######################
### Jessist Script ###
######################
# This script is part of Jessist
# Jessist is licensed under GNU GPLv3
#
# This script manages the player object
# It handles animations, physics and movement
extends KinematicBody2D

class_name Player

# Player information
export (int) var playerJump = 600
export (int) var playerSpeed = 175*1.5
export (int) var gravitySpeed = 600
export (int) var currentLevel = 0
export (int) var collectables = 0
var gravityVector = 0
export var moveVector = Vector2(0,0)
export (int) var noGravity = 0
var playerRunning = false
var handleMovementLeftRight = false
export (bool) var isAlive = true
var killAnimation = -10
export (bool) var eventDeathAllowed = true
export (String, "STANDING", "WALKING", "JUMPING") var playerAction = null
export (String, "LEFT", "RIGHT") var playerFacing = "RIGHT"
export (bool) var activateMovement = true

# Cheats
export var cheats_fly = false
export var cheats_moonjump = false
export var cheats_fastspeed = false
export var cheats_nokill = false

func _ready():
	gameController.logCall("Player","_ready",null)
	gameController.logInfo("Player","_ready","Initializing player object")

func _physics_process(delta):
	gameController.logCall("Player","_physics_process",delta)
	if not checkIsAlive():
		return
	if not gameController.gamePaused:
		if activateMovement:
			moveVector.x = 0
			checkResetGravity()
		animManager()
		if activateMovement:
			cheatManager()
			inputHandler()
			calculateGravity(delta)
			gameController.logVelocity("Player","_physics_process",moveVector)
			moveVector.y += gravityVector
			move_and_slide(moveVector,Vector2(0,-1))
			movementChecker()
	else:
		$PlayerSprite.playing = false

func animManager():
	gameController.logCall("Player","animManager",null)
	if playerAction == "WALKING":
		$PlayerSprite.animation = "Walking"
		$PlayerSprite.playing = true
	#elif playerAction == "JUMPING":
	#	$PlayerSprite.animation = "Jumping"
	#	$PlayerSprite.playing = true
	else:
		$PlayerSprite.animation = "Walking"
		$PlayerSprite.frame = 0
		$PlayerSprite.playing = false
	if playerFacing == "LEFT":
		$PlayerSprite.flip_h = true
		var shader = ShaderMaterial.new()
		shader.shader = load("res://Shaders/offsetshadow.shader")
		shader.set_shader_param("modulate",Color8(0,0,0,102))
		shader.set_shader_param("offset",Vector2(-1,1))
		$PlayerSprite.material = shader
	elif playerFacing == "RIGHT":
		$PlayerSprite.flip_h = false
		var shader = ShaderMaterial.new()
		shader.shader = load("res://Shaders/offsetshadow.shader")
		shader.set_shader_param("modulate",Color8(0,0,0,102))
		shader.set_shader_param("offset",Vector2(1,1))
		$PlayerSprite.material = shader

func cheatManager():
	gameController.logCall("Player","cheatManager",null)
	if not gameController.allowCheats:
		return
	if cheats_nokill:
		eventDeathAllowed = false
	else:
		eventDeathAllowed = true
	if Input.is_action_just_pressed("cheats_fly"):
		if cheats_fly:
			cheats_fly = false
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_fly is off")
		else:
			cheats_fly = true
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_fly is on")
	if Input.is_action_just_pressed("cheats_moonjump"):
		if cheats_moonjump:
			cheats_moonjump = false
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_moonjump is off")
		else:
			cheats_moonjump = true
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_moonjump is on")
	if Input.is_action_just_pressed("cheats_fastspeed"):
		if cheats_fastspeed:
			cheats_fastspeed = false
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_fastspeed is off")
		else:
			cheats_fastspeed = true
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_fastspeed is on")
	if Input.is_action_just_pressed("cheats_nokill"):
		if cheats_nokill:
			cheats_nokill = false
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_nokill is off")
		else:
			cheats_nokill = true
			gameController.logInfo("Player","cheatManager","CHEATS: cheats_nokill is on")

func inputHandler():
	gameController.logCall("Player","inputHandler",null)
	if not Input.is_action_pressed("ui_left") and not Input.is_action_pressed("ui_right") or Input.is_action_pressed("ui_left") and Input.is_action_pressed("ui_right"):
		playerAction = "STANDING"
		handleMovementLeftRight = true
	else:
		handleMovementLeftRight = false
		
	if Input.is_action_pressed("ui_left"):
		gameController.logVerbose("Player","inputHandler","Left pressed")
		if not handleMovementLeftRight:
			playerFacing = "LEFT"
			playerAction = "WALKING"
			if cheats_fastspeed:
				moveVector.x = moveVector.x-playerSpeed*5
			elif playerRunning:
				moveVector.x = moveVector.x-playerSpeed*1.5
			else:
				moveVector.x = moveVector.x-playerSpeed
	if Input.is_action_pressed("ui_right"):
		gameController.logVerbose("Player","inputHandler","Right pressed")
		if not handleMovementLeftRight:
			playerFacing = "RIGHT"
			playerAction = "WALKING"
			if cheats_fastspeed:
				moveVector.x = moveVector.x+playerSpeed*5
			elif playerRunning:
				moveVector.x = moveVector.x+playerSpeed*1.5
			else:
				moveVector.x = moveVector.x+playerSpeed
	if Input.is_action_pressed("ui_up"):
		gameController.logVerbose("Player","inputHandler","Up pressed")
		if cheats_moonjump:
			playerAction = "JUMPING"
			moveVector.y = -playerJump
			noGravity = 1
		else:
			if is_on_floor():
				playerAction = "JUMPING"
				moveVector.y = -playerJump
				noGravity = 1
	if Input.is_action_pressed("run"):
		gameController.logVerbose("Player","inputHandler","Run pressed")
		playerRunning = true
	else:
		playerRunning = false

func checkResetGravity():
	gameController.logCall("Player","checkResetGravity",null)
	if is_on_ceiling() or is_on_floor():
		gameController.logVelocity("Player","checkResetGravity","Player is on ceiling or floor, resetting y movement and gravity")
		moveVector.y = 0
		noGravity = 0
		gravityVector = 0

func calculateGravity(delta):
	gameController.logCall("Player","calculateGravity",delta)
	if cheats_fly:
		gravityVector = 0
		noGravity = 0
	else:
		if not noGravity == 0:
			gameController.logVerbose("Player","calculateGravity","noGravity is at " + String(noGravity))
			noGravity -= 1
			gravityVector = 0
		else:
			gravityVector += gravitySpeed * delta
			if gravityVector > 1600:
				gravityVector = 1600
				gameController.logVelocity("Player","calculateGravity","gravityVector above 1600, throttling")

func movementChecker():
	gameController.logCall("Player","movementChecker",null)
	if position.x < 0+14:
		position.x = 0+14
	if position.y < 0+33:
		position.y = 0+33
	#if position.x > 1920-14:
	#	position.x = 1920-14
	if position.y > 1080-33:
		position.y = 1080-33

func event(event):
	gameController.logCall("Player","event",event)
	if event == "death":
		if eventDeathAllowed:
			isAlive = false
			checkIsAlive()
	else:
		gameController.logWarn("Player","event","Invalid event specified. Requested event: " + event)

func checkIsAlive():
	gameController.logCall("Player","isAlive",null)
	if not isAlive:
		if killAnimation == 0:
			get_parent().get_node("Camera/GameOver").visible = true
		elif killAnimation == -10:
			gameController.gamePaused = true
			$PlayerSprite.playing = false
			$PlayerSprite.frame = 0
			$PlayerSprite.animation = "Death"
			gameController.gamePaused = true
			killAnimation = 0
		else:
			killAnimation -= 1
		return false
	else:
		return true

func enemyHitZoneEntered(body):
	gameController.logCall("Player","enemyHitZoneEntered",body)
	if body.name == "EnemySpricky":
		eventDeathAllowed = false
		noGravity = 1
		gravityVector = 0
		moveVector.y = -playerJump