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-rw-r--r--core/planner.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/core/planner.c b/core/planner.c
index 5bcbdab7e..0177b9691 100644
--- a/core/planner.c
+++ b/core/planner.c
@@ -1080,6 +1080,14 @@ bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, i
diveplan->eff_gflow = lrint(100.0 * (regressiona() * first_stop_depth + regressionb()));
}
+ for (int i = 0; i < MAX_CYLINDERS; i++)
+ if (cylinder_nodata(&dive->cylinder[i])) {
+ // Switch to an empty air cylinder for breathing air at the surface
+ // If no empty cylinder is found, keep using last deco gas
+ current_cylinder = i;
+ break;
+ }
+ plan_add_segment(diveplan, 600, 0, current_cylinder, 0, false, OC);
create_dive_from_plan(diveplan, dive, is_planner);
add_plan_to_notes(diveplan, dive, show_disclaimer, error);
fixup_dc_duration(&dive->dc);