public virtual void Draw(b2Draw draw)
{
b2Color c = new b2Color(0.4f, 0.5f, 0.7f);
for (int i = 0; i < m_count - 1; ++i)
{
draw.DrawSegment(m_ps[i], m_ps[i + 1], c);
}
}
public void DrawShape(b2Fixture fixture, b2Transform xf, b2Color color)
{
switch (fixture.ShapeType)
{
case b2ShapeType.e_circle:
{
b2CircleShape circle = (b2CircleShape)fixture.Shape;
b2Vec2 center = b2Math.b2Mul(xf, circle.Position);
float radius = circle.Radius;
b2Vec2 axis = b2Math.b2Mul(xf.q, new b2Vec2(1.0f, 0.0f));
m_debugDraw.DrawSolidCircle(center, radius, axis, color);
}
break;
case b2ShapeType.e_edge:
{
b2EdgeShape edge = (b2EdgeShape)fixture.Shape;
b2Vec2 v1 = b2Mul(xf, edge.m_vertex1);
b2Vec2 v2 = b2Mul(xf, edge.m_vertex2);
m_debugDraw.DrawSegment(v1, v2, color);
}
break;
case b2ShapeType.e_chain:
{
b2ChainShape chain = (b2ChainShape)fixture.Shape;
int count = chain.Count;
b2Vec2[] vertices = chain.Vertices;
b2Vec2 v1 = b2Math.b2Mul(xf, vertices[0]);
for (int i = 1; i < count; ++i)
{
b2Vec2 v2 = b2Math.b2Mul(xf, vertices[i]);
m_debugDraw.DrawSegment(v1, v2, color);
m_debugDraw.DrawCircle(v1, 0.05f, color);
v1 = v2;
}
}
break;
case b2ShapeType.e_polygon:
{
b2PolygonShape poly = (b2PolygonShape)fixture.Shape;
int vertexCount = poly.VertexCount;
b2Vec2[] vertices = new b2Vec2[b2Settings.b2_maxPolygonVertices];
for (int i = 0; i < vertexCount; ++i)
{
vertices[i] = b2Math.b2Mul(xf, poly.Vertices[i]);
}
m_debugDraw.DrawSolidPolygon(vertices, vertexCount, color);
}
break;
default:
break;
}
}