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added size to backgrounds

This commit is contained in:
dani 2023-08-06 16:50:36 +00:00
parent eebeb478d2
commit 42f8174a51
2 changed files with 11 additions and 4 deletions
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3
src/background.rs
View File

@ -7,6 +7,8 @@ pub struct Background {
pub tiles: Vec<Vec<u16>>,
/// Camera scroll (negative draw offset) for rendering
pub scroll: IVec2,
/// Size (used for rendering)
pub size: IVec2,
/// Are tiles indices half-tile indices?
pub half_tile: bool,
/// Is this background being displayed?
@ -22,6 +24,7 @@ impl Default for Background {
scroll: IVec2::ZERO,
half_tile: false,
active: true,
size: IVec2 { x: 19, y: 11 },
}
}
}

12
src/gsa_render_to_screen.rs
View File

@ -41,10 +41,14 @@ fn render_map(target: &mut [u8], map: &Background, tileset: &[u8], screen_size:
} as i32;
let mut startx = map.scroll.x / tilesize;
let mut starty = map.scroll.y / tilesize;
let endx =
(BACKGROUND_MAX_SIZE as i32).min(startx + (screen_size.x / TILE_SIZE as i32 + 1) * tcmult);
let endy =
(BACKGROUND_MAX_SIZE as i32).min(starty + (screen_size.y / TILE_SIZE as i32 + 1) * tcmult);
let endx = map
.size
.x
.min(startx + (screen_size.x / TILE_SIZE as i32 + 1) * tcmult);
let endy = map
.size
.y
.min(starty + (screen_size.y / TILE_SIZE as i32 + 1) * tcmult);
startx = 0.max(startx);
starty = 0.max(starty);
for x in startx..endx {