Mercurial > traipse_dev

annotate orpg/map/_fog.py @ 20:072ffc1d466f traipse_dev

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2nd attempt. Still untested.
author sirebral
date Sat, 25 Jul 2009 19:23:25 -0500
parents 4385a7d0efd1
children
rev   line source
0
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1 from math import sqrt
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2
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3 import wx
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4
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5 import orpg.dirpath
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6 from orpg.orpgCore import *
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7
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8 from _object import MapObject
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9
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10 class FogLayer(MapObject):
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11 def __init__(self, canvas):
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12 MapObject.__init__(self, canvas=canvas)
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13
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14 def Draw(self, dc):
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15 path = dc.CreatePath()
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16 r, g, b = self.RGBHex.rgb_tuple(self.canvas.fogColor)
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17 if self.canvas.toolWnd.gmToolBar.IsShown():
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18 brush = wx.Brush(wx.Color(r, g, b, 128))
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19 else:
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20 brush = wx.Brush(wx.Color(r, g, b, 255))
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21 dc.SetBrush(brush)
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22
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23 self.region = wx.Region(0, 0, self.canvas.size[0]+2, self.canvas.size[1]+2)
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24
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25 points = []
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26 lp = 's'
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27 for point in self.canvas.fogRegion:
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28 if point == 's' or point == 'h':
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29 if lp == 's' and len(points) > 0:
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30 self.region.XorRegion(wx.RegionFromPoints(points))
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31 self.region.SubtractRegion(wx.RegionFromPoints(points))
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32 elif len(points) > 0:
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33 self.region.UnionRegion(wx.RegionFromPoints(points))
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34 lp = point
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35 points = []
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36 else:
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37 points.append((point.x, point.y))
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38
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39 if len(points) > 0:
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40 if lp == 's':
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41 self.region.XorRegion(wx.RegionFromPoints(points))
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42 self.region.SubtractRegion(wx.RegionFromPoints(points))
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43 else:
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44 self.region.UnionRegion(wx.RegionFromPoints(points))
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45
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46 dc.ClipRegion(self.region)
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47
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48 dc.DrawRectangle(0, 0, self.canvas.size[0]+2, self.canvas.size[1]+2)
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49
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50 dc.SetBrush(wx.NullBrush)
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51
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52 def OnLeftDown(self, pos):
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53 self.start = pos
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54 self.lastPoint = pos
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55 if self.canvas.toolWnd.currentFog == 'Show':
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56 self.canvas.fogRegion.append('s')
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57 else:
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58 self.canvas.fogRegion.append('h')
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59 self.canvas.fogRegion.append(pos)
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60
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61 def OnMotion(self, pos):
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62 cdc = wx.ClientDC(self.canvas)
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63 self.canvas.PrepareDC(cdc)
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64
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65 dc = wx.GraphicsContext.Create(cdc)
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66 dc.Scale(self.canvas.zoomScale, self.canvas.zoomScale)
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67
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68 dc.SetPen(wx.WHITE_PEN)
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69
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70 path = dc.CreatePath()
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71
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72 xd = (self.lastPoint.x-pos.x)*(self.lastPoint.x-pos.x)
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73 yd = (self.lastPoint.y-pos.y)*(self.lastPoint.y-pos.y)
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74 distance = sqrt(xd+yd)
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75
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76 if distance > 5:
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77 path.MoveToPoint(self.lastPoint.x, self.lastPoint.y)
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78 path.AddLineToPoint(pos.x, pos.y)
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79
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80 self.canvas.fogRegion.append(pos)
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81 self.lastPoint = pos
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82
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83 path.CloseSubpath()
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84 dc.StrokePath(path)
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85
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86 dc.SetPen(wx.NullPen)
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87
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88 def OnLeftUp(self, pos):
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89 self.canvas.fogRegion.append(pos)
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90 self.canvas.fogRegion.append(self.start)
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91 self.canvas.UpdateMap()
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92