package com.jme3.scene.plugins.blender.constraints.definitions;
import com.jme3.animation.Bone;
import com.jme3.animation.Skeleton;
import com.jme3.math.Matrix4f;
import com.jme3.math.Transform;
import com.jme3.scene.plugins.blender.BlenderContext;
import com.jme3.scene.plugins.blender.BlenderContext.LoadedFeatureDataType;
import com.jme3.scene.plugins.blender.animations.BoneContext;
import com.jme3.scene.plugins.blender.constraints.ConstraintHelper;
import com.jme3.scene.plugins.blender.constraints.ConstraintHelper.Space;
import com.jme3.scene.plugins.blender.file.Pointer;
import com.jme3.scene.plugins.blender.file.Structure;
import com.jme3.scene.plugins.blender.objects.ObjectHelper;
import com.jme3.util.TempVars;
/**
* This class represents 'Trans like' constraint type in blender.
*
* @author Marcin Roguski (Kaelthas)
*/
public class ConstraintDefinitionTransLike extends ConstraintDefinition {
private Long targetOMA;
private String subtargetName;
public ConstraintDefinitionTransLike(Structure constraintData, Long ownerOMA, BlenderContext blenderContext) {
super(constraintData, ownerOMA, blenderContext);
Pointer pTarget = (Pointer) constraintData.getFieldValue("tar");
targetOMA = pTarget.getOldMemoryAddress();
Object subtarget = constraintData.getFieldValue("subtarget");
if (subtarget != null) {
subtargetName = subtarget.toString();
}
}
@Override
public void bake(Space ownerSpace, Space targetSpace, Transform targetTransform, float influence) {
Object target = this.getTarget();// Bone or Node
Object owner = this.getOwner();// Bone or Node
if (!target.getClass().equals(owner.getClass())) {
ConstraintHelper constraintHelper = blenderContext.getHelper(ConstraintHelper.class);
TempVars tempVars = TempVars.get();
Matrix4f m = constraintHelper.toMatrix(targetTransform, tempVars.tempMat4);
tempVars.tempMat42.set(BoneContext.BONE_ARMATURE_TRANSFORMATION_MATRIX);
if (target instanceof Bone) {
tempVars.tempMat42.invertLocal();
}
m = m.multLocal(tempVars.tempMat42);
tempVars.release();
targetTransform = new Transform(m.toTranslationVector(), m.toRotationQuat(), m.toScaleVector());
}
this.applyOwnerTransform(targetTransform, ownerSpace);
}
/**
* @return the target feature; it is either Node or Bone (vertex group subtarger is not yet supported)
*/
private Object getTarget() {
Object target = blenderContext.getLoadedFeature(targetOMA, LoadedFeatureDataType.LOADED_FEATURE);
if (subtargetName != null && blenderContext.getMarkerValue(ObjectHelper.ARMATURE_NODE_MARKER, target) != null) {
Skeleton skeleton = blenderContext.getSkeleton(targetOMA);
target = skeleton.getBone(subtargetName);
}
return target;
}
@Override
public String getConstraintTypeName() {
return "Copy transforms";
}
}