editor erase visual

1 files changed, 12 insertions, 0 deletions

diff --git a/src/editor.c b/src/editor.c
index fa9b209..664da15 100644
--- a/src/editor.c
+++ b/src/editor.c
@@ -14,6 +14,15 @@ editor_redraw(Window *this, Root *root)
 		tileset_set_alpha(root->tileset, 191);
 		grid_draw(root->brush, root->tileset, this, dx, dy);
 		tileset_set_alpha(root->tileset, 255);
+	} else if (this->in_focus) {
+		const SDL_Rect rect = {
+			this->mouse_x * root->cfg->tile_width,
+			this->mouse_y * root->cfg->tile_height,
+			root->cfg->tile_width,
+			root->cfg->tile_height
+		};
+		window_set_draw_color(this, 255, 0, 0, 255);
+		window_draw_rect(this, &rect);
 	}
 
 	if (this->clicked) {
@@ -43,6 +52,7 @@ editor_event(Window *this, Root *root, SDL_Event *e)
 	case SDL_MOUSEBUTTONDOWN:
 	case SDL_MOUSEBUTTONUP:
 		_ev_mouse(this, root);
+		this->redraw = true;
 		break;
 	case SDL_WINDOWEVENT:
 		if (e->window.event == SDL_WINDOWEVENT_LEAVE)
@@ -113,6 +123,8 @@ _ev_mouse(Window *this, Root *root)
 					if (sx >= root->cell->width)
 						break;
 					const int tile = grid_get(root->brush, x, y);
+					if (tile == 0)
+						continue;
 					grid_set(root->cell, sx, sy, tile);
 				}
 			}