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-rw-r--r--planner.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/planner.c b/planner.c
index 9b2d355fa..63f1f6364 100644
--- a/planner.c
+++ b/planner.c
@@ -1040,12 +1040,21 @@ bool plan(struct diveplan *diveplan, char **cached_datap, bool is_planner, bool
previous_point_time = clock;
stopping = true;
- current_cylinder = gaschanges[gi].gasidx;
- gas = displayed_dive.cylinder[current_cylinder].gasmix;
+ /* Check we need to change cylinder.
+ * We might not if the cylinder was chosen by the user */
+ if (current_cylinder != gaschanges[gi].gasidx) {
+ current_cylinder = gaschanges[gi].gasidx;
+ gas = displayed_dive.cylinder[current_cylinder].gasmix;
#if DEBUG_PLAN & 16
- printf("switch to gas %d (%d/%d) @ %5.2lfm\n", gaschanges[gi].gasidx,
- (get_o2(&gas) + 5) / 10, (get_he(&gas) + 5) / 10, gaschanges[gi].depth / 1000.0);
+ printf("switch to gas %d (%d/%d) @ %5.2lfm\n", gaschanges[gi].gasidx,
+ (get_o2(&gas) + 5) / 10, (get_he(&gas) + 5) / 10, gaschanges[gi].depth / 1000.0);
#endif
+ /* Stop for the minimum duration to switch gas */
+ tissue_tolerance = add_segment(depth_to_mbar(depth, &displayed_dive) / 1000.0,
+ &displayed_dive.cylinder[current_cylinder].gasmix,
+ prefs.min_switch_duration, po2, &displayed_dive, prefs.decosac);
+ clock += prefs.min_switch_duration;
+ }
gi--;
}