1__author__ = 'justinarmstrong'
  2import math
  3import pygame as pg
  4from .. import setup
  5
  6
  7class Person(pg.sprite.Sprite):
  8    """Base class for all world characters
  9    controlled by the computer"""
 10
 11    def __init__(self, sheet_key, x, y, direction='down'):
 12        super(Person, self).__init__()
 13        self.get_image = setup.tools.get_image
 14        self.spritesheet_dict = self.create_spritesheet_dict(sheet_key)
 15        self.animation_dict = self.create_animation_dict()
 16        self.index = 0
 17        self.direction = direction
 18        self.image_list = self.animation_dict[self.direction]
 19        self.image = self.image_list[self.index]
 20        self.rect = self.image.get_rect(left=x, top=y)
 21        self.old_rect = self.rect
 22        self.state_dict = self.create_state_dict()
 23        self.vector_dict = self.create_vector_dict()
 24        self.x_vel = 0
 25        self.y_vel = 0
 26        self.timer = 0.0
 27        self.current_time = 0.0
 28        self.state = 'resting'
 29        self.blockers = self.set_blockers()
 30
 31
 32    def create_spritesheet_dict(self, sheet_key):
 33        """Implemented by inheriting classes"""
 34        image_list = []
 35        image_dict = {}
 36        sheet = setup.GFX[sheet_key]
 37
 38        image_keys = ['facing up 1', 'facing up 2',
 39                      'facing down 1', 'facing down 2',
 40                      'facing left 1', 'facing left 2',
 41                      'facing right 1', 'facing right 2']
 42
 43        for row in range(2):
 44            for column in range(4):
 45                image_list.append(
 46                    self.get_image(self, column*32, row*32, 32, 32, sheet))
 47
 48        for key, image in zip(image_keys, image_list):
 49            image_dict[key] = image
 50
 51        return image_dict
 52
 53
 54    def create_animation_dict(self):
 55        """Return a dictionary of image lists for animation"""
 56        image_dict = self.spritesheet_dict
 57
 58        left_list = [image_dict['facing left 1'], image_dict['facing left 2']]
 59        right_list = [image_dict['facing right 1'], image_dict['facing right 2']]
 60        up_list = [image_dict['facing up 1'], image_dict['facing up 2']]
 61        down_list = [image_dict['facing down 1'], image_dict['facing down 2']]
 62
 63        direction_dict = {'left': left_list,
 64                          'right': right_list,
 65                          'up': up_list,
 66                          'down': down_list}
 67
 68        return direction_dict
 69
 70
 71    def create_state_dict(self):
 72        """Return a dictionary of all state methods"""
 73        state_dict = {'resting': self.resting,
 74                      'moving': self.moving}
 75
 76        return state_dict
 77
 78
 79    def create_vector_dict(self):
 80        """Return a dictionary of x and y velocities set to
 81        direction keys."""
 82        vector_dict = {'up': (0, -2),
 83                       'down': (0, 2),
 84                       'left': (-2, 0),
 85                       'right': (2, 0)}
 86
 87        return vector_dict
 88
 89
 90    def update(self, keys, current_time):
 91        """Implemented by inheriting classes"""
 92        self.blockers = self.set_blockers()
 93        self.current_time = current_time
 94        self.check_for_input()
 95        state_function = self.state_dict[self.state]
 96        state_function()
 97
 98
 99    def set_blockers(self):
100        """Sets blockers to prevent collision with other sprites"""
101        blockers = []
102
103        if self.state == 'resting':
104            blockers.append(pg.Rect(self.rect.x, self.rect.y, 32, 32))
105
106        elif self.state == 'moving':
107            if self.rect.x % 32 == 0:
108                tile_float = self.rect.y / float(32)
109                tile1 = (self.rect.x, math.ceil(tile_float)*32)
110                tile2 = (self.rect.x, math.floor(tile_float)*32)
111                tile_rect1 = pg.Rect(tile1[0], tile1[1], 32, 32)
112                tile_rect2 = pg.Rect(tile2[0], tile2[1], 32, 32)
113                blockers.extend([tile_rect1, tile_rect2])
114
115            elif self.rect.y % 32 == 0:
116                tile_float = self.rect.x / float(32)
117                tile1 = (math.ceil(tile_float)*32, self.rect.y)
118                tile2 = (math.floor(tile_float)*32, self.rect.y)
119                tile_rect1 = pg.Rect(tile1[0], tile1[1], 32, 32)
120                tile_rect2 = pg.Rect(tile2[0], tile2[1], 32, 32)
121                blockers.extend([tile_rect1, tile_rect2])
122
123        return blockers
124
125
126    def resting(self):
127        """
128        When the Person is not moving between tiles.
129        Checks if the player is centered on a tile.
130        """
131        self.image = self.image_list[self.index]
132
133        assert(self.rect.y % 32 == 0), ('Player not centered on tile: '
134                                        + str(self.rect.y))
135        assert(self.rect.x % 32 == 0), ('Player not centered on tile'
136                                        + str(self.rect.x))
137
138
139    def moving(self):
140        """Increment index and set self.image for animation."""
141        self.animation()
142
143        assert(self.rect.x % 32 == 0 or self.rect.y % 32 == 0), \
144            'Not centered on tile'
145
146
147    def animation(self):
148        """Adjust sprite image frame based on timer"""
149        if (self.current_time - self.timer) > 100:
150            if self.index < (len(self.image_list) - 1):
151                self.index += 1
152            else:
153                self.index = 0
154            self.timer = self.current_time
155
156        self.image = self.image_list[self.index]
157
158
159
160    def begin_moving(self, direction):
161        """Transition the player into the 'moving' state."""
162        self.direction = direction
163        self.image_list = self.animation_dict[direction]
164        self.timer = self.current_time
165        self.state = 'moving'
166        self.old_rect = self.rect
167
168        if self.rect.x % 32 == 0:
169            self.y_vel = self.vector_dict[self.direction][1]
170        if self.rect.y % 32 == 0:
171            self.x_vel = self.vector_dict[self.direction][0]
172
173
174    def begin_resting(self):
175        """Transition the player into the 'resting' state."""
176        self.state = 'resting'
177        self.index = 1
178        self.x_vel = self.y_vel = 0
179
180
181class Player(Person):
182    """User controlled character"""
183
184    def __init__(self, direction):
185        super(Player, self).__init__('player', 0, 0, direction)
186
187
188    def update(self, keys, current_time):
189        """Updates player behavior"""
190        self.blockers = self.set_blockers()
191        self.keys = keys
192        self.current_time = current_time
193        self.check_for_input()
194        state_function = self.state_dict[self.state]
195        state_function()
196
197
198    def check_for_input(self):
199        """Checks for player input"""
200        if self.state == 'resting':
201            if self.keys[pg.K_UP]:
202                self.begin_moving('up')
203            elif self.keys[pg.K_DOWN]:
204                self.begin_moving('down')
205            elif self.keys[pg.K_LEFT]:
206                self.begin_moving('left')
207            elif self.keys[pg.K_RIGHT]:
208                self.begin_moving('right')
209
210
211
212class Soldier(Person):
213    """Soldier for the castle"""
214
215    def __init__(self):
216        super(Soldier, self).__init__('soldier', x, y)
217
218
219class FemaleVillager(Person):
220    """Female Person for town"""
221
222    def __init__(self, x, y):
223        super(FemaleVillager, self).__init__('femalevillager', x, y)
224
225
226class MaleVillager(Person):
227    """Male Person for town"""
228
229    def __init__(self):
230        super(MaleVillager, self).__init__('male villager', x, y)
231