85 lines
3.0 KiB
Kotlin
85 lines
3.0 KiB
Kotlin
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package xyz.r0r5chach.dermy_app.map
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import com.badlogic.gdx.Gdx
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import com.badlogic.gdx.graphics.PerspectiveCamera
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import com.badlogic.gdx.graphics.g3d.ModelInstance
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import com.badlogic.gdx.graphics.g3d.model.MeshPart
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import com.badlogic.gdx.graphics.g3d.utils.CameraInputController
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import com.badlogic.gdx.math.Intersector
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import com.badlogic.gdx.math.Vector3
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import xyz.r0r5chach.dermy_app.map.locations.BodyPart
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import xyz.r0r5chach.dermy_app.map.locations.Location
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import xyz.r0r5chach.dermy_app.map.locations.Side
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import kotlin.math.abs
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import kotlin.properties.Delegates
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class MapCameraController(
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camera: PerspectiveCamera?,
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var modelInstance: ModelInstance?
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) : CameraInputController(camera) {
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private var initialX: Int = 0
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private var initialY: Int = 0
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private var selectedLocation: Location by Delegates.observable(Location(Side.NONE, BodyPart.NONE)) { _, _, newValue ->
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notifyObservers(newValue)
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}
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private val observers = mutableListOf<(Location) -> Unit>()
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init {
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this.pinchZoomFactor = 25f
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}
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fun addObserver(observer: (Location) -> Unit) {
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observers.add(observer)
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}
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private fun notifyObservers(newValue: Location) {
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for (observer in observers) {
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observer(newValue)
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}
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}
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override fun touchDown(screenX: Int, screenY: Int, pointer: Int, button: Int): Boolean {
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initialX = screenX
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initialY = screenY
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return super.touchDown(screenX, screenY, pointer, button)
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}
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override fun touchUp(screenX: Int, screenY: Int, pointer: Int, button: Int): Boolean {
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if (abs((initialX - screenX).toDouble()) < 10 && abs((initialY - screenY).toDouble()) < 10) {
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handleClick()
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}
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return super.touchUp(screenX, screenY, pointer, button)
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}
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private fun handleClick() {
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if (modelInstance != null) {
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val selectionRay = camera.getPickRay(Gdx.input.x.toFloat(), Gdx.input.y.toFloat())
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var closestDistance = Float.MAX_VALUE
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var closestPart: MeshPart? = null
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val meshes = modelInstance!!.model.meshParts
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for (part in meshes) {
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val bounds = part.mesh.calculateBoundingBox()
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bounds.mul(modelInstance!!.transform)
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val intersection = Vector3()
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if (Intersector.intersectRayBounds(selectionRay, bounds, intersection)) {
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val distance = selectionRay.origin.dst(intersection)
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if (distance < closestDistance) {
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closestDistance = distance
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closestPart = part
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}
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}
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}
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val id = closestPart?.id
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val side = when (id?.get(0)) {
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'L' -> Side.LEFT
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'R' -> Side.RIGHT
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else -> Side.LEFT
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}
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val bodyPart = BodyPart.valueOf(id!!.substring(1).uppercase())
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selectedLocation = Location(side, bodyPart)
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}
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}
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}
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