I've recently been trying out animated sprites. I tore apart the Wiki and found that there are 6 SpriteAnimModes. Values 3 and 6 include "PingPong".

What does this mean exactly?

Think of pong, it means the animation goes to the end of the animation from the start, then goes backwards to the start from the end, then back again in a loop.

Just imagine it like a row of lights lighting up from left to right, and then back again.
So instead of using sprites for the animation from left to right AND from right to left, you only need the sprited for left to right.

So your saying that for ping pong anim modes you only need right to left or vice versa? For the others you need both I assume.

It appears this question has provided a deeper clarity for my SpriteAnimMode problem.

Much thanks you two.

An animation can be thought of as a series of frames going from the start, at the left, to the end, at the right. Normal cycle mode for animation begins at the start, shows each frame from left to right, then when it has reached the end, shows the starting frame again and moves left to right again. What we're saying is, ping pong mode, instead of showing the first frame again, reverses the order of frames and animates backward until it reaches the start.
Animation with 3 frames.
Normal Cycle: 1, 2, 3, 1, 2, 3
Pingpong: 1, 2, 3, 2, 1, 2, 3

SpriteAnimMode
0 = NOANIM - No anim
1 = ALWAYSLOOP - Always loop through frames, eg: 123,123,123
2 = ALWAYSRANDOM - Loop Randomly, eg: 1,5,3,27,2,3,1,5,6,2,3,etc
3 = ALWAYSPINGPONG - Always ping pong, eg: 123,321,123,321
4 = LOOPWHENMOVING - Same as 1 but only when moving.
5 = LOOPWHENOPENCLOSE - What rockets use
6 = PINGPONGOPENCLOSE - What some other rockets use.

Since i got that SpriteAnimMode stuff taken care of i'm just going to piggyback this next questions off this thread.

Is there a .ini file function that allows an MOPixel or MOParticle to increase velocity in an exponential fashion?
For instance, having a round of a gun start out slow then rapidly accelerate.

No, but a script to do so would be very simple.

Make a .lua file with this

then add this to the end of the .ini code for the particle, with a single tab.


Do be forewarned, that particles exceeding 500 m/s (half the true muzzle velocity of an M16) are deemed by data to be 'stupidly fast' and are deleted.