public PolySet Inset(PolySet polys, float interpolation)
{
PolySet stitchedPolys = StitchIdentifiedPolys(polys);
List <int> verts = polys.GetUniqueVerts();
//Calculate the average center of all the vertices in these Polygons.
Vector3 center = Vector3.zero;
foreach (int vert in verts)
{
center += m_Vertices[vert];
}
center /= verts.Count;
// Pull each vertex towards the center, then correct it's height so that it's as far from the center of
// the planet as it was before.
foreach (int vert in verts)
{
Vector3 v = m_Vertices[vert];
float height = v.magnitude;
v = Vector3.Lerp(v, center, interpolation);
v = v.normalized * height;
m_Vertices[vert] = v;
}
return(stitchedPolys);
}
private KeyValuePair <bool, PolySet> IsZoneCircled(Polygon currentPoly, PolySet checkedPolys, int depth = 0)
{
depth++;
checkedPolys.Add(currentPoly);
/*
* if (depth > 10 || checkedPolys.Count > 10)
* {
* return new KeyValuePair<bool, PolySet>(false, checkedPolys);
* }*/
bool isCircled = true;
foreach (Polygon neighborPoly in currentPoly.m_Neighbors)
{
if (neighborPoly.m_territory == Territory.Cliff || neighborPoly.m_territory == Territory.Ocean)
{
return(new KeyValuePair <bool, PolySet>(false, checkedPolys));
}
else if (!checkedPolys.Contains(neighborPoly) &&
(neighborPoly.m_territory == Territory.Neutral ||
neighborPoly.m_territory == Territory.BlueClan))
{
KeyValuePair <bool, PolySet> result = IsZoneCircled(neighborPoly, checkedPolys, depth);
checkedPolys = result.Value;
isCircled &= result.Key;
}
}
return(new KeyValuePair <bool, PolySet>(isCircled, checkedPolys));
}
// RemoveEdges - Remove any poly from this set that borders the edge of the set, including those that just
// touch the edge with a single vertex. The PolySet could be empty after this operation.
public PolySet RemoveEdges()
{
var newSet = new PolySet();
var edgeSet = CreateEdgeSet();
var edgeVertices = edgeSet.GetUniqueVertices();
foreach (Polygon poly in this)
{
bool polyTouchesEdge = false;
for (int i = 0; i < 3; i++)
{
if (edgeVertices.Contains(poly.m_Vertices[i]))
{
polyTouchesEdge = true;
break;
}
}
if (polyTouchesEdge)
{
continue;
}
newSet.Add(poly);
}
return(newSet);
}
public void SpawnNodes(PolySet water)
{
List <Vector3> spawnPoints = new List <Vector3>();
List <Polygon> _water = new List <Polygon>(water);
for (int i = 0; i < m_NumberOfShops; i++)
{
Polygon poly = _water[Random.Range(0, water.Count)];
Vector3 ab = m_Vertices[poly.m_Vertices[1]] - m_Vertices[poly.m_Vertices[0]];
Vector3 ac = m_Vertices[poly.m_Vertices[2]] - m_Vertices[poly.m_Vertices[0]];
Vector3 normal = Vector3.Cross(ab, ac).normalized;
Vector3 shopToPlace = m_PlanetMesh.transform.TransformPoint(normal);
if (checkShopDistance(shopToPlace, spawnPoints))
{
spawnPoints.Add(shopToPlace);
}
else
{
i--;
m_shopRangeMin -= 0.02f;
}
}
m_nodeController.GenerateNodes(_nodePrefab, spawnPoints, m_PlanetMesh.transform);
}
private static PolySet StitchPolys(ICollection <Polygon> polygons, IList <Vector3> vertices, PolySet polys, out EdgeSet stitchedEdge)
{
var stichedPolys = new PolySet {
StitchedVertexThreshold = vertices.Count
};
stitchedEdge = PolySet.CreateEdgeSet(polys);
IList <int> originalVerts = EdgeSet.GetUniqueVertices(stitchedEdge);
IList <int> newVerts = CloneVertices(vertices, originalVerts);
stitchedEdge.Split(originalVerts, newVerts);
foreach (Edge edge in stitchedEdge)
{
// Create new polys along the stitched edge. These
// will connect the original poly to its former
// neighbor.
var stitchPoly1 = new Polygon(edge.OuterVerts[0],
edge.OuterVerts[1],
edge.InnerVerts[0]);
var stitchPoly2 = new Polygon(edge.OuterVerts[1],
edge.InnerVerts[1],
edge.InnerVerts[0]);
// Add the new stitched faces as neighbors to
// the original Polys.
Polygon.ReplacePolygon(edge.InnerPoly.Neighbors, edge.OuterPoly, stitchPoly2);
Polygon.ReplacePolygon(edge.OuterPoly.Neighbors, edge.InnerPoly, stitchPoly1);
polygons.Add(stitchPoly1);
polygons.Add(stitchPoly2);
stichedPolys.Add(stitchPoly1);
stichedPolys.Add(stitchPoly2);
}
//Swap to the new vertices on the inner polys.
foreach (Polygon poly in polys)
{
for (int i = 0; i < 3; i++)
{
int vertID = poly.Vertices[i];
if (!originalVerts.Contains(vertID))
{
continue;
}
int vertIndex = originalVerts.IndexOf(vertID);
poly.Vertices[i] = newVerts[vertIndex];
}
}
return(stichedPolys);
}
private static PolySet CreateOcean(IEnumerable <Polygon> polygons, PolySet landPolys)
{
var oceanPolys = new PolySet();
foreach (Polygon poly in polygons.Where(poly => !landPolys.Contains(poly)))
{
oceanPolys.Add(poly);
}
return(oceanPolys);
}
public PolySet StitchPolys(PolySet polys, out EdgeSet stitchedEdge)
{
PolySet stichedPolys = new PolySet();
stichedPolys.m_StitchedVertexThreshold = m_Vertices.Count;
stitchedEdge = polys.CreateEdgeSet();
var originalVerts = stitchedEdge.GetUniqueVertices();
var newVerts = CloneVertices(originalVerts);
stitchedEdge.Split(originalVerts, newVerts);
foreach (Edge edge in stitchedEdge)
{
// Create new polys along the stitched edge. These
// will connect the original poly to its former
// neighbor.
var stitch_poly1 = new Polygon(edge.m_OuterVerts[0],
edge.m_OuterVerts[1],
edge.m_InnerVerts[0]);
var stitch_poly2 = new Polygon(edge.m_OuterVerts[1],
edge.m_InnerVerts[1],
edge.m_InnerVerts[0]);
// Add the new stitched faces as neighbors to
// the original Polys.
edge.m_InnerPoly.ReplaceNeighbor(edge.m_OuterPoly, stitch_poly2);
edge.m_OuterPoly.ReplaceNeighbor(edge.m_InnerPoly, stitch_poly1);
m_Polygons.Add(stitch_poly1);
m_Polygons.Add(stitch_poly2);
stichedPolys.Add(stitch_poly1);
stichedPolys.Add(stitch_poly2);
}
//Swap to the new vertices on the inner polys.
foreach (Polygon poly in polys)
{
for (int i = 0; i < 3; i++)
{
int vert_id = poly.m_Vertices[i];
if (!originalVerts.Contains(vert_id))
{
continue;
}
int vert_index = originalVerts.IndexOf(vert_id);
poly.m_Vertices[i] = newVerts[vert_index];
}
}
return(stichedPolys);
}
public PolySet Extrude(PolySet polys, float height)
{
PolySet stitchedPolys = StitchPolys(polys);
List <int> verts = polys.GetUniqueVertices();
foreach (int vert in verts)
{
Vector3 v = m_Vertices[vert];
v = v.normalized * (v.magnitude + height);
m_Vertices[vert] = v;
}
return(stitchedPolys);
}
private static PolySet GetPolysInSphere(IList <Vector3> vertices, Vector3 center, float radius, IEnumerable <Polygon> source)
{
var newSet = new PolySet();
foreach (Polygon p in source)
{
if (p.Vertices.Select(vertexIndex => Vector3.Distance(center, vertices[vertexIndex])).Any(distanceToSphere => distanceToSphere <= radius))
{
newSet.Add(p);
}
}
return(newSet);
}
public PolySet Extrude(PolySet polys, float height)
{
PolySet stitchedPolys = StitchIdentifiedPolys(polys);
List <int> verts = polys.GetUniqueVerts();
// Take each vertex in this list of polys, and push it away from the center of the Planet by the height parameter.
foreach (int vert in verts)
{
Vector3 v = m_Vertices[vert];
v = v.normalized * (v.magnitude + height);
m_Vertices[vert] = v;
}
return(stitchedPolys);
}
public PolySet StitchIdentifiedPolys(PolySet polys)
{
PolySet stichedPolys = new PolySet();
var edgeSet = polys.GenerateEdgeSet();
var originalVerts = edgeSet.GetUniqueVertices();
var newVerts = CloneVertices(originalVerts);
edgeSet.Split(originalVerts, newVerts);
foreach (Edge edge in edgeSet)
{
// Create new polys along the stitched edge.
var stitch_poly1 = new Polygon(edge.m_OuterVerts[0],
edge.m_OuterVerts[1],
edge.m_InnerVerts[0]);
var stitch_poly2 = new Polygon(edge.m_OuterVerts[1],
edge.m_InnerVerts[1],
edge.m_InnerVerts[0]);
// Add the new stitched faces as neighbors to the original Polys.
edge.m_InnerPoly.ReplaceNeighbor(edge.m_OuterPoly, stitch_poly2);
edge.m_OuterPoly.ReplaceNeighbor(edge.m_InnerPoly, stitch_poly1);
m_Polygons.Add(stitch_poly1);
m_Polygons.Add(stitch_poly2);
stichedPolys.Add(stitch_poly1);
stichedPolys.Add(stitch_poly2);
}
//Vertices on inner polys are swapped.
foreach (Polygon poly in polys)
{
for (int i = 0; i < 3; i++)
{
int vert_id = poly.m_Vertices[i];
if (!originalVerts.Contains(vert_id))
{
continue;
}
int vert_index = originalVerts.IndexOf(vert_id);
poly.m_Vertices[i] = newVerts[vert_index];
}
}
return(stichedPolys);
}
private static PolySet CreateLand(IList <Polygon> polygons, IList <Vector3> vertices, float sizeMin, float sizeMax, int ofContinents)
{
var landPolys = new PolySet();
// Grab polygons that are inside random spheres. These will be the basis of our planet's continents.
for (int i = 0; i < ofContinents; i++)
{
float continentSize = Random.Range(sizeMin, sizeMax);
PolySet newLand = GetPolysInSphere(vertices, Random.onUnitSphere, continentSize, polygons);
landPolys.UnionWith(newLand);
}
return(landPolys);
}
public PolySet GetPolysInSphere(Vector3 center, float radius, IEnumerable <Polygon> source)
{
PolySet newSet = new PolySet();
foreach (Polygon p in source)
{
foreach (int vertexIndex in p.m_Vertices)
{
float distanceToSphere = Vector3.Distance(center, m_Vertices[vertexIndex]);
if (distanceToSphere <= radius)
{
newSet.Add(p);
break;
}
}
}
return(newSet);
}
private static PolySet Extrude(ICollection <Polygon> polygons, IList <Vector3> vertices, PolySet polys, float height)
{
PolySet stitchedPolys = StitchPolys(polygons, vertices, polys, out EdgeSet _);
IList <int> verts = PolySet.GetUniqueVertices(polys);
// Take each vertex in this list of polys, and push it
// away from the center of the Planet by the height
// parameter.
foreach (int vert in verts)
{
Vector3 v = vertices[vert];
v = v.normalized * (v.magnitude + height);
vertices[vert] = v;
}
return(stitchedPolys);
}
private static void GenerateHills(ICollection <Polygon> polygons, IList <Vector3> vertices, PolySet landPolys, Color32 landColor, Color32 sideColor)
{
// Grab additional polygons to generate hills, but only from the set of polygons that are land.
PolySet hillPolys = PolySet.RemoveEdges(landPolys);
PolySet insetSides = Inset(polygons, vertices, hillPolys, 0.03f);
PolySet.ApplyColor(insetSides, landColor);
insetSides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
PolySet extrudeSides = Extrude(polygons, vertices, hillPolys, 0.05f);
PolySet.ApplyColor(extrudeSides, sideColor);
//Hills have dark ambient occlusion on the bottom, and light on top.
extrudeSides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
}
public void Update()
{
if (Input.GetMouseButton(0))
{
RaycastHit hit;
if (!Physics.Raycast(_mainCamera.ScreenPointToRay(Input.mousePosition), out hit))
{
return;
}
MeshCollider meshCollider = hit.collider as MeshCollider;
if (meshCollider == null || meshCollider.sharedMesh == null)
{
return;
}
Mesh mesh = meshCollider.sharedMesh;
int[] triangles = mesh.triangles;
Color32[] colors32 = mesh.colors32;
// search for the Polygon object representing the clicked triangle among
// the land polygons of the planet.
Polygon hitPoly = PolySet.FindPolyInPolyset(hit.triangleIndex, _planet);
// if the Polygon object is not a land polygon
if (hitPoly == null || hitPoly.m_territory == Territory.RedClan)
{
return;
}
// Change the color of the clicked triangle
ColorTriangle(triangles, hit.triangleIndex, ref colors32, Clan.RedClan);
// Make sure we update the color and territory properties of the hit polygon
hitPoly.UpdateClan(Clan.RedClan);
// See if a zone has been circled
LookForCircledZonesInNeighbors(hitPoly, triangles, ref colors32);
mesh.colors32 = colors32;
}
}
public PolySet StitchPolys(PolySet polys)
{
PolySet stitchedPolys = new PolySet();
var edgeSet = polys.CreateEdgeSet();
var originalVerts = edgeSet.GetUniqueVertices();
var newVerts = CloneVertices(originalVerts);
edgeSet.Split(originalVerts, newVerts);
foreach (Edge edge in edgeSet)
{
var stitch_poly1 = new Polygon(edge.m_OuterVerts[0],
edge.m_OuterVerts[1],
edge.m_InnerVerts[0]);
var stitch_poly2 = new Polygon(edge.m_OuterVerts[1],
edge.m_InnerVerts[1],
edge.m_InnerVerts[0]);
edge.m_InnerPoly.ReplaceNeighbor(edge.m_OuterPoly, stitch_poly2);
edge.m_OuterPoly.ReplaceNeighbor(edge.m_InnerPoly, stitch_poly1);
m_Polygons.Add(stitch_poly1);
m_Polygons.Add(stitch_poly2);
stitchedPolys.Add(stitch_poly1);
stitchedPolys.Add(stitch_poly2);
}
foreach (Polygon poly in polys)
{
for (int i = 0; i < 3; i++)
{
int vert_id = poly.m_Vertices[i];
if (!originalVerts.Contains(vert_id))
{
continue;
}
int vert_index = originalVerts.IndexOf(vert_id);
poly.m_Vertices[i] = newVerts[vert_index];
}
}
return(stitchedPolys);
}
// RemoveEdges - Remove any poly from this set that borders the edge of the set, including those that just
// touch the edge with a single vertex. The PolySet could be empty after this operation.
public static PolySet RemoveEdges(HashSet <Polygon> polygons)
{
var newSet = new PolySet();
var edgeSet = CreateEdgeSet(polygons);
var edgeVertices = EdgeSet.GetUniqueVertices(edgeSet);
foreach (Polygon poly in polygons)
{
if (poly.Vertices.Any(vertices => edgeVertices.Contains(vertices)))
{
continue;
}
newSet.Add(poly);
}
return(newSet);
}
public PolySet Inset(PolySet polys, float interpolation)
{
PolySet stitchedPolys = StitchPolys(polys);
List <int> verts = polys.GetUniqueVertices();
Vector3 center = Vector3.zero;
foreach (int vert in verts)
{
center += m_Vertices[vert];
}
center /= verts.Count;
foreach (int vert in verts)
{
Vector3 v = m_Vertices[vert];
float height = v.magnitude;
v = Vector3.Lerp(v, center, interpolation);
v = v.normalized * height;
m_Vertices[vert] = v;
}
return(stitchedPolys);
}
public void Start()
{
// Create an icosahedron
test = new Polygon[10];
for (int i = 0; i < 10; i++)
{
test[i] = new Polygon(i, i, i);
}
Debug.Log(test[2].m_Color);
CreateIcosahedron();
SubdividePlanet(3);
// Calculates Neighbor vertices
CalculateNeighborVertices();
// By default, everything is blue.
Color32 colorOcean = new Color32(0, 80, 220, 0);
Color32 colorGrass = new Color32(0, 220, 0, 0);
Color32 colorDirt = new Color32(180, 140, 20, 0);
foreach (Polygon p in m_Polygons)
{
p.m_Color = colorOcean;
}
// Now we build a set of Polygons that will become the land. We do this by generating randomly sized spheres on the
// surface of the planet, and adding any Polygon that falls inside that sphere.
PolySet landPolys = new PolySet();
for (int i = 0; i < m_NumberOfContinents; i++)
{
float continentSize = Random.Range(m_ContinentSizeMin, m_ContinentSizeMax);
PolySet newLand = GetPolysInSphere(Random.onUnitSphere, continentSize, m_Polygons);
landPolys.UnionWith(newLand);
}
// This is our land now, so color it green.
foreach (Polygon landPoly in landPolys)
{
landPoly.m_Color = colorGrass;
}
// The Extrude function will raise the land Polygons up out of the water.
PolySet sides = Extrude(landPolys, 0.01f);
foreach (Polygon side in sides)
{
side.m_Color = colorDirt;
}
//Grab additional polygons to generate hills, but only from the set of polygons that are land.
PolySet hillPolys = new PolySet();
for (int i = 0; i < m_NumberOfHills; i++)
{
float hillSize = Random.Range(m_HillSizeMin, m_HillSizeMax);
PolySet newHill = GetPolysInSphere(Random.onUnitSphere, hillSize, landPolys);
hillPolys.UnionWith(newHill);
}
sides = Extrude(hillPolys, 0.03f);
foreach (Polygon side in sides)
{
side.m_Color = colorDirt;
}
//Generate an actual game mesh for this planet.
GeneratePlanetMesh();
}
public void Start()
{
foreach (Transform t in transform)
{
if (t.tag == "PlanetTerrain")
{
DestroyImmediate(t.gameObject);
}
}
foreach (Transform t in transform)
{
if (t.tag == "PlanetTerrain")
{
DestroyImmediate(t.gameObject);
}
}
InitAsIcosohedron();
Subdivide(SUBDIVIDES);
CalculateNeighbors();
foreach (Polygon p in m_Polygons)
{
p.m_Color = colorOcean;
}
PolySet landPolys = new PolySet();
PolySet sides;
for (int i = 0; i < m_NumberOfContinents; i++)
{
float continentSize = Random.Range(m_ContinentSizeMin, m_ContinentSizeMax);
PolySet newLand = GetPolysInSphere(Random.onUnitSphere, continentSize, m_Polygons);
landPolys.UnionWith(newLand);
}
var oceanPolys = new PolySet();
foreach (Polygon poly in m_Polygons)
{
if (!landPolys.Contains(poly))
{
oceanPolys.Add(poly);
}
}
var oceanSurface = new PolySet(oceanPolys);
sides = Inset(oceanSurface, 0.05f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
if (m_OceanMesh != null)
{
DestroyImmediate(m_OceanMesh);
}
m_OceanMesh = GenerateMesh("Ocean Surface", m_OceanMaterial);
foreach (Polygon landPoly in landPolys)
{
landPoly.m_Color = colorGrass;
}
sides = Extrude(landPolys, 0.05f);
sides.ApplyColor(colorDirt);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
PolySet hillPolys = landPolys.RemoveEdges();
sides = Inset(hillPolys, 0.03f);
sides.ApplyColor(colorGrass);
sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
sides = Extrude(hillPolys, 0.05f);
sides.ApplyColor(colorDirt);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
sides = Extrude(oceanPolys, -0.02f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
sides = Inset(oceanPolys, 0.02f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
var deepOceanPolys = oceanPolys.RemoveEdges();
sides = Extrude(deepOceanPolys, -0.05f);
sides.ApplyColor(colorDeepOcean);
deepOceanPolys.ApplyColor(colorDeepOcean);
if (m_GroundMesh != null)
{
DestroyImmediate(m_GroundMesh);
}
m_GroundMesh = GenerateMesh("Ground Mesh", m_GroundMaterial);
}
private static Mesh GetGroundMesh(IList <Polygon> polygons, IList <Vector3> vertices, float continentSizeMin, float continentSizeMax, int numberOfContinents, Color32 landColor, Color32 sideColor,
Color32 oceanColor, Color32 deepOceanColor, bool isGenerateHills, bool isGenerateDeepOceans)
{
// Now we build a set of Polygons that will become the land. We do this by generating
// randomly sized spheres on the surface of the planet, and adding any Polygon that falls
// inside that sphere.
PolySet landPolys = CreateLand(polygons, vertices, continentSizeMin, continentSizeMax, numberOfContinents);
// While we're here, let's make a group of oceanPolys. It's pretty simple: Any Polygon that isn't in the landPolys set
// must be in the oceanPolys set instead.
PolySet oceanPolys = CreateOcean(polygons, landPolys);
// Let's create the ocean surface as a separate mesh.
// First, let's make a copy of the oceanPolys so we can
// still use them to also make the ocean floor later.
var oceanSurface = new PolySet(oceanPolys);
PolySet sides = Inset(polygons, vertices, oceanSurface, 0.05f);
PolySet.ApplyColor(sides, oceanColor);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
// Time to return to the oceans.
sides = Extrude(polygons, vertices, oceanPolys, -0.02f);
PolySet.ApplyColor(sides, oceanColor);
sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
sides = Inset(polygons, vertices, oceanPolys, 0.02f);
PolySet.ApplyColor(sides, oceanColor);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
if (isGenerateDeepOceans)
{
var deepOceanPolys = PolySet.RemoveEdges(oceanPolys);
sides = Extrude(polygons, vertices, deepOceanPolys, -0.05f);
PolySet.ApplyColor(sides, deepOceanColor);
PolySet.ApplyColor(deepOceanPolys, deepOceanColor);
}
// Back to land for a while! We start by making it green. =)
PolySet.ApplyColor(landPolys, landColor);
// The Extrude function will raise the land Polygons up out of the water.
// It also generates a strip of new Polygons to connect the newly raised land
// back down to the water level. We can color this vertical strip of land brown like dirt.
sides = Extrude(polygons, vertices, landPolys, 0.05f);
PolySet.ApplyColor(sides, sideColor);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
if (isGenerateHills)
{
GenerateHills(polygons, vertices, landPolys, landColor, sideColor);
}
return(GenerateMesh("Ground Mesh", polygons, vertices));
}
public PolySet(PolySet source) : base(source)
{
}
public void Start()
{
// Create an icosahedron, subdivide it three times so that we have plenty of polys
// to work with.
InitAsIcosohedron();
Subdivide(4);
// When we begin extruding polygons, we'll need each one to know who its immediate
//neighbors are. Calculate that now.
CalculateNeighbors();
// By default, everything is colored blue. As we extrude land forms, we'll change their colors to match.
Color32 colorOcean = new Color32(0, 80, 220, 0);
Color32 colorGrass = new Color32(0, 220, 0, 0);
Color32 colorDirt = new Color32(180, 140, 20, 0);
Color32 colorDeepOcean = new Color32(0, 40, 110, 0);
foreach (Polygon p in m_Polygons)
{
p.m_Color = colorOcean;
}
// Now we build a set of Polygons that will become the land. We do this by generating
// randomly sized spheres on the surface of the planet, and adding any Polygon that falls
// inside that sphere.
PolySet landPolys = new PolySet();
PolySet sides;
// Grab polygons that are inside random spheres. These will be the basis of our planet's continents.
for (int i = 0; i < m_NumberOfContinents; i++)
{
float continentSize = Random.Range(m_ContinentSizeMin, m_ContinentSizeMax);
PolySet newLand = GetPolysInSphere(Random.onUnitSphere, continentSize, m_Polygons);
landPolys.UnionWith(newLand);
}
m_landPolys = landPolys;
// While we're here, let's make a group of oceanPolys. It's pretty simple: Any Polygon that isn't in the landPolys set
// must be in the oceanPolys set instead.
var oceanPolys = new PolySet();
foreach (Polygon poly in m_Polygons)
{
if (!landPolys.Contains(poly))
{
oceanPolys.Add(poly);
}
}
m_oceanPolys = oceanPolys;
// Let's create the ocean surface as a separate mesh.
// First, let's make a copy of the oceanPolys so we can
// still use them to also make the ocean floor later.
var oceanSurface = new PolySet(oceanPolys);
sides = Inset(oceanSurface, 0.05f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
if (m_OceanMesh != null)
{
Destroy(m_OceanMesh);
}
m_OceanMesh = GenerateMesh("Ocean Surface", m_OceanMaterial);
// Back to land for a while! We start by making it green. =)
//landPolys.ApplyRandomClanColors(colorBlueClan, colorRedClan);
landPolys.ApplyColor(colorGrass);
landPolys.ApplyTerritory(Territory.Neutral);
// The Extrude function will raise the land Polygons up out of the water.
// It also generates a strip of new Polygons to connect the newly raised land
// back down to the water level. We can color this vertical strip of land brown like dirt.
sides = Extrude(landPolys, 0.05f);
sides.ApplyColor(colorDirt);
sides.ApplyTerritory(Territory.Cliff);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
/*
* // Grab additional polygons to generate hills, but only from the set of polygons that are land.
*
* PolySet hillPolys = landPolys.RemoveEdges();
*
* sides = Inset(hillPolys, 0.03f);
* sides.ApplyRandomClanColors(colorBlueClan, colorRedClan);
* sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
*
* sides = Extrude(hillPolys, 0.05f);
* sides.ApplyColor(colorDirt);
*
* //Hills have dark ambient occlusion on the bottom, and light on top.
* sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
*/
// Time to return to the oceans.
sides = Extrude(oceanPolys, -0.02f);
sides.ApplyColor(colorOcean);
sides.ApplyTerritory(Territory.Ocean);
sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
sides = Inset(oceanPolys, 0.02f);
sides.ApplyColor(colorOcean);
sides.ApplyTerritory(Territory.Ocean);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
var deepOceanPolys = oceanPolys.RemoveEdges();
sides = Extrude(deepOceanPolys, -0.05f);
sides.ApplyColor(colorDeepOcean);
sides.ApplyTerritory(Territory.Ocean);
deepOceanPolys.ApplyColor(colorDeepOcean);
deepOceanPolys.ApplyTerritory(Territory.Ocean);
// Okay, we're done! Let's generate an actual game mesh for this planet.
if (m_GroundMesh != null)
{
Destroy(m_GroundMesh);
}
m_GroundMesh = GenerateMesh("Ground Mesh", m_GroundMaterial);
m_GroundMesh.AddComponent <ClickableTriangles>();
}
public void Start()
{
// Create an icosahedron, subdivide it three times so that we have plenty of polys
// to work with.
InitAsIcosohedron();
Subdivide(m_Subdivisions);
// When we begin extruding polygons, we'll need each one to know who its immediate
//neighbors are. Calculate that now.
CalculateNeighbors();
// By default, everything is colored blue. As we extrude land forms, we'll change their colors to match.
Color32 colorOcean = new Color32(0, 80, 220, 0);
Color32 colorGrass = new Color32(0, 220, 0, 0);
Color32 colorDirt = new Color32(180, 140, 20, 0);
Color32 colorDeepOcean = new Color32(0, 40, 110, 0);
foreach (Polygon p in m_Polygons)
{
p.m_Color = colorOcean;
}
// Now we build a set of Polygons that will become the land. We do this by generating
// randomly sized spheres on the surface of the planet, and adding any Polygon that falls
// inside that sphere.
PolySet landPolys = new PolySet();
PolySet sides;
// Grab polygons that are inside random spheres. These will be the basis of our planet's continents.
for (int i = 0; i < m_NumberOfContinents; i++)
{
float continentSize = Random.Range(m_ContinentSizeMin, m_ContinentSizeMax);
PolySet newLand = GetPolysInSphere(Random.onUnitSphere, continentSize, m_Polygons);
landPolys.UnionWith(newLand);
}
// While we're here, let's make a group of oceanPolys. It's pretty simple: Any Polygon that isn't in the landPolys set
// must be in the oceanPolys set instead.
var oceanPolys = new PolySet();
foreach (Polygon poly in m_Polygons)
{
if (!landPolys.Contains(poly))
{
oceanPolys.Add(poly);
}
}
// Let's create the ocean surface as a separate mesh.
// First, let's make a copy of the oceanPolys so we can
// still use them to also make the ocean floor later.
var oceanSurface = new PolySet(oceanPolys);
sides = Inset(oceanSurface, 0.05f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
if (m_OceanMesh != null)
{
Destroy(m_OceanMesh);
}
m_OceanMesh = GenerateMesh("Ocean Surface", m_OceanMaterial);
// Back to land for a while! We start by making it green. =)
foreach (Polygon landPoly in landPolys)
{
landPoly.m_Color = colorGrass;
}
// The Extrude function will raise the land Polygons up out of the water.
// It also generates a strip of new Polygons to connect the newly raised land
// back down to the water level. We can color this vertical strip of land brown like dirt.
sides = Extrude(landPolys, 0.05f);
sides.ApplyColor(colorDirt);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
// Grab additional polygons to generate hills, but only from the set of polygons that are land.
PolySet hillPolys = landPolys.RemoveEdges();
sides = Inset(hillPolys, 0.03f);
sides.ApplyColor(colorGrass);
sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
sides = Extrude(hillPolys, 0.05f);
sides.ApplyColor(colorDirt);
// Hills have dark ambient occlusion on the bottom, and light on top.
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
// Time to return to the oceans.
sides = Extrude(oceanPolys, -0.02f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
sides = Inset(oceanPolys, 0.02f);
sides.ApplyColor(colorOcean);
sides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
var deepOceanPolys = oceanPolys.RemoveEdges();
sides = Extrude(deepOceanPolys, -0.05f);
sides.ApplyColor(colorDeepOcean);
deepOceanPolys.ApplyColor(colorDeepOcean);
// Okay, we're done! Let's generate an actual game mesh for this planet.
if (m_GroundMesh != null)
{
Destroy(m_GroundMesh);
}
m_GroundMesh = GenerateMesh("Ground Mesh", m_GroundMaterial);
// Spawn in the trees.
Mesh groundMesh = m_GroundMesh.GetComponent <MeshFilter>().mesh;
Mesh oceanMesh = m_OceanMesh.GetComponent <MeshFilter>().mesh;
for (int i = 0; i < groundMesh.vertices.Length; ++i)
{
if (Random.value < m_TreeSpawnRate)
{
float randA = Random.value;
float randB = Random.value;
float randC = Random.value;
Vector3 pointA = groundMesh.vertices[groundMesh.triangles[i + 0]];
Vector3 pointB = groundMesh.vertices[groundMesh.triangles[i + 1]];
Vector3 pointC = groundMesh.vertices[groundMesh.triangles[i + 2]];
Vector3 randPoint = (randA * pointA + randB * pointB + randC * pointC) / (randA + randB + randC);
GameObject tree = Instantiate(m_Tree, randPoint, Quaternion.FromToRotation(Vector3.up, randPoint.normalized));
// Translate the tree so that it is not sticking into the ground.
tree.transform.Translate(new Vector3(0, 0.2f, 0), Space.Self);
if (oceanMesh.bounds.Intersects(tree.GetComponentInChildren <MeshFilter>().mesh.bounds))
{
// Destroy(tree);
}
}
}
}
public PlanetGenerator(GameObject _planet, Material m_GroundMaterial, Material m_OceanMaterial, bool withRocket)
{
planet = _planet;
if (!withRocket)
{
colorGrass = new Color32(99, 61, 72, 0);
colorDirt = new Color32(59, 30, 39, 0);
colorOcean = new Color32(26, 67, 92, 0);
colorDeepOcean = new Color32(11, 34, 48, 0);
}
landPolys = new PolySet();
m_Objects = new List <Polygon>();
// Create an icosahedron, subdivide it three times so that we have plenty of polys
// to work with.
InitAsIcosohedron();
Subdivide(3);
// When we begin extruding polygons, we'll need each one to know who its immediate
//neighbors are. Calculate that now.
CalculateNeighbors();
// By default, everything is colored blue. As we extrude land forms, we'll change their colors to match.
foreach (Polygon p in m_Polygons)
{
p.m_Color = colorOcean;
}
// Now we build a set of Polygons that will become the land. We do this by generating
// randomly sized spheres on the surface of the planet, and adding any Polygon that falls
// inside that sphere.
// Grab polygons that are inside random spheres. These will be the basis of our planet's continents.
for (int i = 0; i < m_NumberOfContinents; i++)
{
float continentSize = Random.Range(m_ContinentSizeMin, m_ContinentSizeMax);
Vector3 center = Random.onUnitSphere;
if (i == 0)
{
center.Set(-1, 0, 0);
}
PolySet newLand = GetPolysInSphere(center, continentSize, m_Polygons);
landPolys.UnionWith(newLand);
}
// While we're here, let's make a group of oceanPolys. It's pretty simple: Any Polygon that isn't in the landPolys set
// must be in the oceanPolys set instead.
var oceanPolys = new PolySet();
surfacePolys = new List <Polygon>();
foreach (Polygon poly in m_Polygons)
{
if (!landPolys.Contains(poly))
{
oceanPolys.Add(poly);
}
else
{
surfacePolys.Add(poly);
}
}
// Let's create the ocean surface as a separate mesh.
// First, let's make a copy of the oceanPolys so we can
// still use them to also make the ocean floor later.
// Back to land for a while! We start by making it green. =)
foreach (Polygon landPoly in landPolys)
{
landPoly.m_Color = colorGrass;
}
// The Extrude function will raise the land Polygons up out of the water.
// It also generates a strip of new Polygons to connect the newly raised land
// back down to the water level. We can color this vertical strip of land brown like dirt.
PolySet lowLandSides = Extrude(landPolys, 0.05f);
lowLandSides.ApplyColor(colorDirt);
lowLandSides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
// Grab additional polygons to generate hills, but only from the set of polygons that are land.
PolySet hillPolys = landPolys.RemoveEdges();
PolySet insetLandPolys = Inset(hillPolys, 0.03f);
insetLandPolys.ApplyColor(colorGrass);
insetLandPolys.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
PolySet topLandSides = Extrude(hillPolys, 0.05f);
topLandSides.ApplyColor(colorDirt);
//Hills have dark ambient occlusion on the bottom, and light on top.
topLandSides.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
landPolys.UnionWith(lowLandSides);
landPolys.UnionWith(insetLandPolys);
landPolys.UnionWith(topLandSides);
// Time to return to the oceans.
PolySet insetOceanPolys = Inset(oceanPolys, 0.05f);
insetOceanPolys.ApplyColor(colorOcean);
insetOceanPolys.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
PolySet highOceanSides = Extrude(oceanPolys, -0.02f);
highOceanSides.ApplyColor(colorOcean);
highOceanSides.ApplyAmbientOcclusionTerm(0.0f, 1.0f);
PolySet insetOceanPolys2 = Inset(oceanPolys, 0.02f);
insetOceanPolys2.ApplyColor(colorOcean);
insetOceanPolys2.ApplyAmbientOcclusionTerm(1.0f, 0.0f);
var deepOceanPolys = oceanPolys.RemoveEdges();
PolySet lowOceanSides = Extrude(deepOceanPolys, -0.05f);
lowOceanSides.ApplyColor(colorDeepOcean);
deepOceanPolys.ApplyColor(colorDeepOcean);
oceanPolys.UnionWith(insetOceanPolys);
oceanPolys.UnionWith(highOceanSides);
oceanPolys.UnionWith(insetOceanPolys2);
oceanPolys.UnionWith(lowOceanSides);
PolySet allPolys = new PolySet(oceanPolys);
allPolys.UnionWith(landPolys);
// Okay, we're done! Let's generate an actual game mesh for this planet.
for (int i = 0; i < m_Vertices.Count; i++)
{
m_Vertices[i] *= 0.1f;
m_Vertices[i] += planet.transform.position;
}
//GenerateMesh(planet, oceanPolys, "Ocean Mesh", m_OceanMaterial);
GenerateMesh(planet, allPolys, "Ground Mesh", m_GroundMaterial);
}
public void GenerateMesh(GameObject planet, PolySet terrianPolys, string name, Material material)
{
GameObject meshObject = new GameObject(name);
meshObject.transform.parent = planet.transform;
MeshRenderer surfaceRenderer = meshObject.AddComponent <MeshRenderer>();
surfaceRenderer.material = material;
Mesh terrainMesh = new Mesh();
int vertexCount = terrianPolys.Count * 3;
int[] indices = new int[vertexCount];
Vector3[] vertices = new Vector3[vertexCount];
Vector3[] normals = new Vector3[vertexCount];
Color32[] colors = new Color32[vertexCount];
Vector2[] uvs = new Vector2[vertexCount];
List <Polygon> polyList = terrianPolys.ToList();
for (int i = 0; i < polyList.Count; i++)
{
var poly = polyList[i];
indices[i * 3 + 0] = i * 3 + 0;
indices[i * 3 + 1] = i * 3 + 1;
indices[i * 3 + 2] = i * 3 + 2;
vertices[i * 3 + 0] = m_Vertices[poly.m_Vertices[0]];
vertices[i * 3 + 1] = m_Vertices[poly.m_Vertices[1]];
vertices[i * 3 + 2] = m_Vertices[poly.m_Vertices[2]];
uvs[i * 3 + 0] = poly.m_UVs[0];
uvs[i * 3 + 1] = poly.m_UVs[1];
uvs[i * 3 + 2] = poly.m_UVs[2];
colors[i * 3 + 0] = poly.m_Color;
colors[i * 3 + 1] = poly.m_Color;
colors[i * 3 + 2] = poly.m_Color;
if (poly.m_SmoothNormals)
{
normals[i * 3 + 0] = m_Vertices[poly.m_Vertices[0]].normalized;
normals[i * 3 + 1] = m_Vertices[poly.m_Vertices[1]].normalized;
normals[i * 3 + 2] = m_Vertices[poly.m_Vertices[2]].normalized;
}
else
{
Vector3 ab = m_Vertices[poly.m_Vertices[1]] - m_Vertices[poly.m_Vertices[0]];
Vector3 ac = m_Vertices[poly.m_Vertices[2]] - m_Vertices[poly.m_Vertices[0]];
Vector3 normal = Vector3.Cross(ab, ac).normalized;
normals[i * 3 + 0] = normal;
normals[i * 3 + 1] = normal;
normals[i * 3 + 2] = normal;
}
}
terrainMesh.vertices = vertices;
terrainMesh.normals = normals;
terrainMesh.colors32 = colors;
terrainMesh.uv = uvs;
terrainMesh.SetTriangles(indices, 0);
MeshFilter terrainFilter = meshObject.AddComponent <MeshFilter>();
terrainFilter.mesh = terrainMesh;
//string localPath = "Assets/" + "planet" + ".asset";
// Make sure the file name is unique, in case an existing Prefab has the same name.
//localPath = AssetDatabase.GenerateUniqueAssetPath(localPath);
//AssetDatabase.CreateAsset(terrainMesh, localPath);
//AssetDatabase.SaveAssets();
}
public void GeneratePlanet()
{
// Create an icosahedron, subdivide it three times so that we have plenty of polys
// to work with.
InitAsIcosohedron();
Subdivide(1);
// When we begin extruding polygons, we'll need each one to know who its immediate
//neighbors are. Calculate that now.
CalculateNeighbors();
// By default, everything is colored blue. As we extrude land forms, we'll change their colors to match.
Color32 colorOcean = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), 0);
Color32 colorGrass = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), 0);
Color32 colorDirt = new Color32((byte)Random.Range(0, 255), (byte)Random.Range(0, 255), (byte)Random.Range(0, 255), 0);
foreach (Polygon p in m_Polygons)
{
p.m_Color = colorOcean;
}
// Now we build a set of Polygons that will become the land. We do this by generating
// randomly sized spheres on the surface of the planet, and adding any Polygon that falls
// inside that sphere.
PolySet landPolys = new PolySet();
for (int i = 0; i < m_NumberOfContinents; i++)
{
float continentSize = Random.Range(m_ContinentSizeMin, m_ContinentSizeMax);
PolySet newLand = GetPolysInSphere(Random.onUnitSphere, continentSize, m_Polygons);
landPolys.UnionWith(newLand);
}
// This is our land now, so color it green. =)
foreach (Polygon landPoly in landPolys)
{
landPoly.m_Color = colorGrass;
}
// The Extrude function will raise the land Polygons up out of the water.
// It also generates a strip of new Polygons to connect the newly raised land
// back down to the water level. We can color this vertical strip of land brown like dirt.
PolySet sides = Extrude(landPolys, 0.05f);
foreach (Polygon side in sides)
{
side.m_Color = colorDirt;
}
// Grab additional polygons to generate hills, but only from the set of polygons that are land.
PolySet hillPolys = new PolySet();
for (int i = 0; i < m_NumberOfHills; i++)
{
float hillSize = Random.Range(m_HillSizeMin, m_HillSizeMax);
PolySet newHill = GetPolysInSphere(Random.onUnitSphere, hillSize, landPolys);
hillPolys.UnionWith(newHill);
}
sides = Extrude(hillPolys, 0.05f);
foreach (Polygon side in sides)
{
side.m_Color = colorDirt;
}
// Okay, we're done! Let's generate an actual game mesh for this planet.
GenerateMesh();
}