Mercurial > nagslang

annotate tools/area_editor.py @ 157:76049c9e3d5c

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Scroll wheel
author Stefano Rivera <stefano@rivera.za.net>
date Mon, 02 Sep 2013 23:53:11 +0200
parents 6c5f1a78db75
children dba8bc454a43
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1 #!/usr/bin/env python
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2
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3 # The basic area editor
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4 #
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5 # To edit an existing level, use
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6 # editor levelname
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7 #
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8 # To create a new level:
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9 #
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10 # editor levelname <xsize> <ysiz>
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11 # (size specified in pixels
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12 #
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13
71
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14 import os
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15 import sys
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16
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17 import pygame
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18 import pygame.locals as pgl
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19
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8bbe57d9de0c Rejig sys.path hacking above albow import, so I can hide it in the root of my repo
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20 sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
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21
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22 import pymunk
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23
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24 from albow.root import RootWidget
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25 from albow.widget import Widget
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26 from albow.controls import Button
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27 from albow.dialogs import alert
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28
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29 from nagslang.constants import SCREEN
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30 from nagslang.level import Level, POLY_COLORS
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31
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32
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33 # layout constants
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34 MENU_BUTTON_HEIGHT = 35
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35 MENU_PAD = 6
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36 MENU_HALF_PAD = MENU_PAD // 2
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37 MENU_LEFT = SCREEN[0] + MENU_HALF_PAD
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38 MENU_WIDTH = 200 - MENU_PAD
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39
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40
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41 class EditorLevel(Level):
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42
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43 def __init__(self, name, x=800, y=600):
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44 super(EditorLevel, self).__init__(name)
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45 self.x = x
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46 self.y = y
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47
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48 def round_point(self, pos):
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49 return (10 * (pos[0] // 10), 10 * (pos[1] // 10))
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50
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51 def point_to_pymunk(self, pos):
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52 # inverse of point_to_pygame
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53 # (this is also the same as point_to_pygame, but a additional
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54 # function for sanity later in pyweek).
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55 return (pos[0], self.y - pos[1])
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56
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57 def add_point(self, poly_index, pos):
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58 self.polygons.setdefault(poly_index, [])
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59 if not self.polygons[poly_index]:
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60 point = self.point_to_pymunk(self.round_point(pos))
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61 self.polygons[poly_index].append(point)
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62 else:
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63 add_pos = self.fix_angle(poly_index, pos)
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64 self.polygons[poly_index].append(add_pos)
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65
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66 def fix_angle(self, index, pos):
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67 # Last point
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68 point1 = self.point_to_pygame(self.polygons[index][-1])
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69 pos = self.round_point(pos)
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70 # We want the line (point1 to pos) to be an angle of
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71 # 0, 45, 90, 135, 180, 225, 270, 305
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72 # However, we only need to consider half the circle
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73 # This is a hack to approximate the right thing
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74 pos0 = (pos[0], point1[1])
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75 pos90 = (point1[0], pos[1])
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76 dist = max(abs(point1[0] - pos[0]), abs(point1[1] - pos[1]))
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77 pos45 = (point1[0] + dist, point1[1] + dist)
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78 pos135 = (point1[0] + dist, point1[1] - dist)
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79 pos225 = (point1[0] - dist, point1[1] - dist)
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80 pos305 = (point1[0] - dist, point1[1] + dist)
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81 min_dist = 9999999
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82 new_pos = point1
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83 for cand in [pos0, pos90, pos45, pos135, pos225, pos305]:
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84 dist = (pos[0] - cand[0]) ** 2 + (pos[1] - cand[1]) ** 2
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85 if dist < min_dist:
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86 new_pos = cand
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87 min_dist = dist
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88 return self.point_to_pymunk(new_pos)
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89
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90 def delete_point(self, index):
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91 if index in self.polygons and len(self.polygons[index]) > 0:
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92 self.polygons[index].pop()
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93
135
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94 def close_poly(self, index):
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95 """Attempts to close the current polygon.
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96
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97 We allow a small additional step to close the polygon, but
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98 it's limited as it's a magic point addition"""
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99 if len(self.polygons[index]) < 2:
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100 # Too small
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101 return False
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102 first = self.polygons[index][0]
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103 last = self.polygons[index][-1]
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104 print first, last
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105 print self.fix_angle(index, self.point_to_pygame(first))
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106 if self.fix_angle(index, self.point_to_pygame(first)) == first:
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107 self.add_point(index, self.point_to_pygame(first))
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108 return True
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109 candidates = [(first[0] + 10 * i, first[1]) for
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110 i in (-3, -2, -1, 1, 2, 3)]
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111 candidates.extend([(first[0], first[1] + 10 * i) for
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112 i in (-3, -2, -1, 1, 2, 3)])
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113 candidates.extend([(first[0] + 10 * i, first[1] + 10 * i) for
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114 i in (-3, -2, -1, 1, 2, 3)])
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115 candidates.extend([(first[0] + 10 * i, first[1] - 10 * i) for
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116 i in (-3, -2, -1, 1, 2, 3)])
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117 min_dist = 99999
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118 poss = None
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119 for cand in candidates:
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120 if self.fix_angle(index, self.point_to_pygame(cand)) == cand:
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121 dist = (first[0] - cand[0]) ** 2 + (first[1] - cand[1]) ** 2
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122 if dist < min_dist:
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123 poss = cand
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124 if poss is not None:
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125 self.add_point(index, self.point_to_pygame(poss))
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126 self.add_point(index, self.point_to_pygame(first))
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127 return True
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128 return False
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129
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130 def draw(self, surface, topleft, mouse_pos, mouse_poly, filled):
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131 self._draw_background(True)
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132 # Draw polygons as needed for the editor
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133 if filled:
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134 self._draw_exterior(True)
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135 for index, polygon in self.polygons.items():
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136 color = POLY_COLORS[index]
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137 if len(polygon) > 1:
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138 pointlist = [self.point_to_pygame(p) for p in polygon]
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139 pygame.draw.lines(self._surface, color, False, pointlist, 2)
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140 if index == mouse_poly and mouse_pos:
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141 endpoint = self.fix_angle(index, mouse_pos)
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142 pygame.draw.line(self._surface, color,
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143 self.point_to_pygame(polygon[-1]),
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144 self.point_to_pygame(endpoint))
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145 surface_area = pygame.rect.Rect(topleft, SCREEN)
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146 surface.blit(self._surface, (0, 0), surface_area)
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147
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148
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149 class LevelWidget(Widget):
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150
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151 def __init__(self, level):
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152 super(LevelWidget, self).__init__(pygame.rect.Rect(0, 0,
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153 SCREEN[0], SCREEN[1]))
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154 self.level = level
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155 self.pos = (0, 0)
108
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156 self.filled_mode = False
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157 self.mouse_pos = None
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158 self.cur_poly = None
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159
108
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160 def _level_coordinates(self, pos):
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161 # Move positions to level values
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162 if not pos:
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163 return (0, 0)
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164 return pos[0] + self.pos[0], pos[1] + self.pos[1]
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165
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166 def _move_view(self, offset):
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167 new_pos = [self.pos[0] + offset[0], self.pos[1] + offset[1]]
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168 if new_pos[0] < 0:
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169 new_pos[0] = self.pos[0]
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170 elif new_pos[0] > self.level.x - SCREEN[0]:
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171 new_pos[0] = self.pos[0]
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172 if new_pos[1] < 0:
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173 new_pos[1] = self.pos[1]
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174 elif new_pos[1] > self.level.y - SCREEN[1]:
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175 new_pos[1] = self.pos[1]
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176 self.pos = tuple(new_pos)
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177
108
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178 def draw(self, surface):
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179 if (self.cur_poly is not None and self.cur_poly in self.level.polygons
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180 and len(self.level.polygons[self.cur_poly])):
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181 # We have an active polygon
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182 mouse_pos = self._level_coordinates(self.mouse_pos)
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183 else:
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184 mouse_pos = None
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185 level.draw(surface, self.pos, mouse_pos, self.cur_poly,
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186 self.filled_mode)
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187
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188 def change_poly(self, new_poly):
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189 self.cur_poly = new_poly
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190 if self.cur_poly is not None:
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191 self.filled_mode = False
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192
108
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193 def key_down(self, ev):
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194 if ev.key == pgl.K_LEFT:
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195 self._move_view((-10, 0))
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196 elif ev.key == pgl.K_RIGHT:
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197 self._move_view((10, 0))
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198 elif ev.key == pgl.K_UP:
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199 self._move_view((0, -10))
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200 elif ev.key == pgl.K_DOWN:
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201 self._move_view((0, 10))
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202 elif ev.key in (pgl.K_1, pgl.K_2, pgl.K_3, pgl.K_4, pgl.K_5, pgl.K_6):
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203 self.change_poly(ev.key - pgl.K_0)
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204 elif ev.key == pgl.K_0:
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205 self.change_poly(None)
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206 elif ev.key == pgl.K_d and self.cur_poly:
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207 self.level.delete_point(self.cur_poly)
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208 elif ev.key == pgl.K_f:
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209 self.set_filled()
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210 elif ev.key == pgl.K_c:
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211 self.close_poly()
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212
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213 def set_filled(self):
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214 if level.all_closed():
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215 self.cur_poly = None
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216 self.filled_mode = True
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217 else:
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218 print 'Not all polygons closed, so not filling'
108
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219
109
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220 def mouse_move(self, ev):
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221 old_pos = self.mouse_pos
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222 self.mouse_pos = ev.pos
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223 if self.cur_poly and old_pos != self.mouse_pos:
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224 self.invalidate()
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225
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226 def mouse_down(self, ev):
157
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227 if ev.button == 4: # Scroll up
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228 self._move_view((0, -10))
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229 elif ev.button == 5: # Scroll down
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230 self._move_view((0, 10))
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231 elif ev.button == 6: # Scroll left
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232 self._move_view((-10, 0))
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233 elif ev.button == 7: # Scroll right
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234 self._move_view((10, 0))
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235 elif self.cur_poly:
109
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236 # Add a point
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237 self.level.add_point(self.cur_poly,
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238 self._level_coordinates(ev.pos))
108
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239
135
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240 def close_poly(self):
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241 if self.cur_poly is None:
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242 return
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243 if self.level.close_poly(self.cur_poly):
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244 alert("Successfully closed the polygon")
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245 self.change_poly(None)
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246 else:
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247 alert("Failed to close the polygon")
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248
108
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249
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250 class PolyButton(Button):
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251 """Button for coosing the correct polygon"""
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252
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253 def __init__(self, index, level_widget):
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254 if index is not None:
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255 text = "Draw: %s" % index
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256 else:
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257 text = 'Exit Draw Mode'
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258 super(PolyButton, self).__init__(text)
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259 self.index = index
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260 self.level_widget = level_widget
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261
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262 def action(self):
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263 self.level_widget.change_poly(self.index)
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264
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265
108
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266 class EditorApp(RootWidget):
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267
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268 def __init__(self, level, surface):
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269 super(EditorApp, self).__init__(surface)
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270 self.level = level
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271 self.level_widget = LevelWidget(self.level)
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272 self.add(self.level_widget)
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273
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274 # Add poly buttons
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275 y = 15
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276 for poly in range(1, 7):
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277 but = PolyButton(poly, self.level_widget)
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278 but.rect = pygame.rect.Rect(0, 0, MENU_WIDTH // 2 - MENU_PAD,
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279 MENU_BUTTON_HEIGHT)
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280 if poly % 2:
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281 but.rect.move_ip(MENU_LEFT, y)
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282 else:
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283 but.rect.move_ip(MENU_LEFT + MENU_WIDTH // 2 - MENU_HALF_PAD,
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284 y)
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285 y += MENU_BUTTON_HEIGHT + MENU_PAD
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286 self.add(but)
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287
134
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288 button_rect = pygame.rect.Rect(0, 0, MENU_WIDTH, MENU_BUTTON_HEIGHT)
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289
115
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290 end_poly_but = PolyButton(None, self.level_widget)
134
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291 end_poly_but.rect = button_rect.copy()
115
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292 end_poly_but.rect.move_ip(MENU_LEFT, y)
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293 self.add(end_poly_but)
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294 y += MENU_BUTTON_HEIGHT + MENU_PAD
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295
117
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296 fill_but = Button('Fill exterior', action=self.level_widget.set_filled)
134
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diff changeset
297 fill_but.rect = button_rect.copy()
117
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298 fill_but.rect.move_ip(MENU_LEFT, y)
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299 self.add(fill_but)
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300 y += MENU_BUTTON_HEIGHT + MENU_PAD
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diff changeset
301
116
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diff changeset
302 save_but = Button('Save Level', action=self.save)
134
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303 save_but.rect = button_rect.copy()
116
ecbcf6569fdb add save button
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diff changeset
304 save_but.rect.move_ip(MENU_LEFT, y)
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305 self.add(save_but)
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306 y += MENU_BUTTON_HEIGHT + MENU_PAD
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307
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308 close_poly_but = Button('Close Polygon',
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309 action=self.level_widget.close_poly)
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310 close_poly_but.rect = button_rect.copy()
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311 close_poly_but.rect.move_ip(MENU_LEFT, y)
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312 self.add(close_poly_but)
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313 y += MENU_BUTTON_HEIGHT + MENU_PAD
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314
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315 quit_but = Button('Quit', action=self.quit)
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316 quit_but.rect = button_rect.copy()
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317 quit_but.rect.move_ip(MENU_LEFT, y)
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318 self.add(quit_but)
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319
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320 def key_down(self, ev):
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321 if ev.key == pgl.K_ESCAPE:
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322 self.quit()
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323 elif ev.key == pgl.K_s:
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324 self.save()
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325 else:
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326 self.level_widget.key_down(ev)
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327
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328 def save(self):
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329 closed, messages = self.level.all_closed()
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330 if closed:
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331 self.level.save()
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332 # display success
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333 alert("Level %s saved successfully." % self.level.name)
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334 else:
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335 # display errors
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336 alert("Failed to save level.\n\n%s" % '\n'.join(messages))
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337
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338 def mouse_move(self, ev):
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339 self.level_widget.mouse_move(ev)
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340
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341
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342 if __name__ == "__main__":
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343 if len(sys.argv) == 2:
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344 level = EditorLevel(sys.argv[1])
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6c5f1a78db75 Levels need a pymunk Space to load
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345 level.load(pymunk.Space())
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346 elif len(sys.argv) == 4:
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347 level = EditorLevel(sys.argv[1], int(sys.argv[2]), int(sys.argv[3]))
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348 else:
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349 print 'Please supply a levelname or levelname and level size'
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350 sys.exit()
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351 pygame.display.init()
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352 pygame.font.init()
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353 pygame.display.set_mode((SCREEN[0] + MENU_WIDTH, SCREEN[1]),
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354 pgl.SWSURFACE)
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355 pygame.display.set_caption('Nagslang Area Editor')
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356 pygame.key.set_repeat(200, 100)
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357 app = EditorApp(level, pygame.display.get_surface())
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358 app.run()