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CUBE
Registered 04/12/2004
Points 283
3rd February, 2006 at 07:28:21 -
What would the best way to apply gravity to a grenade that can be fired in 360 directions?
And it's side view as well, if you need to know...
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Radix hot for teacherRegistered 01/10/2003
Points 3139
3rd February, 2006 at 07:40:19 -
Define 'best.' Do you mean most realistic, or best tradeoff between looking fairly real and not being arsed to code it properly?
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CUBE
Registered 04/12/2004
Points 283
3rd February, 2006 at 07:42:45 -
I need the most realistic way
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Teapot Does he even go hereRegistered 02/10/2003
Points 2631
3rd February, 2006 at 22:11:10 -
Give it an Alterable avlue for it's Z position. Then treat the gravity like you would a platform game. Of course that's only a basic explanation.
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CUBE
Registered 04/12/2004
Points 283
3rd February, 2006 at 23:53:19 -
That kinda worked, but it didn't seem to like decimals... Can alterable values hold decimals?
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Radix hot for teacherRegistered 01/10/2003
Points 3139
4th February, 2006 at 01:07:35 -
Yeah, use alterable values for any movement that's going to need decimals, always. You need to convince MMF into storing them by including a decimal in the calculation; ie. 1 + 2.0 instead of 1 + 2.
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CUBE
Registered 04/12/2004
Points 283
4th February, 2006 at 07:54:15 -
Ok, it works fine now, thanks for the help
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ben mercer Possibly Insane
Registered 11/07/2004
Points 2538
4th February, 2006 at 12:00:50 -
The game is side view you say? You need to assign x and y velocities and positional values to your grenade. Basically, you do this.
When your grenade is fired-
set xvel to cos(angle) * power of throw
set yvel to sin(angle) * power of throw
And then your gravity is simply-
always set yvel to yvel + gravity (as a float value such as 2.0)
You also need to alter your positions accordingly
always set xpos to xpos + xvel
always set ypos to ypos + yvel
If you find that your grenade can pass through thin walls, you need to use a loop like this.
always start move loop 20 times
on move loop-
set xpos to xpos + xvel/20.0
set ypos to ypos + yvel/20.0
If it's a side view game, i think you needn't bother with a z position. If you just use a y position and not a velocity, it is not realistic.
Also i thought i'd add that to give the grenade a terminal velocity (i.e it doesnt just keep accelerating) you add a simple air resistance solution:
always set xvel to xvel / 1.05
always set yvel to yvel / 1.05 Edited by the Author.
Stuckboy
JC Denton: "I know your UNATCO killphrase: Laputan Machine."
Gunther Hermann: "I - am - not - a - machi --"
JC Denton: "Sticks and stones..."
Teapot Does he even go hereRegistered 02/10/2003
Points 2631
5th February, 2006 at 05:08:13 -
Woah it's side view? I thought it was top view. So my Z thing was overly-complicated.
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CUBE
Registered 04/12/2004
Points 283
5th February, 2006 at 08:08:54 -
Yeah, but I did it the way you said, Teapot.. But I was wondering why you said to have a Z value...
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