -self.terminal_velocity[1])) |
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152
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161 self.on_solid = False |
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102
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162 |
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163 def action_down(self): |
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103
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Simon Cross <hodgestar@gmail.com>
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164 self.deltav((0.0, 100.0)) |
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165 |
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166 def action_fire1(self): |
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167 print "F1" |
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168 |
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169 def action_fire2(self): |
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170 print "F2" |
| 90 | 171 |
| 172 def _get_action(self): | |
| 173 if self.running: | |
| 174 return 'running' | |
| 175 if self.jumping: | |
| 176 return 'jumpin' | |
| 177 return 'standing' | |
| 178 | |
| 179 def _make_key(self, action=None): | |
| 180 if action is None: | |
| 181 action = self._get_action() | |
| 182 tails = self.tails | |
| 183 if self.tails >= 4: | |
| 184 tails = 4 | |
| 185 elif self.tails >= 2: | |
| 186 tails = 2 | |
| 187 return '%s %s %d' % (action, self.facing, tails) | |
| 188 | |
| 189 def _load_images(self): | |
| 158 | 190 for action in ['standing', 'running', 'jumping', 'attacking']: |
| 90 | 191 for tails in [0, 1, 2, 4]: |
| 192 self.tails = tails | |
| 193 directory = os.path.join('sprites', | |
| 194 'kitsune_%s' % action, | |
| 195 'kitsune_%s_%dtail' % (action, tails)) | |
| 196 for facing in ['left', 'right']: | |
| 197 self.facing = facing | |
| 198 key = self._make_key(action) | |
| 199 self._image_dict[key] = [] | |
| 200 for image_file in get_files(directory): | |
| 201 if image_file.startswith('.'): | |
| 202 # Skip extra junk for now | |
| 203 continue | |
| 204 image = load_image(os.path.join(directory, image_file)) | |
| 205 if facing == 'right': | |
| 206 image = pygame.transform.flip(image, True, False) | |
| 207 self._image_dict[key].append(image) |