public void Update(double elapsedTime, EntityManager entityManager)
{
foreach (var water in entityManager.GetEntitiesWithComponent <OceanComponent>())
{
var waterComponent = entityManager.GetComponent <OceanComponent>(water);
var waterMesh = entityManager.GetComponent <StaticMesh>(water);
if (waterMesh == null)
{
waterMesh = new StaticMesh
{
Color = new Vector4(0f, 0f, 1f, 0f),
ModelMatrix = Matrix4.Identity
};
entityManager.AddComponentToEntity(water, waterMesh);
}
var mesh = CreateMesh(waterComponent);
waterMesh.Update(mesh);
for (var i = 0; i < waterMesh.Mesh.Vertices.Length; i++)
{
var position = waterMesh.Mesh.Vertices[i].Position;
var vector3D = Gerstner2.CalculateWave((Vector3d)position, elapsedTime, _waveSettings);
waterMesh.Mesh.Vertices[i] = new Vertex3V3N
{
Position = (Vector3)vector3D
};
}
waterMesh.Mesh.CalculateNormals();
waterMesh.Update(waterMesh.Mesh);
}
}
private Node CreateNode(Box3D bounds, int level, EntityManager entityManager)
{
var mesh = MeshCreator.CreateXZGrid(10, 10);
var staticMesh = new StaticMesh
{
Color = new Vector4(0f, 0f, 1f, 1f),
ModelMatrix = Matrix4.Identity,
};
var size = bounds.Max - bounds.Min;
var mesh3V3N = mesh.Transformed(Matrix4.CreateScale((float)size.X, 1, (float)size.Z) * Matrix4.CreateTranslation((Vector3)bounds.Center));
var improvedPerlinNoise = new ImprovedPerlinNoise(4711);
for (int i = 0; i < mesh3V3N.Vertices.Length; i++)
{
var vertex = mesh3V3N.Vertices[i];
var height = improvedPerlinNoise.Noise(vertex.Position.X, vertex.Position.Z) * 0.2;
mesh3V3N.Vertices[i] = new Vertex3V3N
{
Normal = new Vector3(0, 1, 0),
Position = new Vector3(vertex.Position.X, (float)height, vertex.Position.Z)
};
}
staticMesh.Update(mesh3V3N);
var entity = new Entity(Guid.NewGuid().ToString());
entityManager.Add(entity);
entityManager.AddComponentToEntity(entity, staticMesh);
if (level == 0)
{
return(new Node(bounds, new Node[] { }, entity, 1));
}
var min = bounds.Min;
var max = bounds.Max;
var center = bounds.Center;
return(new Node(bounds,
new[]
{
CreateNode(new Box3D(bounds.Min, center), level - 1, entityManager),
CreateNode(new Box3D(new Vector3d(center.X, 0, min.Z), new Vector3d(max.X, 0, center.Z)), level - 1, entityManager),
CreateNode(new Box3D(new Vector3d(min.X, 0, center.Z), new Vector3d(center.X, 0, max.Z)), level - 1, entityManager),
CreateNode(new Box3D(center, max), level - 1, entityManager)
}, entity, Math.Pow(2, level)));
}
private Node CreateNode(Box3D bounds, int level, EntityManager entityManager)
{
var mesh = MeshCreator.CreateXZGrid(10, 10);
var staticMesh = new StaticMesh
{
Color = new Vector4(0f, 0f, 1f, 1f),
ModelMatrix = Matrix4.Identity,
};
var size = bounds.Max - bounds.Min;
var mesh3V3N = mesh.Transformed(Matrix4.CreateScale((float)size.X, 1, (float)size.Z) * Matrix4.CreateTranslation((Vector3)bounds.Center));
var improvedPerlinNoise = new ImprovedPerlinNoise(4711);
for (int i = 0; i < mesh3V3N.Vertices.Length; i++)
{
var vertex = mesh3V3N.Vertices[i];
var height = improvedPerlinNoise.Noise(vertex.Position.X, vertex.Position.Z) * 0.2;
mesh3V3N.Vertices[i] = new Vertex3V3N
{
Normal = new Vector3(0, 1, 0),
Position = new Vector3(vertex.Position.X, (float)height, vertex.Position.Z)
};
}
staticMesh.Update(mesh3V3N);
var entity = new Entity(Guid.NewGuid().ToString());
entityManager.Add(entity);
entityManager.AddComponentToEntity(entity, staticMesh);
if (level == 0)
{
return new Node(bounds, new Node[] { }, entity, 1);
}
var min = bounds.Min;
var max = bounds.Max;
var center = bounds.Center;
return new Node(bounds,
new[]
{
CreateNode(new Box3D(bounds.Min, center), level -1, entityManager),
CreateNode(new Box3D(new Vector3d(center.X, 0, min.Z), new Vector3d(max.X, 0, center.Z)), level -1, entityManager),
CreateNode(new Box3D(new Vector3d(min.X, 0, center.Z), new Vector3d(center.X, 0, max.Z)), level - 1, entityManager),
CreateNode(new Box3D(center, max), level - 1, entityManager)
}, entity, Math.Pow(2, level));
}
public void Update(double elapsedTime, EntityManager entityManager)
{
foreach (var entity in entityManager.GetEntitiesWithComponent <CubeMeshComponent>())
{
var mesh = entityManager.GetComponent <StaticMesh>(entity);
if (mesh == null)
{
var component = entityManager.GetComponent <CubeMeshComponent>(entity);
mesh = new StaticMesh();
mesh.ModelMatrix = component.Transform;
mesh.Color = new Vector4(0f, 0f, 1f, 1f);
mesh.Update(MeshCreator.CreateXZGrid(25, 25));
entityManager.AddComponentToEntity(entity, mesh);
}
}
}
private RenderableMesh EnsureResources(StaticMesh component)
{
if (!_allocatedResources.ContainsKey(component))
{
_allocatedResources[component] = _resourceAllocator.AllocateResourceFor(component.Mesh);
}
else
{
if (component.IsDirty)
{
var oldResources = _allocatedResources[component];
oldResources.Delete();
_allocatedResources[component] = _resourceAllocator.AllocateResourceFor(component.Mesh);
component.IsDirty = false;
}
}
return(_allocatedResources[component]);
}
private RenderableMesh EnsureResources(StaticMesh component)
{
if (!_allocatedResources.ContainsKey(component))
{
_allocatedResources[component] = _resourceAllocator.AllocateResourceFor(component.Mesh);
}
else
{
if (component.IsDirty)
{
var oldResources = _allocatedResources[component];
oldResources.Delete();
_allocatedResources[component] = _resourceAllocator.AllocateResourceFor(component.Mesh);
component.IsDirty = false;
}
}
return _allocatedResources[component];
}
public void Update(double elapsedTime, EntityManager entityManager)
{
foreach (var water in entityManager.GetEntitiesWithComponent<OceanComponent>())
{
var waterComponent = entityManager.GetComponent<OceanComponent>(water);
var waterMesh = entityManager.GetComponent<StaticMesh>(water);
if (waterMesh == null)
{
waterMesh = new StaticMesh
{
Color = new Vector4(0f, 0f, 1f, 0f),
ModelMatrix = Matrix4.Identity
};
entityManager.AddComponentToEntity(water, waterMesh);
}
var mesh = CreateMesh(waterComponent);
waterMesh.Update(mesh);
for (var i = 0; i < waterMesh.Mesh.Vertices.Length; i++)
{
var position = waterMesh.Mesh.Vertices[i].Position;
var vector3D = Gerstner2.CalculateWave((Vector3d)position, elapsedTime, _waveSettings);
waterMesh.Mesh.Vertices[i] = new Vertex3V3N
{
Position = (Vector3)vector3D
};
}
waterMesh.Mesh.CalculateNormals();
waterMesh.Update(waterMesh.Mesh);
}
}
public void GenerateMesh(StaticMesh staticMesh, int x, int y, float numberOfChunksX, float numberOfChunksY)
{
var offset = new Vector2(x, y);
var noiseGenerator = new ChunkNoiseGenerator(offset, _noise);
var heightMapGenerator = new HeightMapGenerator(noiseGenerator);
var mesh = heightMapGenerator.GenerateMesh();
var translationMatrix = Matrix4.CreateTranslation(offset.X - numberOfChunksX / 2.0f, 0, offset.Y - numberOfChunksY / 2.0f);
staticMesh.ModelMatrix = translationMatrix;
staticMesh.Color = _colorCycle.GetNext();
staticMesh.Update(mesh);
}