private void MoveMeshesForCornerPiece(TerrainPiece currentTerrain, TerrainPiece nextTerrain, Vector3 origin)
{
//Because of the rotations these can overlap. So get the difference, then add our spacing for the corners
//TODO: Revisit this, I don't think it is working quite right
float maxXPrevious = currentTerrain.FrontMesh.RotatedPlaneVerticies.Select(p => p.x).Max();
float minXCurrent = nextTerrain.FrontMesh.RotatedPlaneVerticies.Select(p => p.x).Min();
float diff = Math.Abs(maxXPrevious - minXCurrent);
float spacing = diff + settings.CornerMeshWidth;
//Move every mesh piece in this terrain to give us space to have our corner mesh
for (int j = 0; j < nextTerrain.MeshPieces.Count; j++)
{
MeshPiece mp = nextTerrain.MeshPieces[j];
Vector3 moveAmount = new Vector3(origin.x + spacing, origin.y, origin.z);
if (mp.PlaneType == MeshPiece.Plane.Detail)
{
//Move the detail mesh slightly in front of the front plane mesh
moveAmount = moveAmount + settings.DetailPlaneOffset;
mp.MoveMesh(moveAmount, mp.PlaneType);
}
else
{
mp.MoveMesh(moveAmount, mp.PlaneType);
}
}
}
public void UpdateAllFrontTopVerticies()
{
if (AllFrontTopVerticies == null)
{
AllFrontTopVerticies = new List <Vector3>();
}
else
{
AllFrontTopVerticies.Clear();
}
List <TerrainPiece> pieces = Pool.TerrainPieces.OrderBy(terp => terp.FrontMesh.BottomLeftCorner.x).ToList();
for (int i = 0; i < pieces.Count(); i++)
{
TerrainPiece tp = pieces[i];
MeshPiece mp = tp.FrontMesh;
for (int k = 0; k < mp.RotatedPlaneVerticies.Count(); k++)
{
//Evens are bottom verts, odds are top
if (k % 2 != 0)
{
AllFrontTopVerticies.Add(mp.RotatedPlaneVerticies[k]);
}
}
}
}
public List <Vector3> GetCornerVerts(TerrainPiece previousTerrain, TerrainPiece currentTerrain, MeshPiece.Plane planeType, bool topVerts)
{
MeshPiece lastMesh = null;
MeshPiece currentMesh = null;
List <Vector3> verts = new List <Vector3>();
if (planeType == MeshPiece.Plane.Front)
{
lastMesh = previousTerrain.FrontMesh;
currentMesh = currentTerrain.FrontMesh;
}
else if (planeType == MeshPiece.Plane.Detail)
{
lastMesh = previousTerrain.DetailMesh;
currentMesh = currentTerrain.DetailMesh;
}
if (topVerts)
{
verts.Add(lastMesh.TopRightCorner);
verts.Add(currentMesh.TopLeftCorner);
}
else
{
verts.Add(lastMesh.BottomRightCorner);
verts.Add(currentMesh.BottomLeftCorner);
}
return(verts);
}
public void CreateCorner(VertexGenerator vg, TerrainPiece previousTerrain, TerrainPiece currentTerrain, Transform newParent)
{
//Our plane is made up of the last top and bottom verts of the previous mesh, and the first top and bottom verts of the current mesh
List <Vector3> topVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Front, true);
List <Vector3> bottomVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Front, false);
//Create our front mesh piece
MeshPiece meshPiece = new MeshPiece(vg, MeshPiece.Plane.Front, settings);
meshPiece.CreateCorner(topVerticies, bottomVerticies);
//The first mesh could be null if we are below the minimum verticies we need to create a plane
if (meshPiece.MeshObject != null)
{
TransformHelpers th = new TransformHelpers();
//Now we've created the front of our mesh
InstantiateTerrainObject(0f, newParent);
MeshPieces.Add(meshPiece);
//Add detail mesh
if (settings.DrawDetailMeshRenderer)
{
MeshPiece meshPieceDetail = new MeshPiece(vg, MeshPiece.Plane.Detail, settings);
topVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Detail, true);
bottomVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Detail, false);
meshPieceDetail.CreateCorner(topVerticies, bottomVerticies);
MeshPieces.Add(meshPieceDetail);
}
if (settings.DrawTopMeshCollider || settings.DrawTopMeshRenderer)
{
//Create the verticies for the top of our mesh, and add that too
MeshPiece meshPieceTop = new MeshPiece(vg, MeshPiece.Plane.Top, settings);
//Use the top verts as our bottom z row
bottomVerticies = th.CopyList(topVerticies);
Vector3 firstBottomVertex = topVerticies[0];
//Then shift the top verts into the z plane
topVerticies = th.MoveStartVertex(topVerticies, firstBottomVertex, new Vector3(firstBottomVertex.x, firstBottomVertex.y, firstBottomVertex.z + settings.TopPlaneHeight), false);
meshPieceTop.CreateCorner(topVerticies, bottomVerticies);
if (settings.TopPhysicsMaterial2D != null)
{
meshPieceTop.edgeCollider.sharedMaterial = settings.TopPhysicsMaterial2D; // assign Physics Material if any
}
if (settings.TerrainLayer != 0)
{
meshPieceTop.MeshObject.layer = settings.TerrainLayer; // assign Layer if any
}
MeshPieces.Add(meshPieceTop);
}
//Just to tidy up the heirarchy
ParentMeshesToTerrainObject();
}
}
//Get the farthest x point at the end of our last mesh
public float GetFarthestX()
{
float x = 0;
TerrainPiece last = GetLastTerrainPiece();
if (last == null)
{
return(x);
}
return(last.NextTerrainOrigin.x);
}
//Get the farthest x point at the end of our last mesh
public float GetFarthestX()
{
float x = 0;
TerrainPiece last = GetLastTerrainPiece();
if (last == null)
{
return(x);
}
//Debug.Log(settings.TerrainManagerName + ".TerrainManager.GetFarthestX:return " + last.NextTerrainOrigin.x);
return(last.NextTerrainOrigin.x);
}
public TerrainPiece GenerateTerrainPiece(TerrainPiece currentTerrain, Vector3 origin)
{
//Don't keep generation if we have no rules left
if (VertexGen.CurrentTerrainRule == null)
{
return(null);
}
//Create our next terrain piece (consists of multiple meshes)
TerrainPiece nextTerrain = new TerrainPiece(settings);
nextTerrain.Create(VertexGen, origin);
//We can legitimately get a null terrain object if we don't have enough verts to create another. This then moves us to the next rule.
//Retry once to see if we get more terrain, if not, we are at the end of the rules and cannot generate any more terrain
if (nextTerrain.TerrainObject == null && VertexGen.CurrentTerrainRule != null)
{
nextTerrain.Create(VertexGen, origin);
}
//Make sure we had enough verticies to create a terrain piece
if (nextTerrain.TerrainObject != null)
{
//Make sure this is not the first piece
if (currentTerrain != null)
{
//Is our angle between pieces different? Then we need a corner piece
if (currentTerrain.TerrainAngle != nextTerrain.TerrainAngle)
{
//Move our next terrain mesh pieces out some so we can fit in the corner terrain piece
MoveMeshesForCornerPiece(currentTerrain, nextTerrain, origin);
//Create corner terrain piece between the previous piece and this one
TerrainPiece tpCorner = new TerrainPiece(settings);
tpCorner.CreateCorner(VertexGen, currentTerrain, nextTerrain);
Pool.Add(tpCorner);
}
}
//And now create our standard piece
Pool.Add(nextTerrain);
return(nextTerrain);
}
else
{
return(null);
}
}
/// <summary>
/// Generate terrain pieces up the the given x point in space
/// </summary>
/// <param name="endX"></param>
public void Generate(float endX)
{
//At the end of our rules? Stop here.
if (VertexGen.CurrentTerrainRule == null)
{
return;
}
//The piece we are on right now (before generating a new piece)
TerrainPiece currentTerrain = GetLastTerrainPiece();
if (currentTerrain == null)
{
currentTerrain = GenerateTerrainPiece(null, settings.OriginalStartPoint);
}
while (currentTerrain.NextTerrainOrigin.x < endX)
{
//Generate our next terrain
currentTerrain = GenerateTerrainPiece(currentTerrain, currentTerrain.NextTerrainOrigin);
//Can't generate any more terrain? Break out
if (currentTerrain == null)
{
break;
}
}
//Create a terrain manager if we don't have one, and organize our objects
if (!TerrainObject)
{
InstantiateTerrainObject(settings.TerrainManagerName);
}
ParentTerrainPiecesToTerrainObject();
//Update our list of the top verticies
UpdateAllFrontTopVerticies();
}
/// <summary>
/// Remove terrain pieces once the are out of view of the left side of the camera
/// </summary>
public void Cleanup(float beginX)
{
List <TerrainPiece> piecesToRemove = new List <TerrainPiece>();
for (int i = 0; i < Pool.TerrainPieces.Count; i++)
{
TerrainPiece piece = Pool.TerrainPieces[i];
if (piece.NextTerrainOrigin.x < beginX)
{
piecesToRemove.Add(piece);
}
}
for (int i = 0; i < piecesToRemove.Count(); i++)
{
Pool.Remove(piecesToRemove[i]);
}
if (Pool.TerrainPieces.Count == 0)
{
RemoveTerrainObject(settings.TerrainManagerName);
}
}
public void Add(TerrainPiece tp)
{
TerrainPieces.Add(tp);
}
public void Add(TerrainPiece tp)
{
TerrainPieces.Add(tp);
}
public void Remove(TerrainPiece tp)
{
TerrainPieces.Remove(tp);
GameObject.DestroyImmediate(tp.TerrainObject);
}
public void CreateCorner(VertexGenerator vg, TerrainPiece previousTerrain, TerrainPiece currentTerrain)
{
//Our plane is made up of the last top and bottom verts of the previous mesh, and the first top and bottom verts of the current mesh
List<Vector3> topVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Front, true);
List<Vector3> bottomVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Front, false);
//Create our front mesh piece
MeshPiece meshPiece = new MeshPiece(vg, MeshPiece.Plane.Front, settings);
meshPiece.CreateCorner(topVerticies, bottomVerticies);
//The first mesh could be null if we are below the minimum verticies we need to create a plane
if (meshPiece.MeshObject != null)
{
TransformHelpers th = new TransformHelpers();
//Now we've created the front of our mesh
InstantiateTerrainObject();
MeshPieces.Add(meshPiece);
//Add detail mesh
if (settings.DrawDetailMeshRenderer)
{
MeshPiece meshPieceDetail = new MeshPiece(vg, MeshPiece.Plane.Detail, settings);
topVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Detail, true);
bottomVerticies = GetCornerVerts(previousTerrain, currentTerrain, MeshPiece.Plane.Detail, false);
meshPieceDetail.CreateCorner(topVerticies, bottomVerticies);
MeshPieces.Add(meshPieceDetail);
}
if (settings.DrawTopMeshCollider || settings.DrawTopMeshRenderer)
{
//Create the verticies for the top of our mesh, and add that too
MeshPiece meshPieceTop = new MeshPiece(vg, MeshPiece.Plane.Top, settings);
//Use the top verts as our bottom z row
bottomVerticies = th.CopyList(topVerticies);
Vector3 firstBottomVertex = topVerticies[0];
//Then shift the top verts into the z plane
topVerticies = th.MoveStartVertex(topVerticies, firstBottomVertex, new Vector3(firstBottomVertex.x, firstBottomVertex.y, firstBottomVertex.z + settings.TopPlaneHeight), false);
meshPieceTop.CreateCorner(topVerticies, bottomVerticies);
MeshPieces.Add(meshPieceTop);
}
//Just to tidy up the heirarchy
ParentMeshesToTerrainObject();
}
}
public void Remove(TerrainPiece tp)
{
TerrainPieces.Remove(tp);
GameObject.DestroyImmediate(tp.TerrainObject);
}
private void MoveMeshesForCornerPiece(TerrainPiece currentTerrain, TerrainPiece nextTerrain, Vector3 origin)
{
//Because of the rotations these can overlap. So get the difference, then add our spacing for the corners
//TODO: Revisit this, I don't think it is working quite right
float maxXPrevious = currentTerrain.FrontMesh.RotatedPlaneVerticies.Select(p => p.x).Max();
float minXCurrent = nextTerrain.FrontMesh.RotatedPlaneVerticies.Select(p => p.x).Min();
float diff = Math.Abs(maxXPrevious - minXCurrent);
float spacing = diff + settings.CornerMeshWidth;
//Move every mesh piece in this terrain to give us space to have our corner mesh
for (int j = 0; j < nextTerrain.MeshPieces.Count; j++)
{
MeshPiece mp = nextTerrain.MeshPieces[j];
Vector3 moveAmount = new Vector3(origin.x + spacing, origin.y, origin.z);
if (mp.PlaneType == MeshPiece.Plane.Detail)
{
//Move the detail mesh slightly in front of the front plane mesh
moveAmount = moveAmount + settings.DetailPlaneOffset;
mp.MoveMesh(moveAmount, mp.PlaneType);
}
else
{
mp.MoveMesh(moveAmount, mp.PlaneType);
}
}
}
public TerrainPiece GenerateTerrainPiece(TerrainPiece currentTerrain, Vector3 origin)
{
//Don't keep generation if we have no rules left
if (VertexGen.CurrentTerrainRule == null){return null;}
//Create our next terrain piece (consists of multiple meshes)
TerrainPiece nextTerrain = new TerrainPiece(settings);
nextTerrain.Create(VertexGen, origin);
//We can legitimately get a null terrain object if we don't have enough verts to create another. This then moves us to the next rule.
//Retry once to see if we get more terrain, if not, we are at the end of the rules and cannot generate any more terrain
if (nextTerrain.TerrainObject == null && VertexGen.CurrentTerrainRule != null)
{
nextTerrain.Create(VertexGen, origin);
}
//Make sure we had enough verticies to create a terrain piece
if (nextTerrain.TerrainObject != null)
{
//Make sure this is not the first piece
if (currentTerrain != null)
{
//Is our angle between pieces different? Then we need a corner piece
if (currentTerrain.TerrainAngle != nextTerrain.TerrainAngle)
{
//Move our next terrain mesh pieces out some so we can fit in the corner terrain piece
MoveMeshesForCornerPiece(currentTerrain, nextTerrain, origin);
//Create corner terrain piece between the previous piece and this one
TerrainPiece tpCorner = new TerrainPiece(settings);
tpCorner.CreateCorner(VertexGen, currentTerrain, nextTerrain);
Pool.Add(tpCorner);
}
}
//And now create our standard piece
Pool.Add(nextTerrain);
return nextTerrain;
}
else
{
return null;
}
}
public List<Vector3> GetCornerVerts(TerrainPiece previousTerrain, TerrainPiece currentTerrain, MeshPiece.Plane planeType, bool topVerts)
{
MeshPiece lastMesh = null;
MeshPiece currentMesh = null;
List<Vector3> verts = new List<Vector3>();
if (planeType == MeshPiece.Plane.Front)
{
lastMesh = previousTerrain.FrontMesh;
currentMesh = currentTerrain.FrontMesh;
}
else if (planeType == MeshPiece.Plane.Detail)
{
lastMesh = previousTerrain.DetailMesh;
currentMesh = currentTerrain.DetailMesh;
}
if (topVerts)
{
verts.Add(lastMesh.TopRightCorner);
verts.Add(currentMesh.TopLeftCorner);
}
else
{
verts.Add(lastMesh.BottomRightCorner);
verts.Add(currentMesh.BottomLeftCorner);
}
return verts;
}