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get rendering semi fixed

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Schrottkatze 2024-02-23 08:12:00 +01:00
parent 93af87b482
commit c2cb73fbc7
Signed by: schrottkatze
SSH key fingerprint: SHA256:hXb3t1vINBFCiDCmhRABHX5ocdbLiKyCdKI4HK2Rbbc
3 changed files with 30 additions and 12 deletions
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31
src/engine/render.rs
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@ -35,13 +35,15 @@ impl<'buf, 'win> RenderCtx<'buf, 'win> {
}
pub fn clear(&mut self, color: u32) {
self.rect(0, 0, self.win_size.0, self.win_size.1, color)
self.rect(0, 0, self.context_size.0, self.context_size.1, color)
}
// draw a rectangle in the context
//
// coordinates are relative to the context
pub fn rect(&mut self, x: u32, y: u32, width: u32, height: u32, color: u32) {
/// draw a rectangle in the context
///
/// coordinates are relative to the context
///
/// does not check against overflows
pub fn rect_unchecked(&mut self, x: u32, y: u32, width: u32, height: u32, color: u32) {
// position in buffer coordinates and not relative coordinates
let x_buf_pos = self.context_pos.0 + x;
let y_buf_pos = self.context_pos.1 + y;
@ -56,6 +58,25 @@ impl<'buf, 'win> RenderCtx<'buf, 'win> {
}
}
pub fn rect(&mut self, x: u32, y: u32, width: u32, height: u32, color: u32) {
if x >= self.context_size.0 || y >= self.context_size.1 || width == 0 || height == 0 {
} else {
let width = if (x + width) >= self.context_size.0 {
width.saturating_sub((x + width) - self.context_size.0)
} else {
width
};
let height = if (y + height) >= self.context_size.1 {
height.saturating_sub((y + height) - self.context_size.1)
} else {
height
};
self.rect_unchecked(x, y, width, height, color)
}
}
pub fn force_present(self) {
self.buffer.present().unwrap()
}