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Cv1/ScrollGlitch

5 bytes added, 00:01, 12 August 2022
How are background tiles updated?
Castlevania graphics are made up of foreground sprites (simon, candles, hearts, enemies) and background tiles. The game is building up these background tiles ahead of what is actually on the screen behind the scenes so that it can scroll smoothly as Simon moves. Around half a screen offscreen, the game is drawing a column two blocks wide. When that is complete, the game moves onto the next column. It looks something like this:
[[File:CV1_ScrollGlitch1newCV1_ScrollGlitch1.updated.png|550px]]
=== Tile Update Algorithm ===

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