115 lines
4.0 KiB
Kotlin
115 lines
4.0 KiB
Kotlin
/*
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* Copyright (c) 2019, norangebit
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*
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* This file is part of solar-system.
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*
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* solar-system is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* solar-system is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with solar-system. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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package it.norangeb.solarsystem
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import android.os.Bundle
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import android.support.v7.app.AppCompatActivity
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import android.view.MotionEvent
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import com.google.ar.core.HitResult
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import com.google.ar.core.Plane
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import com.google.ar.sceneform.Node
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import com.google.ar.sceneform.math.Vector3
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import com.google.ar.sceneform.rendering.ModelRenderable
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import com.google.ar.sceneform.ux.ArFragment
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import kotlinx.coroutines.*
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class MainActivity : AppCompatActivity() {
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private val TAG = MainActivity::class.java.canonicalName
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private val AU_TO_METERS = 1.1f
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private lateinit var arFragment: ArFragment
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private var isModelAdded = false
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private lateinit var renderablePlanets: Map<Planet, ModelRenderable>
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private lateinit var loadPlanetsJob: Job
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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if (!checkIsSupportedDeviceOrFinish(this, TAG))
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return
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setContentView(R.layout.activity_main)
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arFragment = supportFragmentManager.findFragmentById(R.id.ar_fragment) as ArFragment
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loadPlanetsJob = GlobalScope.launch(Dispatchers.Main) {
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renderablePlanets = loadPlanets(this@MainActivity)
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}
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arFragment.setOnTapArPlaneListener(this::placeSolarSystem)
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}
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private fun placeSolarSystem(hitResult: HitResult, plane: Plane, motionEvent: MotionEvent) {
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if (isModelAdded)
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return
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GlobalScope.launch(Dispatchers.Main) {
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loadPlanetsJob.join()
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val solarSystem = createSolarSystem(renderablePlanets)
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addNodeToScene(arFragment, hitResult.createAnchor(), solarSystem)
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isModelAdded = true
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}
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}
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private fun createSolarSystem(renderablePlanets: Map<Planet, ModelRenderable>): Node {
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val base = Node()
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val sun = Node()
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sun.setParent(base)
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sun.localPosition = Vector3(0.0f, 0.5f, 0.0f)
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val sunVisual = Node()
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sunVisual.setParent(sun)
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sunVisual.renderable = renderablePlanets[Planet.SUN]
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sunVisual.localScale = Vector3(0.5f, 0.5f, 0.5f)
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createPlanetNode(Planet.MERCURY, sun, 0.4f, 47f, renderablePlanets)
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createPlanetNode(Planet.VENUS, sun, 0.7f, 35f, renderablePlanets)
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createPlanetNode(Planet.EARTH, sun, 1.0f, 29f, renderablePlanets)
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createPlanetNode(Planet.MARS, sun, 1.5f, 24f, renderablePlanets)
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createPlanetNode(Planet.JUPITER, sun, 2.2f, 13f, renderablePlanets)
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createPlanetNode(Planet.SATURN, sun, 3.5f, 9f, renderablePlanets)
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createPlanetNode(Planet.URANUS, sun, 5.2f, 7f, renderablePlanets)
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createPlanetNode(Planet.NEPTUNE, sun, 6.1f, 5f, renderablePlanets)
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return base
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}
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private fun createPlanetNode(
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planet: Planet,
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parent: Node,
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auFromParent: Float,
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orbitDegreesPerSecond: Float,
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renderablePlanets: Map<Planet, ModelRenderable>
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) {
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val orbit = RotationNode()
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orbit.degreesPerSecond = orbitDegreesPerSecond
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orbit.setParent(parent)
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val renderable = renderablePlanets[planet] ?: return
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val planetNode = PlanetNode(renderable)
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planetNode.setParent(orbit)
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planetNode.localPosition = Vector3(AU_TO_METERS * auFromParent, 0.0f, 0.0f)
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}
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}
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