Abstract Camera movement

[DigitalHax]

Hey all,

 

I had a quick question about a technique used in quite a lot of games that I want to have a go at adding to mine. And that is abstract camera movement. Much like a person's head moving around to make it more realistic.

 

Now any suggestions on this? I have seen a few people around here achieve it. One person is franck22000, with his video in this post - http://www.leadwerks.com/werkspace/topic/4712-shadows-artifacts/

 

Any suggestions would be very helpful!

[Naughty Alien]

..this will give you nice walk camera feeling..i believe everything is self explanatory, but in any case, feel free to ask if there are issues..

 

..these are variables for control..

Global walking:Int = False 'are we walking or running

Global sp:Float =.08 'main walking speed (not connected with wobbling)

Global shoe_size:Float = 2.0 ' stepspeed for wobbling camera (eg. Higher Value=running, Smaller Value=walking , experiment yourself)

Global amplitude:Float

Global head_bang_X:Float = 0.09 ' amount of wobbling

Global head_bang_Y:Float = 0.07

Global move:TVec3 = Vec3(0)

Global myController:TController

Global camera:TCamera, camera_position:TVec3

Global footstep_needed:Int = False

 

..and these are functions you will use in your update cycle..

 

 

Function Move_Camera()

walking = False

If KeyDown(KEY_LEFT) Move = Vec3(-speed, 0, 0) ;walking = True

If KeyDown(KEY_RIGHT) Move = Vec3(speed, 0, 0) ;walking = True

If KeyDown(KEY_UP) Move = Vec3(0, 0, speed) ;walking = True

If KeyDown(KEY_DOWN) Move = Vec3(0, 0, -speed) ;walking = True

'here update your controller, if camera is attached to it

End Function

 

Function Wobble_Camera()

If walking amplitude = ((amplitude + shoe_size) Mod 360)

camera_position = Vec3((Cos(amplitude) * head_bang_X), (Sin(270 + (amplitude * 2)) * head_bang_Y), 0)

PositionEntity (camera, camera_position)

End Function

 

Function Play_Footstep_Sound()

If Sin(90 + (amplitude * 2)) < - 0.85

If footstep_needed

DrawText "Play a footstep sound here!", 50, 50

footstep_needed = False

EndIf

Else

footstep_needed = True

EndIf

End Function

 

 

..in your update, order of function calls should be :

 

Move_Camera()

Wobble_Camera()

Play_Footstep_Sound()

 

..I hope this helps...by adjusting some of the initial variables, you can have various motions..

[DigitalHax]

Aha thanks. I'll convert this to cpp and see if it works.

[dennis]

Headbobbing

[Naughty Alien]

hahahaah

[DigitalHax]

Ok, the only real thing I am not sure about is this line -

 

camera_position = Vec3((Cos(amplitude) * head_bang_X), (Sin(270 + (amplitude * 2)) * head_bang_Y), 0)

 

I don''t know how you would convert most of this line to cpp, especially with the Sin and Cos commands. Mostly because I am not sure what they do.

[Rick]

#include <math>

 

and you should have a cos() and sin() function.

[DigitalHax]

Ok thanks