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301 lines
9.5 KiB
Kotlin
301 lines
9.5 KiB
Kotlin
package com.last.commit.screen
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import com.badlogic.gdx.Gdx
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import com.badlogic.gdx.InputProcessor
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import com.badlogic.gdx.graphics.Color
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import com.badlogic.gdx.graphics.GL20
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import com.badlogic.gdx.graphics.OrthographicCamera
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import com.badlogic.gdx.graphics.Texture
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import com.badlogic.gdx.graphics.g2d.SpriteBatch
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import com.badlogic.gdx.graphics.g2d.TextureRegion
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import com.badlogic.gdx.graphics.glutils.ShapeRenderer
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import com.badlogic.gdx.math.MathUtils
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import com.badlogic.gdx.math.Vector2
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import com.badlogic.gdx.math.Vector3
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import com.badlogic.gdx.utils.Json
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import com.badlogic.gdx.utils.viewport.Viewport
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import com.badlogic.gdx.utils.viewport.StretchViewport
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import com.badlogic.gdx.utils.viewport.FillViewport
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import com.last.commit.Game
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import com.last.commit.Player
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import com.last.commit.audio.GameMusic
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import com.last.commit.config.ActionCommand
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import com.last.commit.config.GameConfig
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import com.last.commit.map.Interactable
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import com.last.commit.map.TimeMap
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import com.last.commit.stages.UIStage
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import kotlin.math.floor
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/** First screen of the application. Displayed after the application is created. */
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class FirstScreen(private val parent: Game) : TimeTravelScreen() {
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val gameState = parent.state
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val viewportSize = 1200f
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private var delta = 0.008f
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private var isColliding = false
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val batch = SpriteBatch()
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val viewport = FillViewport(viewportSize, viewportSize)
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val camera = OrthographicCamera(viewportSize, viewportSize)
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var map: TimeMap
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val playerTexture = Texture("sprites/characters.png")
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val player = Player(TextureRegion(playerTexture, 300, 44, 35, 43), gameState)
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var shapeRenderer = ShapeRenderer()
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val highlightColor = Color(0f, 0f, 1f, 0.5f)
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var pause = true
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var uiStage: UIStage
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init {
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val gameConfig = this.loadGameConfig()
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val randomMap = gameConfig.getRandomMap()
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map = TimeMap(randomMap, gameState)
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this.spawnPlayer()
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this.updateCamera()
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uiStage = UIStage("sprites/genericItems_spritesheet_colored", gameState)
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shapeRenderer.setAutoShapeType(true)
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player.addItemToInventory("drill")
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gameState.soundEngine.play(GameMusic.WORLD_MUSIC, 0.25f)
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viewport.camera = camera
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viewport.apply()
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}
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override fun getInputProcessors(): Array<InputProcessor> {
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return arrayOf(gameState.dialogStage)
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}
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override fun handleKeyInput(action: ActionCommand) {
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if (!pause) {
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when (action) {
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ActionCommand.INTERACT -> {
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openDoor()
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}
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ActionCommand.TIME_TRAVEL -> {
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map.teleport(player)
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}
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ActionCommand.JUMP -> {
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gameState.dialogStage.setTexts("Hello", "Please read the documentation")
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gameState.dialogStage.show()
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}
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else -> {}
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}
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if (action == ActionCommand.OPEN_MENU) {
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//Gdx.app.exit()
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parent.changeScreen(Screens.MAIN_MENU)
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}
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}
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}
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override fun handleMouseInput(screenX: Int, screenY: Int, pointer: Int, button: Int) {
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if (!pause) {
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val mouseCoordinates: Vector2 = toWorldCoordinates(screenX.toFloat(), screenY.toFloat())
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val playerDirection: Vector2 = player.getAbsoluteDirection()
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map.interactWith(playerDirection.x, playerDirection.y, player.getCollider())
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}
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}
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override fun show() {
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// Prepare your screen here.
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resume()
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}
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fun loadGameConfig(): GameConfig {
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val jsonFileHandle = Gdx.files.local("config.json")
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val json = Json()
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return json.fromJson(GameConfig::class.java, jsonFileHandle)
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}
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override fun render(delta: Float) {
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if (!pause) {
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uiStage.act(delta)
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gameState.dialogStage.act(delta)
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handleInput(delta)
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handleMapBorderCollision()
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val mousePosition: Vector2 = getMousePosition()
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player.lookAt(mousePosition)
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batch.projectionMatrix = camera.combined
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batch.begin()
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this.map.render(batch, camera, delta)
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this.player.render(batch)
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batch.end()
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val interactables = map.getInteractablesAt(player.getAbsoluteDirection())
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renderInteractables(interactables)
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uiStage.draw()
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gameState.dialogStage.draw()
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viewport.apply()
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updateCamera()
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}
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}
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fun renderInteractables(interactables: List<Interactable>) {
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Gdx.gl.glEnable(GL20.GL_BLEND)
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Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA)
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shapeRenderer.setProjectionMatrix(this.camera.combined)
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shapeRenderer.setColor(highlightColor)
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shapeRenderer.begin(ShapeRenderer.ShapeType.Filled)
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for (interactable in interactables) {
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shapeRenderer.rect(
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interactable.getCollider().x,
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interactable.getCollider().y,
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interactable.getCollider().width,
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interactable.getCollider().height
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)
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}
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shapeRenderer.end()
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Gdx.gl.glDisable(GL20.GL_BLEND)
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}
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private fun getMousePosition(): Vector2 {
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val unprojectedMousePosition =
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viewport.unproject(Vector3(Gdx.input.x.toFloat(), Gdx.input.y.toFloat(), 0f))
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return Vector2(unprojectedMousePosition.x, unprojectedMousePosition.y)
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}
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private fun handleMapBorderCollision() {
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val mapWidth: Int = map.width
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val mapHeight: Int = map.height
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val playerSize: Float = player.getSize()
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val playerX: Float = MathUtils.clamp(this.player.getX(), 0f, mapWidth - playerSize)
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val playerY: Float = MathUtils.clamp(this.player.getY(), 0f, mapHeight - playerSize)
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this.player.setPosition(playerX, playerY)
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}
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private fun handleInput(delta: Float) {
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val horizontalMovement = Vector2()
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if (isKeyPressed(gameState.settings.getKeyCode(ActionCommand.LEFT))) {
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horizontalMovement.sub(Vector2.X)
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}
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if (isKeyPressed(gameState.settings.getKeyCode(ActionCommand.RIGHT))) {
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horizontalMovement.add(Vector2.X)
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}
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this.player.move(horizontalMovement, delta)
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checkCollision()
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if (this.isColliding) {
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horizontalMovement.rotateDeg(180f)
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this.player.move(horizontalMovement, delta)
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}
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val verticalMovement = Vector2()
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if (isKeyPressed(gameState.settings.getKeyCode(ActionCommand.UP))) {
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verticalMovement.add(Vector2.Y)
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}
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if (isKeyPressed(gameState.settings.getKeyCode(ActionCommand.DOWN))) {
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verticalMovement.sub(Vector2.Y)
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}
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this.player.move(verticalMovement, delta)
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checkCollision()
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if (this.isColliding) {
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verticalMovement.rotateDeg(180f)
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this.player.move(verticalMovement, delta)
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}
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val hasMoved = !horizontalMovement.isZero || !verticalMovement.isZero
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if (hasMoved) {
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updateCamera()
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}
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}
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private fun isKeyPressed(keyCodes: List<Int>): Boolean {
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for (key in keyCodes) {
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if (Gdx.input.isKeyPressed(key)) {
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return true
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}
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}
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return false
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}
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private fun spawnPlayer() {
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val playerSpawn: Vector2 = map.getPlayerSpawn()
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this.player.position = playerSpawn
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}
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private fun checkCollision() {
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this.isColliding = map.isCollidingWith(player)
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}
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private fun updateCamera() {
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val mapSize = Vector2(map.width.toFloat(), map.height.toFloat())
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val scale = viewport.worldHeight / viewport.screenHeight
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camera.position.x = MathUtils.clamp(
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player.position.x,
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(viewport.worldWidth / 2f) + (viewport.leftGutterWidth * scale),
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mapSize.x - (viewport.worldWidth / 2f) - (viewport.rightGutterWidth * scale)
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)
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camera.position.y = MathUtils.clamp(
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player.position.y,
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(viewport.worldHeight / 2f) + (viewport.topGutterHeight * scale),
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mapSize.y - (viewport.worldHeight / 2f) - (viewport.bottomGutterHeight * scale)
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)
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camera.update()
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}
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override fun resize(width: Int, height: Int) {
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// Resize your screen here. The parameters represent the new window size.
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uiStage.resize(width, height)
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gameState.dialogStage.resize(width, height)
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viewport.update(width, height)
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viewport.apply()
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camera.update()
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}
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override fun pause() {
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pause = true
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gameState.soundEngine.stop()
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}
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override fun resume() {
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pause = false
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gameState.soundEngine.resume();
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// Invoked when your application is resumed after pause.
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}
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override fun hide() {
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pause()
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}
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override fun dispose() {
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// Destroy screen's assets here.
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batch.dispose()
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shapeRenderer.dispose()
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}
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fun openDoor() {
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val playerDirection: Vector2 = player.getAbsoluteDirection()
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map.interactWith(playerDirection.x, playerDirection.y, player.getCollider())
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}
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fun toWorldCoordinates(x: Float, y: Float): Vector2 {
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val mouseInWorldPosition = viewport.unproject(Vector3(x, y, 0f))
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return Vector2(
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floor(mouseInWorldPosition.x.toDouble() / this.map.getTileWidth()).toFloat(),
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floor(mouseInWorldPosition.y.toDouble() / this.map.getTileHeight()).toFloat()
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)
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}
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}
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