khanat-client/scenes/characters/character.gd

extends KinematicBody

signal equip( p_slot, p_item )
signal unequip( p_slot )

var character = null

var rotation_speed_factor = 0.01
var move_speed = 2.5
var run_speed = 5.0
var max_speed = 12.0

export var gravity = -9.0

var velocity: = Vector3.ZERO
var is_running = false
var can_turn = false

var ground_contacts = 0

var is_jump_started = false
var is_jumping = false
var jump_strength = 250.0
var is_falling = false
var is_on_ground = true

var is_readying_weapon = false
var is_weapon_ready = false
var can_attack = true

var is_dying = false
var is_dead = false

var direction = Vector3.ZERO
var orientation = 0.0

enum PLAYER_RELATION {
    neutre,
    friend,
    ennemy    
}
export( PLAYER_RELATION ) var player_relation = PLAYER_RELATION.neutre

export( String ) var creature_filename = null setget set_creature_filename
func set_creature_filename( p_filename ):
    creature_filename = p_filename
    self.load_from_name( p_filename )


func _process( delta ):

    # Calculate a move direction vector relative to the camera
    # The basis stores the (right, up, -forwards) vectors of our camera.
    var forwards: Vector3 = $look_at.global_transform.basis.z * direction.z
    var right: Vector3 = $look_at.global_transform.basis.x * direction.x
    if forwards:
        right = Vector3.ZERO
    var move_direction: = forwards + right
    if move_direction.length() > 1.0:
        move_direction = move_direction.normalized()
    move_direction.y = 0
    
    # Rotation.
    if (self.has_node( "creature" ) and $creature.can_turn()) or self.is_readying_weapon or self.is_weapon_ready:
        self.rotate_y( rotation_speed_factor * orientation )

    # Movement.
    velocity = self.calculate_velocity(velocity, move_direction, delta)
    if not self.is_readying_weapon and not self.is_weapon_ready:
        if not self.is_jumping and not self.is_jump_started and not self.is_falling:
            velocity = self.move_and_slide_with_snap(velocity, Vector3.DOWN, Vector3.UP, true)
        else:
            velocity = self.move_and_slide(velocity, Vector3.UP, true)
    # Animation.
    if self.has_node( "creature" ):
        if self.is_dead:
            $creature.play( "dead_loop" )
        elif self.is_dying:    
            $creature.play( "dying", 2.0 )
        elif self.is_readying_weapon:
            $creature.play( "1h_pistol_ready_start" )
        elif self.is_weapon_ready:
            $creature.play( "1h_pistol_ready_loop" )
        elif direction and not self.is_jump_started and not self.is_jumping and not self.is_falling:
            if direction.z < 0.0:
                if self.is_running:
                    $creature.play( "run" , 2.0 )
                else:
                    $creature.play( "walk" )
            elif direction.z > 0.0:
                if self.is_running:
                    $creature.play_backwards( "run", 2.0 )
                else:
                    $creature.play_backwards( "walk" )
            elif direction.x > 0.0:
                $creature.play( "strafe_right" )
            elif direction.x < 0.0:
                $creature.play( "strafe_left" )
        elif self.is_jump_started and not self.is_jumping:
            $creature.play( "jump_start" )
        elif self.is_jumping or self.is_falling:
            if not self.is_on_ground:
                $creature.play( "jump_loop" )
            else:
                $creature.play( "jump_end", 2 )
        elif not self.orientation == 0.0:
            if self.orientation < 0.0:
                $creature.play( "turn_right", 2.0 )
            elif self.orientation > 0.0:
                $creature.play( "turn_left", 2.0 )
        else:
            $creature.play( "idle" )
        
      
func calculate_velocity(
        velocity_current: Vector3,
        move_direction: Vector3,
        delta: float
    ) -> Vector3:
        
#        var velocity_new := move_direction
        var velocity_new = Vector3.ZERO
        if not self.is_jump_started:
            velocity_new = move_direction
        
        if self.is_running:
            velocity_new *= run_speed
        else:
            velocity_new *= move_speed
        if velocity_new.length() > max_speed:
            velocity_new = velocity_new.normalized() * max_speed
        velocity_new.y = velocity_current.y + gravity * delta
        if self.is_jumping:
            velocity_new.y += self.jump_strength * delta
            self.is_jumping = false
            self.is_falling = true
        if self.is_falling:
            velocity_new.x *= 2.0
            velocity_new.z *= 2.0
            
            
        return velocity_new
        
func load_from_name( p_name, p_emplacement = null ):
    var creature = Datas.Creature.new()
    creature.set_data( "name", p_name )
    creature.load( null, p_emplacement )
    if creature.get_data( "race" ) == Globals.RACE.human:
        if creature.get_data( "sex" ) == Globals.SEX.female:
            self.change_creature( "res://scenes/creatures/human/human_female.tscn" )
        elif creature.get_data( "sex" ) == Globals.SEX.male:
            self.change_creature( "res://scenes/creatures/human/human_male.tscn" )
    if $creature:
        $creature.load_from_name( p_name, p_emplacement )
        
func change_creature( new_model_path ):
    if $creature:
        var old_model = $creature
        self.remove_child( old_model )
        old_model.queue_free()
    var new_model = load( new_model_path )
    if new_model:
        new_model = new_model.instance()
        new_model.name = "creature"
        self.add_child( new_model )
        new_model.connect( "animation_finished", self, "_on_creature_animation_finished" )
        new_model.duplicate_meshes()
func set_blend_shape( p_blend_shape_name, p_value ):
    $creature.set_blend_shape( p_blend_shape_name, p_value )
     

func _on_ground_area_body_entered(body):
    if not body == self:
        self.ground_contacts += 1
    if self.ground_contacts > 0:
#        self.is_falling = false
        self.is_on_ground = true


func _on_ground_area_body_exited(body):
    if not body == self:
        self.ground_contacts -= 1
    if self.ground_contacts <= 0:
        self.is_falling = true
        self.is_on_ground = false


func _on_creature_animation_finished(anim_name):
    if anim_name == "jump_start":
        self.is_jump_started = false
        self.is_jumping = true
    elif anim_name == "jump_end":
        self.is_falling = false
    elif anim_name == "turn_right":
        self.can_turn = false
    elif anim_name == "turn_left":
        self.can_turn = false
    elif anim_name == "1h_pistol_ready_start":
        self.is_readying_weapon = false
        self.is_weapon_ready = true
    elif anim_name == "dying":
        self.is_dying = false
        self.is_dead = true

func set_focus( p_focus = true ):
    if p_focus:
        $focus.show()
        if self.player_relation == PLAYER_RELATION.neutre:
            $focus.get_surface_material( 0 ).albedo_color = Color.white
        elif self.player_relation == PLAYER_RELATION.friend:
            $focus.get_surface_material( 0 ).albedo_color = Color.green
        elif self.player_relation == PLAYER_RELATION.ennemy:
            $focus.get_surface_material( 0 ).albedo_color = Color.red
    else:
        $focus.hide()

func get_weapons():
    var weapons = []
    if Datas.Equipment.SLOT.weapon_hands in $creature.slots:
        if $creature.slots[ Datas.Equipment.SLOT.weapon_hands ].item:
            weapons.push_back( $creature.slots[ Datas.Equipment.SLOT.weapon_hands ].item )

    if not weapons.size() > 0:
        if Datas.Equipment.SLOT.weapon_hand_right in $creature.slots:
            if $creature.slots[ Datas.Equipment.SLOT.weapon_hand_right ].item:
                weapons.push_back( $creature.slots[ Datas.Equipment.SLOT.weapon_hand_right ].item )
        if Datas.Equipment.SLOT.weapon_hand_left in $creature.slots:
            if $creature.slots[ Datas.Equipment.SLOT.weapon_hand_left ].item:
                weapons.push_back( $creature.slots[ Datas.Equipment.SLOT.weapon_hand_left ].item )
    return weapons
    
func get_main_weapon_node():
    var weapon = null
    if Datas.Equipment.SLOT.weapon_hands in $creature.slots:
        if $creature.slots[ Datas.Equipment.SLOT.weapon_hands ].item:
            if $creature/body_parts/body/skeleton/attachment_hand_R/handle.get_children().size() > 0:
                weapon = $creature/body_parts/body/skeleton/attachment_hand_R/handle.get_children()[0]
    if not weapon and Datas.Equipment.SLOT.weapon_hand_right in $creature.slots:
        if $creature.slots[ Datas.Equipment.SLOT.weapon_hand_right ].item:
            if $creature/body_parts/body/skeleton/attachment_hand_R/handle.get_children().size() > 0:
                weapon = $creature/body_parts/body/skeleton/attachment_hand_R/handle.get_children()[0] 
    if not weapon and Datas.Equipment.SLOT.weapon_hand_left in $creature.slots:
        if $creature.slots[ Datas.Equipment.SLOT.weapon_hand_left ].item:
            if $creature/body_parts/body/skeleton/attachment_hand_L/handle.get_children().size() > 0: 
                weapon = $creature/body_parts/body/skeleton/attachment_hand_R/handle.get_children()[0]
    return weapon
    
func attack():
    if self.can_attack:
        var weapon = null
        var attachment = null
        weapon = $creature.slots[ Datas.Equipment.SLOT.weapon_hand_right ].item
        attachment = $creature.slots[ Datas.Equipment.SLOT.weapon_hand_right ].attachment
        if not weapon:
            weapon = $creature.slots[ Datas.Equipment.SLOT.weapon_hand_left ].item
            attachment = $creature.slots[ Datas.Equipment.SLOT.weapon_hand_left ].attachment
        if not weapon:
            weapon = $creature.slots[ Datas.Equipment.SLOT.weapon_hands ].item
            attachment = $creature.slots[ Datas.Equipment.SLOT.weapon_hands ].attachment
            
        if weapon:
            print( "pan " + str(weapon.get_data( "damage" )) )

            var weapon_node = $creature/body_parts/body/skeleton.get_node( attachment )
            if weapon_node:
                weapon_node = weapon_node.get_node( "handle" ).get_children()[0]
#            if weapon_node is preload( "res://scenes/items/equipments/weapons/firearm.gd" ):
#                weapon_node.fire( self, [self] )
#
            self.can_attack = false
            $attack_delay.start()
        
func hit( p_damage, p_from = null ):
    $creature.creature.set_data( "current_life", $creature.creature.get_data( "current_life" )-p_damage )
    $head_infos_viewport/head_infos/bars/life.max_value = $creature.creature.get_max_life()
    $head_infos_viewport/head_infos/bars/life.value = $creature.creature.get_data( "current_life", 0 )
        
func die():
    self.is_dying = true
        
func _on_creature_equip(p_slot, p_item):
    var weapons = self.get_weapons()
    if weapons.size() > 0:
        var max_delay = null
        for weapon in weapons:
            if not max_delay:
                max_delay = weapon.get_data( "attack_delay" )
            else:
                max_delay = max( max_delay, weapon.get_data( "attack_delay" ) )
        $attack_delay.wait_time = max_delay
    emit_signal( "equip", p_slot, p_item )

func _on_creature_unequip(p_slot):
    emit_signal( "unequip", p_slot )


func _on_attack_delay_timeout():
    self.can_attack = true


func _on_creature_is_dead():
    self.die()