Blitz Sonic Coding tutorials!!!

[06hypersonic60]

Yo guyz. Well you know that we don't have a big number of coders in the blitz sonic community. So, I decided to make some tutorials to encourage starting coding OR help you on some things.
All my tutorials will be here. And today I'll start with something simple:
How to make add a fall animation ( ACTION_FALL ) to your game



1- First thing to do is to set up the animation. You should go first to the "Game_Resources_Models.bb" file to add the animation frames.
What we need is

RecursiveExtractAnimSeq(Mesh_Sonic, 0, 223) ; Idle RecursiveExtractAnimSeq(Mesh_Sonic, 225, 248) ; Walking
RecursiveExtractAnimSeq(Mesh_Sonic, 250, 258) ; Running
RecursiveExtractAnimSeq(Mesh_Sonic, 259, 266) ; Spinning

Just duplicate the last line and change the numbers so they match the frames numbers on the model
to get something like this ( just an example )

RecursiveExtractAnimSeq(Mesh_Sonic, 0, 223) ; Idle RecursiveExtractAnimSeq(Mesh_Sonic, 225, 248) ; Walking
RecursiveExtractAnimSeq(Mesh_Sonic, 250, 258) ; Running
RecursiveExtractAnimSeq(Mesh_Sonic, 259, 266) ; Spinning
RecursiveExtractAnimSeq(Mesh_Sonic, 266, 285) ; Falling


no save and go to the "player_Animation.bb" then find these

Case ACTION_JUMP
p\Animation\Animation = 3
Case ACTION_CROUCH
p\Animation\Animation = 1
Case ACTION_SPINDASH
p\Animation\Animation = 3


then add

Case ACTION_FALL
p\Animation\Animation = 4


P.S: the number of the animation depends on what you have added before. So if you did add another animation before the fall one the number will be 5.

Now find this

If (p\Animation\Animation<>p\Animation\PreviousAnimation) Then
Select p\Animation\Animation
Case 0
RecursiveAnimate(p\Objects\Mesh, 1, 0.2, 1, 8)
Case 1
RecursiveAnimate(p\Objects\Mesh, 1, 0.4, 2, 8)
       p\Animation\Time# = 0.0
Case 2
RecursiveAnimate(p\Objects\Mesh, 1, 0.4, 3, 9)
p\Animation\Time# = 0.0
Case 3
RecursiveAnimate(p\Objects\Mesh, 1, 0.4, 4, 8)

And add a case 4 like the others. And as U can see, there's a number that alwayq change:
Case 0 >>1
Case 1 >> and so on. Each time u add a case u add 1 to that number.
And the number that cames before it, ( 0.2 / 0.4 ) can be used to change the animation's speed.

Now the animation is added. You only need to code the action to make it play in game

REST OF THE CODE IN THE NEXT POST


Please if I'm making a tutorial and cought it into parts ( each one on a post ) please do not comment 'til it's finished.. Thanks =D

[06hypersonic60]

Now go to the "player_managements.bb"
That's where the Actions are all coded.
First we should add a new action named fall ( it will be empty since it's just an animation that we want to play )


;==============================================
; Player_Action_Fall
;==============================================
Function Player_Action_Fall(p.tPlayer, d.tDeltaTime)

; Land
If (p\Motion\Ground = True) Then p\Action = ACTION_COMMON

End Function


then we go up to the action common
and add



If ((Not p\Action = ACTION_JUMP) And (p\Motion\Ground= False))
p\Action = ACTION_FALL
End If


And finally we go to "player.bb" to add the action fall in the list of the available actions
Find : ; Action constants
and add

Const ACTION_FALL = 4

P.S:
Const ACTION_FALL = 4 cuz we didn't add another action before
and finally go down 'til u find this

Case ACTION_SPINDASH
Player_Action_Spindash(p, d)
End Select

and add just after it the following code :

Case ACTION_FALL
Player_Action_Fall(p, d)




And now if you try out the edits, you'll find that sonic plays a fall animation when he's in the air.

Hope this helps =D

[chaosshadic456]

very nice! thanks.

[zankuujinmujinsho]

Apr 5, 2012 14:24:54 GMT -5 @chaosshadic456 said:

very nice! thanks.

How odd.

[chaosshadic456]

Apr 5, 2012 15:34:41 GMT -5 @zankuujinmujinsho said:

Apr 5, 2012 14:24:54 GMT -5 @chaosshadic456 said:

very nice! thanks.

How odd.

because?

[zankuujinmujinsho]

Apr 5, 2012 15:46:17 GMT -5 @chaosshadic456 said:

Apr 5, 2012 15:34:41 GMT -5 @zankuujinmujinsho said:

How odd.

because?

Oh, nothing.

[samcrossette]

Apr 5, 2012 16:29:02 GMT -5 @zankuujinmujinsho said:

Apr 5, 2012 15:46:17 GMT -5 @chaosshadic456 said:

because?

Oh, nothing.

And this made my day !
Anyway, nice tutorial here, even through my engine is completly different

[06hypersonic60]

Apr 5, 2012 16:42:17 GMT -5 samcrossette said:

Apr 5, 2012 16:29:02 GMT -5 @zankuujinmujinsho said:

Oh, nothing.

And this made my day !
Anyway, nice tutorial here, even through my engine is completly different

But I thought u use this fall code. I gave it to you with the start code so it works.
Oh maybe u changed something so the start code works with ur falling code

[06hypersonic60]

NEXT TUTORIAL:
Addidng skidding animation. ( the most easy thing ever !!! )

[06hypersonic60]

Second tutorial:
==========================
ADDING A SKIDDING ANIMATION
==========================

First thing to do is to add ur animation. And I won't repeat how since it's in the first post of this thread.

If u have finished that, u're almost done since that's the long part of the tutorial!!!

Now in player_managements.bb go find this:

If (Speed_Length#>0.4) Then
p\Flags\Skidding = True
If (ChannelPlaying(Channel_Skidding)=False) Then Channel_Skidding = PlaySound(Sound_Skidding)
End If


and add this line between:
"If (Speed_Length#>0.4) Then"
and
"End If"

p\Action = ACTION_SKID


then duplicate the ACTION_COMMON ( all of it )
and change this line :

Function Player_Action_Common(p.tPlayer, d.tDeltaTime)

with

Function Player_Action_Skid(p.tPlayer, d.tDeltaTime)

then add after that line the following code


Skid= Skid+(game\deltaTime\timeCurrentFrame-Game\DeltaTime\TimePreviousFrame)

If Skid > 500 Then  p\Action = ACTION_COMMON : Skid = 0



now u only need to go to up and add :
Global Skid = 0
P.S be sure that line isn't in a function or it won't work

and finally do the same things that u did for action fall in the player.bb to make it work

That's it. U now, have ur working skidding ;D


P.S: if the animation didn't work, it's just cuz u skipped a part or something.
P.S2: Don't forget to update ACTION_SKID if u update the ACTION_COMMON. Cuz when ur skidding, u can boost, jump... ect

[samcrossette]

Little note : You shall update action skid if add any new actions to action_common that can be used while skidding

[06hypersonic60]

Apr 5, 2012 17:00:16 GMT -5 samcrossette said:

Little note : You shall update action skid if add any new actions to action_common that can be used while skidding

yup. that's why I said u should duplicate the action common xD
I almost forgot about that. I'll add it to the tutorial post

[chaosshadic456]

global skid=0
What action?

[samcrossette]

Apr 5, 2012 18:21:12 GMT -5 @chaosshadic456 said:

global skid=0
What action?

This I ain't an action but a global, and the fact that you don't know this prove that you only made your engine by using the sonic speed streak source code available on youtube.

[Th33z]

^Somehow I had a feeling it were true... I recognized it from somewhere.