VPM-B: add vpm-b based deco checking.

Check during the trial_ascent() if existing pressure gradient is
smaller than previously calculated max gradient. If not, ascent
is impossible from the vpm-b's point of view.

Signed-off-by: Jan Darowski <jan.darowski@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/planner.c b/planner.c
index d376acc7c..0307ea89c 100644
--- a/planner.c
+++ b/planner.c
@@ -836,11 +836,15 @@ bool trial_ascent(int trial_depth, int stoplevel, int avg_depth, int bottom_time
 		tissue_tolerance = add_segment(depth_to_mbar(trial_depth, &displayed_dive) / 1000.0,
 					       gasmix,
 					       TIMESTEP, po2, &displayed_dive, prefs.decosac);
-		if (deco_allowed_depth(tissue_tolerance, surface_pressure, &displayed_dive, 1) > trial_depth - deltad) {
+		if (prefs.deco_mode != VPMB && deco_allowed_depth(tissue_tolerance, surface_pressure, &displayed_dive, 1) > trial_depth - deltad) {
 			/* We should have stopped */
 			clear_to_ascend = false;
 			break;
 		}
+		if (prefs.deco_mode == VPMB && (!is_vpmb_ok(depth_to_mbar(trial_depth, &displayed_dive) / 1000.0))){
+			clear_to_ascend = false;
+			break;
+		}
 		trial_depth -= deltad;
 	}
 	restore_deco_state(trial_cache);