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This is probably a dumb question but because the code looks solid I have no idea what it could be.
I have 2 sprites. After their y becomes 0 they refuse to move any further (works as long a their y-value is < 0). Changing the VELOCITY to 1 or greater fixes the problem. Why? Why does @bg1.y += 0.5 not work but @bg1.y += 1 does?
Note that bitmap.height and Graphics.height both equal 480.
Sample Code:
Is the float being rounded down somewhere in the Sprite class?
Also:
I have 2 sprites. After their y becomes 0 they refuse to move any further (works as long a their y-value is < 0). Changing the VELOCITY to 1 or greater fixes the problem. Why? Why does @bg1.y += 0.5 not work but @bg1.y += 1 does?
Note that bitmap.height and Graphics.height both equal 480.
Sample Code:
class Scrolling_BG_Vertical VELOCITY = 0.5 # BUG: any velocity < 1 will bug and will not move the sprite down after it reaches "bg1.y == 0" or "bg2.y == 0" #VELOCITY = 1 # <<< works #VELOCITY = 0.9 # <<< bugs def initialize(image) @bg1 = Sprite.new @bg1.bitmap = Cache.test(image) @bg1.x = 0 @bg1.y = 0 @bg1.z = 1 @bg2 = Sprite.new @bg2.bitmap = Cache.test(image) @bg2.x = 0 @bg2.y = -@bg2.bitmap.height @bg2.z = 1 end def update @bg1.y += VELOCITY @bg1.y = -@bg1.bitmap.height if @bg1.y == Graphics.height @bg2.y += VELOCITY @bg2.y = -@bg2.bitmap.height if @bg2.y == Graphics.height p 'just making sure that update is being called every frame' endend
Also:
Code:
p @bg1.y # => 0@bg1.y += 0.5p @bg1.y # => 0.... wut... still 0?Latest Threads
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... so here's my main characters running around inside "Headspace", a place people use as a safe place away from anxious/panic related thinking.
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