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feat: use backbuffer fully, proper 'present' system, debug texture draws with transparency

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This commit is contained in:
Ryan Walters
2025-08-28 19:40:31 -05:00
parent 9bfe4a9ce7
commit d0628ef70b
3 changed files with 82 additions and 78 deletions
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24
src/systems/debug.rs
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@@ -3,7 +3,7 @@ use std::cmp::Ordering;
use crate::constants::BOARD_PIXEL_OFFSET;
use crate::map::builder::Map;
use crate::systems::{BackbufferResource, Collider, CursorPosition, Position, SystemTimings};
use crate::systems::{Collider, CursorPosition, Position, SystemTimings};
use bevy_ecs::resource::Resource;
use bevy_ecs::system::{NonSendMut, Query, Res};
use glam::{IVec2, UVec2, Vec2};
@@ -89,7 +89,6 @@ fn render_timing_display(
#[allow(clippy::too_many_arguments)]
pub fn debug_render_system(
mut canvas: NonSendMut<&mut Canvas<Window>>,
backbuffer: NonSendMut<BackbufferResource>,
mut debug_texture: NonSendMut<DebugTextureResource>,
debug_font: NonSendMut<DebugFontResource>,
debug_state: Res<DebugState>,
@@ -104,18 +103,6 @@ pub fn debug_render_system(
let scale =
(UVec2::from(canvas.output_size().unwrap()).as_vec2() / UVec2::from(canvas.logical_size()).as_vec2()).min_element();
// Copy the current backbuffer to the debug texture
canvas
.with_texture_canvas(&mut debug_texture.0, |debug_canvas| {
// Clear the debug canvas
debug_canvas.set_draw_color(Color::BLACK);
debug_canvas.clear();
// Copy the backbuffer to the debug canvas
debug_canvas.copy(&backbuffer.0, None, None).unwrap();
})
.unwrap();
// Get texture creator before entering the closure to avoid borrowing conflicts
let mut texture_creator = canvas.texture_creator();
let font = &debug_font.0;
@@ -128,8 +115,11 @@ pub fn debug_render_system(
// Draw debug info on the high-resolution debug texture
canvas
.with_texture_canvas(&mut debug_texture.0, |debug_canvas| {
// Find the closest node to the cursor
// Clear the debug canvas
debug_canvas.set_draw_color(Color::RGBA(0, 0, 0, 0));
debug_canvas.clear();
// Find the closest node to the cursor
let closest_node = if let Some(cursor_world_pos) = cursor_world_pos {
map.graph
.nodes()
@@ -214,8 +204,4 @@ pub fn debug_render_system(
render_timing_display(debug_canvas, &mut texture_creator, &timings, font);
})
.unwrap();
// Draw the debug texture directly onto the main canvas at full resolution
canvas.copy(&debug_texture.0, None, None).unwrap();
canvas.present();
}