void b2World::DrawShape(b2Fixture* fixture, const b2Transform& xf, const b2Color& color)
{
b2Color coreColor(0.9f, 0.6f, 0.6f);
switch (fixture->GetType())
{
case b2Shape::e_circle:
{
b2CircleShape* circle = (b2CircleShape*)fixture->GetShape();
b2Vec2 center = b2Mul(xf, circle->m_p);
float32 radius = circle->m_radius;
b2Vec2 axis = xf.R.col1;
m_debugDraw->DrawSolidCircle(center, radius, axis, color);
}
break;
case b2Shape::e_polygon:
{
b2PolygonShape* poly = (b2PolygonShape*)fixture->GetShape();
int32 vertexCount = poly->m_vertexCount;
b2Assert(vertexCount <= b2_maxPolygonVertices);
b2Vec2 vertices[b2_maxPolygonVertices];
for (int32 i = 0; i < vertexCount; ++i)
{
vertices[i] = b2Mul(xf, poly->m_vertices[i]);
}
m_debugDraw->DrawSolidPolygon(vertices, vertexCount, color);
}
break;
}
}
void b2World::DrawShape(b2Shape* shape, const b2XForm& xf, const b2Color& color, bool core)
{
b2Color coreColor(0.9f, 0.6f, 0.6f);
switch (shape->GetType())
{
case e_circleShape:
{
b2CircleShape* circle = (b2CircleShape*)shape;
b2Vec2 center = b2Mul(xf, circle->GetLocalPosition());
float32 radius = circle->GetRadius();
b2Vec2 axis = xf.R.col1;
m_debugDraw->DrawSolidCircle(center, radius, axis, color);
if (core)
{
m_debugDraw->DrawCircle(center, radius - b2_toiSlop, coreColor);
}
}
break;
case e_polygonShape:
{
b2PolygonShape* poly = (b2PolygonShape*)shape;
int32 vertexCount = poly->GetVertexCount();
const b2Vec2* localVertices = poly->GetVertices();
b2Assert(vertexCount <= b2_maxPolygonVertices);
b2Vec2 vertices[b2_maxPolygonVertices];
for (int32 i = 0; i < vertexCount; ++i)
{
vertices[i] = b2Mul(xf, localVertices[i]);
}
m_debugDraw->DrawSolidPolygon(vertices, vertexCount, color);
if (core)
{
const b2Vec2* localCoreVertices = poly->GetCoreVertices();
for (int32 i = 0; i < vertexCount; ++i)
{
vertices[i] = b2Mul(xf, localCoreVertices[i]);
}
m_debugDraw->DrawPolygon(vertices, vertexCount, coreColor);
}
}
break;
case e_unknownShape:
case e_shapeTypeCount:
break;
}
}
