# File: graphics/dpdl3DJavaFX_molecule.h

#

# Example: Small Dpdl app that uses JavaFX library to render and animate chemical molecules in 3D.

# This code makes use of a custom java class implementation 'DpdlTestForm.java' located in the folder './java'

# The example is has bee ported from the Oracle javafx graphics tutorials at https://docs.oracle.com/javase/8/javafx/graphics-tutorial/sampleapp3d.htm#CJAHFAF

#

# Author: A.Costa

# e-mail: [email protected]

#

#

import('thread')

double CAMERA_INITIAL_DISTANCE = -450.0d

double CAMERA_INITIAL_X_ANGLE = 70.0d

double CAMERA_INITIAL_Y_ANGLE = 320.0d

double CAMERA_NEAR_CLIP = 0.1d

double CAMERA_FAR_CLIP = 10000.0d

double AXIS_LENGTH = 250.0d

double HYDROGEN_ANGLE = 104.5d

double CONTROL_MULTIPLIER = 0.1d

double SHIFT_MULTIPLIER = 10.0d

double MOUSE_SPEED = 0.1d

double ROTATION_SPEED = 2.0d

double TRACK_SPEED = 0.3d

double mousePosX

double mousePosY

double mouseOldX

double mouseOldY

double mouseDeltaX

double mouseDeltaY

func dpdl_javafx_start(object stage)

stage.setTitle("Dpdl Sample Application (Molecule 3D)")

stage.setScene(scene)

stage.show()

scene.setCamera(camera)

end

func handleKeyEvent(object key)

object key_code = key.getCode()

int code = key_code.getCode()

if(code == 90)

cam2Trans.setX(0.0d)

cam2Trans.setY(0.0d)

camera.setTranslateZ(CAMERA_INITIAL_DISTANCE)

camRotY.setAngle(CAMERA_INITIAL_Y_ANGLE)

camRotX.setAngle(CAMERA_INITIAL_X_ANGLE)

elseif(code == 88)

axisGroup.setVisible(!axisGroup.isVisible())

elseif(code == 86)

moleculeGroup.setVisible(!moleculeGroup.isVisible())

else

println("unkown key command: " + code + " press 'Z' 'V' or 'X' ")

fi

end

func handleMouseEvent(object me)

mouseOldX = mousePosX

mouseOldY = mousePosY

mousePosX = me.getSceneX()

mousePosY = me.getSceneY()

mouseDeltaX = (mousePosX - mouseOldX)

mouseDeltaY = (mousePosY - mouseOldY)

double modifier = 1.0d

if (me.isControlDown())

modifier = CONTROL_MULTIPLIER

fi

if (me.isShiftDown())

modifier = SHIFT_MULTIPLIER

fi

if (me.isPrimaryButtonDown())

camRotY.setAngle(camRotY.getAngle() - (mouseDeltaX * MOUSE_SPEED * modifier * ROTATION_SPEED))

camRotX.setAngle(camRotX.getAngle() + (mouseDeltaY * MOUSE_SPEED * modifier * ROTATION_SPEED))

elseif (me.isSecondaryButtonDown())

double z = camera.getTranslateZ()

double newZ = z + (mouseDeltaX * MOUSE_SPEED * modifier)

camera.setTranslateZ(newZ)

elseif (me.isMiddleButtonDown())

cam2Trans.setX(cam2Trans.getX() + (mouseDeltaX * MOUSE_SPEED * modifier * TRACK_SPEED))

cam2Trans.setY(cam2Trans.getY() + (mouseDeltaY * MOUSE_SPEED * modifier * TRACK_SPEED))

else

println("unknown mouse command")

fi

end

func buildCamera()

println("constructing camera...")

object root_child = root.getChildren()

root_child.add(cameraXform)

object cameraxform_child = cameraXform.getChildren()

cameraxform_child.add(cameraXform2)

object cameraxform2_child = cameraXform2.getChildren()

cameraxform2_child.add(cameraXform3)

object cameraxform3_child = cameraXform3.getChildren()

cameraxform3_child.add(camera)

cameraXform3.setRotateZ(180.0d)

camera.setNearClip(CAMERA_NEAR_CLIP)

camera.setFarClip(CAMERA_FAR_CLIP)

camera.setTranslateZ(CAMERA_INITIAL_DISTANCE)

cameraXform.setAngleRotRY(CAMERA_INITIAL_Y_ANGLE)

cameraXform.setAngleRotRX(CAMERA_INITIAL_X_ANGLE)

end

func buildAxes()

println("constructing axes...")

object color = getClass("paint.Color")

object redMaterial = loadObj("PhongMaterial")

redMaterial.setDiffuseColor(color.DARKRED)

redMaterial.setSpecularColor(color.RED)

object greenMaterial = loadObj("PhongMaterial")

greenMaterial.setDiffuseColor(color.DARKGREEN)

greenMaterial.setSpecularColor(color.GREEN)

object blueMaterial = loadObj("PhongMaterial")

blueMaterial.setDiffuseColor(color.DARKBLUE)

blueMaterial.setSpecularColor(color.BLUE)

object xAxis = loadObj("shape.Box", AXIS_LENGTH, 1.0d, 1.0d)

object yAxis = loadObj("shape.Box", 1.0d, AXIS_LENGTH, 1.0d)

object zAxis = loadObj("shape.Box", 1.0d, 1.0d, AXIS_LENGTH)

xAxis.setMaterial(redMaterial)

yAxis.setMaterial(greenMaterial)

zAxis.setMaterial(blueMaterial)

axisGroup.addAllTMP3(xAxis, yAxis, zAxis)

bool bv = true

axisGroup.setVisible(bv)

world.addAllTMP1(axisGroup)

end

func buildMolecule()

println("building molecules...")

object color = getClass("paint.Color")

object redMaterial = loadObj("PhongMaterial")

redMaterial.setDiffuseColor(color.DARKRED)

redMaterial.setSpecularColor(color.RED)

object whiteMaterial = loadObj("PhongMaterial")

whiteMaterial.setDiffuseColor(color.WHITE)

whiteMaterial.setSpecularColor(color.LIGHTBLUE)

object greyMaterial = loadObj("PhongMaterial")

greyMaterial.setDiffuseColor(color.DARKGREY)

greyMaterial.setSpecularColor(color.GREY)

object moleculeXform = loadObj("DpdlTestForm")

object oxygenXform = loadObj("DpdlTestForm")

object hydrogen1SideXform = loadObj("DpdlTestForm")

object hydrogen1Xform = loadObj("DpdlTestForm")

object hydrogen2SideXform = loadObj("DpdlTestForm")

object hydrogen2Xform = loadObj("DpdlTestForm")

object oxygenSphere = loadObj("Sphere", 40.0d)

oxygenSphere.setMaterial(redMaterial)

object hydrogen1Sphere = loadObj("Sphere", 30.0d)

hydrogen1Sphere.setMaterial(whiteMaterial)

hydrogen1Sphere.setTranslateX(0.0d)

object hydrogen2Sphere = loadObj("Sphere", 30.0d)

hydrogen2Sphere.setMaterial(whiteMaterial)

hydrogen2Sphere.setTranslateZ(0.0d)

object rotate = getClass("Rotate")

object bond1Cylinder = loadObj("Cylinder", 5.0d, 100.0d)

bond1Cylinder.setMaterial(greyMaterial)

bond1Cylinder.setTranslateX(50.0d)

bond1Cylinder.setRotationAxis(rotate.Z_AXIS)

bond1Cylinder.setRotate(90.0d)

object bond2Cylinder = loadObj("Cylinder", 5.0d, 100.0d)

bond2Cylinder.setMaterial(greyMaterial)

bond2Cylinder.setTranslateX(50.0d)

bond2Cylinder.setRotationAxis(rotate.Z_AXIS)

bond2Cylinder.setRotate(90.0d)

object moleculeXform_child = moleculeXform.getChildren()

moleculeXform_child.add(oxygenXform)

moleculeXform_child.add(hydrogen1SideXform)

moleculeXform_child.add(hydrogen2SideXform)

object oxygenXform_child = oxygenXform.getChildren()

oxygenXform_child.add(oxygenSphere)

object hydrogen1SideXform_child = hydrogen1SideXform.getChildren()

object hydrogen2SideXform_child = hydrogen2SideXform.getChildren()

hydrogen1SideXform_child.add(hydrogen1Xform)

hydrogen2SideXform_child.add(hydrogen2Xform)

object hydrogen1Xform_child = hydrogen1Xform.getChildren()

hydrogen1Xform_child.add(hydrogen1Sphere)

object hydrogen2Xform_child = hydrogen2Xform.getChildren()

hydrogen2Xform_child.add(hydrogen2Sphere)

hydrogen1SideXform_child = hydrogen1SideXform.getChildren()

hydrogen1SideXform_child.add(bond1Cylinder)

hydrogen2SideXform_child = hydrogen2SideXform.getChildren()

hydrogen2SideXform_child.add(bond2Cylinder)

hydrogen1Xform.setTx(100.0d)

hydrogen2Xform.setTx(100.0d)

hydrogen2SideXform.setRotateY(HYDROGEN_ANGLE)

moleculeGroup.addAllTMP1(moleculeXform)

world.addAllTMP1(moleculeGroup)

end

# main

println("starting...")

object runtime = getClass("Platform")

runtime.startup(thread.getRunnable())

object root = loadObj("scene.Group")

object axisGroup = loadObj("DpdlTestForm")

object moleculeGroup = loadObj("DpdlTestForm")

object world = loadObj("DpdlTestForm")

bool b = true

object camera = loadObj("PerspectiveCamera", b)

object cameraXform = loadObj("DpdlTestForm")

object cameraXform2 = loadObj("DpdlTestForm")

object cameraXform3 = loadObj("DpdlTestForm")

object depthtest = getClass("DepthTest")

object color = getClass("paint.Color")

object root_child = root.getChildren()

root_child.add(world)

root.setDepthTest(depthtest.ENABLE)

println("constructing scene...")

buildCamera()

buildAxes()

buildMolecule()

println("loading scene...")

raise(root, "root Group scene is null")

bool bs = true

object scene = loadObj("Scene", root, 1024.0d, 768.0d, bs)

scene.setFill(color.GREY)

println("starting App....")

object app = loadObj("DpdlJavaFXApp")

app.initApp()

# mouse & key event handling

object camRotY = cameraXform.ry

object camRotX = cameraXform.rx

object cam2Trans = cameraXform2.t

object mouse_event_handler = loadObj("MouseEventHandler")

scene.setOnMouseDragged(mouse_event_handler)

object key_event_handler = loadObj("KeyEventHandler")

scene.setOnKeyPressed(key_event_handler)