* replace frame based laser anim with code based anim in songwheel

scripts/songselect/songwheel.lua

@@ -13,6 +13,8 @@ local illustratedBgImage = gfx.CreateSkinImage("song_select/data_panel/illust_bg
 local songPlateBg = gfx.CreateSkinImage("song_select/plate/bg.png", 1)
 local songPlateBottomBarOverlayImage = gfx.CreateSkinImage("song_select/plate/bottom_bar_overlay.png", 1)
 
+local laserAnimBaseImage =  gfx.CreateSkinImage("song_select/laser_anim.png", 1)
+
 local top50OverlayImage = gfx.CreateSkinImage("song_select/top50.png", 1)
 local top50JacketOverlayImage = gfx.CreateSkinImage("song_select/top50_jacket.png", 1)
 
@@ -90,9 +92,6 @@ local difficultyLabelUnderImages = {
     gfx.CreateSkinImage("songtransition/difficulty_labels/vvd.png", 0),
 }
 
--- ANIMS
-local laserAnimation = gfx.LoadSkinAnimation('song_select/laser_anim', 1/60, 0, false);
-
 game.LoadSkinSample('song_wheel/cursor_change.wav');
 game.LoadSkinSample('song_wheel/diff_change.wav');
 
@@ -125,6 +124,9 @@ local transitionAfterscrollTextSongArtist = 0;
 local transitionAfterscrollDifficultiesAlpha = 0;
 local transitionAfterscrollJacketBgAlpha = 0;
 
+local transitionLaserScale = 0;
+local transitionLaserY = 0;
+
 local transitionLeaveReverse = false;
 local transitionLeaveScale = 0;
 local transitionLeaveOffsetY = 0;
@@ -215,6 +217,16 @@ function getGradeImageForScore(score)
     return gradeImage;
 end
 
+function drawLaserAnim()
+    gfx.BeginPath()
+
+    gfx.Scissor(0, transitionLaserY, desw, 100);
+
+    gfx.ImageRect(0, 0, desw, desh, laserAnimBaseImage, 1, 0)
+
+    gfx.ResetScissor();
+end
+
 function drawBackground(deltaTime)
     gfx.BeginPath()
     gfx.ImageRect(0, 0, desw, desh, backgroundImage, 1, 0)
@@ -239,12 +251,7 @@ function drawBackground(deltaTime)
 
     gfx.ImageRect(0, 0, desw, desh, dataPanelImage, 1, 0)
 
-    local laserAnimTickRes = gfx.TickAnimation(laserAnimation, deltaTime);
-	if laserAnimTickRes == 1 then
-        gfx.BeginPath()
-        gfx.ImageRect(0, 0, desw, desh, laserAnimation, 1, 0);
-        gfx.GlobalAlpha(1);
-	end
+    drawLaserAnim()
 
     if song and diff then 
         gfx.BeginPath()
@@ -571,6 +578,16 @@ function tickTransitions(deltaTime)
         transitionAfterscrollJacketBgAlpha = 1;
     end
 
+    -- Laser anim
+    if transitionLaserScale < 1 then
+        transitionLaserScale = transitionLaserScale + deltaTime / 3 -- transition should last for that time in seconds
+    else
+        transitionLaserScale = 0
+    end
+
+    transitionLaserY = desh - math.min(transitionLaserScale * 2 * desh, desh);
+    
+
     -- Leave transition
     if (transitionLeaveReverse) then
         if transitionLeaveScale > 0 then