how can I shake the screen !!

[stairhead]

how can I shake the screen !! like a earthquake or bomb attack !
thanks for advise ...

[X_Sheep]

Phizzy made this example:
http://phizzy.sitesled.com/tutorials/eathquake.mfa

[stairhead]

oh yes many thanks

[Nick]

I'm not sure how that example shows it, but you can do it by either randomizing x/y coordinates in the scrolling options, or alternatively the window control object, if the scrolling frame is right up against the edge.

[JoKa]

Or center the screen at 0,0 of a hidden object with weird path movement

[ChrisStreet]

Or you could pick up the monitor and shake it around a bit


Or... create a hidden active object, set it as the camera, give it various directions of animations and reposition the hot spot per animation...

The trouble with earthquake engines is that, for the screenshake to be completely effective you generally need to have the play area away from the frame edges, although it is possible using complex code to get it working somewhat.

[Mantis]

Yes, sadly it won't work like that if it's a non-scrolling frame; i.e. the frame size is the same size as the resolution.

[Nick]

As i stated before, you can screenshake with a non scrolling frame by using the Window Control object. Just edit the position of the frame inside the window, although this leaves a black border where "nothign" is around the frame.

People neglect the power of that object so much

[LazyCoder]

Set the frame size to about 20 pixels more than you'd need it.

Then have a couple of counter objects (1 for x, 1 for y, and 1 for shake), and call them:
ScreenX
ScreenY
Shake

If you have an 800x600 screen for example, something blows up on screen, then you set the shake to oh say 20, then you center the camera on (random(shake*2) + Screen ,(random(shake*2) + ScreenY). And you subract 1 from the Shake value until it is at 0. The more intense the action, the higher the shake value should be set to.

[Patrick]

hey, this is cool man! just what i was looking for!