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Newbie animation problem solved

Started by Fash, February 06, 2006, 04:35:27 PM

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Fash

Hi,
After my post yesterday ref animations I've managed to sort it using the following code (commented)...Hope it may help someone in the future :)
It uses Kevs animstrip function, and uses cursor keys to move left/right-animation image attached.

PlayBASIC Code: [Select]
; PROJECT : spritetest
; AUTHOR : Steve "Fash" Harrison
; CREATED : 05/02/2006
; EDITED : 06/02/2006
OpenScreen 640,480,32,1 ;open a screen
Dim CurrentAnim(1) ;define animation
Load_anim(CurrentAnim(),"gfx\walkingduck.png",8,48,48,RGB(255,0,128));load gfxstip into anim
SetFPS 60 ;set maximum frames per second
time=Timer() ;create a timer
CurrentFrame=1:dir$="right" ;set initial startframe and direction
x=100 ;set initial x position of sprite
Do ;start of main loop
Cls 0 ;clear screen
Text 0,50,"dir="+dir$ ;text to show which direction we're facing
; ==================================================
; Drawing Image animation frames manually
; ==================================================
DrawImage CurrentAnim(CurrentFrame),x,100,1 ;use kevs animation function
If dir$="right" ;if we are facing right
If RightKey()=0 ;and right key is not pressed
currentframe=1 ;set frame to standing, facing right
EndIf
EndIf
If RightKey()=1:dir$="right" ;if right key pressed set direction
If Timer()-time>=60 ;wait until timer at 60 millisecs
Inc currentFrame:x=x+2 ;increase animation frame and x position
If x>640 ;if x position over right edge of screen
x=0 ;wrap around other side
EndIf
time=Timer()
EndIf
If currentFrame>4 ;if final anim for this direction reached
CurrentFrame=1 ;reset to start
EndIf
EndIf
;===================================================
If dir$="left" ;if we are facing left
If LeftKey()=0 ;and left key is not pressed
currentframe=8 ;set frame to standing facing left
EndIf
EndIf
If LeftKey()=1:dir$="left" ;if leftkey pressed set direction
If Timer()-time>=60 ;wait until timer at 60 millisecs
Dec currentFrame:x=x-2 ;decrease animation frame and x position
If x< 0 ;if x position over left edge of screen
x=640 ;wrap around other side
EndIf
time=Timer()
EndIf
If currentFrame<5 ;if final anim for this direction reached
CurrentFrame=8 ;reset to start
EndIf
EndIf
Sync ;switch buffers
Loop ;repeat loop until "escape" pressed

; =======================================================================
; This function loads an image strip/grid into memory then cuts it into
; set of small images. The Image indexes are stored in a passed
; array.
; =======================================================================

Function Load_Anim(AnimFrames(),File$,Frames,FrameWidth,FrameHeight,TransparentColour)
Index=GetFreeImage()
LoadImage file$,Index

width=GetImageWidth(index)
height=GetImageHeight(index)

Dim AnimFrames(Frames)
AnimFrames(0)=Frames

For lp=1 To frames
RenderToImage Index
FreeImage=GetFreeImage()
AnimFrames(lp)=FreeImage
GetImage FreeImage,Xpos,Ypos,Xpos+Framewidth,Ypos+FrameHeight
ImageMaskColour FreeImage,TransparentColour
Xpos=Xpos+Framewidth
If Xpos=>width Then Xpos=0: Ypos=Ypos+FRameHeight
Next
RenderToScreen
DeleteImage index
EndFunction

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