0.6 physics error messages
Posted: Wed Nov 04, 2009 1:37 am
Recently I've been noticing a lot of pop up errors from box2d.
I determined that some were related to drawing polygons wrong (as in not listing the coordinates in a counter clockwise fashion).
but I still frequently get this: This is the chunk that its refering to:
I don't really understand whats going on here but my code that causes the problem generates triangles to fill in spaces.
Also on occasion I'm getting crashes that are attributed to random modules, not really sure whats causing them, but I wonder if it might be related.
I determined that some were related to drawing polygons wrong (as in not listing the coordinates in a counter clockwise fashion).
but I still frequently get this: This is the chunk that its refering to:
Code: Select all
205 // Create core polygon shape by shifting edges inward.
206 // Also compute the min/max radius for CCD.
207 for (int32 i = 0; i < m_vertexCount; ++i)
208 {
209 int32 i1 = i - 1 >= 0 ? i - 1 : m_vertexCount - 1;
210 int32 i2 = i;
211
212 b2Vec2 n1 = m_normals[i1];
213 b2Vec2 n2 = m_normals[i2];
214 b2Vec2 v = m_vertices[i] - m_centroid;;
215
216 b2Vec2 d;
217 d.x = b2Dot(n1, v) - b2_toiSlop;
218 d.y = b2Dot(n2, v) - b2_toiSlop;
219
220 // Shifting the edge inward by b2_toiSlop should
221 // not cause the plane to pass the centroid.
222
223 // Your shape has a radius/extent less than b2_toiSlop.
224 b2Assert(d.x >= 0.0f);
225 b2Assert(d.y >= 0.0f);
226 b2Mat22 A;
227 A.col1.x = n1.x; A.col2.x = n1.y;
228 A.col1.y = n2.x; A.col2.y = n2.y;
229 m_coreVertices[i] = A.Solve(d) + m_centroid;
230 }
231 }
Also on occasion I'm getting crashes that are attributed to random modules, not really sure whats causing them, but I wonder if it might be related.