Mercurial > nagslang

annotate tools/area_editor.py @ 109:817d4a62135c

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Partially albowify the level editor
author Neil Muller <drnlmuller@gmail.com>
date Mon, 02 Sep 2013 14:09:39 +0200
parents dde91f8c4335
children 6415db718b36
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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
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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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20 from albow.root import RootWidget
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21 from albow.widget import Widget
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22 from albow.controls import Button
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23
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24 sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
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109
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26 from nagslang.constants import SCREEN
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27 from nagslang.level import Level, POLY_COLORS
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30 # layout constants
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31 MENU_WIDTH = 200
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32 MENU_BUTTON_HEIGHT = 35
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34
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35 class EditorLevel(Level):
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36
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37 def __init__(self, name, x=800, y=600):
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38 super(EditorLevel, self).__init__(name)
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39 self.x = x
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40 self.y = y
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41
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42 def round_point(self, pos):
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43 return (10 * (pos[0] // 10), 10 * (pos[1] // 10))
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44
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45 def point_to_pymunk(self, pos):
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46 # inverse of point_to_pygame
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47 # (this is also the same as point_to_pygame, but a additional
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48 # function for sanity later in pyweek).
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49 return (pos[0], self.y - pos[1])
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50
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51 def add_point(self, poly_index, pos):
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52 self.polygons.setdefault(poly_index, [])
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53 if not self.polygons[poly_index]:
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54 point = self.point_to_pymunk(self.round_point(pos))
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55 self.polygons[poly_index].append(point)
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56 else:
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57 add_pos = self.fix_angle(poly_index, pos)
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58 self.polygons[poly_index].append(add_pos)
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59
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60 def fix_angle(self, index, pos):
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61 # Last point
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62 point1 = self.point_to_pygame(self.polygons[index][-1])
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63 pos = self.round_point(pos)
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64 # We want the line (point1 to pos) to be an angle of
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65 # 0, 45, 90, 135, 180, 225, 270, 305
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66 # However, we only need to consider half the circle
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67 # This is a hack to approximate the right thing
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68 pos0 = (pos[0], point1[1])
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69 pos90 = (point1[0], pos[1])
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70 dist = max(abs(point1[0] - pos[0]), abs(point1[1] - pos[1]))
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71 pos45 = (point1[0] + dist, point1[1] + dist)
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72 pos135 = (point1[0] + dist, point1[1] - dist)
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73 pos225 = (point1[0] - dist, point1[1] - dist)
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74 pos305 = (point1[0] - dist, point1[1] + dist)
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75 min_dist = 9999999
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76 new_pos = point1
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77 for cand in [pos0, pos90, pos45, pos135, pos225, pos305]:
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78 dist = (pos[0] - cand[0]) ** 2 + (pos[1] - cand[1]) ** 2
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79 if dist < min_dist:
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80 new_pos = cand
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81 min_dist = dist
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82 return self.point_to_pymunk(new_pos)
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83
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84 def delete_point(self, index):
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85 if index in self.polygons and len(self.polygons[index]) > 0:
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86 self.polygons[index].pop()
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87
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88 def draw(self, surface, topleft, mouse_pos, mouse_poly, filled):
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89 self._draw_background(True)
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90 # Draw polygons as needed for the editor
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91 if filled:
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92 self._draw_exterior(True)
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93 for index, polygon in self.polygons.items():
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94 color = POLY_COLORS[index]
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95 if len(polygon) > 1:
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96 pointlist = [self.point_to_pygame(p) for p in polygon]
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97 pygame.draw.lines(self._surface, color, False, pointlist, 2)
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98 if index == mouse_poly and mouse_pos:
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99 endpoint = self.fix_angle(index, mouse_pos)
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100 pygame.draw.line(self._surface, color,
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101 self.point_to_pygame(polygon[-1]),
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102 self.point_to_pygame(endpoint))
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103 surface_area = pygame.rect.Rect(topleft, SCREEN)
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104 surface.blit(self._surface, (0, 0), surface_area)
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105
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106
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107 class LevelWidget(Widget):
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108
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109 def __init__(self, level):
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110 super(LevelWidget, self).__init__(pygame.rect.Rect(0, 0,
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111 SCREEN[0], SCREEN[1]))
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112 self.level = level
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113 self.pos = (0, 0)
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114 self.filled_mode = False
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115 self.mouse_pos = None
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116 self.cur_poly = None
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117
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118 def _level_coordinates(self, pos):
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119 # Move positions to level values
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120 if not pos:
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121 return (0, 0)
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122 return pos[0] + self.pos[0], pos[1] + self.pos[1]
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123
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124 def _move_view(self, offset):
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125 new_pos = [self.pos[0] + offset[0], self.pos[1] + offset[1]]
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126 if new_pos[0] < 0:
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127 new_pos[0] = self.pos[0]
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128 elif new_pos[0] > self.level.x - SCREEN[0]:
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129 new_pos[0] = self.pos[0]
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130 if new_pos[1] < 0:
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131 new_pos[1] = self.pos[1]
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132 elif new_pos[1] > self.level.y - SCREEN[1]:
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133 new_pos[1] = self.pos[1]
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134 self.pos = tuple(new_pos)
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135
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136 def draw(self, surface):
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137 if (self.cur_poly is not None and self.cur_poly in self.level.polygons
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138 and len(self.level.polygons[self.cur_poly])):
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139 # We have an active polygon
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140 mouse_pos = self._level_coordinates(self.mouse_pos)
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141 else:
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142 mouse_pos = None
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143 level.draw(surface, self.pos, mouse_pos, self.cur_poly,
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144 self.filled_mode)
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145
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146 def key_down(self, ev):
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147 if ev.key == pgl.K_LEFT:
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148 self._move_view((-10, 0))
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149 elif ev.key == pgl.K_RIGHT:
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150 self._move_view((10, 0))
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151 elif ev.key == pgl.K_UP:
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152 self._move_view((0, -10))
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153 elif ev.key == pgl.K_DOWN:
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154 self._move_view((0, 10))
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155 elif ev.key == pgl.K_1:
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156 self.cur_poly = 1
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157 self.filled_mode = False
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158 elif ev.key == pgl.K_2:
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159 self.cur_poly = 2
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160 self.filled_mode = False
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161 elif ev.key == pgl.K_3:
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162 self.cur_poly = 3
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163 self.filled_mode = False
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164 elif ev.key == pgl.K_4:
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165 self.cur_poly = 4
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166 self.filled_mode = False
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167 elif ev.key == pgl.K_5:
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168 self.cur_poly = 5
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169 self.filled_mode = False
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170 elif ev.key == pgl.K_6:
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171 self.cur_poly = 6
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172 self.filled_mode = False
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173 elif ev.key == pgl.K_0:
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174 self.cur_poly = None
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175 elif ev.key == pgl.K_d and self.cur_poly:
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176 self.level.delete_point(self.cur_poly)
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177 elif ev.key == pgl.K_s:
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178 level.save()
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179 elif ev.key == pgl.K_f:
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180 if level.all_closed():
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181 self.cur_poly = None
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182 self.filled_mode = True
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183 else:
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184 print 'Not all polygons closed, so not filling'
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185
109
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186 def mouse_move(self, ev):
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187 old_pos = self.mouse_pos
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188 self.mouse_pos = ev.pos
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189 if self.cur_poly and old_pos != self.mouse_pos:
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190 self.invalidate()
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191
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192 def mouse_down(self, ev):
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193 if self.cur_poly:
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194 # Add a point
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195 self.level.add_point(self.cur_poly,
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196 self._level_coordinates(ev.pos))
108
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197
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198
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199 class EditorApp(RootWidget):
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200
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201 def __init__(self, level, surface):
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202 super(EditorApp, self).__init__(surface)
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203 self.level = level
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204 self.level_widget = LevelWidget(self.level)
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205 self.add(self.level_widget)
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206
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207 quit_but = Button('Quit', action=self.quit)
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208 quit_but.rect = pygame.rect.Rect(0, 0, MENU_WIDTH, MENU_BUTTON_HEIGHT)
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209 quit_but.rect.move_ip(SCREEN[0], 25)
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210 self.add(quit_but)
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211
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212 def key_down(self, ev):
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213 if ev.key == pgl.K_ESCAPE:
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214 self.quit()
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215 else:
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216 self.level_widget.key_down(ev)
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217
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218 def mouse_move(self, ev):
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219 self.level_widget.mouse_move(ev)
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220
51
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221
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222 if __name__ == "__main__":
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223 if len(sys.argv) == 2:
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224 level = EditorLevel(sys.argv[1])
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225 level.load()
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226 elif len(sys.argv) == 4:
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227 level = EditorLevel(sys.argv[1], int(sys.argv[2]), int(sys.argv[3]))
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228 else:
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229 print 'Please supply a levelname or levelname and level size'
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230 sys.exit()
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231 pygame.display.init()
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232 pygame.font.init()
108
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233 pygame.display.set_mode((SCREEN[0] + MENU_WIDTH, SCREEN[1]),
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234 pgl.SWSURFACE)
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235 pygame.display.set_caption('Nagslang Area Editor')
108
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236 pygame.key.set_repeat(200, 100)
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237 app = EditorApp(level, pygame.display.get_surface())
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238 app.run()