public override void DrawPolygon(b2Vec2[] vertices, int vertexCount, b2Color color)
{
if (!primitiveBatch.IsReady())
{
throw new InvalidOperationException("BeginCustomDraw must be called before drawing anything.");
}
for (int i = 0; i < vertexCount - 1; i++)
{
primitiveBatch.AddVertex(vertices[i].ToCCVector2() * PTMRatio, color.ToCCColor4B(), PrimitiveType.LineList);
primitiveBatch.AddVertex(vertices[i + 1].ToCCVector2() * PTMRatio, color.ToCCColor4B(), PrimitiveType.LineList);
}
primitiveBatch.AddVertex(vertices[vertexCount - 1].ToCCVector2() * PTMRatio, color.ToCCColor4B(), PrimitiveType.LineList);
primitiveBatch.AddVertex(vertices[0].ToCCVector2() * PTMRatio, color.ToCCColor4B(), PrimitiveType.LineList);
}
public static void DrawLine(CCPoint origin, CCPoint destination, CCColor4B color)
{
var a = origin;
var b = destination;
var n = CCPoint.Normalize(CCPoint.PerpendicularCCW(a - b));
var lww = LineWidth * 0.5f;
var nw = n * lww;
var v0 = b - nw;
var v1 = b + nw;
var v2 = a - nw;
var v3 = a + nw;
// Triangles from beginning to end
batch.AddVertex(v1, color, PrimitiveType.TriangleList);
batch.AddVertex(v2, color, PrimitiveType.TriangleList);
batch.AddVertex(v0, color, PrimitiveType.TriangleList);
batch.AddVertex(v1, color, PrimitiveType.TriangleList);
batch.AddVertex(v2, color, PrimitiveType.TriangleList);
batch.AddVertex(v3, color, PrimitiveType.TriangleList);
}
