CODEWITHSUNDEEP
c#xnaxna-4.0
Doron Muzar
Doron Muzar

Reputation: 443

I tried to make the camera to move the same way in first person game but its not moving why?

This is my Game1.cs code i marked the areas of the camera movement code parts: Added the camera code in my Game1.cs i used the riemers tutorials camera code here:

http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series4/Mouse_camera.php

I also tried the code in the bottom by user31911 but same results the camera pointer/cursor is dancing/shaking in the middle and not responding.

Im trying to use the Camera class to move the camera around using the mouse.

http://pastebin.com/SF3iiftq

In the constructor i have this line:

viewMatrix = Matrix.CreateLookAt(cameraPosition, cameraFinalTarget, cameraRotatedUpVector);

If i use this line instead assign the viewMatrix variable later in my code then i dont see the terrain at all.

And the big main problem is that the mouse is not responding at all what i get is the mouse pointer dancing/shaking in the middle. The only thing that responding is my ProcessInput method i did the keys there are working but the method ProcessInputCamera the kkeys and mouse there are not resopnding when im moving the camera the mouse cursor is shaking/dancing in the middle.

I can't figure out why it happen.

But the mouse is not moving the camera.

Upvotes: 0

Views: 215

Answers (1)

user31911
user31911

Reputation: 76

Pls edit your Question! There are to many unnecessary informations...

here is my camera (1st person) class

class Camera 
{ // up in here normal needed vars
public Vector3 cameraPosition; 
public float moveSpeed, rotateSpeed; 

public bool playing = true; 

public GraphicsDevice device; 

public Matrix view, projection; 

Matrix rotation; 

float yaw = 0; 
float pitch = 0; 

int oldX, oldY; 

public Camera(Vector3 cameraPosition, float moveSpeed, float rotateSpeed, float filedOfView, GraphicsDevice device, float PerspectiveFieldOfView) 
{ 
this.cameraPosition = cameraPosition; 
this.moveSpeed = moveSpeed; 
this.rotateSpeed = rotateSpeed; 

this.device = device; 

view = Matrix.CreateLookAt(cameraPosition, Vector3.Zero, Vector3.Up); 
projection =  Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(PerspectiveFieldOfView), device.Viewport.AspectRatio, 0.1f, filedOfView); 

ResetMouseCursor(); 
} 

public void Update() 
{ 
KeyboardState kState = Keyboard.GetState(); // make is able to use your keys
Vector3 v = new Vector3(0, 0, -50) * moveSpeed; // let you permanent walk 
move(v);                                        // isnt essential could be deleted if you wont that
} 

if (kState.IsKeyDown(Keys.W)) 
{ 
Vector3 v = new Vector3(0, 0, -100) * moveSpeed; 
move(v); 
} 

if (kState.IsKeyDown(Keys.S)) 
{ 
Vector3 v = new Vector3(0, 0, 50) * moveSpeed; 
 move(v); 
} 

if (kState.IsKeyDown(Keys.A)) 
{ 
Vector3 v = new Vector3(-50, 0, 0) * moveSpeed; 
 move(v); 
 projection = Matrix. 
 } 

if (kState.IsKeyDown(Keys.D)) 
{ 
Vector3 v = new Vector3(50, 0, 0) * moveSpeed; 
move(v); 
} 

pitch = MathHelper.Clamp(pitch, -1.5f, 1.5f); 
MouseState mState = Mouse.GetState(); 

int dx = mState.X - oldX;      /* is for turning you objekt / camera
yaw -= rotateSpeed * dx;        *
                                *
int dy = mState.Y - oldY;       *
pitch -= rotateSpeed * dy;      */

ResetMouseCursor();          // this makes your mouse "dancing" in the middle

UpdateMatrices(); 
} 

private void ResetMouseCursor() // mouse settings for the camera
{ 
int centerX = device.Viewport.Width / 2; 
int centerY = device.Viewport.Height / 2; 
Mouse.SetPosition(centerX, centerY); 
oldX = centerX; 
oldY = centerY; 
} 

private void UpdateMatrices() //standart camera things
{ 
rotation = Matrix.CreateRotationY(yaw) * Matrix.CreateRotationX(pitch); 
Vector3 transformedReference = Vector3.Transform(new Vector3(0, 0, -1), rotation); 
Vector3 lookAt = cameraPosition + transformedReference; 

view = Matrix.CreateLookAt(cameraPosition, lookAt, Vector3.Up); 
} 

public void move(Vector3 v) // is the self programmed method to let you move
{ 
Matrix yRotation = Matrix.CreateRotationY(yaw); 
v = Vector3.Transform(v, yRotation); 

cameraPosition += v; 
} 

}

It's pretty standart, but good. In most cases this class is all you need for the Camera and it's configuration. Rewrite/Fix it, like however you need it...

Tipp: You could also consider a Arc-Ball-Cam..

Upvotes: 1

Related Questions