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-rw-r--r--modules/bullet/godot_ray_world_algorithm.cpp15
1 files changed, 8 insertions, 7 deletions
diff --git a/modules/bullet/godot_ray_world_algorithm.cpp b/modules/bullet/godot_ray_world_algorithm.cpp
index 53d0ab7e3c..2ba75b9a98 100644
--- a/modules/bullet/godot_ray_world_algorithm.cpp
+++ b/modules/bullet/godot_ray_world_algorithm.cpp
@@ -5,8 +5,8 @@
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
-/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
@@ -35,12 +35,13 @@
#include <BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h>
-#define RAY_STABILITY_MARGIN 0.1
-
/**
@author AndreaCatania
*/
+// Epsilon to account for floating point inaccuracies
+#define RAY_PENETRATION_DEPTH_EPSILON 0.01
+
GodotRayWorldAlgorithm::CreateFunc::CreateFunc(const btDiscreteDynamicsWorld *world) :
m_world(world) {}
@@ -49,9 +50,9 @@ GodotRayWorldAlgorithm::SwappedCreateFunc::SwappedCreateFunc(const btDiscreteDyn
GodotRayWorldAlgorithm::GodotRayWorldAlgorithm(const btDiscreteDynamicsWorld *world, btPersistentManifold *mf, const btCollisionAlgorithmConstructionInfo &ci, const btCollisionObjectWrapper *body0Wrap, const btCollisionObjectWrapper *body1Wrap, bool isSwapped) :
btActivatingCollisionAlgorithm(ci, body0Wrap, body1Wrap),
+ m_world(world),
m_manifoldPtr(mf),
m_ownManifold(false),
- m_world(world),
m_isSwapped(isSwapped) {}
GodotRayWorldAlgorithm::~GodotRayWorldAlgorithm() {
@@ -102,8 +103,8 @@ void GodotRayWorldAlgorithm::processCollision(const btCollisionObjectWrapper *bo
btScalar depth(ray_shape->getScaledLength() * (btResult.m_closestHitFraction - 1));
- if (depth >= -RAY_STABILITY_MARGIN)
- depth = 0;
+ if (depth > -RAY_PENETRATION_DEPTH_EPSILON)
+ depth = 0.0;
if (ray_shape->getSlipsOnSlope())
resultOut->addContactPoint(btResult.m_hitNormalWorld, btResult.m_hitPointWorld, depth);