public static void SetPolygon(ref SBPConvexData data, int corner, float size, float startAngle, InnerEdgeConstructionType innerEdgeConstructionType)
{
if (data == null)
{
return;
}
corner = Mathf.Max(corner, 3);
size = Mathf.Max(size, 1e-3f);
if (corner % 2 == 0)
{
// 偶数角の場合
int h = corner / 2;
data.nodes = new SBPNodeData[corner];
data.edges = new SBPEdgeData[corner + h];
float angleDelta = 360f / corner;
for (int i = 0; i < corner; ++i)
{
float angle = angleDelta * i + startAngle;
data.nodes[i] = new SBPNodeData(Utilities.GetAngledVectorWithDegree(angle));
}
for (int i = 0, j = corner - 1; i < corner; j = i++)
{
data.edges[i] = new SBPEdgeData(i, j);
}
for (int i = 0; i < h; ++i)
{
data.edges[corner + i] = new SBPEdgeData(i, i + h);
}
data.helperNodeOffset = corner;
}
else
{
// 奇数角の場合は中心点が必要
data.nodes = new SBPNodeData[corner + 1];
data.edges = new SBPEdgeData[corner * 2];
float angleDelta = 360f / corner;
for (int i = 0; i < corner; ++i)
{
float angle = angleDelta * i + startAngle;
data.nodes[i] = new SBPNodeData(Utilities.GetAngledVectorWithDegree(angle));
}
data.nodes[corner] = new SBPNodeData(Vector2.zero);
for (int i = 0, j = corner - 1; i < corner; j = i++)
{
data.edges[i * 2] = new SBPEdgeData(i, j);
data.edges[i * 2 + 1] = new SBPEdgeData(i, corner);
}
data.helperNodeOffset = corner;
}
}
private void OnWizardCreate()
{
SBPConvexData obj = SBPConvexData.CreateInstance("SBPConvexData") as SBPConvexData;
SetPolygon(ref obj, corner, 1f, 0f, InnerEdgeConstructionType.ConnectWithCenter);
// SetTriangle(ref obj, 1f, 0f);
AssetDatabase.CreateAsset(obj, path + "/SBPConvexData.asset");
}
public static Convex LoadFromConvexData(SBPConvexData data, Vector2 translation, float rotation, Vector2 scale)
{
if (data == null)
{
return(null);
}
// ノードを作成
List <Node> nodes = new List <Node>();
for (int i = 0; i < data.nodes.Length; ++i)
{
SBPNodeData nodeData = data.nodes[i];
Vector2 position = nodeData.position;
position *= scale;
position = Utilities.RotateVector(position, rotation);
position += translation;
Node n = new Node(position, nodeData.mass, nodeData.damping);
nodes.Add(n);
}
// エッジを作成
List <Edge> edges = new List <Edge>();
for (int i = 0; i < data.edges.Length; ++i)
{
SBPEdgeData edgeData = data.edges[i];
Edge e = new Edge(nodes[edgeData.aIdx], nodes[edgeData.bIdx]);
edges.Add(e);
}
// 凸包を作成
Convex convex = new Convex();
int offset = data.helperNodeOffset;
for (int i = 0; i < nodes.Count; ++i)
{
if (i < offset)
{
convex.AddCollisionNode(nodes[i]);
}
else
{
convex.AddHelperNode(nodes[i]);
}
}
convex.edges = edges;
convex.RecalculateBounds();
return(convex);
}