godot-genre-shooter

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Chinese

Genre: Shooter (FPS/TPS)

游戏类型：射击游戏（FPS/TPS）

Gunplay feel, responsive combat, and competitive balance define shooters.

枪械手感、流畅的战斗体验以及竞技平衡性是射击游戏的核心要素。

Available Scripts

可用脚本

advanced_weapon_controller.gd

Expert pattern for recoil, bloom, and dual hitscan/projectile systems with object pooling notes.

包含后坐力、扩散以及双Hitscan/投射物系统的专家级实现方案，附带对象池相关说明。

Core Loop

核心循环

Engage → Aim → Fire → Kill Confirm → Acquire Next

Engage → Aim → Fire → Kill Confirm → Acquire Next

NEVER Do in Shooters

射击游戏开发禁忌

NEVER use
_process()
for hit detection — Hitscan MUST use physics raycasts in
```
_physics_process()
```
or on-demand. Frame-rate dependent accuracy breaks competitive integrity.
NEVER apply recoil to the weapon model transform — Recoil affects CAMERA rotation (view) and SPREAD (accuracy), not the gun's visual position. Players learn to control camera, not 3D models.
NEVER use single
AudioStreamPlayer
for gunfire — Layered audio (shot + mechanical + tail) creates punchy feel. Single-stream guns sound flat and amateurish.
NEVER sync projectiles with
rpc()
per-bullet — Bandwidth death. Use client-side prediction for visuals, server-authoritative hit validation. Compress: send firing event, not each frame's position.
NEVER use
Area3D
overlap for hitscan hits — This is 10-100x slower than
```
PhysicsRayQueryParameters3D
```
. Areas are for triggers (health pickups), not instant ballistics.
NEVER hardcode damage values in weapon script — Export stats to
```
Resource
```
for weapon data. Designers need iteration without code changes. Use
```
WeaponData.tres
```
.
NEVER allow client-authoritative hit decisions in multiplayer — Client says "I shot you" = hacking paradise. Server validates all damage with lag compensation (rewinding).

绝对不要使用
_process()
进行命中检测 — Hitscan必须在
```
_physics_process()
```
中或按需使用物理射线检测。依赖帧率的判定精度会破坏竞技公平性。
绝对不要将后坐力应用到武器模型的变换组件上 — 后坐力影响的是相机旋转（视角）和扩散（精度），而非枪械的视觉位置。玩家需要适应的是相机控制，而非3D模型的移动。
绝对不要使用单个
AudioStreamPlayer
播放枪声 — 分层音频（主枪声+机械声+尾音）能打造更有冲击力的音效。单轨枪声听起来平淡且业余。
绝对不要通过
rpc()
同步每一发投射物 — 这会导致带宽耗尽。使用客户端预测处理视觉效果，由服务器进行权威命中验证。优化方案：仅发送开火事件，而非每帧的位置数据。
绝对不要使用
Area3D
的重叠检测实现Hitscan命中 — 这比
```
PhysicsRayQueryParameters3D
```
慢10-100倍。Area组件适用于触发类功能（如拾取生命值），而非即时弹道检测。
绝对不要在武器脚本中硬编码伤害值 — 将属性导出到
```
Resource
```
中存储武器数据。这样设计师无需修改代码即可调整数值。使用
```
WeaponData.tres
```
文件。
绝对不要在多人游戏中让客户端拥有命中判定权限 — 若由客户端判定“我击中了你”，会滋生大量外挂。服务器需通过延迟补偿（回滚机制）验证所有伤害。

Weapon System Architecture

武器系统架构

gdscript

class_name Weapon
extends Node3D

@export_group("Stats")
@export var damage: int = 20
@export var fire_rate: float = 0.1  # Seconds between shots
@export var magazine_size: int = 30
@export var reload_time: float = 2.0
@export var range: float = 100.0

@export_group("Recoil")
@export var base_recoil: Vector2 = Vector2(0.5, 2.0)  # X, Y degrees
@export var recoil_recovery_speed: float = 5.0
@export var max_spread: float = 5.0

@export_group("Type")
@export var is_hitscan: bool = true
@export var projectile_scene: PackedScene

var current_ammo: int
var can_fire: bool = true
var current_recoil: Vector2 = Vector2.ZERO
var current_spread: float = 0.0

signal fired
signal reloaded
signal ammo_changed(current: int, max: int)

gdscript

class_name Weapon
extends Node3D

@export_group("Stats")
@export var damage: int = 20
@export var fire_rate: float = 0.1  # Seconds between shots
@export var magazine_size: int = 30
@export var reload_time: float = 2.0
@export var range: float = 100.0

@export_group("Recoil")
@export var base_recoil: Vector2 = Vector2(0.5, 2.0)  # X, Y degrees
@export var recoil_recovery_speed: float = 5.0
@export var max_spread: float = 5.0

@export_group("Type")
@export var is_hitscan: bool = true
@export var projectile_scene: PackedScene

var current_ammo: int
var can_fire: bool = true
var current_recoil: Vector2 = Vector2.ZERO
var current_spread: float = 0.0

signal fired
signal reloaded
signal ammo_changed(current: int, max: int)

Hitscan vs Projectile

Hitscan vs 投射物

Hitscan (Instant Hit)

Hitscan（即时命中）

gdscript

func fire_hitscan() -> void:
    if not can_fire or current_ammo <= 0:
        return
    
    current_ammo -= 1
    ammo_changed.emit(current_ammo, magazine_size)
    
    var camera := get_viewport().get_camera_3d()
    var ray_origin := camera.global_position
    var ray_direction := -camera.global_basis.z
    
    # Apply spread
    ray_direction = apply_spread(ray_direction)
    
    var space := get_world_3d().direct_space_state
    var query := PhysicsRayQueryParameters3D.create(
        ray_origin,
        ray_origin + ray_direction * range
    )
    query.collision_mask = collision_mask
    
    var result := space.intersect_ray(query)
    if result:
        var hit_point: Vector3 = result.position
        var hit_normal: Vector3 = result.normal
        var hit_object: Object = result.collider
        
        spawn_impact_effect(hit_point, hit_normal)
        
        if hit_object.has_method("take_damage"):
            var hit_zone := determine_hit_zone(result)
            var final_damage := calculate_damage(damage, hit_zone)
            hit_object.take_damage(final_damage, hit_zone)
    
    apply_recoil()
    start_fire_cooldown()
    fired.emit()

func determine_hit_zone(result: Dictionary) -> String:
    # Use collision shape name or bone detection for hitboxes
    if "headshot" in result.collider.name.to_lower():
        return "head"
    elif "chest" in result.collider.name.to_lower():
        return "chest"
    return "body"

func calculate_damage(base: int, zone: String) -> int:
    match zone:
        "head": return int(base * 2.5)
        "chest": return int(base * 1.0)
        _: return int(base * 0.8)

gdscript

func fire_hitscan() -> void:
    if not can_fire or current_ammo <= 0:
        return
    
    current_ammo -= 1
    ammo_changed.emit(current_ammo, magazine_size)
    
    var camera := get_viewport().get_camera_3d()
    var ray_origin := camera.global_position
    var ray_direction := -camera.global_basis.z
    
    # Apply spread
    ray_direction = apply_spread(ray_direction)
    
    var space := get_world_3d().direct_space_state
    var query := PhysicsRayQueryParameters3D.create(
        ray_origin,
        ray_origin + ray_direction * range
    )
    query.collision_mask = collision_mask
    
    var result := space.intersect_ray(query)
    if result:
        var hit_point: Vector3 = result.position
        var hit_normal: Vector3 = result.normal
        var hit_object: Object = result.collider
        
        spawn_impact_effect(hit_point, hit_normal)
        
        if hit_object.has_method("take_damage"):
            var hit_zone := determine_hit_zone(result)
            var final_damage := calculate_damage(damage, hit_zone)
            hit_object.take_damage(final_damage, hit_zone)
    
    apply_recoil()
    start_fire_cooldown()
    fired.emit()

func determine_hit_zone(result: Dictionary) -> String:
    # Use collision shape name or bone detection for hitboxes
    if "headshot" in result.collider.name.to_lower():
        return "head"
    elif "chest" in result.collider.name.to_lower():
        return "chest"
    return "body"

func calculate_damage(base: int, zone: String) -> int:
    match zone:
        "head": return int(base * 2.5)
        "chest": return int(base * 1.0)
        _: return int(base * 0.8)

Projectile (Physical Bullet)

投射物（实体子弹）

gdscript

class_name Projectile
extends CharacterBody3D

@export var speed := 100.0
@export var damage := 20
@export var gravity_affected := true
@export var lifetime := 5.0

var direction: Vector3
var shooter: Node3D

func _ready() -> void:
    await get_tree().create_timer(lifetime).timeout
    queue_free()

func _physics_process(delta: float) -> void:
    if gravity_affected:
        velocity.y -= 9.8 * delta
    
    velocity = direction * speed
    var collision := move_and_collide(velocity * delta)
    
    if collision:
        var collider := collision.get_collider()
        if collider != shooter and collider.has_method("take_damage"):
            collider.take_damage(damage)
        spawn_impact(collision.get_position(), collision.get_normal())
        queue_free()

gdscript

class_name Projectile
extends CharacterBody3D

@export var speed := 100.0
@export var damage := 20
@export var gravity_affected := true
@export var lifetime := 5.0

var direction: Vector3
var shooter: Node3D

func _ready() -> void:
    await get_tree().create_timer(lifetime).timeout
    queue_free()

func _physics_process(delta: float) -> void:
    if gravity_affected:
        velocity.y -= 9.8 * delta
    
    velocity = direction * speed
    var collision := move_and_collide(velocity * delta)
    
    if collision:
        var collider := collision.get_collider()
        if collider != shooter and collider.has_method("take_damage"):
            collider.take_damage(damage)
        spawn_impact(collision.get_position(), collision.get_normal())
        queue_free()

Recoil System

后坐力系统

Three types of recoil working together:

gdscript

class_name RecoilSystem
extends Node

var visual_recoil: Vector2 = Vector2.ZERO    # Camera kick
var pattern_offset: Vector2 = Vector2.ZERO   # Deterministic pattern
var spread_bloom: float = 0.0                # Accuracy loss

@export var recoil_pattern: Array[Vector2]   # Predefined spray pattern
var pattern_index: int = 0

func apply_recoil(weapon: Weapon) -> void:
    # 1. Visual recoil - camera kick
    visual_recoil.y += weapon.base_recoil.y * randf_range(0.8, 1.2)
    visual_recoil.x += weapon.base_recoil.x * randf_range(-1.0, 1.0)
    
    # 2. Pattern recoil - learnable spray
    if pattern_index < recoil_pattern.size():
        pattern_offset += recoil_pattern[pattern_index]
        pattern_index += 1
    
    # 3. Spread bloom - reduced accuracy
    spread_bloom = min(spread_bloom + 0.5, weapon.max_spread)

func recover_recoil(delta: float, recovery_speed: float) -> void:
    visual_recoil = visual_recoil.lerp(Vector2.ZERO, recovery_speed * delta)
    pattern_offset = pattern_offset.lerp(Vector2.ZERO, recovery_speed * delta)
    spread_bloom = lerp(spread_bloom, 0.0, recovery_speed * delta)
    
    if visual_recoil.length() < 0.01:
        pattern_index = 0  # Reset pattern

func get_spread_direction(base_direction: Vector3) -> Vector3:
    var spread_angle := deg_to_rad(spread_bloom)
    var random_offset := Vector2(
        randf_range(-spread_angle, spread_angle),
        randf_range(-spread_angle, spread_angle)
    )
    return base_direction.rotated(Vector3.UP, random_offset.x).rotated(Vector3.RIGHT, random_offset.y)

三种后坐力机制协同工作：

gdscript

class_name RecoilSystem
extends Node

var visual_recoil: Vector2 = Vector2.ZERO    # Camera kick
var pattern_offset: Vector2 = Vector2.ZERO   # Deterministic pattern
var spread_bloom: float = 0.0                # Accuracy loss

@export var recoil_pattern: Array[Vector2]   # Predefined spray pattern
var pattern_index: int = 0

func apply_recoil(weapon: Weapon) -> void:
    # 1. Visual recoil - camera kick
    visual_recoil.y += weapon.base_recoil.y * randf_range(0.8, 1.2)
    visual_recoil.x += weapon.base_recoil.x * randf_range(-1.0, 1.0)
    
    # 2. Pattern recoil - learnable spray
    if pattern_index < recoil_pattern.size():
        pattern_offset += recoil_pattern[pattern_index]
        pattern_index += 1
    
    # 3. Spread bloom - reduced accuracy
    spread_bloom = min(spread_bloom + 0.5, weapon.max_spread)

func recover_recoil(delta: float, recovery_speed: float) -> void:
    visual_recoil = visual_recoil.lerp(Vector2.ZERO, recovery_speed * delta)
    pattern_offset = pattern_offset.lerp(Vector2.ZERO, recovery_speed * delta)
    spread_bloom = lerp(spread_bloom, 0.0, recovery_speed * delta)
    
    if visual_recoil.length() < 0.01:
        pattern_index = 0  # Reset pattern

func get_spread_direction(base_direction: Vector3) -> Vector3:
    var spread_angle := deg_to_rad(spread_bloom)
    var random_offset := Vector2(
        randf_range(-spread_angle, spread_angle),
        randf_range(-spread_angle, spread_angle)
    )
    return base_direction.rotated(Vector3.UP, random_offset.x).rotated(Vector3.RIGHT, random_offset.y)

Aim Assist (Controller Support)

瞄准辅助（手柄支持）

gdscript

class_name AimAssist
extends Node3D

@export var assist_range := 50.0
@export var assist_angle := 15.0  # Degrees
@export var friction_strength := 0.3  # Slowdown near targets
@export var magnetism_strength := 0.1  # Pull toward targets

func apply_aim_assist(look_input: Vector2, camera: Camera3D) -> Vector2:
    var target := find_closest_target(camera)
    if not target:
        return look_input
    
    var to_target := target.global_position - camera.global_position
    var camera_forward := -camera.global_basis.z
    var angle := rad_to_deg(camera_forward.angle_to(to_target.normalized()))
    
    if angle > assist_angle:
        return look_input
    
    # Friction - slow movement near targets
    var friction := 1.0 - (friction_strength * (1.0 - angle / assist_angle))
    look_input *= friction
    
    # Magnetism - subtle pull toward target
    var target_screen_pos := camera.unproject_position(target.global_position)
    var screen_center := get_viewport().get_visible_rect().size / 2
    var pull_direction := (target_screen_pos - screen_center).normalized()
    look_input += pull_direction * magnetism_strength * (1.0 - angle / assist_angle)
    
    return look_input

func find_closest_target(camera: Camera3D) -> Node3D:
    var closest: Node3D = null
    var closest_angle := assist_angle
    
    for target in get_tree().get_nodes_in_group("enemies"):
        var to_target := target.global_position - camera.global_position
        var angle := rad_to_deg((-camera.global_basis.z).angle_to(to_target.normalized()))
        
        if angle < closest_angle and to_target.length() < assist_range:
            if has_line_of_sight(camera.global_position, target.global_position):
                closest = target
                closest_angle = angle
    
    return closest

gdscript

class_name AimAssist
extends Node3D

@export var assist_range := 50.0
@export var assist_angle := 15.0  # Degrees
@export var friction_strength := 0.3  # Slowdown near targets
@export var magnetism_strength := 0.1  # Pull toward targets

func apply_aim_assist(look_input: Vector2, camera: Camera3D) -> Vector2:
    var target := find_closest_target(camera)
    if not target:
        return look_input
    
    var to_target := target.global_position - camera.global_position
    var camera_forward := -camera.global_basis.z
    var angle := rad_to_deg(camera_forward.angle_to(to_target.normalized()))
    
    if angle > assist_angle:
        return look_input
    
    # Friction - slow movement near targets
    var friction := 1.0 - (friction_strength * (1.0 - angle / assist_angle))
    look_input *= friction
    
    # Magnetism - subtle pull toward target
    var target_screen_pos := camera.unproject_position(target.global_position)
    var screen_center := get_viewport().get_visible_rect().size / 2
    var pull_direction := (target_screen_pos - screen_center).normalized()
    look_input += pull_direction * magnetism_strength * (1.0 - angle / assist_angle)
    
    return look_input

func find_closest_target(camera: Camera3D) -> Node3D:
    var closest: Node3D = null
    var closest_angle := assist_angle
    
    for target in get_tree().get_nodes_in_group("enemies"):
        var to_target := target.global_position - camera.global_position
        var angle := rad_to_deg((-camera.global_basis.z).angle_to(to_target.normalized()))
        
        if angle < closest_angle and to_target.length() < assist_range:
            if has_line_of_sight(camera.global_position, target.global_position):
                closest = target
                closest_angle = angle
    
    return closest

Weapon Feel Polish

枪械手感优化

Camera Effects

相机特效

gdscript

func on_weapon_fired() -> void:
    # Screen shake
    camera_shake(0.1, 0.05)
    
    # FOV punch
    camera.fov += 2.0
    await get_tree().create_timer(0.05).timeout
    camera.fov -= 2.0
    
    # Muzzle flash
    muzzle_flash.visible = true
    await get_tree().create_timer(0.02).timeout
    muzzle_flash.visible = false

func on_weapon_reloaded() -> void:
    # Lock controls during reload
    can_fire = false
    can_aim = false
    
    play_animation("reload")
    await get_tree().create_timer(reload_time).timeout
    
    current_ammo = magazine_size
    can_fire = true
    can_aim = true

gdscript

func on_weapon_fired() -> void:
    # Screen shake
    camera_shake(0.1, 0.05)
    
    # FOV punch
    camera.fov += 2.0
    await get_tree().create_timer(0.05).timeout
    camera.fov -= 2.0
    
    # Muzzle flash
    muzzle_flash.visible = true
    await get_tree().create_timer(0.02).timeout
    muzzle_flash.visible = false

func on_weapon_reloaded() -> void:
    # Lock controls during reload
    can_fire = false
    can_aim = false
    
    play_animation("reload")
    await get_tree().create_timer(reload_time).timeout
    
    current_ammo = magazine_size
    can_fire = true
    can_aim = true

Audio Layering

音频分层

gdscript

@export var fire_sounds: Array[AudioStream]  # Random selection
@export var tail_sound: AudioStream           # Reverb/echo
@export var mechanical_sound: AudioStream     # Gun mechanism

func play_fire_audio() -> void:
    # Main shot
    var shot := fire_sounds.pick_random()
    fire_audio_player.stream = shot
    fire_audio_player.play()
    
    # Mechanical click
    mechanical_player.play()
    
    # Tail (delayed reverb)
    await get_tree().create_timer(0.1).timeout
    tail_player.play()

gdscript

@export var fire_sounds: Array[AudioStream]  # Random selection
@export var tail_sound: AudioStream           # Reverb/echo
@export var mechanical_sound: AudioStream     # Gun mechanism

func play_fire_audio() -> void:
    # Main shot
    var shot := fire_sounds.pick_random()
    fire_audio_player.stream = shot
    fire_audio_player.play()
    
    # Mechanical click
    mechanical_player.play()
    
    # Tail (delayed reverb)
    await get_tree().create_timer(0.1).timeout
    tail_player.play()

Weapon Selection Decision Tree

武器选型决策树

When designing weapon balance:

High fire rate (SMG) = Low damage per shot, rewards tracking aim
Low fire rate (Sniper) = High damage, rewards precision
Shotguns = Spread pattern (5-8 pellets), effective range <10m
ARs = Jack-of-all-trades, medium everything

Technical implementation:

Pistol/AR: Hitscan (instant feedback)
Rocket/Grenade: Projectile with gravity
S niper: Hitscan with tracer visual

设计武器平衡时：

高射速（如SMG）= 单发伤害低，奖励持续瞄准追踪
低射速（如狙击枪）= 单发伤害高，奖励精准瞄准
霰弹枪 = 扩散模式（5-8发弹丸），有效射程<10米
突击步枪 = 全能型，各项属性中等

技术实现方案：

手枪/突击步枪：使用Hitscan（即时反馈）
火箭筒/手雷：使用带重力的投射物
狙击枪：使用Hitscan并添加弹道轨迹视觉效果

Multiplayer Client Prediction Pattern

多人游戏客户端预测模式

gdscript

undefined

gdscript

undefined

CLIENT: Instant feedback, no waiting for server

func fire_client() -> void: play_effects_immediate() # Muzzle flash, recoil, audio local_hitscan_visual() # Visual blood splatter only rpc_id(1, "server_validate_shot", camera.global_transform)

SERVER: Authoritative damage

@rpc("any_peer") func server_validate_shot(shooter_transform: Transform3D) -> void: var hit = perform_server_hitscan(shooter_transform) if hit and is_valid_shot(hit): rpc("confirm_hit", hit.victim_id, hit.damage)

EDGE CASE: What if client's visual hit doesn't match server?

SOLUTION: Server wins. Client shows "no reg" indicator if mismatch.

undefined

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Common Pitfalls & Expert Fixes

常见陷阱与专家解决方案

Weak bullet impact → Triple-layer audio (shot+tail+mechanical) + screen shake + blood VFX + damage number
Guns feel identical → Unique recoil patterns (SMG: tight vertical, AK: strong horizontal kick)
No skill ceiling → Learnable spray patterns (CS:GO style), not pure RNG spread
Controller aim frustration → Friction (0.3 slowdown near targets) + subtle 0.1 magnetism

子弹冲击力弱 → 使用三层音频（主枪声+尾音+机械声）+ 屏幕震动 + 血液特效 + 伤害数值显示
所有枪械手感雷同 → 设计独特的后坐力模式（如SMG：紧凑垂直后坐，AK：强烈水平后坐）
缺乏技术上限 → 使用可学习的扫射模式（类似CS:GO），而非纯随机扩散
手柄瞄准体验差 → 添加摩擦力（目标附近减速0.3）+ 轻微磁吸（0.1强度）

Godot-Specific Tips

Godot专属技巧

Raycasts: Use
```
PhysicsRayQueryParameters3D
```
with proper layer masks
Projectiles:
```
CharacterBody3D
```
or
```
RigidBody3D
```
depending on physics needs
Audio: Multiple
```
AudioStreamPlayer3D
```
for layered gun sounds
Animations:
```
AnimationTree
```
for weapon state machines (idle, aim, fire, reload)

射线检测：使用
```
PhysicsRayQueryParameters3D
```
并设置正确的层掩码
投射物：根据物理需求选择
```
CharacterBody3D
```
或
```
RigidBody3D
```
音频：使用多个
```
AudioStreamPlayer3D
```
实现分层枪声
动画：使用
```
AnimationTree
```
实现武器状态机（ idle、瞄准、开火、换弹）

Reference

参考资料

Master Skill: godot-master

大师技能：godot-master