How would I go in about making a moving platform move in a circular movement? Does it involve sinadd, or some sort of math? Does it need alterable values to do this?
I have a pretty much good understanding of normal moving platforms, making them move forwards/backwards, or upwards/downwards only. Now I want to learn how to give them advanced movements such as circular movements and what not.
Start of Frame:
Set Value A of Platform to (Position X of Platform)
Set Value B of Platform to (Position Y of Platform)
Always:
Set Position X of Platform to (Value A + Cos(Value C of Platform) * 50)
Set Position Y of Platform to (Value B - Sin(Value C of Platform) * 50)
Add 1 to Value C of Platform
Change "50" to whatever you want the radius to be
Like this?
This is not doing anything. X_X
A is X position, B is Y position, so what is C used for?
Oh wait, hang on.... I removed line/event #3 of this picture, and it started to move around.
Okay. I think it's going counter-clockwise motion. If I wanted to go into the opposite direction I change +Cos(C of Active) into -Cos(C of Active). Correct?
But I still don't know what Value C is. Is this the speed of the motion? When I changed add 1 to C to Add 5 to C, it seemed to speed up.
So now we have this object rotating in a circle. How do I get the player to move with it? Because my moving platform events don't seem to work with this as I'm doing a few quick tests.
Hey N64Mario ,
Just a thought, Have you seen this article by Dines http://www.clickteam.com/epicenter/ubbthreads.php?ubb=showflat&Number=67082#Post67082
It really helped me understand this very subject
The value C in this case is the "Angle" of the object- which direction it is pointing in at any given moment. By increasing the angle, it rotates. If you decrease the angle, it rotates in the opposite clockwise direction.
In order to get your player to move along with a platform, there is a rather simple approach you can use for *any* platform, regardless of how it moves:
http://create-games.com/article.asp?id=1979
What you do essentially is this:
1) Record the position of the platform
2) Move the platform
3) Move the player by the difference between the new position of the platform and the old position
That way the player will be moved the exact amount of pixels that the platform moved in any given frame and will always be exactly synced on top of it. The actual implementation of this might be a little tricky for you at first, but if you play around with it, you should be able to do it in no time at all.
Well...... I think I got the rotation down. I added the event 'foot detector' is overlapping platform. Every time my character lands on this platform, the player always disappears. X_X
I tried things like
'Set X position of [Player] to X("Player") + X("Platform")',
and things like
'add (A( "Center Active" )-Cos(C( "Rotating Platform" ))*50) to Pos X[Player]'.
So I don't know what I'm doing wrong.
Maybe try the Circular Movement that's built in?
Well.... For one thing, I'm using all static movement in my game.Originally Posted by Jaffob
Secondly, how will using built in circular movement help with the problem? It's just the same as what already has mentioned above. o_O
I guess I could put together a quick example
Actually found an example of exactly this already on my computer, so this might come in handy for you, if you can figure it out:
http://sites.google.com/site/claniraq/stuff/WaterWheel.mfa?attredirects=0&d=1
I remember these things. This thing reminds me of those little addictive hand held water-like games to make things move.
In any case, I tried other things like Set Pos X("Player") to (X( "Player" )+(A( "Center" )-Cos(C( "Platform" ))*50))/2, but that just centers the player on the platform, ala odd binding to it. The example you showed me is a bit much of what I had in mind.
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