little help

[Day]

ok so either im very tired or i just cant seem to figure out how to get the thrust effect to go behind the ship and stay with it as it moves left or right.

cut down code any help? lol im new to 2D stuff

im using the simple thrust from the shootem up eff in this

[attachment=0:1o4ootsp]Spacestuff.rar[/attachment:1o4ootsp]

[Day]

ok i have made some head way into this i can now position my effect to were i want it but how do i get it to update its position as the ship moves?

to mutch of the code is oop and makes it hard for newer people to read so maybe add some demos etc that dont require as mutch oop.

makes them easy to follow then as the only demo with sprites is vaders and thats way to harsh to figure out if your new.

Damian

Import rigz.timelinefx

Import rigz.tweener

SetGraphicsDriver GLMax2DDriver()

Graphics 1280,800,16,0,1

HideMouse





'

Effects Libarys

Local MyEffectsLib:tlEffectsLibrary = LoadEffects("efx/Effects.eff")  ' change to shoot em up eff

Local MyEffect:tlEffect = MyEffectsLib.GetEffect("PlayerThruster")   ' simple thruster

Local MyParticleManager:tlParticleManager = CreateParticleManager()

MyParticleManager.SetOrigin(GraphicsWidth()/2,GraphicsHeight()/2)





'

Player

PlayerShip:TPlayerShip = New TPlayerShip

PlayerShip.Image:TImage = LoadImage( "GFX/PlayerShip65.bmp" ) '  Error 001





'

Enemy Normal







'

PreLoop Setup

MyParticleManager.SetScreenSize(GraphicsWidth(), GraphicsHeight())

SetUpdateFrequency(30)

Local Tweener:tTweener = New tTweener.Create(30)

Local TempEffect:tlEffect=CopyEffect(MyEffect, MyParticleManager)



TempEffect.SetX(640)

TempEffect.SetY(759)

MyParticleManager.AddEffect(TempEffect)











'

Main Loop

While Not KeyDown(KEY_ESCAPE)

Cls

Tweener.Update()



For Local Ticks:Int = 1 To Tweener.FrameTicks

Tweener.UpdateExecutionTime()

MyParticleManager.Update()

Next



MyParticleManager.DrawParticles(Tweener.Tween)

PlayerShip.UpdateState()

PlayerShip.DrawSelf()

Flip

Wend

End



'

Types



Type TPlayerShip



Field X:Int = 600

Field Y:Int = 702

Field Speed:Int = 3

Field Lives:Int = 3

Field Weapon:Int = 1

Field ShieldState:Int = 0

Field ShieldEnergy:Int = 0

Field Image:TImage



Function Create:TPlayerShip(File:String, XStart:Int, YStart:Int )



Local Ship:TPlayerShip = New TPlayerShip

Ship.X = XStart

Ship.Y = YStart

Ship.Image = LoadImage( LoadBank(File) )



If Ship.Image = Null

Notify "Error: 001 Unable to load gfx"

End

EndIf

Return Ship



End Function



Method UpdateState()



If KeyDown( KEY_LEFT )

X:- Speed

EndIf



If KeyDown( KEY_RIGHT )

X:+ Speed

EndIf



If X < 0 Then X = 0

If X > 1195 Then X = 1195







End Method



Method DrawSelf()



DrawImage Image, X, Y



End Method



End Type  

[imported_peterigz]

Hello, I changed quite a few things which I marked with remarks. The main thing was to put a new field in the ship type to contain the thruster effect. You can then use this to update its position in the UpdateState Method. I also changed the timing code a bit. Logic updates should go in the for..next loop and rendering should happen outside. Take a look at this example: http://www.rigzsoft.co.uk/index.php?option=com_content&view=article&id=25 for a basic timing example using the tweener mod. If you understand that then you can add tweening to you spaceship as well.

It is is very OO and can be tricky to get used to but very much worth it in the end. I recommend the basic game tutorial here on this site: http://www.rigzsoft.co.uk/index.php?option=com_content&view=category&id=11&Itemid=11 and I also wrote another tutorial about making an asteroids game that actually uses the thruster effect. I wrote that for the Blitzmax coder magazine but I’ll attach a copy here in this thread if you missed it, I’ll just go dig it out…

[imported_peterigz]

Here is the Asteroids tutorial attached, and all the source code for it is here: http://www.rigzsoft.co.uk/files/asteroidstutorialpart3.zip

[Day]

gonna check it over now thanx

[Author]

Posts