Sprite Blender - Time

 

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Attach to a sprite to make it fade in or out over a specified period of time

-- Sprite Blender -- By luke@medialight.com.au -- July 99 property spriteNum, spriteRef, TicksForTransition, startTicks, endTicks, sBlend, eBlend, blendChange, holdForCompletion on beginSprite me   spriteRef = sprite(me.spriteNum)   spriteRef.blend = sBlend   blendChange = eBlend - sBlend   startTicks = the ticks   endTicks = startTicks + TicksForTransition end on endSprite me   spriteRef.blend = eBlend end on exitframe me   myProgress = (float(the ticks - startTicks)/TicksForTransition)   if myProgress > .95 then myProgress = 1   myBlend = sBlend + integer( blendChange * myProgress )   spriteRef.blend = myBlend   if holdForCompletion and (myProgress < 1) then go to the frame end ---------- on getPropertyDescriptionList   if the currentSpriteNum > 0 then defaultStartBlend = the blend of sprite(the currentSpriteNum)   else  defaultStartBlend = 0   defaultEndBlend = 100 - defaultStartBlend   p_list = [:]   addProp p_list, #TicksForTransition, [ #comment: "Number of ticks for the transition:", #format: #integer, #default: 120, #range: [#min:1, #max:1200]]   addProp p_list, #sBlend, [ #comment: "Start blend:", #format: #integer, #default: defaultStartBlend, #range: [#min:0, #max:100]]   addProp p_list, #eBlend, [ #comment: "Ending blend:", #format: #integer, #default: defaultEndBlend, #range: [#min:0, #max:100]]   addProp p_List, #holdForCompletion, [ #comment: "Hold on frame until completion?:", #format: #boolean, #default: 0]   return p_list end on getBehaviorDescription     msg = "Fades the sprite in or out using blends over a specified time span. "  & return & return   put " - Specify the timespan for the transition" & return after msg   put " - Specify the starting and ending blend values" & return after msg   put " - Specify whether to hold on the frame until the transition complete" after msg   return msg end