Working with Sprites.
BlitzMax Forums/BlitzMax Beginners Area/Working with Sprites.
| ||
| I am trying to create a Sprite handler for my code. I am getting a little hung up on some of the concepts. I have read several tutorials but they do not seem to cover more advanced sprite animations. Here is the code I came up with: Type TAnimation Field AnimName:String Field Image:TImage Field X:Int Field Y:Int Field Frames:Int[] = [9,19,29] Field CurrFrame:Int Field AnimTimer:Int = MilliSecs() Field AnimSpeed:Int = 250 Function Create:TAnimation(Name:String,File:String,CellWidth:Int,CellHeight:Int,FirstCell:Int,TotalCells:Int,Frames:Int[]) Local Anim:TAnimation = New TAnimation Anim.Image = LoadAnimImage(File,CellWidth,CellHeight,FirstCell,TotalCells) AnimName=Name X=100 Y=100 End Function Method Update() If MilliSecs() - AnimTimer > AnimSpeed Then AnimTimer = MilliSecs() ; CurrFrame:+1 If CurrFrame > Frames.Length - 1 Then CurrFrame = 0 End Method Method Render() 'If KeyDown(Key_Down) And KeyDown(Key_S) DrawImage Image,X,Y,Frames[CurrFrame] 'End If End Method End Type Now for some questions. I have been able to animate my character when dealing with 'simple' sprite sheets. All the animations for walking to the left on one sheet, for example. Now I am trying to work with a character sprite sheet that has all the actions that the player can do on one sheet. (Here is an example of the idea I want to work with here: http://media.photobucket.com/image/mario-3%20Fire/SpoonyBardOL/mario-3.gif) The idea being that when the player gets new upgrades, a new gun, a shield, etc. I can have a variable that records the current character upgrade level, which in turn will have it use a different sprite sheet that has the actions all in the same spot but just has the gun or shield added to the sprite picture. I am a little confused on how to cut up the sprite sheet so that each animation is connected in the end. What I came up with is an array that holds the frames for each animation, and a string that holds the animation name. (e.g. "jumping"). But this seems bad because I am calling this function each time: TAnimation.Create("Pull","C:\Program Files\BlitzMax\tmp\mario-3(Fire).png",80,80,0,100,[17,27]) So it seems like I am loading the whole sprite sheet each time just to get two frames out of it. That would be bad for memory. Is there a better way? Can some one point me in the right direction? Thanks. |
| ||
| you can pass a pixmap instead of the file name to the LoadAnimImage function. |
| ||
| Okay, after reading the help file that sounds like what I am looking for. So I would load the file as a pixmap and then just load the animations from the pixmap. Perfect. Thanks! Does anyone have any ideas on handling the different frames for the animations. I am using an array, but should I be using a list or something else? |
   |