fix right edge grid rendering

CHANGELOG.md

@@ -7,8 +7,9 @@ Game store page: https://crispypin.itch.io/marble-machinations
 
 ### fixed
 - input bytes are consumed even if the marble can't be created because another one was taking its place
-- crash when saving config if no user dir exists
 - keybindings activated even when typing in a text field, making especially renaming blueprints difficult
+- grid rendering broken on right edge of the screen at some zoom levels and window sizes
+- crash when saving config if no user dir exists
 - after removing a binding that was a superset of another, the remaining one did not stop being blocked by the removed ones additional modifiers until another binding was added or edited
 
 ## v0.3.2 - 2025-04-14

README.md

@@ -10,7 +10,6 @@ logic mostly like https://git.crispypin.cc/CrispyPin/marble
 - blag post about marble movement logic?
 ### bugs
 - Shift+A and A+Shift conflict
-- rigt side grid rendering broken
 ### features
 #### 0.3.x
 - more levels

src/editor.rs

@@ -618,11 +618,13 @@ impl Editor {
 			let tile_size = TILE_TEXTURE_SIZE * self.zoom;
 			let grid_spill_x = (self.view_offset.x).rem(tile_size) - tile_size;
 			let grid_spill_y = (self.view_offset.y).rem(tile_size) - tile_size;
-			for y in 0..=(d.get_screen_height() / tile_size as i32) {
+			let hlines = d.get_screen_height() / tile_size as i32 + 3;
+			let vlines = d.get_screen_width() / tile_size as i32 + 3;
+			for y in 0..hlines {
 				let y = y * tile_size as i32 + grid_spill_y as i32;
 				d.draw_line(0, y, d.get_screen_width(), y, FG_GRID);
 			}
-			for x in 0..=(d.get_screen_width() / tile_size as i32) {
+			for x in 0..vlines {
 				let x = x * tile_size as i32 + grid_spill_x as i32;
 				d.draw_line(x, 0, x, d.get_screen_height(), FG_GRID);
 			}

src/marble_engine/grid.rs

@@ -289,12 +289,12 @@ impl Grid {
 		let tile_size = (TILE_TEXTURE_SIZE * scale) as i32;
 
 		let start_x = (-offset.x as i32) / tile_size - 1;
-		let tile_width = d.get_screen_width() / tile_size + 2;
+		let tiles_width = d.get_screen_width() / tile_size + 3;
 		let start_y = (-offset.y as i32) / tile_size - 1;
-		let tile_height = d.get_screen_height() / tile_size + 2;
+		let tiles_height = d.get_screen_height() / tile_size + 3;
 
-		for x in start_x..(start_x + tile_width) {
+		for x in start_x..(start_x + tiles_width) {
-			for y in start_y..(start_y + tile_height) {
+			for y in start_y..(start_y + tiles_height) {
 				let px = x * tile_size + offset.x as i32;
 				let py = y * tile_size + offset.y as i32;
 				if let Some(tile) = self.get((x, y).into()) {