public void dragged(int dx, int dy, boolean isControlDown, boolean isShiftDown) {
if (camera instanceof edu.cmu.cs.stage3.alice.core.camera.OrthographicCamera) {
if ((dx != 0) || (dy != 0)) {
double divisor = isShiftDown ? 1000.0 : 50.0;
double scaleFactor;
if (Math.abs(dx) > Math.abs(dy)) {
scaleFactor = 1.0 - ((double) dx) / divisor;
} else {
scaleFactor = 1.0 - ((double) dy) / divisor;
}
edu.cmu.cs.stage3.alice.core.camera.OrthographicCamera orthoCamera =
(edu.cmu.cs.stage3.alice.core.camera.OrthographicCamera) camera;
renderTarget.getAWTComponent().getSize(renderSize);
double oldMinY = orthoCamera.minimumY.getNumberValue().doubleValue();
double oldMaxY = orthoCamera.maximumY.getNumberValue().doubleValue();
double oldPosX = orthoCamera.getPosition().x;
double oldPosY = orthoCamera.getPosition().y;
double oldHeight = oldMaxY - oldMinY;
double pixelHeight = oldHeight / renderSize.getHeight();
// (pressDX,pressDY) is vector from camera position to clicked point in world space
double pressDX = (pressPoint.getX() - (renderSize.getWidth() / 2.0)) * pixelHeight;
double pressDY = -(pressPoint.getY() - (renderSize.getHeight() / 2.0)) * pixelHeight;
double pressX = oldPosX + pressDX;
double pressY = oldPosY + pressDY;
double newPosX = pressX - scaleFactor * pressDX;
double newPosY = pressY - scaleFactor * pressDY;
double newHeight = oldHeight * scaleFactor;
double newMinY = -newHeight / 2.0;
double newMaxY = -newMinY;
orthoCamera.setPositionRightNow(newPosX, newPosY, 0.0);
orthoCamera.minimumY.set(new Double(newMinY));
orthoCamera.maximumY.set(new Double(newMaxY));
}
}
}
public void dragged(int dx, int dy, boolean isControlDown, boolean isShiftDown) {
if (pickedTransformable != null) {
boolean controlDown = isControlDown;
boolean shiftDown = isShiftDown;
double deltaFactor;
if (camera instanceof edu.cmu.cs.stage3.alice.core.camera.OrthographicCamera) {
edu.cmu.cs.stage3.alice.core.camera.OrthographicCamera orthoCamera =
(edu.cmu.cs.stage3.alice.core.camera.OrthographicCamera) camera;
double nearClipHeightInScreen =
renderTarget
.getAWTComponent()
.getHeight(); // TODO: should be viewport, but not working right now
double nearClipHeightInWorld =
orthoCamera.getSceneGraphOrthographicCamera().getPlane()[3]
- orthoCamera.getSceneGraphOrthographicCamera().getPlane()[1];
deltaFactor = nearClipHeightInWorld / nearClipHeightInScreen;
if (controlDown) {
if (shiftDown) {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), camera);
helper.setPositionRightNow(zeroVec, pickedTransformable);
pickedTransformable.rotateRightNow(
edu.cmu.cs.stage3.math.MathUtilities.getXAxis(), -dy * .01, helper);
pickedTransformable.rotateRightNow(
edu.cmu.cs.stage3.math.MathUtilities.getYAxis(), -dx * .01, pickedTransformable);
} else {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), camera);
helper.setPositionRightNow(zeroVec, pickedTransformable);
pickedTransformable.rotateRightNow(
edu.cmu.cs.stage3.math.MathUtilities.getZAxis(), -dx * .01, helper);
}
} else if (shiftDown) {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), camera);
helper.setPositionRightNow(zeroVec, pickedTransformable);
tempVec.x = 0.0;
tempVec.y = -dy * deltaFactor;
tempVec.z = 0.0;
pickedTransformable.moveRightNow(tempVec, helper);
} else {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), camera);
helper.setPositionRightNow(zeroVec, pickedTransformable);
tempVec.x = dx * deltaFactor;
tempVec.y = -dy * deltaFactor;
tempVec.z = 0.0;
pickedTransformable.moveRightNow(tempVec, helper);
}
} else {
double projectionMatrix11 =
renderTarget.getProjectionMatrix(camera.getSceneGraphCamera()).getElement(1, 1);
double nearClipDist = camera.nearClippingPlaneDistance.doubleValue();
double nearClipHeightInWorld = 2 * (nearClipDist / projectionMatrix11);
double nearClipHeightInScreen =
renderTarget
.getAWTComponent()
.getHeight(); // TODO: should be viewport, but not working right now
double pixelHeight = nearClipHeightInWorld / nearClipHeightInScreen;
// double pixelHeight = nearClipHeightInWorld/300;
double objectDist = pickedTransformable.getPosition(camera).getLength();
deltaFactor = (objectDist * pixelHeight) / nearClipDist;
if (controlDown) {
if (shiftDown) {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), camera);
helper.setPositionRightNow(zeroVec, pickedTransformable);
pickedTransformable.rotateRightNow(
edu.cmu.cs.stage3.math.MathUtilities.getXAxis(), -dy * .01, helper);
pickedTransformable.rotateRightNow(
edu.cmu.cs.stage3.math.MathUtilities.getYAxis(), -dx * .01, pickedTransformable);
} else {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), world);
helper.setPositionRightNow(zeroVec, pickedTransformable);
pickedTransformable.rotateRightNow(
edu.cmu.cs.stage3.math.MathUtilities.getYAxis(), -dx * .01, helper);
}
} else if (shiftDown) {
helper.setTransformationRightNow(
edu.cmu.cs.stage3.math.MathUtilities.createIdentityMatrix4d(), world);
helper.setPositionRightNow(zeroVec, pickedTransformable);
tempVec.x = 0.0;
tempVec.y = -dy * deltaFactor;
tempVec.z = 0.0;
pickedTransformable.moveRightNow(tempVec, helper);
} else {
javax.vecmath.Matrix4d cameraTransformation =
camera.getSceneGraphTransformable().getAbsoluteTransformation();
cameraUp.x = cameraTransformation.m10;
cameraUp.y = cameraTransformation.m11;
cameraUp.z = cameraTransformation.m12;
cameraForward.x = cameraTransformation.m20;
cameraForward.y = cameraTransformation.m21;
cameraForward.z = cameraTransformation.m22;
helper.setPositionRightNow(zeroVec, pickedTransformable);
if (Math.abs(cameraForward.y) < Math.abs(cameraUp.y)) { // if we're looking mostly level
cameraForward.y = 0.0;
helper.setOrientationRightNow(cameraForward, cameraUp, world);
} else { // if we're looking mostly up or down
cameraUp.y = 0.0;
cameraForward.negate();
helper.setOrientationRightNow(cameraUp, cameraForward, world);
}
tempVec.x = dx * deltaFactor;
tempVec.y = 0.0;
tempVec.z = -dy * deltaFactor;
pickedTransformable.moveRightNow(tempVec, helper);
}
}
}
}
