1 | using System; |
---|
2 | using System.Collections.Generic; |
---|
3 | using Drawstuff.NET; |
---|
4 | |
---|
5 | namespace Ode.NET |
---|
6 | { |
---|
7 | #if dDOUBLE |
---|
8 | using dReal = System.Double; |
---|
9 | #else |
---|
10 | using dReal = System.Single; |
---|
11 | #endif |
---|
12 | |
---|
13 | public class TestBoxStack |
---|
14 | { |
---|
15 | #region Description of convex shape |
---|
16 | |
---|
17 | static dReal[] planes = |
---|
18 | { |
---|
19 | 1.0f, 0.0f, 0.0f, 0.25f, |
---|
20 | 0.0f, 1.0f, 0.0f, 0.25f, |
---|
21 | 0.0f, 0.0f, 1.0f, 0.25f, |
---|
22 | 0.0f, 0.0f, -1.0f, 0.25f, |
---|
23 | 0.0f, -1.0f, 0.0f, 0.25f, |
---|
24 | -1.0f, 0.0f , 0.0f, 0.25f |
---|
25 | }; |
---|
26 | |
---|
27 | static dReal[] points = |
---|
28 | { |
---|
29 | 0.25f, 0.25f, 0.25f, |
---|
30 | -0.25f, 0.25f, 0.25f, |
---|
31 | 0.25f, -0.25f, 0.25f, |
---|
32 | -0.25f, -0.25f, 0.25f, |
---|
33 | 0.25f, 0.25f, -0.25f, |
---|
34 | -0.25f,0.25f,-0.25f, |
---|
35 | 0.25f,-0.25f,-0.25f, |
---|
36 | -0.25f,-0.25f,-0.25f, |
---|
37 | }; |
---|
38 | |
---|
39 | static int[] polygons = |
---|
40 | { |
---|
41 | 4, 0, 2, 6, 4, |
---|
42 | 4, 1, 0, 4, 5, |
---|
43 | 4, 0, 1, 3, 2, |
---|
44 | 4, 3, 1, 5, 7, |
---|
45 | 4, 2, 3, 7, 6, |
---|
46 | 4, 5, 4, 6, 7, |
---|
47 | }; |
---|
48 | |
---|
49 | #endregion |
---|
50 | |
---|
51 | const int NUM = 100; |
---|
52 | const float DENSITY = 5.0f; |
---|
53 | const int MAX_CONTACTS = 8; |
---|
54 | |
---|
55 | static IntPtr world; |
---|
56 | static IntPtr space; |
---|
57 | static IntPtr contactgroup; |
---|
58 | |
---|
59 | static Queue<IntPtr> obj = new Queue<IntPtr>(); |
---|
60 | |
---|
61 | static d.Vector3 xyz = new d.Vector3(2.1640f, -1.3079f, 1.7600f); |
---|
62 | static d.Vector3 hpr = new d.Vector3(125.5000f, -17.0000f, 0.0000f); |
---|
63 | |
---|
64 | static d.NearCallback nearCallback = near; |
---|
65 | static d.ContactGeom[] contacts = new d.ContactGeom[MAX_CONTACTS]; |
---|
66 | static d.Contact contact; |
---|
67 | |
---|
68 | |
---|
69 | // Called when window is opened - sets up viewpoint and prints usage |
---|
70 | static void start(int unused) |
---|
71 | { |
---|
72 | ds.SetViewpoint(ref xyz, ref hpr); |
---|
73 | Console.WriteLine("To drop another object, press:"); |
---|
74 | Console.WriteLine(" b for box."); |
---|
75 | Console.WriteLine(" s for sphere."); |
---|
76 | Console.WriteLine(" c for capsule."); |
---|
77 | Console.WriteLine(" y for cylinder."); |
---|
78 | Console.WriteLine(" v for a convex object."); |
---|
79 | Console.WriteLine(" x for a composite object."); |
---|
80 | Console.WriteLine("To select an object, press space."); |
---|
81 | Console.WriteLine("To disable the selected object, press d."); |
---|
82 | Console.WriteLine("To enable the selected object, press e."); |
---|
83 | Console.WriteLine("To toggle showing the geom AABBs, press a."); |
---|
84 | Console.WriteLine("To toggle showing the contact points, press t."); |
---|
85 | Console.WriteLine("To toggle dropping from random position/orientation, press r."); |
---|
86 | Console.WriteLine("To save the current state to 'state.dif', press 1."); |
---|
87 | } |
---|
88 | |
---|
89 | |
---|
90 | // Near callback - creates contact joints |
---|
91 | static void near(IntPtr space, IntPtr g1, IntPtr g2) |
---|
92 | { |
---|
93 | IntPtr b1 = d.GeomGetBody(g1); |
---|
94 | IntPtr b2 = d.GeomGetBody(g2); |
---|
95 | if (b1 != IntPtr.Zero && b2 != IntPtr.Zero && d.AreConnectedExcluding(b1, b2, d.JointType.Contact)) |
---|
96 | return; |
---|
97 | |
---|
98 | int count = d.Collide(g1, g2, MAX_CONTACTS, contacts, d.ContactGeom.SizeOf); |
---|
99 | for (int i = 0; i < count; ++i) |
---|
100 | { |
---|
101 | contact.geom = contacts[i]; |
---|
102 | IntPtr joint = d.JointCreateContact(world, contactgroup, ref contact); |
---|
103 | d.JointAttach(joint, b1, b2); |
---|
104 | } |
---|
105 | } |
---|
106 | |
---|
107 | |
---|
108 | // Adds a new object to the scene - attaches a body to the geom and |
---|
109 | // sets the initial position and orientation |
---|
110 | static void addObject(IntPtr geom, d.Mass mass) |
---|
111 | { |
---|
112 | // Create a body for this object |
---|
113 | IntPtr body = d.BodyCreate(world); |
---|
114 | d.GeomSetBody(geom, body); |
---|
115 | d.BodySetMass(body, ref mass); |
---|
116 | obj.Enqueue(geom); |
---|
117 | |
---|
118 | // Set the position of the new object |
---|
119 | d.Matrix3 R; |
---|
120 | d.BodySetPosition(body, d.RandReal() * 2 - 1, d.RandReal() * 2 - 1, d.RandReal() + 2); |
---|
121 | d.RFromAxisAndAngle(out R, d.RandReal() * 2 - 1, d.RandReal() * 2 - 1, d.RandReal() * 2 - 1, d.RandReal() * 10 - 5); |
---|
122 | d.BodySetRotation(body, ref R); |
---|
123 | |
---|
124 | // Cap the total number of objects |
---|
125 | if (obj.Count > NUM) |
---|
126 | { |
---|
127 | geom = obj.Dequeue(); |
---|
128 | body = d.GeomGetBody(geom); |
---|
129 | d.BodyDestroy(body); |
---|
130 | d.GeomDestroy(geom); |
---|
131 | } |
---|
132 | } |
---|
133 | |
---|
134 | |
---|
135 | // Keyboard callback |
---|
136 | static void command(int cmd) |
---|
137 | { |
---|
138 | IntPtr geom; |
---|
139 | d.Mass mass; |
---|
140 | d.Vector3 sides = new d.Vector3(d.RandReal() * 0.5f + 0.1f, d.RandReal() * 0.5f + 0.1f, d.RandReal() * 0.5f + 0.1f); |
---|
141 | |
---|
142 | Char ch = Char.ToLower((Char)cmd); |
---|
143 | switch ((Char)ch) |
---|
144 | { |
---|
145 | case 'b': |
---|
146 | d.MassSetBox(out mass, DENSITY, sides.X, sides.Y, sides.Z); |
---|
147 | geom = d.CreateBox(space, sides.X, sides.Y, sides.Z); |
---|
148 | addObject(geom, mass); |
---|
149 | break; |
---|
150 | |
---|
151 | case 'c': |
---|
152 | sides.X *= 0.5f; |
---|
153 | d.MassSetCapsule(out mass, DENSITY, 3, sides.X, sides.Y); |
---|
154 | geom = d.CreateCapsule(space, sides.X, sides.Y); |
---|
155 | addObject(geom, mass); |
---|
156 | break; |
---|
157 | |
---|
158 | case 'v': |
---|
159 | d.MassSetBox(out mass, DENSITY, 0.25f, 0.25f, 0.25f); |
---|
160 | geom = d.CreateConvex(space, planes, planes.Length / 4, points, points.Length / 3, polygons); |
---|
161 | addObject(geom, mass); |
---|
162 | break; |
---|
163 | } |
---|
164 | } |
---|
165 | |
---|
166 | |
---|
167 | // Draw an object in the scene |
---|
168 | static void drawGeom(IntPtr geom) |
---|
169 | { |
---|
170 | IntPtr body = d.GeomGetBody(geom); |
---|
171 | |
---|
172 | d.Vector3 pos; |
---|
173 | d.BodyCopyPosition(body, out pos); |
---|
174 | |
---|
175 | d.Matrix3 R; |
---|
176 | d.BodyCopyRotation(body, out R); |
---|
177 | |
---|
178 | d.GeomClassID type = d.GeomGetClass(geom); |
---|
179 | switch (type) |
---|
180 | { |
---|
181 | case d.GeomClassID.BoxClass: |
---|
182 | d.Vector3 sides; |
---|
183 | d.GeomBoxGetLengths(geom, out sides); |
---|
184 | ds.DrawBox(ref pos, ref R, ref sides); |
---|
185 | break; |
---|
186 | case d.GeomClassID.CapsuleClass: |
---|
187 | dReal radius, length; |
---|
188 | d.GeomCapsuleGetParams(geom, out radius, out length); |
---|
189 | ds.DrawCapsule(ref pos, ref R, length, radius); |
---|
190 | break; |
---|
191 | case d.GeomClassID.ConvexClass: |
---|
192 | ds.DrawConvex(ref pos, ref R, planes, planes.Length / 4, points, points.Length / 3, polygons); |
---|
193 | break; |
---|
194 | } |
---|
195 | } |
---|
196 | |
---|
197 | |
---|
198 | // Called once per frame; updates the scene |
---|
199 | static void step(int pause) |
---|
200 | { |
---|
201 | d.SpaceCollide(space, IntPtr.Zero, nearCallback); |
---|
202 | if (pause == 0) |
---|
203 | d.WorldQuickStep(world, 0.02f); |
---|
204 | d.JointGroupEmpty(contactgroup); |
---|
205 | |
---|
206 | ds.SetColor(1.0f, 1.0f, 0.0f); |
---|
207 | ds.SetTexture(ds.Texture.Wood); |
---|
208 | |
---|
209 | foreach (IntPtr geom in obj) |
---|
210 | { |
---|
211 | drawGeom(geom); |
---|
212 | } |
---|
213 | } |
---|
214 | |
---|
215 | |
---|
216 | static void Main(string[] args) |
---|
217 | { |
---|
218 | // Setup pointers to drawstuff callback functions |
---|
219 | ds.Functions fn; |
---|
220 | fn.version = ds.VERSION; |
---|
221 | fn.start = new ds.CallbackFunction(start); |
---|
222 | fn.step = new ds.CallbackFunction(step); |
---|
223 | fn.command = new ds.CallbackFunction(command); |
---|
224 | fn.stop = null; |
---|
225 | fn.path_to_textures = "../../../../drawstuff/textures"; |
---|
226 | if (args.Length > 0) |
---|
227 | { |
---|
228 | fn.path_to_textures = args[0]; |
---|
229 | } |
---|
230 | |
---|
231 | // Set up contact response parameters |
---|
232 | contact.surface.mode = d.ContactFlags.Bounce | d.ContactFlags.SoftCFM; |
---|
233 | contact.surface.mu = d.Infinity; |
---|
234 | contact.surface.mu2 = 0.0f; |
---|
235 | contact.surface.bounce = 0.1f; |
---|
236 | contact.surface.bounce_vel = 0.1f; |
---|
237 | contact.surface.soft_cfm = 0.01f; |
---|
238 | |
---|
239 | // Initialize the scene |
---|
240 | world = d.WorldCreate(); |
---|
241 | space = d.HashSpaceCreate(IntPtr.Zero); |
---|
242 | contactgroup = d.JointGroupCreate(0); |
---|
243 | d.WorldSetGravity(world, 0.0f, 0.0f, -0.5f); |
---|
244 | d.WorldSetCFM(world, 1e-5f); |
---|
245 | d.WorldSetAutoDisableFlag(world, true); |
---|
246 | d.WorldSetContactMaxCorrectingVel(world, 0.1f); |
---|
247 | d.WorldSetContactSurfaceLayer(world, 0.001f); |
---|
248 | d.CreatePlane(space, 0, 0, 1, 0); |
---|
249 | |
---|
250 | // Run the scene |
---|
251 | ds.SimulationLoop(args.Length, args, 352, 288, ref fn); |
---|
252 | |
---|
253 | // Clean up |
---|
254 | d.JointGroupDestroy(contactgroup); |
---|
255 | d.SpaceDestroy(space); |
---|
256 | d.WorldDestroy(world); |
---|
257 | d.CloseODE(); |
---|
258 | } |
---|
259 | } |
---|
260 | } |
---|