tag:blogger.com,1999:blog-7604980045122375946.post822597513270221840..comments2024-03-08T17:29:26.280-08:00Comments on Retrogame Deconstruction Zone: Crazy Climber, Part 2: Tiles and the Scrolling BackgroundRetroAnalysthttp://www.blogger.com/profile/10633021712932756737noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-7604980045122375946.post-6313478163278683952020-03-03T08:03:34.738-08:002020-03-03T08:03:34.738-08:00It reminds me of how NES games did parallax scroll...It reminds me of how NES games did parallax scrolling (and Genesis games did multi-layer parallax scrolling) by adjusting the screen boundary on a per-scanline basis.<br /><br />But Crazy Climber is scrolling vertically on a horizontal monitor. That means it must be changing the screen top position mid-scanline. And that seems... crazy.Ahabhttps://www.blogger.com/profile/04131989140638867919noreply@blogger.comtag:blogger.com,1999:blog-7604980045122375946.post-31911433040229588622020-03-02T08:59:44.039-08:002020-03-02T08:59:44.039-08:00Tilemap hardware often had the ability to independ...Tilemap hardware often had the ability to independently scroll a particular set of columns or rows. In this case, they're only scrolling the columns that correspond to the tower and leaving the score display unscrolled.RetroAnalysthttps://www.blogger.com/profile/10633021712932756737noreply@blogger.comtag:blogger.com,1999:blog-7604980045122375946.post-57486591098324534622020-03-02T06:23:57.196-08:002020-03-02T06:23:57.196-08:00Is the score display part of the same tilemap as t...Is the score display part of the same tilemap as the skyscraper? If so, what stops it from scrolling as the screen boundary moves?Ahabhttps://www.blogger.com/profile/04131989140638867919noreply@blogger.com