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authorTiger Wang <ziwei.tiger@hotmail.co.uk>2014-09-13 23:49:05 +0200
committerTiger Wang <ziwei.tiger@hotmail.co.uk>2014-09-13 23:49:05 +0200
commit52d86728e69023f8d70c84f019335b713453aa2d (patch)
tree04bf36a4277dd07557aa90968e615ef511adda55
parentMerge pull request #1353 from mc-server/Effects (diff)
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-rw-r--r--src/Entities/Entity.cpp41
-rw-r--r--src/Entities/Entity.h6
2 files changed, 31 insertions, 16 deletions
diff --git a/src/Entities/Entity.cpp b/src/Entities/Entity.cpp
index 6969501a3..42b207c48 100644
--- a/src/Entities/Entity.cpp
+++ b/src/Entities/Entity.cpp
@@ -927,12 +927,13 @@ void cEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
float fallspeed;
if (IsBlockWater(BlockIn))
{
- fallspeed = m_Gravity * a_Dt / 3; // Fall 3x slower in water.
+ fallspeed = m_Gravity * a_Dt / 3; // Fall 3x slower in water
+ ApplyFriction(NextSpeed, 0.7, a_Dt);
}
else if (BlockIn == E_BLOCK_COBWEB)
{
NextSpeed.y *= 0.05; // Reduce overall falling speed
- fallspeed = 0; // No falling.
+ fallspeed = 0; // No falling
}
else
{
@@ -943,20 +944,7 @@ void cEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
}
else
{
- // Friction on ground
- if (NextSpeed.SqrLength() > 0.0004f)
- {
- NextSpeed.x *= 0.7f / (1 + a_Dt);
- if (fabs(NextSpeed.x) < 0.05)
- {
- NextSpeed.x = 0;
- }
- NextSpeed.z *= 0.7f / (1 + a_Dt);
- if (fabs(NextSpeed.z) < 0.05)
- {
- NextSpeed.z = 0;
- }
- }
+ ApplyFriction(NextSpeed, 0.7, a_Dt);
}
// Adjust X and Z speed for COBWEB temporary. This speed modification should be handled inside block handlers since we
@@ -1062,6 +1050,27 @@ void cEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
+void cEntity::ApplyFriction(Vector3d & a_Speed, double a_SlowdownMultiplier, float a_Dt)
+{
+ if (a_Speed.SqrLength() > 0.0004f)
+ {
+ a_Speed.x *= a_SlowdownMultiplier / (1 + a_Dt);
+ if (fabs(a_Speed.x) < 0.05)
+ {
+ a_Speed.x = 0;
+ }
+ a_Speed.z *= a_SlowdownMultiplier / (1 + a_Dt);
+ if (fabs(a_Speed.z) < 0.05)
+ {
+ a_Speed.z = 0;
+ }
+ }
+}
+
+
+
+
+
void cEntity::TickBurning(cChunk & a_Chunk)
{
// Remember the current burning state:
diff --git a/src/Entities/Entity.h b/src/Entities/Entity.h
index b9c280b6b..6bc070dcc 100644
--- a/src/Entities/Entity.h
+++ b/src/Entities/Entity.h
@@ -535,6 +535,12 @@ protected:
virtual void Destroyed(void) {} // Called after the entity has been destroyed
+ /** Applies friction to an entity
+ @param a_Speed The speed vector to apply changes to
+ @param a_SlowdownMultiplier The factor to reduce the speed by
+ */
+ static void ApplyFriction(Vector3d & a_Speed, double a_SlowdownMultiplier, float a_Dt);
+
/** Called in each tick to handle air-related processing i.e. drowning */
virtual void HandleAir(void);