Mercurial > rinkhals

annotate gamelib/helpscreen.py @ 579:0e552e7e06fe

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Use constant vertical position for buttons
author Neil Muller <drnlmuller@gmail.com>
date Sat, 28 Nov 2009 20:52:22 +0000
parents ecad90bbdc61
children
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1 """Help screen."""
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2
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3 from pgu import gui
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4 import pygame
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5 import constants
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6 import imagecache
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7
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8 HELP = [
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9 """Welcome to %s!
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10
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11 INTRODUCTION:
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12
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13 The aim of the game is to make as much money as possible from your chicken
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14 farm. The problem is that chickens are delicious and foxes want to eat them.
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15 Since hiring guards is too expensive and too unreliable, the obvious solution
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16 is to help the chickens defend themselves.
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17
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18 You lose if you end a night with no chickens left.
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19
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20 Check the in-game controls reference for information about keys and mouse buttons!
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21
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22 """ % constants.NAME,
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23
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24 """BIOLOGY AND ECONOMICS:
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25
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26 Chickens only lay eggs in henhouses. An egg must be incubated for two days to
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27 hatch. Chickens that hatch in already full henhouses are moved outside. If there
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28 is no space left next to the henhouse, they die immediately from overcrowding.
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29
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30 Chickens have short attention spans, and will stray from where you put them at
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31 the end of the day if they are out in the open.
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32
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33 You can sell chickens and eggs. Only one egg per chicken will hatch; the excess
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34 is sold automatically. The fox pelts your chickens acquire during their violent
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35 nocturnal activities are also sold automatically.
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36
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37 Buildings require wood to construct. You can buy and sell wood. If you equip a
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38 chicken with an axe and place it next to some trees, it will chop some down at the
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39 end of the day.
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40
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41 """,
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42
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43 """EQUIPMENT:
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44
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45 AXE: For chopping down trees. Doubles as a weapon, but it's not very good. \\
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46 HELMET: Cheap armour. \\
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47 KEVLAR: More expensive and durable armour. \\
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48 KNIFE: Easy to use, but only at melee range, \\
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49 RIFLE: Ranged weapon; requires more skill. \\
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50 SNIPER RIFLE: Longer range and better accuracy than the plain rifle, but less ammo per clip.
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51
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52 You can sell equipment, but you don't get the full price back.
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53
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54 Guns use ammunition. You have an unlimited supply, but chickens don't have pockets, so they
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55 can only use one clip per night.
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56
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57 """,
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58
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59 """
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60 BUILDINGS:
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61
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62 HENHOUSE: The standard chicken dwelling. \\
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63 HENDOMINIUM: A luxury double-storey chicken dwelling. \\
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64 WATCHTOWER: A lookout post which helps chickens with rifles to see better and further away. \\
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65 FENCE: A barrier to both foxes and chickens.
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67 You can repair broken fences and demolish buildings for their wood. You won't get as
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68 much as you started with -- chickens are bad tenants and peck holes in everything.
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69
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70 """,
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71
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72 """
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73 THE ENEMY:
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74
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75 FOX: One of the little furry gluttons who are gorging themselves on your chickens. \\
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76 GREEDY FOX: Doesn't have the decency to stop at just one chicken. \\
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77 NINJA FOX: Tries to sneak past your chicken guards. \\
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78 SAPPER FOX: Blows up your fences with explosives. \\
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79 RINKHALS: Not in fact a fox at all. It has eclectic tastes. \\
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80
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81 """,
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82 ]
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83
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84 LEVEL_TEXT="""The currently selected level is '%(name)s'.
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85
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86 The goal is:
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87 '%(goal)s'.
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88 """
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89
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90 def make_help_screen(level):
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91 """Create a main menu"""
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92 help_screen = HelpScreen(level, width=600)
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93
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94 c = HelpContainer(align=0, valign=0)
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95 c.add(help_screen, 0, 0)
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96
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97 return c
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98
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99 class HelpContainer(gui.Container):
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100 def paint(self, s):
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101 pygame.display.set_caption('Instructions')
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102 splash = imagecache.load_image("images/splash.png", ["lighten_most"])
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103 pygame.display.get_surface().blit(splash, (0, 0))
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104 gui.Container.paint(self, s)
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105
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106 class HelpScreen(gui.Document):
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107 def __init__(self, level, **params):
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108 gui.Document.__init__(self, **params)
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109
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110 self.cur_page = 0
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111
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112 self.level = level
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113
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114 def done_pressed():
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115 pygame.event.post(constants.GO_MAIN_MENU)
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116
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117 def next_page():
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118 self.cur_page += 1
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119 if self.cur_page >= len(HELP):
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120 self.cur_page = 0
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121 self.redraw()
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122
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123 def prev_page():
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124 self.cur_page -= 1
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125 if self.cur_page < 0:
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126 self.cur_page = len(HELP) - 1
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127 self.redraw()
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128
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129 self.done_button = gui.Button("Return to Main Menu")
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130 self.done_button.connect(gui.CLICK, done_pressed)
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131
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132 self.prev_button = gui.Button("Prev Page")
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133 self.prev_button.connect(gui.CLICK, prev_page)
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134
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135 self.next_button = gui.Button("Next Page")
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136 self.next_button.connect(gui.CLICK, next_page)
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137
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138 self.redraw()
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139
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140 def redraw(self):
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141 for widget in self.widgets[:]:
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142 self.remove(widget)
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143 self.layout._widgets = []
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144 self.layout.init()
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145
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146 space = self.style.font.size(" ")
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147
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148 if self.cur_page == 0:
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149 full_text = "Page %d / %d\n\n" % (self.cur_page + 1, len(HELP)) + \
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150 HELP[self.cur_page] + '\n\n' + LEVEL_TEXT % {
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151 'name' : self.level.level_name,
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152 'goal' : self.level.goal
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153 }
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154 else:
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155 full_text = "Page %d / %d\n\n" % (self.cur_page + 1, len(HELP)) + \
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156 HELP[self.cur_page]
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157
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158 for paragraph in full_text.split('\n\n'):
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159 self.block(align=-1)
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160 for word in paragraph.split():
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161 if word == "\\":
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162 self.br(space[1])
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163 else:
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164 self.add(gui.Label(word))
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165 self.space(space)
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166 self.br(space[1])
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167 _width, _height = self.resize()
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168 self.br(440 - _height)
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169 self.add(self.prev_button, align=-1)
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170 self.add(self.next_button, align=1)
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171 self.add(self.done_button, align=0)