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Demo: Add AI for ranged enemy

This commit is contained in:
Serhii Snitsaruk 2024-02-01 12:36:05 +01:00
parent c8ecaf6c8c
commit d0ff58052d
6 changed files with 176 additions and 22 deletions
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22
demo/demo/agents/agent_ranged.tscn
View File

@ -1,17 +1,25 @@
[gd_scene load_steps=3 format=3 uid="uid://ci3x5esepbu5v"]
[gd_scene load_steps=5 format=3 uid="uid://ci3x5esepbu5v"]
[ext_resource type="PackedScene" uid="uid://ooigbfhfy4wa" path="res://demo/agents/agent_base.tscn" id="1_oa4xm"]
[ext_resource type="Texture2D" uid="uid://cjts4ennjtepg" path="res://demo/assets/agent_ranged.png" id="2_37lvn"]
[ext_resource type="BehaviorTree" uid="uid://cqluon1y1hnn5" path="res://demo/ai/trees/enemy_ranged.tres" id="3_f7r5w"]
[node name="Bobby" instance=ExtResource("1_oa4xm")]
[sub_resource type="BlackboardPlan" id="BlackboardPlan_2kwy7"]
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="LegL" parent="Root/Rig" index="0"]
[node name="AgentRanged" instance=ExtResource("1_oa4xm")]
[node name="LegL" parent="Root/Rig" index="1"]
texture = ExtResource("2_37lvn")
[node name="LegR" parent="Root/Rig" index="1"]
[node name="LegR" parent="Root/Rig" index="2"]
texture = ExtResource("2_37lvn")
[node name="Body" parent="Root/Rig" index="2"]
[node name="Body" parent="Root/Rig" index="3"]
texture = ExtResource("2_37lvn")
[node name="Hat" parent="Root/Rig/Body" index="0"]
@ -22,3 +30,7 @@ texture = ExtResource("2_37lvn")
[node name="HandR" parent="Root/Rig/Body" index="2"]
texture = ExtResource("2_37lvn")
[node name="BTPlayer" type="BTPlayer" parent="." index="4"]
behavior_tree = ExtResource("3_f7r5w")
blackboard_plan = SubResource("BlackboardPlan_2kwy7")

30
demo/demo/ai/tasks/get_flank_pos.gd → demo/demo/ai/tasks/select_flanking_pos.gd
View File

@ -1,5 +1,5 @@
#*
#* GetFlankPos.gd
#* select_flanking_pos.gd
#* =============================================================================
#* Copyright 2021-2024 Serhii Snitsaruk
#*
@ -10,25 +10,43 @@
#*
@tool
extends BTAction
## GetFlankPos
## SelectFlankingPos on the side of a target, and return SUCCESS.
## 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"
## Should closest side be selected?
@export var closest_side: bool = false
## Minimum range relative to the target.
@export var range_min: int = 300
## Maximum range relative to the target.
@export var range_max: int = 400
## Blackboard variable that will be used to store selected position.
@export var position_var: String = "flank_pos"
@export var distance: float = 300.0
# Display a customized name (requires @tool).
func _generate_name() -> String:
return "GetFlankPos %s -> %s" % [
return "SelectFlankingPos target: %s range: [%s, %s] closest: %s ➜ %s" % [
LimboUtility.decorate_var(target_var),
range_min,
range_max,
closest_side,
LimboUtility.decorate_var(position_var)]
# Called each time this task is ticked (aka executed).
func _tick(_delta: float) -> Status:
var target: CharacterBody2D = blackboard.get_var(target_var)
var target := blackboard.get_var(target_var) as Node2D
if not is_instance_valid(target):
return FAILURE
var dir: float = signf(target.global_position.x - agent.global_position.x)
if closest_side:
dir *= -1.0
var flank_pos: Vector2 = target.global_position
flank_pos.x += dir * distance
flank_pos.x += dir * randf_range(range_min, range_max)
blackboard.set_var(position_var, flank_pos)
return SUCCESS

20
demo/demo/ai/trees/enemy_melee_nuanced.tres
View File

@ -1,8 +1,8 @@
[gd_resource type="BehaviorTree" load_steps=40 format=3 uid="uid://c2u6sljqkim0n"]
[ext_resource type="Script" path="res://demo/ai/tasks/get_first_in_group.gd" id="1_uvue5"]
[ext_resource type="Script" path="res://demo/ai/tasks/get_flank_pos.gd" id="2_0llce"]
[ext_resource type="Script" path="res://demo/ai/tasks/pursue.gd" id="2_aanv5"]
[ext_resource type="Script" path="res://demo/ai/tasks/select_flanking_pos.gd" id="2_fl3fr"]
[ext_resource type="Script" path="res://demo/ai/tasks/face_target.gd" id="3_r5itf"]
[ext_resource type="Script" path="res://demo/ai/tasks/arrive_pos.gd" id="3_x6gkn"]
@ -40,12 +40,6 @@ output_var = "_target"
custom_name = "Pause before action"
children = [SubResource("BTPlayAnimation_qiw21"), SubResource("BTRandomWait_xlud8"), SubResource("BTAction_c4cxo")]
[sub_resource type="BTAction" id="BTAction_qr6nr"]
script = ExtResource("2_0llce")
target_var = "_target"
position_var = "_flank_pos"
distance = 450.0
[sub_resource type="BBNode" id="BBNode_kc64r"]
saved_value = NodePath("AnimationPlayer")
resource_name = "AnimationPlayer"
@ -56,6 +50,14 @@ animation_name = &"walk"
blend = 0.1
speed = 1.5
[sub_resource type="BTAction" id="BTAction_6e48s"]
script = ExtResource("2_fl3fr")
target_var = "_target"
closest_side = false
range_min = 400.0
range_max = 600.0
position_var = "_flank_pos"
[sub_resource type="BTAction" id="BTAction_66hsk"]
script = ExtResource("3_x6gkn")
target_position_var = "_flank_pos"
@ -71,11 +73,11 @@ target_var = "_target"
[sub_resource type="BTSequence" id="BTSequence_lhg7f"]
custom_name = "Flank player"
children = [SubResource("BTAction_qr6nr"), SubResource("BTPlayAnimation_panch"), SubResource("BTTimeLimit_24ath"), SubResource("BTAction_enw2m")]
children = [SubResource("BTPlayAnimation_panch"), SubResource("BTAction_6e48s"), SubResource("BTTimeLimit_24ath"), SubResource("BTAction_enw2m")]
metadata/_weight_ = 1.0
[sub_resource type="BTCooldown" id="BTCooldown_skw41"]
duration = 5.0
duration = 6.0
children = [SubResource("BTSequence_lhg7f")]
metadata/_weight_ = 2.0

1
demo/demo/ai/trees/enemy_melee_simple.tres
View File

@ -77,7 +77,6 @@ custom_name = "Melee attack"
children = [SubResource("BTAction_kidxn"), SubResource("BTWait_tadkc"), SubResource("BTPlayAnimation_ppmxd")]
[sub_resource type="BTSequence" id="BTSequence_pxl2k"]
custom_name = "Main"
children = [SubResource("BTSequence_yhjh1"), SubResource("BTSequence_1xfnq"), SubResource("BTSequence_ww5v2")]
[resource]

119
demo/demo/ai/trees/enemy_ranged.tres Normal file
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@ -0,0 +1,119 @@
[gd_resource type="BehaviorTree" load_steps=29 format=3 uid="uid://cqluon1y1hnn5"]
[ext_resource type="Script" path="res://demo/ai/tasks/get_first_in_group.gd" id="1_3j1v8"]
[ext_resource type="Script" path="res://demo/ai/tasks/select_flanking_pos.gd" id="2_vbh52"]
[ext_resource type="Script" path="res://demo/ai/tasks/arrive_pos.gd" id="3_20ffh"]
[ext_resource type="Script" path="res://demo/ai/tasks/face_target.gd" id="4_x8yor"]
[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 = 1.2
max_duration = 2.5
[sub_resource type="BTAction" id="BTAction_c4cxo"]
script = ExtResource("1_3j1v8")
group = &"player"
output_var = "_target"
[sub_resource type="BTSequence" id="BTSequence_yhjh1"]
custom_name = "Take a break"
children = [SubResource("BTPlayAnimation_qiw21"), SubResource("BTRandomWait_xlud8"), SubResource("BTAction_c4cxo")]
[sub_resource type="BTAction" id="BTAction_kuuw2"]
script = ExtResource("2_vbh52")
target_var = "_target"
closest_side = true
range_min = 400.0
range_max = 1000.0
position_var = "_shoot_pos"
[sub_resource type="BBNode" id="BBNode_kc64r"]
saved_value = NodePath("AnimationPlayer")
resource_name = "AnimationPlayer"
[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_panch"]
animation_player = SubResource("BBNode_kc64r")
animation_name = &"walk"
blend = 0.1
[sub_resource type="BTAction" id="BTAction_66hsk"]
script = ExtResource("3_20ffh")
target_position_var = "_shoot_pos"
speed_var = "speed"
tolerance = 50.0
[sub_resource type="BTTimeLimit" id="BTTimeLimit_24ath"]
children = [SubResource("BTAction_66hsk")]
[sub_resource type="BTAction" id="BTAction_enw2m"]
script = ExtResource("4_x8yor")
target_var = "_target"
[sub_resource type="BTSequence" id="BTSequence_lhg7f"]
custom_name = "Reposition"
children = [SubResource("BTAction_kuuw2"), SubResource("BTPlayAnimation_panch"), SubResource("BTTimeLimit_24ath"), SubResource("BTAction_enw2m")]
metadata/_weight_ = 1.0
[sub_resource type="BBNode" id="BBNode_s6vt4"]
saved_value = NodePath("AnimationPlayer")
resource_name = "AnimationPlayer"
[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_qa8jy"]
animation_player = SubResource("BBNode_s6vt4")
animation_name = &"throw_prepare"
blend = 0.1
[sub_resource type="BTWait" id="BTWait_gbcyb"]
[sub_resource type="BBNode" id="BBNode_qkfqt"]
saved_value = NodePath("AnimationPlayer")
resource_name = "AnimationPlayer"
[sub_resource type="BTPlayAnimation" id="BTPlayAnimation_0ktds"]
await_completion = 1.0
animation_player = SubResource("BBNode_qkfqt")
animation_name = &"throw"
blend = 0.05
[sub_resource type="BBNode" id="BBNode_1yxc5"]
saved_value = NodePath(".")
resource_name = "."
[sub_resource type="BTCallMethod" id="BTCallMethod_yx4fk"]
node = SubResource("BBNode_1yxc5")
method = &"throw_ninja_star"
[sub_resource type="BTWait" id="BTWait_d2ib4"]
duration = 0.2
[sub_resource type="BTSequence" id="BTSequence_rgbq3"]
custom_name = "Throw ninja star"
children = [SubResource("BTPlayAnimation_qa8jy"), SubResource("BTWait_gbcyb"), SubResource("BTPlayAnimation_0ktds"), SubResource("BTCallMethod_yx4fk"), SubResource("BTWait_d2ib4")]
metadata/_weight_ = 1.0
[sub_resource type="BTRepeat" id="BTRepeat_g08ia"]
times = 3
children = [SubResource("BTSequence_rgbq3")]
[sub_resource type="BTSequence" id="BTSequence_pxl2k"]
custom_name = "Main"
children = [SubResource("BTSequence_yhjh1"), SubResource("BTSequence_lhg7f"), SubResource("BTRepeat_g08ia")]
[resource]
blackboard_plan = SubResource("BlackboardPlan_46tbn")
root_task = SubResource("BTSequence_pxl2k")

6
demo/demo/scenes/demo.tscn
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@ -1,4 +1,4 @@
[gd_scene load_steps=11 format=3 uid="uid://bsig1usigbbuy"]
[gd_scene load_steps=12 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"]
@ -6,6 +6,7 @@
[ext_resource type="Texture2D" uid="uid://4kw2ks8doc0w" path="res://demo/assets/env_plants.png" id="2_kesm7"]
[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://2e4ohaqjaawb" path="res://demo/agents/agent_melee_nuanced.tscn" id="8_ovfbp"]
[sub_resource type="Animation" id="Animation_gwtgs"]
@ -2888,6 +2889,9 @@ drag_bottom_margin = 0.1
[node name="AgentMeleeNuanced" parent="YSort/Agents" instance=ExtResource("8_ovfbp")]
position = Vector2(-180, 552)
[node name="AgentRanged" parent="YSort/Agents" instance=ExtResource("6_76icr")]
position = Vector2(2067, 543)
[node name="Props" type="Node2D" parent="YSort"]
y_sort_enabled = true
metadata/_edit_lock_ = true