2D laser demo

2d_laser/Soldier.gd

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+extends KinematicBody2D
+
+var speed = 250
+var velocity = Vector2()
+var can_shoot = true
+export var beam_duration = 1.5
+export var cooldown = 0.5
+var hit = null
+
+func _ready():
+	$Line2D.remove_point(1)
+
+func get_input():
+	velocity = Vector2()
+	if Input.is_action_pressed("forward"):
+		velocity += transform.x * speed
+	if Input.is_action_pressed("backward"):
+		velocity += -transform.x * speed
+	if Input.is_action_pressed("strafe_right"):
+		velocity += transform.y * speed/2
+	if Input.is_action_pressed("strafe_left"):
+		velocity += -transform.y * speed/2
+	if Input.is_action_just_pressed("click") and can_shoot:
+		shoot()
+
+func shoot():
+	can_shoot = false
+	hit = cast_beam()
+	yield(get_tree().create_timer(beam_duration), "timeout")
+	$Line2D.remove_point(1)
+	hit = null
+	yield(get_tree().create_timer(cooldown), "timeout")
+	can_shoot = true
+
+func cast_beam():
+	var space_state = get_world_2d().direct_space_state
+	var result = space_state.intersect_ray($Muzzle.global_position, $Muzzle.global_position + transform.x * 1000, [self])
+	if result:
+		if !hit:
+			$Line2D.add_point(transform.xform_inv(result.position))
+		else:
+			$Line2D.set_point_position(1, transform.xform_inv(result.position))
+	return result
+
+func _physics_process(delta):
+	look_at(get_global_mouse_position())
+	get_input()
+	if position.distance_to(get_global_mouse_position()) > 25:
+		velocity = move_and_slide(velocity)
+	if hit:
+		hit = cast_beam()

2d_laser/Soldier.tscn

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+[gd_scene load_steps=6 format=2]
+
+[ext_resource path="res://Soldier.gd" type="Script" id=1]
+[ext_resource path="res://assets/spritesheet_characters.png" type="Texture" id=2]
+[ext_resource path="res://beam_pulse1.shader" type="Shader" id=3]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 17.3386, 26.1331 )
+
+[sub_resource type="ShaderMaterial" id=2]
+shader = ExtResource( 3 )
+
+[node name="Soldier" type="KinematicBody2D"]
+script = ExtResource( 1 )
+
+[node name="Sprite" type="Sprite" parent="."]
+texture = ExtResource( 2 )
+region_enabled = true
+region_rect = Rect2( 113, 0, 51, 43 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+rotation = 1.5708
+shape = SubResource( 1 )
+
+[node name="Muzzle" type="Position2D" parent="."]
+position = Vector2( 25, 9 )
+
+[node name="Camera2D" type="Camera2D" parent="."]
+current = true
+
+[node name="Line2D" type="Line2D" parent="."]
+material = SubResource( 2 )
+points = PoolVector2Array( 25, 9, 231.473, 9.27283 )
+default_color = Color( 2, 0.17, 0, 1 )
+texture_mode = 101
+end_cap_mode = 2

2d_laser/TileMap.gd

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+extends TileMap
+
+# Declare member variables here. Examples:
+# var a = 2
+# var b = "text"
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta):
+#	pass