Diskusia – 17. diel - 3D bludisko v XNA - Instancujeme kolízne objekty
SpäťUpozorňujeme, že diskusie pod našimi online kurzami sú nemoderované a primárne slúžia na získavanie spätnej väzby pre budúce vylepšenie kurzov. Pre študentov našich rekvalifikačných kurzov ponúkame možnosť priameho kontaktu s lektormi a študijným referentom pre osobné konzultácie a podporu v rámci ich štúdia. Toto je exkluzívna služba, ktorá zaisťuje kvalitnú a cielenú pomoc v prípade akýchkoľvek otázok alebo projektov.
Tvůrce
Odpovedá na vodacek
magic44:11.3.2014 21:35
magic44:11.3.2014 21:35
Hm.. tak tady je snad vše co je potřeba k instancování, je tohe ale nějak moc.
public struct InstanceDataVertex:InstanceVertexType
{
public Matrix World;
public Color Color;
public InstanceDataVertex(Matrix world, Color color)
{
World = world;
Color = color;
}
VertexDeclaration IVertexType.VertexDeclaration
{
get { return InstanceDataVertex.VertexDeclaration; }
}
public readonly static VertexDeclaration VertexDeclaration = new VertexDeclaration(
new VertexElement(0, VertexElementFormat.Vector4, VertexElementUsage.TextureCoordinate, 3),
new VertexElement(sizeof(float) * 4, VertexElementFormat.Vector4, VertexElementUsage.TextureCoordinate, 4),
new VertexElement(sizeof(float) * 8, VertexElementFormat.Vector4, VertexElementUsage.TextureCoordinate, 5),
new VertexElement(sizeof(float) * 12, VertexElementFormat.Vector4, VertexElementUsage.TextureCoordinate, 6),
new VertexElement(sizeof(float) * 16, VertexElementFormat.Color, VertexElementUsage.Color, 0));
public static readonly int SizeInBytes = sizeof(float) * (16 + 4);
Matrix InstanceVertexType.GetWorld()
{
return World;
}
}public interface InstanceVertexType:IVertexType
{
Matrix GetWorld();
}public class InstancedModel3D<T>:Component where T : struct, InstanceVertexType
{
public string ModelName;
public Model Model;
protected VertexBuffer Verticles;
protected IndexBuffer Indicies;
protected Texture2D Texture;
protected DynamicVertexBuffer Primitives;
public int MaxCount;
public int Count;
protected List<T> PrimitiveList;
protected string effectName;
protected Effect Effect;
private readonly VertexBufferBinding[] binding = new VertexBufferBinding[2];
public InstancedModel3D(string nazev, int max, string effect)
{
ModelName = nazev;
MaxCount = max;
this.effectName = effect;
PrimitiveList = new List<T>(MaxCount);
}
protected override void Load()
{
Model = Parent.Engine.ContentManager.Load<Model>(ModelName);
Effect = Parent.Engine.ContentManager.Load<Effect>(effectName);
List<VertexPositionNormalTexture> vert = new List<VertexPositionNormalTexture>();
List<ushort> ind = new List<ushort>();
Matrix[] transforms = new Matrix[Model.Bones.Count];
Model.CopyAbsoluteBoneTransformsTo(transforms);
foreach (ModelMesh mesh in Model.Meshes)
{
foreach (ModelMeshPart part in mesh.MeshParts)
{
VertexPositionNormalTexture[] partVerts = new VertexPositionNormalTexture[part.VertexBuffer.VertexCount];
part.VertexBuffer.GetData(partVerts);
for (int i = 0; i < partVerts.Length; i++)
{
partVerts[i].Position = Vector3.Transform(partVerts[i].Position, transforms[mesh.ParentBone.Index]);
}
ushort[] partIndices = new ushort[part.IndexBuffer.IndexCount];
part.IndexBuffer.GetData(partIndices);
ind.AddRange(partIndices);
vert.AddRange(partVerts);
}
}
Verticles = new VertexBuffer(Parent.Engine.GraphicsDevice, VertexPositionNormalTexture.VertexDeclaration, vert.Count, BufferUsage.WriteOnly);
Verticles.SetData<VertexPositionNormalTexture>(vert.ToArray());
Indicies = new IndexBuffer(Parent.Engine.GraphicsDevice, IndexElementSize.SixteenBits, ind.Count, BufferUsage.WriteOnly);
Indicies.SetData<ushort>(ind.ToArray());
Texture = ((BasicEffect)Model.Meshes[0].Effects[0]).Texture;
binding[0] = new VertexBufferBinding(Verticles);
}
public override void Draw(Matrix View, Matrix Projection, Vector3 CameraPosition)
{
if (Primitives == null || Count == 0)
return;
Effect.Parameters["View"].SetValue(View);
Effect.Parameters["Projection"].SetValue(Projection);
//Effect.Parameters["TextureEnabled"].SetValue(Texture != null);
Effect.Parameters["Texture"].SetValue(Texture);
Effect.CurrentTechnique.Passes[0].Apply();
Parent.Engine.GraphicsDevice.SetVertexBuffers(binding);
Parent.Engine.GraphicsDevice.Indices = Indicies;
Parent.Engine.GraphicsDevice.DrawInstancedPrimitives(PrimitiveType.TriangleList, 0, 0, Verticles.VertexCount, 0, Indicies.IndexCount / 3, Count);
}
public virtual void Apply()
{
if (PrimitiveList.Count == 0)
return;
if (Primitives == null)
{
MaxCount = Math.Max(MaxCount, PrimitiveList.Count);
Primitives = new DynamicVertexBuffer(Parent.Engine.GraphicsDevice, PrimitiveList[0].VertexDeclaration, MaxCount, BufferUsage.None);
binding[1] = new VertexBufferBinding(Primitives, 0, 1);
}
if (MaxCount < PrimitiveList.Count)
{
MaxCount = PrimitiveList.Count;
Primitives = new DynamicVertexBuffer(Parent.Engine.GraphicsDevice, PrimitiveList[0].VertexDeclaration, MaxCount, BufferUsage.None);
binding[1] = new VertexBufferBinding(Primitives, 0, 1);
}
/*if (Primitives == null && PrimitiveList.Count > 0)
{
Primitives = new DynamicVertexBuffer(Parent.Engine.GraphicsDevice, PrimitiveList[0].VertexDeclaration, MaxCount, BufferUsage.None);
binding[1] = new VertexBufferBinding(Primitives, 0, 1);
}*/
Primitives.SetData<T>(PrimitiveList.ToArray(), 0, PrimitiveList.Count);
Count = PrimitiveList.Count;
}
public virtual void AddPrimitives(T obj)
{
PrimitiveList.Add(obj);
}
public virtual void RemovePrimitives(T obj)
{
PrimitiveList.Remove(obj);
}
}public class CollidableInstanceModel3D<T>: InstancedModel3D<T> where T: struct, InstanceVertexType
{
MultipleBoxCillisionSkin Skin;
protected BoundingBox Box;
public CollidableInstanceModel3D(string model, int max, string effect)
: base(model, max, effect)
{
Skin = new MultipleBoxCillisionSkin();
}
protected override void Load()
{
base.Load();
Matrix[] transformace = new Matrix[Model.Bones.Count];
Model.CopyAbsoluteBoneTransformsTo(transformace);
Box = Utility.VypoctiBountingBox(Model, transformace);
foreach (T obj in PrimitiveList)
{
Skin.AddBox(Utility.Transform(Box, obj.GetWorld()));
}
}
public override void OnAdded()
{
base.OnAdded();
if (Parent is CollidableGameScreen)
{
CollidableGameScreen cg = Parent as CollidableGameScreen;
cg.CollisionManager.AddBox(Skin);
}
}
public override void OnRemoved(GameScreen okno)
{
base.OnRemoved(okno);
if (okno is CollidableGameScreen)
{
CollidableGameScreen o=okno as CollidableGameScreen;
o.CollisionManager.RemoveBox(Skin);
}
}
public override void AddPrimitives(T obj)
{
base.AddPrimitives(obj);
if (!Loaded)
Skin.AddBox(Utility.Transform(Box, obj.GetWorld()));
}
public override void RemovePrimitives(T obj)
{
int id = PrimitiveList.IndexOf(obj);
base.RemovePrimitives(obj);
Skin.RemoveBox(id);
}
}public class MultipleBoxCillisionSkin:CollisionSkin
{
protected List<BoundingBox> Boxes;
BoundingBox Box;
public MultipleBoxCillisionSkin()
{
Boxes = new List<BoundingBox>();
}
public void AddBox(BoundingBox b)
{
Boxes.Add(b);
}
public void RemoveBox(int index)
{
Boxes.RemoveAt(index);
}
public override bool Intersects(BoundingSphere sp)
{
foreach (BoundingBox b in Boxes)
{
if (b.Intersects(sp))
return true;
}
return false;
}
public override void Draw()
{
foreach (BoundingBox b in Boxes)
{
BoundingRenderer.Render(b, Manager.Parent.Kamera.View, Manager.Parent.Kamera.Projection, LastCollision ? Color.Red : Color.Black);
}
}
public override void Transform(Vector3 Meritko, Vector3 Pozice, Matrix Rotace)
{
}
}
Odpovedá na vodacek
magic44:11.3.2014 22:51
magic44:11.3.2014 22:51
Myslíš, to když je kolize, tak jsou červený? Ne ty se mi nezobrazujou, ale mě se nikdy nezobrazovali ani u CollidableModel3D a ten funguje.
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