public void Descript(FractalSystemNode node, int depth)
{
if (node.growRate < iterGrowRate)
{
stoppedCount++;
node.ClearNode();
return;
}
if (depth >= iterationMax)
{
//因为在这个工程中，只会渲染整棵树，所以不需要下面串起来的链表。
node.ClearNode();
return;
}
if (node.child.Count == 0)//这个节点还没有展开过
{
node.generateChildren();
}
//node.updateChildren();
foreach (FractalSystemNode child in node.child)
{
Descript(child, depth + 1);
}
//同样因为没有链表，所以不用进行后续的处理。
}
void Render(World world, FractalRenderState state, FractalSystemNode node)
{
((TreeVer4_Ultra)node)?.SetColors(trunkBlock, branchBlock, leafSetup.leaf);
((TreeVer4_Ultra)node)?.SetLeaf(leafSetup);
node.Express(world, ref state);
foreach (FractalSystemNode child in node.child)
{
Render(world, state, child);
}
}
void RenderNodeRec(FractalRenderState state, FractalSystemNode node)
{
node.Express(
vertices, ref verticesCount, //Vertices
indices, ref indicesCount, //Indices
normals, ref normalsCount, //Normals
uvs, uv2s, uv3s, uv4s, //TexCoord(uv)
tangents, ref tmp, //Tangents
ref state);
foreach (FractalSystemNode child in node.child)
{
RenderNodeRec(state, child);
}
}
// Use this for initialization
void Start()
{
UnityEngine.Random.seed = randomSeed;
switch (fractalType) //Simple factory
{
case FractalType.boxTest:
startNode = new BoxTest();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer1:
startNode = new TreeVer1Beta();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer1_ReducedVertices:
startNode = new TreeVer1_ReducedVertices();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer2Cyc_ConcretedNormals:
startNode = new TreeVer2Cyc();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer3Cyc_Spline:
startNode = new TreeVer3_CycWithSpline();
startNode.growRate = startGrowRate;
break;
}
Descript(startNode, 0);
//Debug.Log(stoppedCount);
RenderMesh();
}
public void Generate(BoundsInt bound, World world)
{
Vector3 dirc = (bound.max - bound.min);
//TestTree.FillCyclinder(world, (uint)Blocks.wood, bound.min, bound.max, 4, 2, dirc.normalized, dirc.normalized);
System.Random random = new System.Random((bound.x << 16) ^ (bound.y << 8) ^ (bound.z));
startNode = new TreeVer4_Ultra(random, this.trunkLen, crownWidth, rootScale, endRadiusScale);
startNode.growRate = startGrowRate;
startNode.init();
Descript(startNode, 0);
FractalRenderState state = new FractalRenderState();
state.position = new Vector3(bound.center.x, bound.min.y, bound.center.z);
state.rotation = Quaternion.identity;
state.scale = this.scale;
Render(world, state, startNode);
}
public void Descript(FractalSystemNode node, int depth)
{
// Check terminating conditions
if (node.growRate < iterGrowRate)
{
return;
}
if (depth >= iterationMax)
{
node.ClearNode();
return;
}
// Expand the node if it have not been expanded.
if (node.child.Count == 0)
{
node.generateChildren();
}
foreach (FractalSystemNode child in node.child)
{
Descript(child, depth + 1);
}
}
public void ReDraw()
{
UnityEngine.Random.seed = randomSeed;
switch (fractalType) //Simple factory
{
case FractalType.boxTest:
startNode = new BoxTest();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer1:
startNode = new TreeVer1Beta();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer1_ReducedVertices:
startNode = new TreeVer1_ReducedVertices();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer2Cyc_ConcretedNormals:
startNode = new TreeVer2Cyc();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer3Cyc_Spline:
startNode = new TreeVer3_CycWithSpline();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer3_G:
startNode = new TreeVer3_withGravity();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer4:
startNode = new TreeVer4_Ultra();
startNode.growRate = startGrowRate;
break;
case FractalType.treeVer4_Frond:
startNode = new TreeVer4_Frond();
startNode.growRate = startGrowRate;
break;
}
startNode.startGrowRate = startGrowRate;
indices.Clear();
indicesCount.Clear();
verticesCount = 0;
for (int i = 0; i < startNode.submeshCount; i++)
{
indices.Add(new int[indicesMax]);
indicesCount.Add(0);
}
startNode.randomSeed *= randomSeed;
startNode.fractalMode = fractalMode;
startNode.init();
Descript(startNode, 0);
//Debug.Log(stoppedCount);
RenderMesh();
}