mirror of
https://mirror.ghproxy.com/https://github.com/dexyfex/CodeWalker
synced 2024-11-26 08:52:52 +08:00
382 lines
14 KiB
C#
382 lines
14 KiB
C#
using SharpDX;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace CodeWalker.World
|
|
{
|
|
public class Camera
|
|
{
|
|
public Vector3 TargetRotation = Vector3.Zero;
|
|
public Vector3 CurrentRotation = Vector3.Zero;
|
|
public float Smoothness;// 10.0f;//0.15f;
|
|
public float Sensitivity;// 0.005f;
|
|
public float TargetDistance = 1.0f;
|
|
public float CurrentDistance = 1.0f;
|
|
public float ZoomCurrentTime = 0.0f;
|
|
public float ZoomTargetTime = 2.0f;
|
|
public float ZoomVelocity = 0.0f;
|
|
public float ZoomSpeed = 0.1f;
|
|
public float Width = 1920.0f;
|
|
public float Height = 1080.0f;
|
|
public float FieldOfView;// 1.0f;
|
|
public float FieldOfViewFactor = 0.5f / (float)Math.Tan(/*FieldOfView*/ 1.0f * 0.5f);
|
|
public float AspectRatio = 1920.0f / 1080.0f;
|
|
public float ZNear = 0.01f;
|
|
public float ZFar = 100000.0f;
|
|
public Entity FollowEntity = null;
|
|
public Vector3 LocalLookAt = Vector3.ForwardLH;
|
|
public float VOffset = 0.0f;
|
|
public bool UpdateProj = true;
|
|
public bool IsMapView = false;
|
|
public bool IsOrthographic = false;
|
|
public float OrthographicSize = 20.0f;
|
|
public float OrthographicTargetSize = 20.0f;
|
|
public Matrix ProjMatrix = Matrix.Identity;
|
|
public Vector3 Position = Vector3.Zero;
|
|
public Vector3 UpDirection = Vector3.Up;
|
|
public Vector3 ViewDirection = Vector3.ForwardLH;
|
|
public Quaternion ViewQuaternion = Quaternion.Identity;
|
|
public Quaternion ViewInvQuaternion = Quaternion.Identity;
|
|
public Matrix ViewMatrix = Matrix.Identity;
|
|
public Matrix ViewInvMatrix = Matrix.Identity;
|
|
public Matrix ViewProjMatrix = Matrix.Identity;
|
|
public Matrix ViewProjInvMatrix = Matrix.Identity;
|
|
public Frustum ViewFrustum = new Frustum();
|
|
public Vector3 MouseRayNear = Vector3.Zero;
|
|
public Vector3 MouseRayFar = Vector3.Zero;
|
|
public Ray MouseRay;
|
|
private float MouseX = 0;
|
|
private float MouseY = 0;
|
|
private object syncRoot = new object();
|
|
|
|
|
|
public Camera(float smoothness, float sensitivity, float fov)
|
|
{
|
|
Smoothness = smoothness;
|
|
Sensitivity = sensitivity;
|
|
FieldOfView = fov;
|
|
FieldOfViewFactor = 0.5f / (float)Math.Tan(FieldOfView * 0.5f);
|
|
}
|
|
|
|
|
|
public void SetMousePosition(int x, int y)
|
|
{
|
|
MouseX = (x / Width) * 2.0f - 1.0f;
|
|
MouseY = (y / Height) * -2.0f + 1.0f;
|
|
}
|
|
|
|
public void SetFollowEntity(Entity e)
|
|
{
|
|
FollowEntity = e;
|
|
}
|
|
|
|
public void Update(float elapsed)
|
|
{
|
|
lock (syncRoot)
|
|
{
|
|
UpdateFollow(elapsed);
|
|
if (UpdateProj) UpdateProjMatrix();
|
|
|
|
//float mx = (LastMouseX / Width) * 2.0f;
|
|
//float my = (LastMouseY / Height) * -2.0f;
|
|
|
|
////MousedItem = nullptr;
|
|
////MousedThing = nullptr;
|
|
////MousedItemSpace = nullptr;
|
|
|
|
UpdateProjection();//, mx, my);
|
|
}
|
|
}
|
|
private void UpdateFollow(float elapsed)
|
|
{
|
|
const float ythresh = 1.55f;
|
|
const float nythresh = -1.55f;
|
|
Vector3 up = Vector3.Up;// new Vector3(0.0f, 1.0f, 0.0f);
|
|
if (TargetRotation.Y > ythresh) TargetRotation.Y = ythresh;
|
|
if (TargetRotation.Y < nythresh) TargetRotation.Y = nythresh;
|
|
float sv = Math.Min(Smoothness * elapsed, 1.0f);
|
|
CurrentRotation = CurrentRotation + ((TargetRotation - CurrentRotation) * sv);
|
|
|
|
if (TargetDistance > 11000.0f) TargetDistance = 11000.0f; //11km max zoom dist
|
|
if (TargetDistance < 0.0001f) TargetDistance = 0.0001f; //0.1mm min zoom dist...
|
|
ZoomCurrentTime += elapsed;
|
|
if (ZoomCurrentTime > ZoomTargetTime) ZoomCurrentTime = ZoomTargetTime;
|
|
float currentTime = ZoomCurrentTime / ZoomTargetTime;
|
|
float deltaDist = TargetDistance - CurrentDistance;
|
|
if (currentTime < 1.0f && deltaDist > 0.0f)
|
|
{
|
|
//TODO: when to properly reset ZoomCurrentTime?
|
|
float y = currentTime*currentTime*currentTime; //powf(currentTime, 3.0f);
|
|
deltaDist *= y;
|
|
}
|
|
CurrentDistance = CurrentDistance + deltaDist * ZoomSpeed;
|
|
|
|
if (IsOrthographic || IsMapView)
|
|
{
|
|
if (OrthographicTargetSize > 20000.0f) OrthographicTargetSize = 20000.0f;
|
|
if (OrthographicTargetSize < 1.0f) OrthographicTargetSize = 1.0f;
|
|
OrthographicSize = OrthographicSize + ((OrthographicTargetSize - OrthographicSize) * sv);
|
|
UpdateProj = true;
|
|
}
|
|
|
|
|
|
|
|
|
|
if (IsMapView)
|
|
{
|
|
//in map view, need a constant view matrix aligned to XY.
|
|
|
|
Vector3 cpos = new Vector3();
|
|
if (FollowEntity != null)
|
|
{
|
|
cpos = FollowEntity.Position;
|
|
}
|
|
LocalLookAt = Vector3.Zero;
|
|
Position = cpos;
|
|
//Position.Z = 1000.0f;
|
|
ViewDirection = -Vector3.UnitZ;
|
|
UpDirection = Vector3.UnitY;
|
|
}
|
|
else
|
|
{
|
|
//normal view mode
|
|
|
|
Vector3 rdir = new Vector3();
|
|
float cryd = (float)Math.Cos(CurrentRotation.Y);
|
|
rdir.X = -(float)Math.Sin(-CurrentRotation.X) * cryd;
|
|
rdir.Z = -(float)Math.Cos(-CurrentRotation.X) * cryd;
|
|
rdir.Y = (float)Math.Sin(CurrentRotation.Y);
|
|
Vector3 lookat = new Vector3(0.0f, VOffset, 0.0f);
|
|
Vector3 cpos = new Vector3();
|
|
if (FollowEntity != null)
|
|
{
|
|
up = FollowEntity.Orientation.Multiply(up);
|
|
lookat = FollowEntity.Orientation.Multiply(lookat);
|
|
rdir = FollowEntity.Orientation.Multiply(rdir);
|
|
cpos = FollowEntity.Position;
|
|
}
|
|
LocalLookAt = (rdir * CurrentDistance) + lookat;
|
|
Position = cpos + LocalLookAt;
|
|
ViewDirection = Vector3.Normalize(-rdir);
|
|
UpDirection = up;
|
|
}
|
|
|
|
|
|
//M16FLookAt(LocalProjection.ViewMatrix, V3F(0.0f, 0.0f, 0.0f), LocalProjection.ViewDirection, LocalProjection.UpDirection);
|
|
ViewQuaternion = Quaternion.LookAtRH(Vector3.Zero, ViewDirection, UpDirection);
|
|
ViewInvQuaternion = Quaternion.Invert(ViewQuaternion);
|
|
ViewMatrix = ViewQuaternion.ToMatrix();
|
|
ViewInvMatrix = Matrix.Invert(ViewMatrix);
|
|
|
|
}
|
|
private void UpdateProjMatrix()
|
|
{
|
|
if (IsMapView)
|
|
{
|
|
ProjMatrix = Matrix.OrthoRH(AspectRatio * OrthographicSize, OrthographicSize, 3000.0f, 1.0f);
|
|
}
|
|
else if (IsOrthographic)
|
|
{
|
|
ProjMatrix = Matrix.OrthoRH(AspectRatio * OrthographicSize, OrthographicSize, ZFar, ZNear);
|
|
}
|
|
else
|
|
{
|
|
ProjMatrix = Matrix.PerspectiveFovRH(FieldOfView, AspectRatio, ZFar, ZNear);
|
|
}
|
|
//ProjMatrix._33/=ZFar;
|
|
//ProjMatrix._43/=ZFar;
|
|
UpdateProj = false;
|
|
}
|
|
private void UpdateProjection() //CameraSpaceProjection& p, float mx, float my)
|
|
{
|
|
float mx = MouseX;
|
|
float my = MouseY;
|
|
ViewProjMatrix = Matrix.Multiply(ViewMatrix, ProjMatrix);
|
|
ViewProjInvMatrix = Matrix.Invert(ViewProjMatrix);
|
|
MouseRayNear = ViewProjInvMatrix.MultiplyW(new Vector3(mx, my, 1.0f));
|
|
MouseRayFar = ViewProjInvMatrix.MultiplyW(new Vector3(mx, my, 0.0f));
|
|
MouseRay.Position = Vector3.Zero;
|
|
MouseRay.Direction = Vector3.Normalize(MouseRayFar - MouseRayNear);
|
|
if (IsMapView || IsOrthographic)
|
|
{
|
|
MouseRay.Position = MouseRayNear;
|
|
}
|
|
ViewFrustum.Update(ref ViewProjMatrix);
|
|
ViewFrustum.Position = Position;
|
|
}
|
|
private void UpdateMousedItem()
|
|
{
|
|
//////MousedItem = nullptr;
|
|
//////MousedThing = nullptr;
|
|
//////MousedItemSpace = nullptr;
|
|
////int i = 0;
|
|
//////var cp = &SpaceProjections[i++];
|
|
//////auto item = cp->MousedItem;
|
|
//////auto thing = cp->MousedThing;
|
|
////auto count = cp->MouseTestedItems;
|
|
//////while((item==nullptr) && (thing==nullptr) && (i<SpaceProjections.size()))
|
|
////Moused.Clear();
|
|
////if (cp->Moused.HasValue) Moused.Set(cp->Moused);
|
|
////while (!Moused.HasValue && (i < SpaceProjections.size()))
|
|
////{
|
|
//// cp = &SpaceProjections[i++];
|
|
//// //item = cp->MousedItem;
|
|
//// //thing = cp->MousedThing;
|
|
//// if (cp->Moused.HasValue)
|
|
//// {
|
|
//// Moused.Set(cp->Moused);
|
|
//// }
|
|
//// count += cp->MouseTestedItems;
|
|
////}
|
|
//////if((item!=nullptr) || (thing!=nullptr))
|
|
//////{
|
|
////// MousedItem = item;
|
|
////// MousedThing = thing;
|
|
////// MousedItemSpace = cp->MousedItemSpace;
|
|
//////}
|
|
}
|
|
public void OnWindowResize(int w, int h)
|
|
{
|
|
lock (syncRoot)
|
|
{
|
|
Width = (float)w;
|
|
Height = (float)h;
|
|
AspectRatio = Width / Height;
|
|
UpdateProj = true;
|
|
}
|
|
}
|
|
|
|
public void ControllerRotate(float x, float y, float elapsed)
|
|
{
|
|
lock (syncRoot)
|
|
{
|
|
TargetRotation.X += x*elapsed;
|
|
TargetRotation.Y += y*elapsed;
|
|
}
|
|
}
|
|
|
|
public void ControllerZoom(float z)
|
|
{
|
|
lock (syncRoot)
|
|
{
|
|
float v = (z < 0) ? (1.0f - z) : (z > 0) ? (1.0f / (1.0f + z)) : 1.0f;
|
|
TargetDistance *= v;
|
|
OrthographicTargetSize *= v;
|
|
}
|
|
}
|
|
|
|
public void MouseRotate(int x, int y)
|
|
{
|
|
lock (syncRoot)
|
|
{
|
|
TargetRotation.X += x * Sensitivity;
|
|
TargetRotation.Y += y * Sensitivity;
|
|
}
|
|
}
|
|
|
|
public void MouseZoom(int z)
|
|
{
|
|
lock (syncRoot)
|
|
{
|
|
float v = (z < 0) ? 1.1f : (z > 0) ? 1.0f / 1.1f : 1.0f;
|
|
TargetDistance *= v;
|
|
OrthographicTargetSize *= v;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
public class Frustum
|
|
{
|
|
public Plane[] Planes = new Plane[6];
|
|
public Vector3 Position;
|
|
|
|
public void Update(ref Matrix vp)
|
|
{
|
|
//left, right, top, bottom, near, far
|
|
Planes[0] = Plane.Normalize(new Plane((vp.M14 + vp.M11), (vp.M24 + vp.M21), (vp.M34 + vp.M31), (vp.M44 + vp.M41)));
|
|
Planes[1] = Plane.Normalize(new Plane((vp.M14 - vp.M11), (vp.M24 - vp.M21), (vp.M34 - vp.M31), (vp.M44 - vp.M41)));
|
|
Planes[2] = Plane.Normalize(new Plane((vp.M14 - vp.M12), (vp.M24 - vp.M22), (vp.M34 - vp.M32), (vp.M44 - vp.M42)));
|
|
Planes[3] = Plane.Normalize(new Plane((vp.M14 + vp.M12), (vp.M24 + vp.M22), (vp.M34 + vp.M32), (vp.M44 + vp.M42)));
|
|
Planes[4] = Plane.Normalize(new Plane((vp.M14 - vp.M13), (vp.M24 - vp.M23), (vp.M34 - vp.M33), (vp.M44 - vp.M43)));
|
|
Planes[5] = Plane.Normalize(new Plane((vp.M13), (vp.M23), (vp.M33), 0.0f));//(vp.M43));
|
|
}
|
|
|
|
//public bool ContainsSphere(ref Vector3 c, float cls, float r)
|
|
//{
|
|
// //cls = c length squared, for optimization
|
|
// if (cls < (r * r))
|
|
// {
|
|
// return true; //frustrum center is in the sphere
|
|
// }
|
|
// float nr = -r;
|
|
// for (int i = 0; i < 6; i++)
|
|
// {
|
|
// if (Plane.DotCoordinate(Planes[i], c) < nr)
|
|
// {
|
|
// return false;
|
|
// }
|
|
// }
|
|
// return true;
|
|
//}
|
|
public bool ContainsSphereNoClipNoOpt(ref Vector3 c, float r)
|
|
{
|
|
float nr = -r;
|
|
for (int i = 0; i < 5; i++)
|
|
{
|
|
if (Plane.DotCoordinate(Planes[i], c) < nr)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
public bool ContainsAABBNoClip(ref Vector3 cen, ref Vector3 e)
|
|
{
|
|
var c = cen - Position;
|
|
for (int i = 0; i < 5; i++)
|
|
{
|
|
var pn = Planes[i].Normal;
|
|
var d = (c.X * pn.X) + (c.Y * pn.Y) + (c.Z * pn.Z); //Vector3.Dot(c, pn);//
|
|
var r = (e.X * (pn.X > 0 ? pn.X : -pn.X)) + (e.Y * (pn.Y > 0 ? pn.Y : -pn.Y)) + (e.Z * (pn.Z > 0 ? pn.Z : -pn.Z)); //Vector3.Dot(e, pn.Abs()); //
|
|
if ((d + r) < 0) return false;
|
|
}
|
|
return true;
|
|
}
|
|
public bool ContainsAABBNoClipNoOpt(ref Vector3 bmin, ref Vector3 bmax)
|
|
{
|
|
var c = (bmax + bmin) * 0.5f - Position;
|
|
var e = (bmax - bmin) * 0.5f;
|
|
for (int i = 0; i < 5; i++)
|
|
{
|
|
var pd = Planes[i].D;
|
|
var pn = Planes[i].Normal;
|
|
var d = (c.X * pn.X) + (c.Y * pn.Y) + (c.Z * pn.Z);
|
|
var r = (e.X * (pn.X > 0 ? pn.X : -pn.X)) + (e.Y * (pn.Y > 0 ? pn.Y : -pn.Y)) + (e.Z * (pn.Z > 0 ? pn.Z : -pn.Z));
|
|
if ((d + r) < -pd) return false;
|
|
//if ((d - r) < -pd) ; //intersecting
|
|
}
|
|
return true;
|
|
}
|
|
public bool ContainsAABBNoFrontClipNoOpt(ref Vector3 bmin, ref Vector3 bmax)
|
|
{
|
|
var c = (bmax + bmin) * 0.5f - Position;
|
|
var e = (bmax - bmin) * 0.5f;
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
var pd = Planes[i].D;
|
|
var pn = Planes[i].Normal;
|
|
var d = (c.X * pn.X) + (c.Y * pn.Y) + (c.Z * pn.Z);
|
|
var r = (e.X * (pn.X > 0 ? pn.X : -pn.X)) + (e.Y * (pn.Y > 0 ? pn.Y : -pn.Y)) + (e.Z * (pn.Z > 0 ? pn.Z : -pn.Z));
|
|
if ((d + r) < -pd) return false;
|
|
//if ((d - r) < -pd) ; //intersecting
|
|
}
|
|
return true;
|
|
}
|
|
|
|
}
|
|
}
|