Damage numbers and knockback

level/scripts/base_unit.gd

@@ -26,7 +26,7 @@ func _enter_tree():
 ## Take damage from an attacker
 ## Should only be called on the server for authority
 @rpc("any_peer", "reliable")
-func take_damage(amount: float, attacker_id: int = -1):
+func take_damage(amount: float, attacker_id: int = -1, knockback: float = 0.0, attacker_pos: Vector3 = Vector3.ZERO):
 	# Only server can process damage
 	if not multiplayer.is_server():
 		return
@@ -36,10 +36,14 @@ func take_damage(amount: float, attacker_id: int = -1):
 
 	# Apply blocking reduction if applicable (duck typing - check if method exists)
 	var final_damage = amount
+	var final_knockback = knockback
+	var was_blocked = false
 	if has_method("get_block_reduction"):
 		var block_reduction = call("get_block_reduction")
 		if block_reduction > 0.0:
 			final_damage = amount * (1.0 - block_reduction)
+			final_knockback = knockback * (1.0 - block_reduction)  # Reduce knockback too
+			was_blocked = true
 			print("Blocked! Damage reduced from ", amount, " to ", final_damage, " (", block_reduction * 100, "% reduction)")
 
 	var old_health = current_health
@@ -49,6 +53,18 @@ func take_damage(amount: float, attacker_id: int = -1):
 	rpc("sync_health", current_health)
 	health_changed.emit(old_health, current_health)
 
+	# Show damage number on all clients
+	rpc("_show_damage_number", final_damage, was_blocked)
+
+	# Play hurt animation on all clients
+	rpc("_play_hurt_animation")
+
+	# Apply knockback if applicable
+	if final_knockback > 0.0 and attacker_pos != Vector3.ZERO:
+		var knockback_dir = (global_position - attacker_pos).normalized()
+		knockback_dir.y = 0.3  # Slight upward component
+		rpc("_apply_knockback", knockback_dir * final_knockback)
+
 	if current_health <= 0:
 		_die(attacker_id)
 
@@ -123,3 +139,36 @@ func set_respawn_point(point: Vector3):
 ## Get health percentage (0.0 to 1.0)
 func get_health_percent() -> float:
 	return current_health / max_health if max_health > 0 else 0.0
+
+## Show floating damage number
+@rpc("any_peer", "call_local", "reliable")
+func _show_damage_number(damage: float, was_blocked: bool):
+	print("Spawning damage number: ", damage, " blocked: ", was_blocked, " on peer: ", multiplayer.get_unique_id())
+
+	# Create damage number label
+	var damage_label = Label3D.new()
+	var damage_script = load("res://level/scripts/damage_number.gd")
+	damage_label.set_script(damage_script)
+
+	# Position above the character
+	damage_label.position = global_position + Vector3(0, 2.5, 0)
+
+	# Add to scene (not as child of this node, so it doesn't get affected by player movement)
+	get_tree().get_current_scene().add_child(damage_label)
+
+	# Set damage value and color
+	damage_label.call("set_damage", damage, was_blocked)
+
+## Apply knockback force
+@rpc("any_peer", "call_local", "reliable")
+func _apply_knockback(knockback_velocity: Vector3):
+	# Only applies to CharacterBody3D (players)
+	if self is CharacterBody3D:
+		velocity += knockback_velocity
+		print("Applied knockback: ", knockback_velocity)
+
+## Play hurt animation (override in subclasses)
+@rpc("any_peer", "call_local", "reliable")
+func _play_hurt_animation():
+	# Subclasses should implement this
+	pass