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axcho — Engine Prototype 03
Published: 2009-09-04 02:02:14 +0000 UTC; Views: 9489; Favourites: 39; Downloads: 2305
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Engine Prototype 03 - by axcho on September 3, 2009This is my third prototype of the Dejeweled physics engine . Now the engine supports rod, pin, and door constraints, in two flavors: rigid and springy. And believe me, those springy door constraints weren't easy to make.
This ragdoll is just like the one from Engine Prototype 02 , with a staff instead of a sword. The new door constraints let the ragdoll hold the staff at a certain angle, instead of just spinning freely.
Click the window to start. Then use the arrow keys to move the stick figure around.
left - rotate left
right - rotate right
up - raise arms
down - spread legs
For slow motion, hold down the space bar. Click the meters to adjust the physics settings.
Let me know if you find anything interesting.
Dejeweled Development Blog
Physics Prototypes by axcho
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Comments: 32
mid air dance- max everything but put gravity at 0, and then mash the buttons
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If you set up everything to the max and press the arrow keys randomly, he starts dancing the get down meme. xD
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i just thought of something u could do 4 no 4!, u could do two swords,one in each hand! if u dont like it then cool but plz think about it!
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Heh, I like it 'cause it's easy, but I think there are a lot of people who want something new. For the next one I'm going to try making a tool for making your own structures.
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dude, whatever your doing, its awesome! Coding takes some serious skill.
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Thanks, I'll try to keep doing it.
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When you press the left key to spin him left he spins left but if you let go and the stick becomes inverted so do the controls.
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Yeah, to spin you have to switch between left and right. I could have made it spin just by holding down one arrow, but the movement looks really unnatural that way.
Thanks for the feedback!
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Haha, thanks! 
Did you try the other ones yet?
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I did after finding this one, but I think I still like this one best
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I assume it's all done in AS3, correct?
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Heh, it's in AS2, actually. The full game will be AS3 though.
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AWESOME! Hey, major props to you, I only know AS2 and thought I was the only person who hadn't swapped to AS3 yet. Question, how did you achieve the mirrored effect? I'd normally just learn by ripping apart your code, but you strike me as being cool enough to actually help a guy out
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Ha, well I've been using both now. I just started playing with the flixel engine for AS3 and I think it will work great, at least for pixel-y games: [link]
For physics-based games I'll eventually port my own Dejeweled Engine over to AS3.
The mirror effect is really simple, actually. Every frame I draw the stick figure into a movie clip with LineTo commands. Then I draw the stick figure upside-down with more LineTo commands in another movie clip, which has its _yscale set to 0.5 so it's squished. That's it!
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Ahhh, I should have realized it was just lineTo commands. Useful, but if you were to apply custom graphics overtop I imagine it would be rather difficult to have them work the same way
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Not necessarily. If you're placing movie clips you could just have two copies of each movie clip. Or if you can't do it any other way, you could always copy the bitmap data and color it gray...
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Which would be difficult to do in AS2.
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No more so than AS3 - you can access bitmap data in Flash 8 or higher.
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AS3 has shiny custom functions and stuff for it though! At least, a cleaner format to access them. I dunno if there is or not in AS2 lol
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Yeah, probably. Well, let me know if you try it out yourself! I'd be glad to help if you run into any problems.
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You gotta LOVE it to beleive it !!! This Prototype is Awsome .
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Haha, thank you!
Did you try the other ones yet? [link]
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