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Transparency works now and my brain is too fried to explain why

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Chlorospingus
2025-05-28 16:04:01 -07:00
parent 1eff2cd4f7
commit a50ef3ad8c
4 changed files with 27 additions and 5 deletions
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4
src/graphics/drawable.rs
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@@ -42,8 +42,8 @@ pub fn color_over(over: u32, under: u32) -> u32 {
let g_under = (under & 0x0000ff00) >> 8;
let b_over = (over & 0x000000ff) >> 0;
let b_under = (under & 0x000000ff) >> 0;
((a_over + (a_under as f64 * (0xff - a_over) as f64 / 0xff as f64) as u32).min(0xff) << 24).min(0xff) +
((r_over + (r_under as f64 * (0xff - a_over) as f64 / 0xff as f64) as u32).min(0xff) << 16).min(0xff) +
((a_over + (a_under as f64 * (0xff - a_over) as f64 / 0xff as f64) as u32).min(0xff) << 24) +
((r_over + (r_under as f64 * (0xff - a_over) as f64 / 0xff as f64) as u32).min(0xff) << 16) +
((g_over + (g_under as f64 * (0xff - a_over) as f64 / 0xff as f64) as u32).min(0xff) << 8) +
((b_over + (b_under as f64 * (0xff - a_over) as f64 / 0xff as f64) as u32).min(0xff) << 0)
}