Demo: Implement combo enemy BT

demo/demo/agents/agent_base.tscn

@@ -3509,7 +3509,8 @@ fixed_fps = 60
 
 [node name="WeaponNinjaStar" type="Sprite2D" parent="Root"]
 visible = false
-position = Vector2(-55, -76)
+position = Vector2(-71.6739, -72.9077)
+rotation = 0.204683
 scale = Vector2(0.999983, 0.999976)
 texture = ExtResource("4_1c5xq")
 

demo/demo/agents/agent_fencer.tscn

@@ -1,24 +0,0 @@
-[gd_scene load_steps=3 format=3 uid="uid://blxmw2w1h2s0s"]
-
-[ext_resource type="PackedScene" uid="uid://ooigbfhfy4wa" path="res://demo/agents/agent_base.tscn" id="1_fkh4o"]
-[ext_resource type="Texture2D" uid="uid://bo0ibp7tvjbba" path="res://demo/assets/agent_fencer.png" id="2_r3phr"]
-
-[node name="Bobby" instance=ExtResource("1_fkh4o")]
-
-[node name="LegL" parent="Root/Rig" index="0"]
-texture = ExtResource("2_r3phr")
-
-[node name="LegR" parent="Root/Rig" index="1"]
-texture = ExtResource("2_r3phr")
-
-[node name="Body" parent="Root/Rig" index="2"]
-texture = ExtResource("2_r3phr")
-
-[node name="Hat" parent="Root/Rig/Body" index="0"]
-texture = ExtResource("2_r3phr")
-
-[node name="HandL" parent="Root/Rig/Body" index="1"]
-texture = ExtResource("2_r3phr")
-
-[node name="HandR" parent="Root/Rig/Body" index="2"]
-texture = ExtResource("2_r3phr")

demo/demo/agents/agent_melee_combo.tscn

@@ -0,0 +1,41 @@
+[gd_scene load_steps=5 format=3 uid="uid://blxmw2w1h2s0s"]
+
+[ext_resource type="PackedScene" uid="uid://ooigbfhfy4wa" path="res://demo/agents/agent_base.tscn" id="1_dny3b"]
+[ext_resource type="Texture2D" uid="uid://bo0ibp7tvjbba" path="res://demo/assets/agent_combo.png" id="2_4rqld"]
+[ext_resource type="BehaviorTree" uid="uid://cpncl1db8j12f" path="res://demo/ai/trees/enemy_melee_combo.tres" id="3_l805q"]
+
+[sub_resource type="BlackboardPlan" id="BlackboardPlan_78rmu"]
+var/speed/name = "speed"
+var/speed/type = 3
+var/speed/value = 400.0
+var/speed/hint = 1
+var/speed/hint_string = "10,1000,10"
+
+[node name="AgentMeleeCombo" instance=ExtResource("1_dny3b")]
+
+[node name="LegL" parent="Root/Rig" index="1"]
+texture = ExtResource("2_4rqld")
+
+[node name="LegR" parent="Root/Rig" index="2"]
+texture = ExtResource("2_4rqld")
+
+[node name="Body" parent="Root/Rig" index="3"]
+texture = ExtResource("2_4rqld")
+
+[node name="Hat" parent="Root/Rig/Body" index="0"]
+texture = ExtResource("2_4rqld")
+
+[node name="HandL" parent="Root/Rig/Body" index="1"]
+texture = ExtResource("2_4rqld")
+
+[node name="HandR" parent="Root/Rig/Body" index="2"]
+texture = ExtResource("2_4rqld")
+
+[node name="WeaponNinjaStar" parent="Root" index="2"]
+position = Vector2(-55, -76)
+rotation = 0.0
+scale = Vector2(0.999983, 0.999976)
+
+[node name="BTPlayer" type="BTPlayer" parent="." index="4"]
+behavior_tree = ExtResource("3_l805q")
+blackboard_plan = SubResource("BlackboardPlan_78rmu")

demo/demo/ai/tasks/get_first_in_group.gd

@@ -18,7 +18,7 @@ extends BTAction
 
 
 func _generate_name() -> String:
-	return "GetFirstNodeInGroup \"%s\" -> %s" % [
+	return "GetFirstNodeInGroup \"%s\"  ➜%s" % [
 		group,
 		LimboUtility.decorate_var(output_var)
 		]

demo/demo/ai/tasks/leap_forward.gd

@@ -0,0 +1,32 @@
+#*
+#* leap_forward.gd
+#* =============================================================================
+#* Copyright 2021-2024 Serhii Snitsaruk
+#*
+#* Use of this source code is governed by an MIT-style
+#* license that can be found in the LICENSE file or at
+#* https://opensource.org/licenses/MIT.
+#* =============================================================================
+#*
+@tool
+extends BTAction
+## LeapForward: Applies force each tick until duration is exceeded.
+## Returns SUCCESS if elapsed time exceeded duration.
+## Returns RUNNING if elapsed time didn't exceed duration.
+
+
+@export var force: float = 1000.0
+@export var duration: float = 0.1
+
+# Display a customized name (requires @tool).
+func _generate_name() -> String:
+	return "LeapForward force: " + str(force)
+
+# Called each time this task is ticked (aka executed).
+func _tick(_delta: float) -> Status:
+	var facing: float = agent.get_facing()
+	agent.velocity = Vector2.RIGHT * facing * force
+	agent.move_and_slide()
+	if elapsed_time > duration:
+		return SUCCESS
+	return RUNNING

demo/demo/ai/tasks/select_flanking_pos.gd

@@ -14,7 +14,7 @@ extends BTAction
 ## Returns FAILURE, if the target is not valid.
 
 ## Blackboard variable that holds current target (should be a Node2D instance).
-@export var target_var: String = "_target"
+@export var target_var: String = "target"
 
 ## Should closest side be selected?
 @export var closest_side: bool = false

demo/demo/ai/trees/enemy_melee_combo.tres

@@ -0,0 +1,147 @@
+[gd_resource type="BehaviorTree" load_steps=37 format=3 uid="uid://cpncl1db8j12f"]
+
+[ext_resource type="Script" path="res://demo/ai/tasks/get_first_in_group.gd" id="1_e6233"]
+[ext_resource type="Script" path="res://demo/ai/tasks/select_flanking_pos.gd" id="2_ifiw3"]
+[ext_resource type="Script" path="res://demo/ai/tasks/arrive_pos.gd" id="3_4bv56"]
+[ext_resource type="Script" path="res://demo/ai/tasks/face_target.gd" id="3_ylc6a"]
+[ext_resource type="Script" path="res://demo/ai/tasks/leap_forward.gd" id="5_1wo58"]
+
+[sub_resource type="BlackboardPlan" id="BlackboardPlan_46tbn"]
+var/speed/name = "speed"
+var/speed/type = 3
+var/speed/value = 400.0
+var/speed/hint = 1
+var/speed/hint_string = "10,1000,10"
+
+[sub_resource type="BBNode" id="BBNode_nrd4b"]
+saved_value = NodePath("AnimationPlayer")
+resource_name = "AnimationPlayer"
+
+[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_qiw21"]
+animation_player = SubResource("BBNode_nrd4b")
+animation_name = &"idle"
+blend = 0.1
+
+[sub_resource type="BTRandomWait" id="BTRandomWait_xlud8"]
+min_duration = 0.7
+max_duration = 1.5
+
+[sub_resource type="BTAction" id="BTAction_ulbrf"]
+script = ExtResource("1_e6233")
+group = &"player"
+output_var = "target"
+
+[sub_resource type="BTSequence" id="BTSequence_yhjh1"]
+custom_name = "Pause before action"
+children = [SubResource("BTPlayAnimation_qiw21"), SubResource("BTRandomWait_xlud8"), SubResource("BTAction_ulbrf")]
+
+[sub_resource type="BTAction" id="BTAction_85keo"]
+script = ExtResource("2_ifiw3")
+target_var = "target"
+closest_side = true
+range_min = 300
+range_max = 400
+position_var = "pos"
+
+[sub_resource type="BBNode" id="BBNode_wpj6d"]
+saved_value = NodePath("AnimationPlayer")
+resource_name = "AnimationPlayer"
+
+[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_olf37"]
+animation_player = SubResource("BBNode_wpj6d")
+animation_name = &"walk"
+blend = 0.1
+
+[sub_resource type="BTAction" id="BTAction_ygjnc"]
+script = ExtResource("3_4bv56")
+target_position_var = "pos"
+speed_var = "speed"
+tolerance = 50.0
+
+[sub_resource type="BTTimeLimit" id="BTTimeLimit_xek5v"]
+children = [SubResource("BTAction_ygjnc")]
+
+[sub_resource type="BTSequence" id="BTSequence_1xfnq"]
+custom_name = "Align with player"
+children = [SubResource("BTAction_85keo"), SubResource("BTPlayAnimation_olf37"), SubResource("BTTimeLimit_xek5v")]
+
+[sub_resource type="BTAction" id="BTAction_kidxn"]
+script = ExtResource("3_ylc6a")
+target_var = "target"
+
+[sub_resource type="BTWait" id="BTWait_tadkc"]
+duration = 0.2
+
+[sub_resource type="BBNode" id="BBNode_s8evu"]
+saved_value = NodePath("AnimationPlayer")
+resource_name = "AnimationPlayer"
+
+[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_ppmxd"]
+await_completion = 2.0
+animation_player = SubResource("BBNode_s8evu")
+animation_name = &"attack_1"
+
+[sub_resource type="BTAction" id="BTAction_u22bc"]
+script = ExtResource("5_1wo58")
+force = 1000.0
+duration = 0.1
+
+[sub_resource type="BTParallel" id="BTParallel_ec2e3"]
+num_successes_required = 2
+children = [SubResource("BTPlayAnimation_ppmxd"), SubResource("BTAction_u22bc")]
+
+[sub_resource type="BTWait" id="BTWait_c0lo0"]
+duration = 0.2
+
+[sub_resource type="BBNode" id="BBNode_3oljv"]
+saved_value = NodePath("AnimationPlayer")
+resource_name = "AnimationPlayer"
+
+[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_q4uis"]
+await_completion = 2.0
+animation_player = SubResource("BBNode_3oljv")
+animation_name = &"attack_2"
+
+[sub_resource type="BTAction" id="BTAction_yuxl3"]
+script = ExtResource("5_1wo58")
+force = 1000.0
+duration = 0.1
+
+[sub_resource type="BTParallel" id="BTParallel_thojy"]
+num_successes_required = 2
+children = [SubResource("BTPlayAnimation_q4uis"), SubResource("BTAction_yuxl3")]
+
+[sub_resource type="BTWait" id="BTWait_y3pmv"]
+duration = 0.2
+
+[sub_resource type="BBNode" id="BBNode_ot40l"]
+saved_value = NodePath("AnimationPlayer")
+resource_name = "AnimationPlayer"
+
+[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_ye5pt"]
+await_completion = 2.0
+animation_player = SubResource("BBNode_ot40l")
+animation_name = &"attack_3"
+
+[sub_resource type="BTAction" id="BTAction_rwp18"]
+script = ExtResource("5_1wo58")
+force = 1000.0
+duration = 0.1
+
+[sub_resource type="BTParallel" id="BTParallel_qmdfb"]
+num_successes_required = 2
+children = [SubResource("BTPlayAnimation_ye5pt"), SubResource("BTAction_rwp18")]
+
+[sub_resource type="BTWait" id="BTWait_nxyko"]
+duration = 0.5
+
+[sub_resource type="BTSequence" id="BTSequence_ww5v2"]
+custom_name = "Combo Melee attack"
+children = [SubResource("BTAction_kidxn"), SubResource("BTWait_tadkc"), SubResource("BTParallel_ec2e3"), SubResource("BTWait_c0lo0"), SubResource("BTParallel_thojy"), SubResource("BTWait_y3pmv"), SubResource("BTParallel_qmdfb"), SubResource("BTWait_nxyko")]
+
+[sub_resource type="BTSequence" id="BTSequence_pxl2k"]
+children = [SubResource("BTSequence_yhjh1"), SubResource("BTSequence_1xfnq"), SubResource("BTSequence_ww5v2")]
+
+[resource]
+blackboard_plan = SubResource("BlackboardPlan_46tbn")
+root_task = SubResource("BTSequence_pxl2k")

demo/demo/ai/trees/enemy_melee_simple.tres

@@ -40,11 +40,11 @@ blend = 0.1
 [sub_resource type="BTAction" id="BTAction_ulbrf"]
 script = ExtResource("1_2jpsu")
 group = &"player"
-output_var = "_target"
+output_var = "target"
 
 [sub_resource type="BTAction" id="BTAction_a4jqi"]
 script = ExtResource("2_h5db5")
-target_var = "_target"
+target_var = "target"
 speed_var = "speed"
 approach_distance = 100.0
 
@@ -58,7 +58,7 @@ children = [SubResource("BTPlayAnimation_olf37"), SubResource("BTAction_ulbrf"),
 
 [sub_resource type="BTAction" id="BTAction_kidxn"]
 script = ExtResource("3_bpmfp")
-target_var = "_target"
+target_var = "target"
 
 [sub_resource type="BTWait" id="BTWait_tadkc"]
 duration = 0.1

demo/demo/assets/agent_combo.png.import

@@ -3,15 +3,15 @@
 importer="texture"
 type="CompressedTexture2D"
 uid="uid://bo0ibp7tvjbba"
-path="res://.godot/imported/agent_fencer.png-289d0f406fd6917ada1d9dd1003e1532.ctex"
+path="res://.godot/imported/agent_combo.png-1aabf55a6f7673e34d40eadba34cb086.ctex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
-source_file="res://demo/assets/agent_fencer.png"
-dest_files=["res://.godot/imported/agent_fencer.png-289d0f406fd6917ada1d9dd1003e1532.ctex"]
+source_file="res://demo/assets/agent_combo.png"
+dest_files=["res://.godot/imported/agent_combo.png-1aabf55a6f7673e34d40eadba34cb086.ctex"]
 
 [params]
 

demo/demo/scenes/demo.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=12 format=3 uid="uid://bsig1usigbbuy"]
+[gd_scene load_steps=13 format=3 uid="uid://bsig1usigbbuy"]
 
 [ext_resource type="Texture2D" uid="uid://b3g14elmg0m36" path="res://demo/assets/env_rocks.png" id="1_145kx"]
 [ext_resource type="PackedScene" uid="uid://dt2jlrqffpyw" path="res://demo/scenes/clouds.tscn" id="1_gsxmp"]
@@ -7,6 +7,7 @@
 [ext_resource type="PackedScene" uid="uid://bpd1wmw2f7bvg" path="res://demo/props/gong.tscn" id="3_nbto3"]
 [ext_resource type="PackedScene" uid="uid://d07ag5dcje13i" path="res://demo/agents/player/player.tscn" id="5_cmgoj"]
 [ext_resource type="PackedScene" uid="uid://ci3x5esepbu5v" path="res://demo/agents/agent_ranged.tscn" id="6_76icr"]
+[ext_resource type="PackedScene" uid="uid://blxmw2w1h2s0s" path="res://demo/agents/agent_melee_combo.tscn" id="7_jlgir"]
 [ext_resource type="PackedScene" uid="uid://2e4ohaqjaawb" path="res://demo/agents/agent_melee_nuanced.tscn" id="8_ovfbp"]
 
 [sub_resource type="Animation" id="Animation_gwtgs"]
@@ -2885,12 +2886,6 @@ position = Vector2(227, 231)
 [node name="AgentMeleeNuanced5" parent="YSort/Agents" instance=ExtResource("8_ovfbp")]
 position = Vector2(592, -163)
 
-[node name="AgentMeleeNuanced6" parent="YSort/Agents" instance=ExtResource("8_ovfbp")]
-position = Vector2(1589, -87)
-
-[node name="AgentMeleeNuanced7" parent="YSort/Agents" instance=ExtResource("8_ovfbp")]
-position = Vector2(-154, 726)
-
 [node name="Player" parent="YSort/Agents" instance=ExtResource("5_cmgoj")]
 position = Vector2(633, 256)
 
@@ -2907,6 +2902,9 @@ drag_bottom_margin = 0.1
 [node name="AgentRanged" parent="YSort/Agents" instance=ExtResource("6_76icr")]
 position = Vector2(2067, 543)
 
+[node name="AgentMeleeCombo" parent="YSort/Agents" instance=ExtResource("7_jlgir")]
+position = Vector2(1778, 22)
+
 [node name="Props" type="Node2D" parent="YSort"]
 y_sort_enabled = true
 metadata/_edit_lock_ = true