[colobot] 100/390: Possibly fixed goto() by changing safety margin
Didier Raboud
odyx at moszumanska.debian.org
Fri Jun 12 14:21:33 UTC 2015
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odyx pushed a commit to branch upstream/latest
in repository colobot.
commit cf7be276dcfac10891422773cee79da9a5e09d6c
Author: krzys-h <krzys_h at interia.pl>
Date: Mon Oct 20 20:44:57 2014 +0200
Possibly fixed goto() by changing safety margin
TODO: More testing
Closes #326
---
src/object/task/taskgoto.cpp | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/object/task/taskgoto.cpp b/src/object/task/taskgoto.cpp
index 2ddb92e..46629e0 100644
--- a/src/object/task/taskgoto.cpp
+++ b/src/object/task/taskgoto.cpp
@@ -37,7 +37,12 @@
const float FLY_DIST_GROUND = 80.0f; // minimum distance to remain on the ground
const float FLY_DEF_HEIGHT = 50.0f; // default flying height
-const float BM_DIM_STEP = 5.0f;
+
+// Settings that define goto() accuracy:
+const float BM_DIM_STEP = 5.0f; // Size of one pixel on the bitmap. Setting 5 means that 5x5 square (in game units) will be represented by 1 px on the bitmap. Decreasing this value will make a bigger bitmap, and may increase accuracy. TODO: Check how it actually impacts goto() accuracy
+const float BEAM_ACCURACY = 5.0f; // higher value = more accurate, but slower
+const float SAFETY_MARGIN = 0.5f; // Smallest distance between two objects. Smaller = less "no route to destination", but higher probability of collisions between objects.
+// Changing SAFETY_MARGIN (old value was 4.0f) seems to have fixed many issues with goto(). TODO: maybe we could make it even smaller? Did changing it introduce any new bugs?
@@ -1739,7 +1744,7 @@ Error CTaskGoto::BeamSearch(const Math::Vector &start, const Math::Vector &goal,
m_bmStep ++;
len = Math::DistanceProjected(start, goal);
- step = len/5.0f;
+ step = len/BEAM_ACCURACY;
if ( step < BM_DIM_STEP*2.1f ) step = BM_DIM_STEP*2.1f;
if ( step > 20.0f ) step = 20.0f;
nbIter = 200; // in order not to lower the framerate
@@ -1969,7 +1974,7 @@ void CTaskGoto::BitmapObject()
}
if ( type == OBJECT_PARA ) oRadius -= 2.0f;
- BitmapSetCircle(oPos, oRadius+iRadius+4.0f);
+ BitmapSetCircle(oPos, oRadius+iRadius+SAFETY_MARGIN);
}
}
}
--
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