[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [16871] trunk/blender/source: BGE patch: new force field constraint actuator
Benoit Bolsee
benoit.bolsee at online.be
Wed Oct 1 21:16:14 CEST 2008
Revision: 16871
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=16871
Author: ben2610
Date: 2008-10-01 21:16:13 +0200 (Wed, 01 Oct 2008)
Log Message:
-----------
BGE patch: new force field constraint actuator
A new type of constraint actuator is available: Force field.
It provides a very similar service to the Fh material feature
but with some specificities:
- It is defined at the object level: each object can have
different settings and you don't need to use material.
- It can be applied in all 6 directions and not just -Z.
- It can be enabled/disabled easily (it's an actuator).
- You can have multiple force fields active at the same time
on the same object in different direction (think of a
space ship in a tunnel with a repulsive force field
on each wall).
- You can have a different damping for the rotation.
Besides that it provides the same dynamic behavior and the
parameters are self explanatory.
It works by adapting the linear and angular velocity: the
dynamic is independent of the mass. It is compatible with
all other motion actuators.
Note: linear and anysotropic friction is not yet implemented,
the only friction will come from the object damping parameters.
Support for friction will be added in a future revision.
Modified Paths:
--------------
trunk/blender/source/blender/makesdna/DNA_actuator_types.h
trunk/blender/source/blender/src/buttons_logic.c
trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp
trunk/blender/source/gameengine/Ketsji/KX_ConstraintActuator.cpp
trunk/blender/source/gameengine/Ketsji/KX_ConstraintActuator.h
Modified: trunk/blender/source/blender/makesdna/DNA_actuator_types.h
===================================================================
--- trunk/blender/source/blender/makesdna/DNA_actuator_types.h 2008-10-01 18:00:13 UTC (rev 16870)
+++ trunk/blender/source/blender/makesdna/DNA_actuator_types.h 2008-10-01 19:16:13 UTC (rev 16871)
@@ -369,6 +369,7 @@
#define ACT_CONST_PERMANENT 256
#define ACT_CONST_DISTANCE 512
#define ACT_CONST_LOCAL 1024
+#define ACT_CONST_DOROTFH 2048
/* constraint mode */
#define ACT_CONST_DIRPX 1
@@ -382,6 +383,7 @@
#define ACT_CONST_TYPE_LOC 0
#define ACT_CONST_TYPE_DIST 1
#define ACT_CONST_TYPE_ORI 2
+#define ACT_CONST_TYPE_FH 3
/* editObjectActuator->type */
#define ACT_EDOB_ADD_OBJECT 0
Modified: trunk/blender/source/blender/src/buttons_logic.c
===================================================================
--- trunk/blender/source/blender/src/buttons_logic.c 2008-10-01 18:00:13 UTC (rev 16870)
+++ trunk/blender/source/blender/src/buttons_logic.c 2008-10-01 19:16:13 UTC (rev 16871)
@@ -2214,8 +2214,46 @@
uiDefButS(block, NUM, 0, "time", xco+10, yco-84, 70, 19, &(coa->time), 0.0, 1000.0, 0, 0, "Maximum activation time in frame, 0 for unlimited");
uiDefButF(block, NUM, 0, "min", xco+80, yco-84, (width-115)/2, 19, &(coa->minloc[0]), 0.0, 180.0, 10, 1, "Minimum angle (in degree) to maintain with target direction. No correction is done if angle with target direction is between min and max");
uiDefButF(block, NUM, 0, "max", xco+80+(width-115)/2, yco-84, (width-115)/2, 19, &(coa->maxloc[0]), 0.0, 180.0, 10, 1, "Maximum angle (in degree) allowed with target direction. No correction is done if angle with target direction is between min and max");
+ } else if (coa->type == ACT_CONST_TYPE_FH) {
+ ysize= 106;
+
+ glRects(xco, yco-ysize, xco+width, yco);
+ uiEmboss((float)xco, (float)yco-ysize, (float)xco+width, (float)yco, 1);
+
+ str= "Direction %t|None %x0|X axis %x1|Y axis %x2|Z axis %x4|-X axis %x8|-Y axis %x16|-Z axis %x32";
+ uiDefButS(block, MENU, B_REDR, str, xco+10, yco-65, 70, 19, &coa->mode, 0.0, 0.0, 0, 0, "Set the direction of the ray (in world coordinate)");
+
+ if(coa->mode & (ACT_CONST_DIRPX|ACT_CONST_DIRNX)) fp= coa->minloc;
+ else if(coa->mode & (ACT_CONST_DIRPY|ACT_CONST_DIRNY)) fp= coa->minloc+1;
+ else fp= coa->minloc+2;
+
+ uiDefButF(block, NUM, 0, "damp", xco+10, yco-45, (width-70)/2, 19, &coa->maxrot[0], 0.0, 1.0, 1, 0, "Damping factor of the Fh spring force");
+ uiDefButF(block, NUM, 0, "dist", xco+10+(width-70)/2, yco-45, (width-70)/2, 19, fp, 0.010, 2000.0, 10, 0, "Height of the Fh area");
+ uiDefButBitS(block, TOG, ACT_CONST_DOROTFH, 0, "Rot Fh", xco+10+(width-70), yco-45, 50, 19, &coa->flag, 0.0, 0.0, 0, 0, "Keep object axis parallel to normal");
+
+ uiDefButF(block, NUMSLI, 0, "Fh ", xco+80, yco-65, (width-115), 19, fp+3, 0.0, 1.0, 0, 0, "Spring force within the Fh area");
+ uiDefButBitS(block, TOG, ACT_CONST_NORMAL, 0, "N", xco+80+(width-115), yco-65, 25, 19,
+ &coa->flag, 0.0, 0.0, 0, 0, "Add a horizontal spring force on slopes");
+ uiDefButBitS(block, TOG, ACT_CONST_MATERIAL, B_REDR, "M/P", xco+10, yco-84, 40, 19,
+ &coa->flag, 0.0, 0.0, 0, 0, "Detect material instead of property");
+ if (coa->flag & ACT_CONST_MATERIAL)
+ {
+ uiDefBut(block, TEX, 1, "Material:", xco + 50, yco-84, (width-60), 19,
+ coa->matprop, 0, 31, 0, 0,
+ "Ray detects only Objects with this material");
+ }
+ else
+ {
+ uiDefBut(block, TEX, 1, "Property:", xco + 50, yco-84, (width-60), 19,
+ coa->matprop, 0, 31, 0, 0,
+ "Ray detect only Objects with this property");
+ }
+ uiDefButBitS(block, TOG, ACT_CONST_PERMANENT, 0, "PER", xco+10, yco-103, 40, 19,
+ &coa->flag, 0.0, 0.0, 0, 0, "Persistent actuator: stays active even if ray does not reach target");
+ uiDefButS(block, NUM, 0, "time", xco+50, yco-103, 90, 19, &(coa->time), 0.0, 1000.0, 0, 0, "Maximum activation time in frame, 0 for unlimited");
+ uiDefButF(block, NUM, 0, "rotDamp", xco+140, yco-103, (width-150), 19, &coa->maxrot[1], 0.0, 1.0, 1, 0, "Use a different damping for rotation");
}
- str= "Constraint Type %t|Location %x0|Distance %x1|Orientation %x2";
+ str= "Constraint Type %t|Location %x0|Distance %x1|Orientation %x2|Force field %x3";
but = uiDefButS(block, MENU, B_REDR, str, xco+40, yco-23, (width-80), 19, &coa->type, 0.0, 0.0, 0, 0, "");
yco-= ysize;
break;
Modified: trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp
===================================================================
--- trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp 2008-10-01 18:00:13 UTC (rev 16870)
+++ trunk/blender/source/gameengine/Converter/KX_ConvertActuators.cpp 2008-10-01 19:16:13 UTC (rev 16871)
@@ -719,6 +719,40 @@
break;
}
prop = conact->matprop;
+ } else if (conact->type == ACT_CONST_TYPE_FH) {
+ switch (conact->mode) {
+ case ACT_CONST_DIRPX:
+ locrot = KX_ConstraintActuator::KX_ACT_CONSTRAINT_FHPX;
+ min = conact->minloc[0];
+ max = conact->maxloc[0];
+ break;
+ case ACT_CONST_DIRPY:
+ locrot = KX_ConstraintActuator::KX_ACT_CONSTRAINT_FHPY;
+ min = conact->minloc[1];
+ max = conact->maxloc[1];
+ break;
+ case ACT_CONST_DIRPZ:
+ locrot = KX_ConstraintActuator::KX_ACT_CONSTRAINT_FHPZ;
+ min = conact->minloc[2];
+ max = conact->maxloc[2];
+ break;
+ case ACT_CONST_DIRNX:
+ locrot = KX_ConstraintActuator::KX_ACT_CONSTRAINT_FHNX;
+ min = conact->minloc[0];
+ max = conact->maxloc[0];
+ break;
+ case ACT_CONST_DIRNY:
+ locrot = KX_ConstraintActuator::KX_ACT_CONSTRAINT_FHNY;
+ min = conact->minloc[1];
+ max = conact->maxloc[1];
+ break;
+ case ACT_CONST_DIRNZ:
+ locrot = KX_ConstraintActuator::KX_ACT_CONSTRAINT_FHNZ;
+ min = conact->minloc[2];
+ max = conact->maxloc[2];
+ break;
+ }
+ prop = conact->matprop;
} else {
switch (conact->flag) {
case ACT_CONST_LOCX:
Modified: trunk/blender/source/gameengine/Ketsji/KX_ConstraintActuator.cpp
===================================================================
--- trunk/blender/source/gameengine/Ketsji/KX_ConstraintActuator.cpp 2008-10-01 18:00:13 UTC (rev 16870)
+++ trunk/blender/source/gameengine/Ketsji/KX_ConstraintActuator.cpp 2008-10-01 19:16:13 UTC (rev 16871)
@@ -112,7 +112,7 @@
bool KX_ConstraintActuator::RayHit(KX_ClientObjectInfo* client, KX_RayCast* result, void * const data)
{
- KX_GameObject* hitKXObj = client->m_gameobject;
+ m_hitObject = client->m_gameobject;
bool bFound = false;
@@ -131,7 +131,7 @@
}
else
{
- bFound = hitKXObj->GetProperty(m_property) != NULL;
+ bFound = m_hitObject->GetProperty(m_property) != NULL;
}
}
// update the hit status
@@ -372,7 +372,7 @@
// logically we should cancel the speed along the ray direction as we set the
// position along that axis
spc = obj->GetPhysicsController();
- if (spc) {
+ if (spc && spc->IsDyna()) {
MT_Vector3 linV = spc->GetLinearVelocity();
// cancel the projection along the ray direction
MT_Scalar fallspeed = linV.dot(direction);
@@ -390,6 +390,110 @@
}
}
break;
+ case KX_ACT_CONSTRAINT_FHPX:
+ case KX_ACT_CONSTRAINT_FHPY:
+ case KX_ACT_CONSTRAINT_FHPZ:
+ case KX_ACT_CONSTRAINT_FHNX:
+ case KX_ACT_CONSTRAINT_FHNY:
+ case KX_ACT_CONSTRAINT_FHNZ:
+ switch (m_locrot) {
+ case KX_ACT_CONSTRAINT_FHPX:
+ normal[0] = -rotation[0][0];
+ normal[1] = -rotation[1][0];
+ normal[2] = -rotation[2][0];
+ direction = MT_Vector3(1.0,0.0,0.0);
+ break;
+ case KX_ACT_CONSTRAINT_FHPY:
+ normal[0] = -rotation[0][1];
+ normal[1] = -rotation[1][1];
+ normal[2] = -rotation[2][1];
+ direction = MT_Vector3(0.0,1.0,0.0);
+ break;
+ case KX_ACT_CONSTRAINT_FHPZ:
+ normal[0] = -rotation[0][2];
+ normal[1] = -rotation[1][2];
+ normal[2] = -rotation[2][2];
+ direction = MT_Vector3(0.0,0.0,1.0);
+ break;
+ case KX_ACT_CONSTRAINT_FHNX:
+ normal[0] = rotation[0][0];
+ normal[1] = rotation[1][0];
+ normal[2] = rotation[2][0];
+ direction = MT_Vector3(-1.0,0.0,0.0);
+ break;
+ case KX_ACT_CONSTRAINT_FHNY:
+ normal[0] = rotation[0][1];
+ normal[1] = rotation[1][1];
+ normal[2] = rotation[2][1];
+ direction = MT_Vector3(0.0,-1.0,0.0);
+ break;
+ case KX_ACT_CONSTRAINT_FHNZ:
+ normal[0] = rotation[0][2];
+ normal[1] = rotation[1][2];
+ normal[2] = rotation[2][2];
+ direction = MT_Vector3(0.0,0.0,-1.0);
+ break;
+ }
+ normal.normalize();
+ {
+ PHY_IPhysicsEnvironment* pe = obj->GetPhysicsEnvironment();
+ KX_IPhysicsController *spc = obj->GetPhysicsController();
+
+ if (!pe) {
+ std::cout << "WARNING: Constraint actuator " << GetName() << ": There is no physics environment!" << std::endl;
+ goto CHECK_TIME;
+ }
+ if (!spc || !spc->IsDyna()) {
+ // the object is not dynamic, it won't support setting speed
+ goto CHECK_TIME;
+ }
+ m_hitObject = NULL;
+ // distance of Fh area is stored in m_minimum
+ MT_Point3 topoint = position + (m_minimumBound+spc->GetRadius()) * direction;
+ KX_RayCast::Callback<KX_ConstraintActuator> callback(this,spc);
+ result = KX_RayCast::RayTest(pe, position, topoint, callback);
+ // we expect a hit object
+ if (!m_hitObject)
+ result = false;
+ if (result)
+ {
+ MT_Vector3 newnormal = callback.m_hitNormal;
+ // compute new position & orientation
+ MT_Scalar distance = (callback.m_hitPoint-position).length()-spc->GetRadius();
+ // estimate the velocity of the hit point
+ MT_Point3 relativeHitPoint;
+ relativeHitPoint = (callback.m_hitPoint-m_hitObject->NodeGetWorldPosition());
+ MT_Vector3 velocityHitPoint = m_hitObject->GetVelocity(relativeHitPoint);
+ MT_Vector3 relativeVelocity = spc->GetLinearVelocity() - velocityHitPoint;
+ MT_Scalar relativeVelocityRay = direction.dot(relativeVelocity);
+ MT_Scalar springExtent = 1.0 - distance/m_minimumBound;
+ // Fh force is stored in m_maximum
+ MT_Scalar springForce = springExtent * m_maximumBound;
+ // damping is stored in m_refDirection [0] = damping, [1] = rot damping
+ MT_Scalar springDamp = relativeVelocityRay * m_refDirection[0];
@@ Diff output truncated at 10240 characters. @@
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