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Author Topic: Platform Exploration Project > Demo H  (Read 9785 times)

Armok

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Re: Platform Exploration Project > Futility
« Reply #15 on: June 30, 2010, 09:16:05 am »

whats wrong with polygons?
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Outcast Orange

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Re: Platform Exploration Project > Futility
« Reply #16 on: June 30, 2010, 03:40:48 pm »

If they are moving too fast, they go through each other.
And by too fast, I mean fast enough to pass one of the shape boundaries.
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Burried Houses - Platform Explorer Demo H - Cloud Scream

Armok

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Re: Platform Exploration Project > Futility
« Reply #17 on: June 30, 2010, 07:11:37 pm »

thats not a good enoguth reason to go all rectangles.
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Outcast Orange

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Re: Platform Exploration Project > Futility
« Reply #18 on: June 30, 2010, 07:25:23 pm »

You didn't bother to offer an alternative.

I don't know the math for polygon containment and predicted paths.
Rectangles are far easier to deal with in those respects.
They are just boxes.
No angles, no diagonal distances, just algebra.
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Burried Houses - Platform Explorer Demo H - Cloud Scream

Siquo

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Re: Platform Exploration Project > Futility
« Reply #19 on: July 01, 2010, 02:55:55 am »

You could use both. Check outer rectangle that contains the whole polygon. Did it hit? Start checking polygon. If polygon is a miss, check inner rectangle (contained by the polygon) to check for overshoots. Still a miss? then you either hit a small corner that the polycheck missed, or you missed it completely. Not failsafe but better than just rectangles.
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This one thread is mine. MIIIIINE!!! And it will remain a happy, friendly, encouraging place, whether you lot like it or not. 
will rena,eme sique to sique sxds-- siquo if sucessufil
(cant spel siqou a. every speling looks wroing (hate this))

Armok

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Re: Platform Exploration Project > Futility
« Reply #20 on: July 01, 2010, 05:25:48 am »

you had a wiki page for the math.
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Outcast Orange

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Re: Platform Exploration Project > Futility
« Reply #21 on: July 01, 2010, 07:32:42 am »

I improvised slightly.

That page uses matrix transformation.
I don't understand the math behind that, so I didn't even try coding it.

Point vs Segment
 Here is how mine works:

Point A and line segment L M

If A is within rectangle L M,

and Slope( A L ) ~= Slope( L M )     << Genius (but not mine)

Point A contacts segment L M at A.

Not only do you know that there is a collision, but WHERE.
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Burried Houses - Platform Explorer Demo H - Cloud Scream

Armok

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Re: Platform Exploration Project > Futility
« Reply #22 on: July 01, 2010, 08:00:35 am »

OO, you CANNOT expect to program something like this without being prepared to learn some new math.
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eerr

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Re: Platform Exploration Project > Futility
« Reply #23 on: July 01, 2010, 09:46:25 am »

Maybe it's safer to stay in the realm of easy math?
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Outcast Orange

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Re: Platform Exploration Project > Futility
« Reply #24 on: July 02, 2010, 01:45:42 pm »

Meow!

After retreating into the realm of rectangle constructions, I've made some awesome progress.

Using composite objects, I can make a variety of boxy creations.

Here are some screens:

Spoiler (click to show/hide)

Take note that those two tiny squares are part of the same object, and move together.

See how they can fall on either side of the pole-tree-thing and not collide with it?

The movement and jumping seem decent enough, but I need to fix a few flaws.
I'll throw out a running demo once it's more polished.
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Burried Houses - Platform Explorer Demo H - Cloud Scream

Org

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Re: Platform Exploration Project > Rectangles
« Reply #25 on: July 02, 2010, 01:54:56 pm »

Nice.
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Outcast Orange

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Re: Platform Exploration Project > Rectangles
« Reply #26 on: July 02, 2010, 04:33:14 pm »

Major wonderful success.

I've got sprites working and loading, and its starting to look like a real game.
I need to code in some standard area-loading function, and slap together a demo level to climb around.
I suppose that will only take a couple hours.
I suppose you can look forward to some really basic platforming action.

I don't know how to deal with frame rate, so if anyone wants to guide me through it, or make me some sample code,
 I'd be very pleased.
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[7:54:34 PM] [Armok]: woooooo

Burried Houses - Platform Explorer Demo H - Cloud Scream

Outcast Orange

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Re: Platform Exploration Project > Rectangles
« Reply #27 on: July 02, 2010, 06:36:50 pm »

Here is a screenshot:



And here is the link:
Platform Explorer Demo A

I'll upload some concept art soon.

EDIT: Beware of frame rate shenanigans.
« Last Edit: July 02, 2010, 06:41:53 pm by Outcast Orange »
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Burried Houses - Platform Explorer Demo H - Cloud Scream

Org

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Re: Platform Exploration Project > Rectangles
« Reply #28 on: July 02, 2010, 08:08:56 pm »

Trying now.

:<
And accept my Steam friend request.
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Outcast Orange

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Re: Platform Exploration Project > Rectangles
« Reply #29 on: July 02, 2010, 08:52:20 pm »

This version has a bit more going on:

Platform Explorer Demo B

Foreground stuff and some animation.
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[7:53:55 PM] Armok, why did you demand that I don't eat you?
[7:54:34 PM] [Armok]: woooooo

Burried Houses - Platform Explorer Demo H - Cloud Scream
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