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Double jump animation example using only timers

- Arrows keys to move
- Space to jump
- Press 1 on keypad to enable double jump
Then you can jump one more time after the first jump , with another animation

Ps. I dont know if thats the right way to do, but thats working

Project : http://dl.dropbox.com/u/19970067/Marati … 20Jump.rar
LUA script alone : http://dl.dropbox.com/u/19970067/Marati … 20Jump.lua

- This is an early rewrite of the tutorial as the previous one was quite ... well. not good
This is still unfinished, will update it over time

Method overview :

1) Pack a serie of image in a spritesheet
2) Import and set-up animation in blender
3) Use it in maratis

You will need :

Imagemagick to :
- Make the spritesheet
- Split spritesheet you could find on the web and adapt it
- Whatever. this app is a must have anyway

Optional :
I also recommand using Imagemagick along with Batchrun, so you can set up your working directory and edit your scripts very easily

Ok let's get started, first, get this :

- An Image Sequence, this is a CC0 fireball animation from OGA
- Blender Template - With keyframes already set, so you just have to load the texture in it

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Next step

Now let's pack the individual images into a spritesheet.

To do this, we'll use a simple imagemagick script /!\ (to use with Montage.exe) /!\ :

*.png -tile 8x8 -geometry 128x128+0+0 -background black PNG32:Spritesheet.png

This will generate a 1024x1024 picture, with all the images aligned as 128x128 size in it.

When done, we have the spritesheet. Now let's set up the animations in blender.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Next step

Open Blender, set the spritesheet in the material texture slot.

As keyframe are already set, you can export the mesh right away.

In case you don't noticed, i have scaled up the keyframes 10 times.

That way, in maratis we can control the playing speed with setAnimationSpeed(), without having to re-open / tweak / re-export the mesh everytime in blender.

Note : With this method, the texture will play very, very slowly once imported. "Good" animation speed should be about 6 or 7

/!\ Make sure to uncheck Material animation and Armature Animation before exporting /!\

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Next step

From here you can test the texture animation in a new project,
but it will play very slowly if you dont make use of setAnimationSpeed()

I will provide a test project later on

--------------To come
- Precise animation control
- A project to test your textures
- Spritesheets of different sizes
- Pack and use multiple animations in a single texture

Simple Scrolling texture :

Apply texture (seamless) on your 3d model

Make sure its UV mapped of course

Go on Animation view then :
Make sure you are on the first (1) frame on the timeline

Go under texture tab -> Mapping, and put your cursor over "Offset"

(Side note, hold left lick on X or Y offset to see the real-time results !)

Press "i", this will add a keyframe at frame 1, note that offset will turn yellow and there will be 3 options added on the graph editor, like you can see here :

On Graph editor window, Uncheck two of the offsets (depends on your needs, here i just enabled Y ) and move on last frame of the Timeline (200 in this case)
Put Offset Y on 1.00 , then put your mouse over Offset again and press "i", that's adding another keyframe at frame 200.

So far,
we have 1 keyframe at frame 1 with Offset Y : 0.00
and 1 keyframe at frame 200 with Offset Y : 1.00 (from 0 to 1 = one complete loop)

Ok now, on the graph editor window, go on Key -> Interpolation mode -> Linear
That will change the curved line to a straight one

If u don't fucked up, graph should look like this :

Now export with maratis exporter (dont forget to activate animation)
And thats all.

In maratis, some examples :

Simple texture on an object (i failed frame rate of the gif here è_é dont worry its smoother in maratis)

Scrolling texture + static normal on a plane

Scrolling texture + scrolling normal on a plane