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[O] Optimize cursor movement

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This commit is contained in:
Azalea Gui
2023-03-08 21:24:28 -05:00
parent ca14b2e77c
commit 1d64066d95
1 changed files with 15 additions and 12 deletions
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tngame-rs/src/main.rs
+15 -12
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@@ -251,12 +251,6 @@ impl Mutes {
// Keep the current cursor // Keep the current cursor
let mut cursor = (0, 0); let mut cursor = (0, 0);
let mut ensure_cursor = |x: usize, y: usize, a: usize, buf_str: &mut String|
if cursor != (x, y) {
// Go to the pixel position
buf_str.push_str(&Goto(x as u16 + 1, y as u16 + 1).to_string());
cursor = (x + a, y);
};
// No optimization method: clear the screen // No optimization method: clear the screen
buf_str.push_str(&CLEAR); buf_str.push_str(&CLEAR);
@@ -269,18 +263,27 @@ impl Mutes {
// If the current pixel isn't empty // If the current pixel isn't empty
if let Some(p) = ppr { if let Some(p) = ppr {
if cursor != (x, y) {
if cursor.1 == y && x - cursor.0 < 8 {
// If the cursor is on the same line and with x distance less than 8, use spaces
for _ in 0..(x - cursor.0) {
buf_str.push(' ');
}
} else {
// Jump to the pixel position
buf_str.push_str(&Goto(x as u16 + 1, y as u16 + 1).to_string());
}
};
cursor = (x + 1, y);
if p.color != last_color { if p.color != last_color {
// Set the color // Set the color
ensure_cursor(x, y, 0, &mut buf_str);
buf_str.push_str(p.color); buf_str.push_str(p.color);
last_color = p.color; last_color = p.color;
} }
if p.char != ' ' { // Draw the pixel
// Draw the pixel buf_str.push(p.char);
ensure_cursor(x, y, 1, &mut buf_str);
buf_str.push(p.char);
}
// Clear the pixel // Clear the pixel
*ppr = None; *ppr = None;