Hi, I was wondering is anyone could help me out. I'm trying to program Mario as my final for my comp sci. class. I'm not working about the actual Sprites now, just the basics, ie, moving, jumping and collisions. I'm stumped on the jumping part. Is there a good way to make him jump while retaining his x Velocity, and moving in a smooth arc?
llemes4011
31
Posting Whiz in Training
Recommended Answers
Jump to PostHold x velocity constant, set an initial upwards y velocity (depending on how hard he jumps). In each time interval reduce the y velocity by a fixed small amount (modelling the effect of gravity). As the y velocity reduces to zero then goes negative he will follow an inverted parabola, …
Jump to PostOut of curiosity, what are you using for this project (as far as GUI package)? Java 3d?
Jump to PostI meant GUI package as in graphics package, OpenGL being an example of one, java 3d being another
All 9 Replies
JamesCherrill
4,733
Most Valuable Poster
Team Colleague
Featured Poster
Hold x velocity constant, set an initial upwards y velocity (depending on how hard he jumps). In each time interval reduce the y velocity by a fixed small amount (modelling the effect of gravity). As the y velocity reduces to zero then goes negative he will follow an inverted parabola, just like the physic says he should.
llemes4011
31
Posting Whiz in Training
ahh, thanks for the help, it works now =]
BestJewSinceJC
700
Posting Maven
Out of curiosity, what are you using for this project (as far as GUI package)? Java 3d?
llemes4011
31
Posting Whiz in Training
I haven't messed with Java 3d yet, but I want to. Right now I'm just using the Rectangle class to store the information about the location of the ground, pipes, ect. and using the fillRect method to draw everything >.< It's pretty basic so far, no sprites yet...
GUI package?
BestJewSinceJC
700
Posting Maven
I meant GUI package as in graphics package, OpenGL being an example of one, java 3d being another
llemes4011
31
Posting Whiz in Training
I have no idea, lol
Ezzaral
2,714
Posting Sage
Team Colleague
Featured Poster
OpenGL and Java3D are only necessary for 3D work. You don't need to worry about them if you are working with 2D.
BestJewSinceJC
700
Posting Maven
Yeah, and initially, I didn't realize that was the case
llemes4011
31
Posting Whiz in Training
hahaha, ok, for a second there, I was worrying that I'd done something REALLY wrong, lol =P
Be a part of the DaniWeb community
We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.