Added the main asteroid belt.

punyverse/assets/models/asteroids/mainbelt.mtl

@@ -0,0 +1,11 @@
+# Blender MTL File: 'mainbeltastroid.blend'
+# Material Count: 1
+
+newmtl Material
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.254837 0.254837 0.254837
+Ks 0.159273 0.159273 0.159273
+Ni 1.000000
+d 1.000000
+illum 2

punyverse/assets/models/asteroids/mainbelt.obj

@@ -0,0 +1,188 @@
+# Blender v2.68 (sub 0) OBJ File: 'mainbeltastroid.blend'
+# www.blender.org
+mtllib mainbelt.mtl
+g Cube
+v 0.290193 -0.983926 0.474791
+v 0.437387 -1.185402 -0.058906
+v -0.278179 0.795311 -0.169923
+v -0.176207 0.961698 -0.576060
+v -0.749408 0.677473 -0.403865
+v -0.843249 1.101376 0.368964
+v 0.921024 0.543359 -0.373421
+v 1.228522 0.313481 -0.796992
+v 1.413710 0.491171 0.016800
+v 0.824964 -0.186862 -0.430968
+v 0.169830 0.339481 0.955115
+v 0.788238 0.224175 0.864338
+v 0.579672 -0.319492 0.985489
+v -0.850858 0.163566 0.318706
+v 0.631733 -0.588108 -0.649624
+v -0.094402 -0.322324 -1.249913
+v -0.249124 -1.065447 -0.286061
+v -0.020992 -0.954752 -0.765611
+v -0.632247 -1.107953 -0.512581
+v 0.124837 1.315392 0.134372
+v 0.577110 0.882123 0.035559
+v 0.730517 0.855449 0.648931
+v -0.248585 0.742805 0.757662
+v 0.897809 -0.004470 0.247323
+v 0.947047 -0.715323 0.120538
+v 0.998978 -0.476379 0.574922
+v -0.353813 -0.204947 1.105379
+v -0.981584 -0.532307 0.798081
+v -0.690767 0.347252 0.944776
+v -1.260799 -0.267750 -0.576518
+v -0.903255 -0.554117 -0.072930
+v -0.873585 -0.350903 -0.897106
+v -1.083754 0.162032 -0.623495
+v -0.679472 0.071680 -0.834524
+v -0.150468 0.605678 -1.224164
+v -0.292701 -0.962443 0.791399
+v 0.496173 1.124109 -0.437672
+v 0.278706 -0.267373 1.389388
+vn 0.529098 -0.735317 0.423514
+vn 0.695321 -0.606928 -0.384925
+vn 0.383061 -0.662029 0.644190
+vn 0.511064 -0.783451 0.353579
+vn -0.138461 0.908731 -0.393746
+vn 0.593966 0.354629 -0.722110
+vn -0.359523 0.891682 0.275039
+vn 0.500172 0.865296 0.033023
+vn 0.619478 -0.019645 -0.784768
+vn 0.619649 0.775456 -0.121254
+vn 0.983189 0.132696 0.125425
+vn 0.171122 0.151303 0.973563
+vn 0.197398 0.332706 0.922139
+vn -0.945107 0.286186 0.157704
+vn -0.676128 0.735533 -0.042912
+vn 0.472294 -0.437683 -0.765096
+vn 0.304249 0.044783 -0.951539
+vn 0.283559 0.913995 -0.290184
+vn 0.830567 -0.515214 0.211455
+vn -0.311526 -0.600264 -0.736637
+vn 0.483338 -0.690051 -0.538714
+vn -0.198815 -0.976318 0.085294
+vn -0.529631 -0.847817 -0.026400
+vn -0.165780 0.630247 0.758489
+vn 0.699114 0.677982 0.227114
+vn 0.259894 0.628514 0.733093
+vn 0.677448 -0.097416 0.729091
+vn 0.987177 0.091683 -0.130671
+vn 0.891772 -0.211464 -0.400032
+vn -0.233827 -0.388331 0.891361
+vn -0.437396 -0.005360 0.899253
+vn 0.072347 -0.376917 0.923417
+vn -0.408216 0.016368 0.912739
+vn -0.926227 -0.356903 -0.121344
+vn -0.988224 0.122316 -0.091933
+vn -0.501469 0.749738 -0.431766
+vn -0.483647 -0.150069 -0.862302
+vn -0.612900 0.611035 -0.500988
+vn -0.774342 0.425106 -0.468699
+vn 0.338886 -0.661704 0.668808
+vn 0.178682 -0.903205 0.390248
+vn -0.801728 0.596145 0.042935
+vn -0.110776 0.869208 -0.481877
+vn -0.805509 0.589632 0.059074
+vn 0.018409 0.877560 -0.479114
+vn 0.759682 -0.149805 0.632805
+vn 0.713637 -0.691918 0.109416
+vn 0.786427 0.594041 0.169258
+vn 0.282085 0.931005 -0.231641
+vn 0.583533 -0.247678 0.773398
+vn 0.732741 0.478045 0.484317
+vn -0.004524 0.581410 0.813598
+vn -0.006905 0.433901 0.900934
+vn -0.991584 0.014936 -0.128596
+vn -0.563344 -0.039656 0.825270
+vn -0.858666 0.466868 0.211488
+vn 0.423569 -0.519252 -0.742271
+vn 0.187865 -0.972846 -0.135191
+vn -0.222629 -0.496977 -0.838719
+vn -0.081738 -0.961894 -0.260919
+vn 0.052827 -0.993867 0.097149
+vn -0.766365 -0.585261 0.264864
+vn 0.669742 0.730079 -0.135756
+vn 0.981787 0.097127 -0.163283
+vn 0.963043 0.258645 0.075174
+vn -0.116467 -0.992337 0.041265
+vn -0.385386 -0.892604 -0.233959
+vn -0.546778 0.362906 -0.754541
+vn -0.849251 -0.203792 0.487075
+vn -0.445795 0.086256 -0.890970
+vn -0.893227 0.392020 0.220152
+vn -0.412489 0.000355 -0.910963
+usemtl Material
+s off
+f 1//1 2//1 25//1
+f 2//2 15//2 25//2
+f 1//3 26//3 13//3
+f 1//4 25//4 26//4
+f 20//5 37//5 4//5
+f 37//6 7//6 35//6
+f 4//7 5//7 3//7
+f 3//8 6//8 23//8
+f 7//9 9//9 10//9
+f 7//10 21//10 22//10
+f 22//11 12//11 24//11
+f 11//12 13//12 12//12
+f 11//13 12//13 22//13
+f 14//14 28//14 29//14
+f 14//15 29//15 23//15
+f 16//16 8//16 15//16
+f 16//17 35//17 8//17
+f 35//18 7//18 8//18
+f 15//19 8//19 10//19
+f 16//20 18//20 32//20
+f 18//21 15//21 2//21
+f 17//22 2//22 36//22
+f 36//23 28//23 31//23
+f 20//24 11//24 22//24
+f 21//25 37//25 20//25
+f 20//26 23//26 11//26
+f 26//27 12//27 13//27
+f 24//28 25//28 10//28
+f 25//29 15//29 10//29
+f 27//30 28//30 36//30
+f 27//31 29//31 28//31
+f 36//32 13//32 27//32
+f 27//33 38//33 29//33
+f 32//34 19//34 31//34
+f 31//35 28//35 14//35
+f 35//36 5//36 4//36
+f 34//37 33//37 35//37
+f 35//38 33//38 5//38
+f 34//39 35//39 32//39
+f 36//40 1//40 13//40
+f 2//41 1//41 36//41
+f 3//42 20//42 4//42
+f 4//43 37//43 35//43
+f 20//44 3//44 23//44
+f 3//45 5//45 6//45
+f 8//46 7//46 10//46
+f 9//47 24//47 10//47
+f 21//48 7//48 37//48
+f 9//49 7//49 22//49
+f 9//50 22//50 24//50
+f 11//51 38//51 13//51
+f 38//52 11//52 29//52
+f 11//53 23//53 29//53
+f 5//54 14//54 6//54
+f 6//55 14//55 23//55
+f 14//56 5//56 33//56
+f 15//57 18//57 16//57
+f 17//58 19//58 18//58
+f 18//59 19//59 32//59
+f 17//60 18//60 2//60
+f 19//61 17//61 36//61
+f 19//62 36//62 31//62
+f 21//63 20//63 22//63
+f 25//64 24//64 26//64
+f 26//65 24//65 12//65
+f 38//66 27//66 13//66
+f 31//67 30//67 32//67
+f 30//68 34//68 32//68
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+f 30//70 33//70 34//70
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+f 35//72 16//72 32//72

punyverse/entity.py

@@ -28,6 +28,18 @@ class Asteroid(Entity):
         self.rotation = rx + 1, ry + 1, rz + 1
 
 
+class Belt(Entity):
+    def __init__(self, *args, **kwargs):
+        self.rotation_angle = kwargs.pop('rotation_angle', 5)
+        self.world = kwargs.pop('world')
+        super(Belt, self).__init__(*args, **kwargs)
+
+    def update(self):
+        super(Belt, self).update()
+        pitch, yaw, roll = self.rotation
+        self.rotation = pitch, self.world.tick * self.rotation_angle % 360, roll
+
+
 class Body(Entity):
     def __init__(self, *args, **kwargs):
         self.rotation_angle = kwargs.pop('rotation_angle', 5)

punyverse/game.py

@@ -56,9 +56,12 @@ class Applet(pyglet.window.Window):
 
     def __init__(self, *args, **kwargs):
         super(Applet, self).__init__(*args, **kwargs)
+        texture.init()
+
         l = clock()
         self.fps = 0
         self.world = load_world("world.json")
+        print 'Initializing game...'
         self.speed = INITIAL_SPEED
         self.keys = set()
         self.info = True
@@ -99,7 +102,6 @@ class Applet(pyglet.window.Window):
         glClearColor(0, 0, 0, 1)
         glClearDepth(1.0)
 
-        texture.init()
         if not texture.badcard:
             glEnable(GL_BLEND)
             glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
@@ -130,16 +132,19 @@ class Applet(pyglet.window.Window):
         glLightfv(GL_LIGHT1, GL_DIFFUSE, fv4(.5, .5, .5, 1))
         glLightfv(GL_LIGHT1, GL_SPECULAR, fv4(1, 1, 1, 1))
 
+        print 'Loading asteroids...'
         self.asteroid_ids = [model_list(load_model(r"asteroids\01.obj"), 5, 5, 5, (0, 0, 0)),
                              model_list(load_model(r"asteroids\02.obj"), 5, 5, 5, (0, 0, 0)),
                              model_list(load_model(r"asteroids\03.obj"), 5, 5, 5, (0, 0, 0)),
                              model_list(load_model(r"asteroids\04.obj"), 5, 5, 5, (0, 0, 0)),
-                             model_list(load_model(r"asteroids\05.obj"), 5, 5, 5, (0, 0, 0))]
+                             model_list(load_model(r"asteroids\05.obj"), 5, 5, 5, (0, 0, 0)),
+                             ]
 
         c = self.cam
         c.x, c.y, c.z = self.world.start
         c.pitch, c.yaw, c.roll = self.world.direction
 
+        print 'Updating entities...'
         for entity in self.world.tracker:
             entity.update()
 

punyverse/glgeom.py

@@ -1,9 +1,10 @@
 from math import *
 from pyglet.gl import *
+from random import random, uniform
 
 TWOPI = pi * 2
 
-__all__ = ['compile', 'ortho', 'frustrum', 'crosshair', 'circle', 'disk', 'sphere', 'colourball', 'torus']
+__all__ = ['compile', 'ortho', 'frustrum', 'crosshair', 'circle', 'disk', 'sphere', 'colourball', 'torus', 'belt']
 
 
 def compile(pointer, *args, **kwargs):
@@ -122,6 +123,25 @@ def colourball(r, lats, longs, colour, fv4=GLfloat * 4):
     gluDeleteQuadric(sphere)
 
 
+def belt(radius, cross, object, count):
+    for i in xrange(count):
+        theta = TWOPI * random()
+        x, y, z = cos(theta) * radius, 0, sin(theta) * radius
+        # Pretend to move horizontally around the x-axis by delta
+        # then I multiply it by a rotation matrix about angle theta
+        # the z-axis need not to be multiplied by the matrix, as it's 0
+        # Do note the rotation is counter clockwise
+        delta = cross * uniform(-1, 1)
+        x += cos(theta) * delta
+        z += sin(theta) * delta
+        y += cross * uniform(-1, 1)
+
+        glPushMatrix()
+        glTranslatef(x, y, z)
+        glCallList(object)
+        glPopMatrix()
+
+
 try:
     from _glgeom import torus
 except ImportError:

punyverse/world.json

@@ -278,6 +278,16 @@
       "background": true
     }
   },
+  "belts": {
+    "main": {
+      "model": "asteroids/mainbelt.obj",
+      "radius": "2.362 * AU",
+      "cross": 1000,
+      "scale": 30,
+      "count": "TEXTURE",
+      "rotation": 114536500
+    }
+  },
   "start": {
     "z": "AU - 400",
     "yaw": 180

punyverse/world.py

@@ -17,6 +17,7 @@ except ImportError:
 from punyverse.glgeom import *
 from punyverse.entity import *
 from punyverse.texture import *
+from punyverse import texture
 
 from math import pi, sqrt
 
@@ -59,7 +60,7 @@ def load_world(file):
 
         world = World()
         au = root.get('au', 2000)
-        e = lambda x: eval(str(x), {'__builtins__': None}, {'AU': au})
+        e = lambda x: eval(str(x), {'__builtins__': None}, {'AU': au, 'TEXTURE': texture.max_texture})
         tick = root.get('tick', 4320)  # How many second is a tick?
         length = root.get('length', 4320)  # Satellite distance is in km, divide by this gets in world units
         world.tick_length = tick
@@ -171,6 +172,28 @@ def load_world(file):
             print "Loading %s." % planet
             body(planet, info)
 
+        for name, info in root['belts'].iteritems():
+            print 'Loading %s.' % name
+            x = e(info.get('x', 0))
+            y = e(info.get('y', 0))
+            z = e(info.get('z', 0))
+            radius = e(info.get('radius', 0))
+            cross = e(info.get('cross', 0))
+            count = int(e(info.get('count', 0)))
+            scale = info.get('scale', 1)
+            longitude = info.get('longitude', 0)
+            inclination = info.get('inclination', 0)
+            argument = info.get('argument', 0)
+            rotation = info.get('period', 31536000)
+            theta = 360 / (rotation + .0) if rotation else 0
+
+            object_id = model_list(load_model(info['model']), info.get('sx', scale), info.get('sy', scale),
+                                   info.get('sz', scale), (0, 0, 0))
+
+            world.tracker.append(Belt(compile(belt, radius, cross, object_id, count),
+                                      (x, y, z), (inclination, longitude, argument),
+                                      rotation_angle=theta, world=world))
+
         return world