added a speed ball and buttons to add them to the level

balls/basic/ball_basic.tscn

@@ -7,6 +7,8 @@
 radius = 25.0
 
 [node name="Ball" instance=ExtResource("1_ffml1")]
+speed = 4.0
+strength = 4
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="." index="0"]
 shape = SubResource("CircleShape2D_gj21y")

balls/speed/ball_speed.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=4 format=3 uid="uid://ooytugcohlx0"]
+
+[ext_resource type="PackedScene" uid="uid://d2r0ip6xy3a2" path="res://balls/ball.tscn" id="1_fsuj1"]
+[ext_resource type="Texture2D" uid="uid://dsqcbd2cffw6e" path="res://balls/speed/speed.webp" id="2_ttcr2"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_gj21y"]
+radius = 20.0
+
+[node name="Ball" instance=ExtResource("1_fsuj1")]
+speed = 8.0
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="." index="0"]
+shape = SubResource("CircleShape2D_gj21y")
+
+[node name="Sprite2D" type="Sprite2D" parent="." index="1"]
+texture = ExtResource("2_ttcr2")

balls/speed/speed.webp.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dsqcbd2cffw6e"
+path="res://.godot/imported/speed.webp-ff30c0e30f233aee3c861d7147dba221.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://balls/speed/speed.webp"
+dest_files=["res://.godot/imported/speed.webp-ff30c0e30f233aee3c861d7147dba221.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1