diff --git a/.import/Duck.png-09368b9ecb7440ffc80609345a04c943.md5 b/.import/Duck.png-09368b9ecb7440ffc80609345a04c943.md5
new file mode 100644
index 0000000..f68f7c5
--- /dev/null
+++ b/.import/Duck.png-09368b9ecb7440ffc80609345a04c943.md5
@@ -0,0 +1,3 @@
+source_md5="ca2d599ef54a2643f218531e12c042f1"
+dest_md5="b0901b03b2b8bb064742c4c46eb82b06"
+
diff --git a/.import/Duck.png-09368b9ecb7440ffc80609345a04c943.stex b/.import/Duck.png-09368b9ecb7440ffc80609345a04c943.stex
new file mode 100644
index 0000000..139bc1e
Binary files /dev/null and b/.import/Duck.png-09368b9ecb7440ffc80609345a04c943.stex differ
diff --git a/.import/New Piskel.png-4b57200a9b5d4d6f89cce1bdbbdb2eec.md5 b/.import/New Piskel.png-4b57200a9b5d4d6f89cce1bdbbdb2eec.md5
new file mode 100644
index 0000000..5722afc
--- /dev/null
+++ b/.import/New Piskel.png-4b57200a9b5d4d6f89cce1bdbbdb2eec.md5	
@@ -0,0 +1,3 @@
+source_md5="a33962dbd961bfd22b29d62f4bd7d75a"
+dest_md5="f4249c44be2ea010745f0021faed38e2"
+
diff --git a/.import/New Piskel.png-4b57200a9b5d4d6f89cce1bdbbdb2eec.stex b/.import/New Piskel.png-4b57200a9b5d4d6f89cce1bdbbdb2eec.stex
new file mode 100644
index 0000000..3e9ef13
Binary files /dev/null and b/.import/New Piskel.png-4b57200a9b5d4d6f89cce1bdbbdb2eec.stex differ
diff --git a/.import/New Piskel.png-c94dd3d76cd11d1bdd359e599bb14365.md5 b/.import/New Piskel.png-c94dd3d76cd11d1bdd359e599bb14365.md5
new file mode 100644
index 0000000..5722afc
--- /dev/null
+++ b/.import/New Piskel.png-c94dd3d76cd11d1bdd359e599bb14365.md5	
@@ -0,0 +1,3 @@
+source_md5="a33962dbd961bfd22b29d62f4bd7d75a"
+dest_md5="f4249c44be2ea010745f0021faed38e2"
+
diff --git a/.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.md5 b/.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.md5
new file mode 100644
index 0000000..1e7aa05
--- /dev/null
+++ b/.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.md5
@@ -0,0 +1,3 @@
+source_md5="4a950cf8deae6b98bd20401e41475f5a"
+dest_md5="5738966f09649ceafc4f38ccdd982e27"
+
diff --git a/.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.stex b/.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.stex
new file mode 100644
index 0000000..93180a7
Binary files /dev/null and b/.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.stex differ
diff --git a/Duck.gd b/Duck.gd
new file mode 100644
index 0000000..53234e9
--- /dev/null
+++ b/Duck.gd
@@ -0,0 +1,14 @@
+extends Thing
+
+func _init(hp = 10, mass = 2, hardness = 1).(hp, mass, hardness): #call parent class (Thing) constructor with these parameters
+	pass
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass
+
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta):
+#	pass
diff --git a/Interaction.gd b/Interaction.gd
new file mode 100644
index 0000000..9486ca4
--- /dev/null
+++ b/Interaction.gd
@@ -0,0 +1,43 @@
+extends Node
+#var Thing = preload("res://Thing.gd")
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+
+
+func destroy(thing:Node):
+	thing.free();
+
+func combine(thing1:Thing, thing2:Thing):
+	print("combining...")
+	var newThing = Thing.new(
+		(thing1.hp + thing2.hp) / 2,
+		(thing1.mass + thing2.mass) / 2,
+		(thing1.hardness + thing2.hardness) / 2);
+	newThing.transform = thing1.transform;
+	newThing.name = thing1.name + thing2.name;
+	
+	var sprite = Sprite.new();
+	newThing.add_child(sprite);
+	#blending the images:
+	var image1 = thing1.get_child(0).texture.get_data();
+	var image2 = thing2.get_child(0).texture.get_data();
+	var newTexture = ImageTexture.new();
+	var newImage = image1.blit_rect(image2, Rect2(Vector2(0,0),Vector2(32,64)), Vector2(0,0));
+	#var newImage = image1;
+	newTexture.create_from_image(image1);
+	newThing.get_child(0).texture = newTexture;
+	
+	#adding collision shape
+	var shape = RectangleShape2D.new();
+	shape.set_extents(Vector2(32,32));
+	var collShape = CollisionShape2D.new();
+	collShape.set_shape(shape);
+	newThing.add_child(collShape)
+	
+	thing1.get_parent().add_child(newThing);
+	thing1.free();
+	thing2.free();
diff --git a/Stone.gd b/Stone.gd
new file mode 100644
index 0000000..12c7068
--- /dev/null
+++ b/Stone.gd
@@ -0,0 +1,14 @@
+extends Thing
+
+func _init(hp = 100, mass = 100, hardness = 10).(hp, mass, hardness): #call parent class (Thing) constructor with these parameters
+	pass
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass
+
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta):
+#	pass
diff --git a/Thing.gd b/Thing.gd
new file mode 100644
index 0000000..c898955
--- /dev/null
+++ b/Thing.gd
@@ -0,0 +1,17 @@
+extends RigidBody2D
+class_name Thing
+
+var hp;
+var hardness;
+
+func _init(hp, mass, hardness):
+	self.hp = hp;
+	self.mass = mass;
+	self.hardness = hardness; # on a scale from 0 to 10
+	self.gravity_scale = 0;
+	self.linear_damp = mass * 0.1
+	self.angular_damp = mass * 0.1
+
+
+func _ready():
+	print("The " + name + " has the following properties: hp: " + str(hp) + ", mass: " + str(mass) + ", hardness: " + str(hardness));
diff --git a/Visuals/Duck.png b/Visuals/Duck.png
new file mode 100644
index 0000000..9206f87
Binary files /dev/null and b/Visuals/Duck.png differ
diff --git a/Visuals/Duck.png.import b/Visuals/Duck.png.import
new file mode 100644
index 0000000..a9411e5
--- /dev/null
+++ b/Visuals/Duck.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Duck.png-09368b9ecb7440ffc80609345a04c943.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Visuals/Duck.png"
+dest_files=[ "res://.import/Duck.png-09368b9ecb7440ffc80609345a04c943.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0
diff --git a/Visuals/Stone.png b/Visuals/Stone.png
new file mode 100644
index 0000000..9341cde
Binary files /dev/null and b/Visuals/Stone.png differ
diff --git a/Visuals/Stone.png.import b/Visuals/Stone.png.import
new file mode 100644
index 0000000..3219396
--- /dev/null
+++ b/Visuals/Stone.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Visuals/Stone.png"
+dest_files=[ "res://.import/Stone.png-72d924ca1fd7a477c205cb72a1d6337b.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0
diff --git a/controller.gd b/controller.gd
new file mode 100644
index 0000000..9790695
--- /dev/null
+++ b/controller.gd
@@ -0,0 +1,62 @@
+extends Node
+
+var robot : KinematicBody2D
+var camera : Camera2D
+var MAX_SPEED = 2
+var ACCELERATION = 100
+var motion = Vector2.ZERO
+var rotation_dir = 0
+
+func _physics_process(delta):
+	var axis = get_input_axis()
+	if robot != null:
+		robot.rotation += rotation_dir * 1.5 * delta
+		if axis == Vector2.ZERO:
+			apply_friction(ACCELERATION * delta)
+		else:
+			apply_movement(axis * ACCELERATION * delta)
+		robot.move_and_collide(motion)
+	
+func get_input_axis():
+	var axis = Vector2.ZERO
+	rotation_dir = int(Input.is_action_pressed("robo_right")) - int(Input.is_action_pressed("robo_left"))
+	axis.y = int(Input.is_action_pressed("robo_down")) - int(Input.is_action_pressed("robo_up"))
+	return axis.normalized().rotated(robot.rotation)
+
+func apply_friction(amount):
+	if motion.length() > amount:
+		motion -= motion.normalized() * amount
+	else:
+		motion = Vector2.ZERO 
+
+func apply_movement(amount):
+	motion += amount
+	motion = motion.clamped(MAX_SPEED)
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	robot = $"/root/sandbox/robot"
+	camera = $"/root/sandbox/Camera2D"
+	camera.get_parent().remove_child(camera)
+	robot.add_child(camera)
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	pass
+
+func _input(event):
+	if event.is_action_pressed("robo_action"):
+		if robot.myname == "robot1":
+			robot.remove_child(camera)
+			robot = $"/root/sandbox/robot2"
+			robot.add_child(camera)
+		else:
+			robot.remove_child(camera)
+			robot = $"/root/sandbox/robot"
+			robot.add_child(camera)
+	if event.is_action_pressed("robo_combine"):
+		get_node("/root/sandbox/Interaction").combine(
+			get_node("/root/sandbox/Interaction/Stone"),
+			get_node("/root/sandbox/Interaction/Duck"));
diff --git a/controller.tscn b/controller.tscn
new file mode 100644
index 0000000..bfe4ed3
--- /dev/null
+++ b/controller.tscn
@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://controller.gd" type="Script" id=1]
+
+[node name="controller" type="Node"]
+script = ExtResource( 1 )
diff --git a/default_env.tres b/default_env.tres
index 98f26a7..20207a4 100644
--- a/default_env.tres
+++ b/default_env.tres
@@ -1,5 +1,7 @@
 [gd_resource type="Environment" load_steps=2 format=2]
+
 [sub_resource type="ProceduralSky" id=1]
+
 [resource]
 background_mode = 2
 background_sky = SubResource( 1 )
diff --git a/project.godot b/project.godot
index 3e6c616..2f60ab0 100644
--- a/project.godot
+++ b/project.godot
@@ -8,16 +8,59 @@
 
 config_version=4
 
-_global_script_classes=[  ]
+_global_script_classes=[ {
+"base": "RigidBody2D",
+"class": "Thing",
+"language": "GDScript",
+"path": "res://Thing.gd"
+} ]
 _global_script_class_icons={
-
+"Thing": ""
 }
 
 [application]
 
 config/name="Project- Proxy"
+run/main_scene="res://sandbox.tscn"
 config/icon="res://icon.png"
 
+[autoload]
+
+Controller="*res://controller.tscn"
+
+[input]
+
+robo_up={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":87,"unicode":0,"echo":false,"script":null)
+ ]
+}
+robo_down={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":83,"unicode":0,"echo":false,"script":null)
+ ]
+}
+robo_left={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":65,"unicode":0,"echo":false,"script":null)
+ ]
+}
+robo_right={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":68,"unicode":0,"echo":false,"script":null)
+ ]
+}
+robo_action={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":69,"unicode":0,"echo":false,"script":null)
+ ]
+}
+robo_combine={
+"deadzone": 0.5,
+"events": [ Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":0,"alt":false,"shift":false,"control":false,"meta":false,"command":false,"pressed":false,"scancode":70,"unicode":0,"echo":false,"script":null)
+ ]
+}
+
 [rendering]
 
 environment/default_environment="res://default_env.tres"
diff --git a/robot.gd b/robot.gd
new file mode 100644
index 0000000..360b0cc
--- /dev/null
+++ b/robot.gd
@@ -0,0 +1,17 @@
+extends KinematicBody2D
+
+export var myname = ""
+# 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():
+	$Label.text = myname
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+#func _process(delta):
+#	pass
diff --git a/robot.tscn b/robot.tscn
new file mode 100644
index 0000000..1c35dbf
--- /dev/null
+++ b/robot.tscn
@@ -0,0 +1,26 @@
+[gd_scene load_steps=4 format=2]
+
+[ext_resource path="res://icon.png" type="Texture" id=1]
+[ext_resource path="res://robot.gd" type="Script" id=2]
+
+[sub_resource type="CircleShape2D" id=1]
+radius = 30.0
+
+[node name="robot" type="KinematicBody2D"]
+script = ExtResource( 2 )
+
+[node name="Sprite" type="Sprite" parent="."]
+texture = ExtResource( 1 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+shape = SubResource( 1 )
+
+[node name="Label" type="Label" parent="."]
+margin_left = -22.238
+margin_top = 32.0
+margin_right = 23.762
+margin_bottom = 46.0
+text = "ROBOT"
+__meta__ = {
+"_edit_use_anchors_": false
+}
diff --git a/sandbox.tscn b/sandbox.tscn
new file mode 100644
index 0000000..ab70c6c
--- /dev/null
+++ b/sandbox.tscn
@@ -0,0 +1,104 @@
+[gd_scene load_steps=11 format=2]
+
+[ext_resource path="res://robot.tscn" type="PackedScene" id=1]
+[ext_resource path="res://Interaction.gd" type="Script" id=2]
+[ext_resource path="res://Stone.gd" type="Script" id=3]
+[ext_resource path="res://Duck.gd" type="Script" id=4]
+[ext_resource path="res://Visuals/Duck.png" type="Texture" id=5]
+[ext_resource path="res://Visuals/Stone.png" type="Texture" id=6]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 40, 40 )
+
+[sub_resource type="RectangleShape2D" id=2]
+extents = Vector2( 80, 80 )
+
+[sub_resource type="RectangleShape2D" id=4]
+extents = Vector2( 32, 32 )
+
+[sub_resource type="RectangleShape2D" id=3]
+extents = Vector2( 32, 32 )
+
+[node name="sandbox" type="Node2D"]
+
+[node name="robot" parent="." instance=ExtResource( 1 )]
+position = Vector2( 215.775, 360.402 )
+myname = "robot1"
+
+[node name="robot2" parent="." instance=ExtResource( 1 )]
+position = Vector2( 681.091, 382.563 )
+myname = "robot2"
+
+[node name="RigidBody2D" type="RigidBody2D" parent="."]
+mass = 10.2041
+gravity_scale = 0.0
+linear_damp = 10.0
+angular_damp = 10.0
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="RigidBody2D"]
+position = Vector2( 193, 179 )
+shape = SubResource( 1 )
+
+[node name="Polygon2D" type="Polygon2D" parent="RigidBody2D"]
+polygon = PoolVector2Array( 153.106, 140.18, 232.139, 140.18, 232.738, 218.016, 153.705, 217.417 )
+
+[node name="StaticBody2D" type="StaticBody2D" parent="."]
+position = Vector2( 452.544, 267.094 )
+
+[node name="Polygon2D" type="Polygon2D" parent="StaticBody2D"]
+polygon = PoolVector2Array( -86.2895, -80.1853, 76.9996, -77.8526, 75.8333, 76.1057, -79.2914, 74.9394 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="StaticBody2D"]
+shape = SubResource( 2 )
+
+[node name="Camera2D" type="Camera2D" parent="."]
+current = true
+smoothing_enabled = true
+
+[node name="CanvasLayer" type="CanvasLayer" parent="."]
+
+[node name="UI" type="Control" parent="CanvasLayer"]
+margin_right = 40.0
+margin_bottom = 40.0
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Label" type="Label" parent="CanvasLayer/UI"]
+margin_right = 40.0
+margin_bottom = 14.0
+text = "WASD = move
+E = switch robots
+F = combine Stone and Duck"
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Interaction" type="Node" parent="."]
+script = ExtResource( 2 )
+
+[node name="Stone" type="RigidBody2D" parent="Interaction"]
+position = Vector2( 238.668, 469.723 )
+script = ExtResource( 3 )
+__meta__ = {
+"_edit_group_": true
+}
+
+[node name="Sprite" type="Sprite" parent="Interaction/Stone"]
+texture = ExtResource( 6 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Interaction/Stone"]
+shape = SubResource( 4 )
+
+[node name="Duck" type="RigidBody2D" parent="Interaction"]
+position = Vector2( 395.124, 450.939 )
+script = ExtResource( 4 )
+__meta__ = {
+"_edit_group_": true
+}
+
+[node name="Sprite" type="Sprite" parent="Interaction/Duck"]
+texture = ExtResource( 5 )
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="Interaction/Duck"]
+shape = SubResource( 3 )