mirror of https://github.com/profan/ld-39-jam.git
103 lines
2.3 KiB
GDScript
103 lines
2.3 KiB
GDScript
extends KinematicBody2D
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const km = preload("Kinematic.gd")
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var MissileImpact = load("res://MissileImpact.tscn")
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onready var sprite = get_node("Sprite")
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onready var ps = get_node("Particles2D")
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onready var cs = get_node("CollisionShape2D")
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var missile_max_speed = 384 # pixels per second
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var missile_arrive_radius = 64
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var missile_arrive_speed = 1
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var missile_rot_speed = deg2rad(22.5) # degrees per second
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var missile_dmg = 100
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var cur_kinematic
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var steering
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var s_seek
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var s_arrive
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# is dead?
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var is_dead = false
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# time to die
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var death_time = 1
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# current timer
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var death_timer = 0
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func _ready():
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set_fixed_process(true)
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cur_kinematic = km.Kinematic.new(self, missile_max_speed)
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steering = km.Steering.new()
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s_seek = km.Seek.new(self)
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s_arrive = km.Arrive.new(self, missile_arrive_radius, missile_arrive_speed)
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var player = get_tree().get_root().get_node("Game/Player")
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s_seek.set_target(player)
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s_arrive.set_target(player)
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player.on_enemy_missile_lock(self)
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connect("exit_tree", player, "on_enemy_missile_lock_lost", [self])
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# base death timer on lifetime
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death_time = ps.get_lifetime()
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func set_velocity(vel):
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cur_kinematic.velocity = vel
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func on_impact(e, is_bullet):
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# create bullet impact
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var new_mi = MissileImpact.instance()
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# e.add_child(new_mi)
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get_tree().get_root().add_child(new_mi)
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#new_bi.set_global_pos(get_collision_pos() + velocity/2)
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new_mi.set_scale(Vector2(1.5, 1.5)) # when missile, larger effect
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new_mi.set_global_pos(get_collision_pos())
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if not is_bullet:
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# align along "hit normal, the lazy way"
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new_mi.set_global_rot((-get_collision_normal()).angle())
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else:
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new_mi.set_global_rot(get_global_rot())
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new_mi.rotate(deg2rad(180))
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# damage and free
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e.do_damage(missile_dmg)
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# hide missile, keep particles until dedness
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queue_death()
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func queue_death():
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sprite.hide()
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ps.set_emitting(false)
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cs.queue_free() # kill it
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is_dead = true
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func _fixed_process(delta):
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if is_dead:
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death_timer += delta
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if death_timer >= death_time:
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queue_free()
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return
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s_seek.get_steering(steering)
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s_arrive.get_steering(steering)
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cur_kinematic.update(steering, delta)
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if is_colliding():
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var e = get_collider()
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var e_t = e.type()
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if e_t == "Bullet":
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on_impact(e, true)
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elif e_t != "Missile":
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on_impact(e, false)
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func type():
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return "Missile"
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