Sword Attack and Knockback

enemies/ghost.gd

@@ -1,7 +1,10 @@
 extends Area2D
+@onready var earth_aligner = $EarthAligner
 var speed = 100
 var damage = 1
 var player : CharacterBody2D
+var current_knockback = Vector2.ZERO
+var knockback_weight = 800
 
 func _ready() -> void:
 	player = get_parent().get_node("Player")
@@ -11,5 +14,14 @@ func _physics_process(delta: float) -> void:
 	var dist = (position - player.position).length()
 	self.position += motion * delta * min(1, dist/(motion.length()*delta))
 	
+	self.position += earth_aligner.global_from_local(current_knockback) * delta
+	current_knockback = current_knockback/pow(1.3, 60*delta)
+	
 	if(self.overlaps_body(player)):
 		player.hurt(damage, self.position-player.position)
+		
+func _on_death():
+	self.queue_free()
+
+func _on_damage_taken(_damage : int, dir: Vector2):
+	current_knockback = dir * knockback_weight

enemies/ghost.tscn

@@ -1,8 +1,9 @@
-[gd_scene load_steps=5 format=3 uid="uid://chu67ci7sl488"]
+[gd_scene load_steps=6 format=3 uid="uid://chu67ci7sl488"]
 
-[ext_resource type="Script" uid="uid://12jns4dppxxj" path="res://ghost.gd" id="1_6attn"]
+[ext_resource type="Script" uid="uid://12jns4dppxxj" path="res://enemies/ghost.gd" id="1_6attn"]
+[ext_resource type="PackedScene" uid="uid://mtfsdd4cdf3a" path="res://enemy_hurtbox.tscn" id="2_34o1m"]
 [ext_resource type="Texture2D" uid="uid://cy70quh6k3s1j" path="res://icon.svg" id="2_obmiq"]
-[ext_resource type="PackedScene" uid="uid://chs0u61f45nau" path="res://earth_aligner.tscn" id="3_obmiq"]
+[ext_resource type="PackedScene" uid="uid://chs0u61f45nau" path="res://utils/earth_aligner.tscn" id="3_obmiq"]
 
 [sub_resource type="CircleShape2D" id="CircleShape2D_6attn"]
 
@@ -10,6 +11,13 @@
 scale = Vector2(0.4, 0.4)
 script = ExtResource("1_6attn")
 
+[node name="EnemyHurtbox" parent="." instance=ExtResource("2_34o1m")]
+max_hp = 50
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="EnemyHurtbox"]
+scale = Vector2(6, 6)
+shape = SubResource("CircleShape2D_6attn")
+
 [node name="Sprite2D" type="Sprite2D" parent="."]
 texture = ExtResource("2_obmiq")
 
@@ -18,3 +26,6 @@ scale = Vector2(6, 6)
 shape = SubResource("CircleShape2D_6attn")
 
 [node name="EarthAligner" parent="." instance=ExtResource("3_obmiq")]
+
+[connection signal="damage_taken" from="EnemyHurtbox" to="." method="_on_damage_taken"]
+[connection signal="died" from="EnemyHurtbox" to="." method="_on_death"]

enemy_hurtbox.gd

@@ -0,0 +1,24 @@
+extends Area2D
+
+@export var max_hp : int
+@onready var hp = max_hp
+var hit_invulnerability = 0.15
+var inv_time = 0;
+
+signal damage_taken
+signal died
+
+func _process(delta: float) -> void:
+	inv_time = max(inv_time-delta, 0)
+
+func hurt(damage : int, dir : Vector2 = Vector2.ZERO):
+	if(inv_time<=0):
+		inv_time = hit_invulnerability
+		hp = max(hp-damage, 0)
+		damage_taken.emit(damage, dir)
+		if(hp <= 0):
+			die()
+		
+func die():
+	died.emit()
+	print(get_parent().name + " has died.")

enemy_hurtbox.gd.uid

@@ -0,0 +1 @@
+uid://ct8am2xeyymuj

enemy_hurtbox.tscn

@@ -0,0 +1,7 @@
+[gd_scene load_steps=2 format=3 uid="uid://mtfsdd4cdf3a"]
+
+[ext_resource type="Script" uid="uid://ct8am2xeyymuj" path="res://enemy_hurtbox.gd" id="1_wa58b"]
+
+[node name="EnemyHurtbox" type="Area2D"]
+collision_layer = 2
+script = ExtResource("1_wa58b")

main.tscn

@@ -1,20 +1,20 @@
 [gd_scene load_steps=5 format=3 uid="uid://cxo6bq26huau7"]
 
-[ext_resource type="PackedScene" uid="uid://cmaovvr15b3qk" path="res://player.tscn" id="2_1bvp3"]
+[ext_resource type="PackedScene" uid="uid://cmaovvr15b3qk" path="res://player/player.tscn" id="2_1bvp3"]
-[ext_resource type="PackedScene" uid="uid://chu67ci7sl488" path="res://ghost.tscn" id="3_h2yge"]
+[ext_resource type="PackedScene" uid="uid://chu67ci7sl488" path="res://enemies/ghost.tscn" id="3_h2yge"]
-[ext_resource type="PackedScene" uid="uid://jjoyj1ldafkf" path="res://earth.tscn" id="3_lquwl"]
+[ext_resource type="PackedScene" uid="uid://jjoyj1ldafkf" path="res://world/earth.tscn" id="3_lquwl"]
-[ext_resource type="Script" uid="uid://colvx6wq0e8n7" path="res://building_generator.gd" id="4_1bvp3"]
+[ext_resource type="Script" uid="uid://colvx6wq0e8n7" path="res://world/building_generator.gd" id="4_1bvp3"]
 
 [node name="main" type="Node2D"]
 
 [node name="Earth" parent="." instance=ExtResource("3_lquwl")]
 
+[node name="Ghost" parent="." instance=ExtResource("3_h2yge")]
+position = Vector2(0, -3200)
+
 [node name="Player" parent="." instance=ExtResource("2_1bvp3")]
 position = Vector2(500, -3100)
 scale = Vector2(3, 3)
 
-[node name="Ghost" parent="." instance=ExtResource("3_h2yge")]
-position = Vector2(0, -3200)
-
 [node name="Building Generator" type="Node" parent="."]
 script = ExtResource("4_1bvp3")

player/player.gd

@@ -1,8 +1,9 @@
 extends CharacterBody2D
 # Child Nodes
-var camera : Camera2D;
+@onready var camera : Camera2D = $Camera2D;
-var anim_sprite : AnimatedSprite2D
+@onready var anim_sprite : AnimatedSprite2D = $AnimatedSprite2D;
-var earth_aligner : Node2D
+@onready var earth_aligner : Node2D = $EarthAligner;
+@onready var sword : Area2D = $Sword;
 
 # Gravity
 var earth_center = Vector2.ZERO;
@@ -10,6 +11,7 @@ var max_fall_speed = 700;
 var gravity = 100;
 
 # Movement
+var facing = -1;
 var hspeed = 150;
 var jump_strength = 1100;
 var air_jumps_max = 1;
@@ -20,29 +22,35 @@ var current_hp = 5;
 var max_hp = 5;
 var hit_invulnerability = 0.5
 var inv_time = 0;
+var dead = false;
 
 # Received Knockback
 var reset_to_velocity = Vector2.ZERO
 var knockback_strength = 1500
 var damage_knockup = 500
 
-
+# Attack Handling
-func _ready() -> void:
+var atk_cooldown = 0.6
-	camera = $Camera2D
+var atk_timer = 0
-	anim_sprite = $AnimatedSprite2D
-	earth_aligner = $EarthAligner
 
 func _physics_process(delta: float) -> void:
 	manage_iframes(delta)
+	manage_attack(delta)
 	manage_movement_options()
 	manage_animation()
-	manage_velocity()
+	manage_velocity(delta)
 	move_and_slide()
 
 func manage_iframes(delta: float):
 	if(inv_time > 0):
 		inv_time = max(0, inv_time-delta)
 
+func manage_attack(delta : float):
+	atk_timer = max(0, atk_timer-delta)
+	if(Input.is_action_just_pressed("attack") and atk_timer <= 0):
+		sword.swing()
+		atk_timer = atk_cooldown
+
 func manage_movement_options() -> void:
 	if(is_on_floor()):
 		air_jumps_current = air_jumps_max
@@ -55,7 +63,8 @@ func manage_animation() -> void:
 		walk_dir -= 1
 	
 	if(walk_dir != 0):
-		anim_sprite.scale.x = - abs(anim_sprite.scale.x) * walk_dir
+		facing = walk_dir
+		anim_sprite.scale.x = - abs(anim_sprite.scale.x) * facing
 		if(is_on_floor()):
 			anim_sprite.play("walk")
 		else:
@@ -63,10 +72,10 @@ func manage_animation() -> void:
 	else :
 		anim_sprite.stop()
 
-func manage_velocity() -> void:
+func manage_velocity(delta: float) -> void:
 	up_direction = (position - earth_center).normalized();
-	var old_local_velocity = local_from_global(velocity)
+	var old_local_velocity = earth_aligner.local_from_global(velocity)
-	var local_velocity = Vector2(old_local_velocity.x/1.7, old_local_velocity.y);
+	var local_velocity = Vector2(old_local_velocity.x/pow(1.7,60*delta), old_local_velocity.y);
 	local_velocity += Vector2(0, gravity)
 	
 	if(Input.is_action_pressed("move_right")):
@@ -85,14 +94,7 @@ func manage_velocity() -> void:
 	if(reset_to_velocity != Vector2.ZERO):
 		local_velocity = reset_to_velocity
 	reset_to_velocity = Vector2.ZERO
-	velocity = global_from_local(local_velocity)
+	velocity = earth_aligner.global_from_local(local_velocity)
-
-
-func global_from_local (_velocity: Vector2) -> Vector2:
-	return _velocity.rotated(earth_aligner.angle)
-	
-func local_from_global (_velocity: Vector2) -> Vector2:
-	return _velocity.rotated(-earth_aligner.angle)
 
 func hurt(dmg: int, dir: Vector2 = Vector2.ZERO):
 	if(inv_time <= 0):
@@ -101,7 +103,9 @@ func hurt(dmg: int, dir: Vector2 = Vector2.ZERO):
 			die()
 		
 		inv_time = hit_invulnerability
-		reset_to_velocity = Vector2(-sign(local_from_global(dir).x)*knockback_strength, -damage_knockup)
+		reset_to_velocity = Vector2(-sign(earth_aligner.local_from_global(dir).x)*knockback_strength, -damage_knockup)
 
 func die():
-	print("You Died") # Placeholder
+	if not dead:
+		print("You Died") # Placeholder
+		dead = true

player/player.tscn

@@ -1,8 +1,9 @@
-[gd_scene load_steps=11 format=3 uid="uid://cmaovvr15b3qk"]
+[gd_scene load_steps=12 format=3 uid="uid://cmaovvr15b3qk"]
 
-[ext_resource type="Script" uid="uid://ddidj1uau28ck" path="res://player.gd" id="1_4flbx"]
+[ext_resource type="Script" uid="uid://ddidj1uau28ck" path="res://player/player.gd" id="1_4flbx"]
-[ext_resource type="Texture2D" uid="uid://cyvxm1hf1rc12" path="res://player_walk.png" id="2_onrkg"]
+[ext_resource type="Texture2D" uid="uid://cyvxm1hf1rc12" path="res://player/player_walk.png" id="2_onrkg"]
-[ext_resource type="PackedScene" uid="uid://chs0u61f45nau" path="res://earth_aligner.tscn" id="3_i3pqv"]
+[ext_resource type="PackedScene" uid="uid://chs0u61f45nau" path="res://utils/earth_aligner.tscn" id="3_i3pqv"]
+[ext_resource type="PackedScene" uid="uid://d3e3kuyeh6mr1" path="res://player/sword.tscn" id="4_yw30f"]
 
 [sub_resource type="CapsuleShape2D" id="CapsuleShape2D_onrkg"]
 
@@ -68,3 +69,5 @@ position = Vector2(0, -50)
 ignore_rotation = false
 
 [node name="EarthAligner" parent="." instance=ExtResource("3_i3pqv")]
+
+[node name="Sword" parent="." instance=ExtResource("4_yw30f")]

player/player_walk.png.import

@@ -18,8 +18,6 @@ dest_files=["res://.godot/imported/player_walk.png-59515d82f701e5545419ecd7b3460
 compress/mode=0
 compress/high_quality=false
 compress/lossy_quality=0.7
-compress/uastc_level=0
-compress/rdo_quality_loss=0.0
 compress/hdr_compression=1
 compress/normal_map=0
 compress/channel_pack=0
@@ -27,10 +25,6 @@ mipmaps/generate=false
 mipmaps/limit=-1
 roughness/mode=0
 roughness/src_normal=""
-process/channel_remap/red=0
-process/channel_remap/green=1
-process/channel_remap/blue=2
-process/channel_remap/alpha=3
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/normal_map_invert_y=false

player/sword.gd

@@ -0,0 +1,25 @@
+extends Area2D
+var anim_sprite: AnimatedSprite2D
+var slash_duration = 0.15
+var slash_timer = 0
+var damage = 20
+var facing = -1
+
+func _ready() -> void:
+	anim_sprite = $AnimatedSprite2D
+
+func swing() -> void:
+	facing = -get_parent().facing
+	anim_sprite.visible = true
+	slash_timer = slash_duration
+
+func _physics_process(delta: float) -> void:
+	scale.x = facing
+	if slash_timer > 0:
+		slash_timer = max(0, slash_timer-delta)
+		if(slash_timer == 0):
+			anim_sprite.visible = false
+		for area in get_overlapping_areas():
+			area.hurt(damage, Vector2(-facing, 0))
+
+			

player/sword.gd.uid

@@ -0,0 +1 @@
+uid://cpyc4qqgpyx38

player/sword.tscn

@@ -0,0 +1,66 @@
+[gd_scene load_steps=10 format=3 uid="uid://d3e3kuyeh6mr1"]
+
+[ext_resource type="Texture2D" uid="uid://cyvxm1hf1rc12" path="res://player/player_walk.png" id="1_74bdg"]
+[ext_resource type="Script" uid="uid://cpyc4qqgpyx38" path="res://player/sword.gd" id="1_hv1tj"]
+
+[sub_resource type="CapsuleShape2D" id="CapsuleShape2D_e4ynd"]
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_r76a6"]
+atlas = ExtResource("1_74bdg")
+region = Rect2(0, 0, 240, 240)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_dwvek"]
+atlas = ExtResource("1_74bdg")
+region = Rect2(240, 0, 240, 240)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_rx5id"]
+atlas = ExtResource("1_74bdg")
+region = Rect2(480, 0, 240, 240)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_v4ynp"]
+atlas = ExtResource("1_74bdg")
+region = Rect2(720, 0, 240, 240)
+
+[sub_resource type="AtlasTexture" id="AtlasTexture_83fnj"]
+atlas = ExtResource("1_74bdg")
+region = Rect2(960, 0, 240, 240)
+
+[sub_resource type="SpriteFrames" id="SpriteFrames_fahsa"]
+animations = [{
+"frames": [{
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_r76a6")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_dwvek")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_rx5id")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_v4ynp")
+}, {
+"duration": 1.0,
+"texture": SubResource("AtlasTexture_83fnj")
+}],
+"loop": true,
+"name": &"default",
+"speed": 5.0
+}]
+
+[node name="Sword" type="Area2D"]
+collision_mask = 2
+script = ExtResource("1_hv1tj")
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+position = Vector2(-13, 5)
+rotation = 1.5708
+scale = Vector2(-0.3, -0.9)
+shape = SubResource("CapsuleShape2D_e4ynd")
+
+[node name="AnimatedSprite2D" type="AnimatedSprite2D" parent="."]
+visible = false
+position = Vector2(-13, 5)
+rotation = 1.5708
+scale = Vector2(-0.1, -0.15)
+sprite_frames = SubResource("SpriteFrames_fahsa")

project.godot

@@ -12,7 +12,7 @@ config_version=5
 
 config/name="The Dark Side of Earth"
 run/main_scene="uid://cxo6bq26huau7"
-config/features=PackedStringArray("4.5", "Forward Plus")
+config/features=PackedStringArray("4.4", "Forward Plus")
 config/icon="res://icon.svg"
 
 [display]
@@ -38,3 +38,12 @@ jump={
 "events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":32,"key_label":0,"unicode":32,"location":0,"echo":false,"script":null)
 ]
 }
+attack={
+"deadzone": 0.2,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":67,"key_label":0,"unicode":99,"location":0,"echo":false,"script":null)
+]
+}
+
+[layer_names]
+
+2d_physics/layer_2="EnemyHurtBox"

utils/earth_aligner.gd

@@ -7,6 +7,12 @@ var angle = 0
 func _ready() -> void:
 	parent = get_parent()
 
-func _physics_process(delta: float) -> void:
+func _physics_process(_delta: float) -> void:
 	angle = -(parent.position - center).angle_to(Vector2.UP)
 	parent.rotation = angle;
+
+func global_from_local (_velocity: Vector2) -> Vector2:
+	return _velocity.rotated(angle)
+	
+func local_from_global (_velocity: Vector2) -> Vector2:
+	return _velocity.rotated(-angle)