From 2867918c92d7285389c3aad42d6ffd792e361819 Mon Sep 17 00:00:00 2001
From: teatov <hlebpoimenigleb@gmail.com>
Date: Thu, 13 Feb 2025 19:43:21 +1000
Subject: [PATCH] add camera effects for running and crouching

---
 scripts/globals/settings.gd |  4 ++++
 scripts/player.gd           | 22 ++++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/scripts/globals/settings.gd b/scripts/globals/settings.gd
index 9a30f72..0250906 100644
--- a/scripts/globals/settings.gd
+++ b/scripts/globals/settings.gd
@@ -4,6 +4,10 @@ const SETTING_USAGE_FLAG := PROPERTY_USAGE_SCRIPT_VARIABLE | PROPERTY_USAGE_EDIT
 const CONFIG_PATH := "user://settings.cfg"
 
 @export_group("Gameplay")
+@export_subgroup("Camera")
+@export var camera_fov: float = 75:
+	set(value):
+		camera_fov = value
 
 @export_group("Video")
 @export_subgroup("Display")
diff --git a/scripts/player.gd b/scripts/player.gd
index e3964fe..c51da11 100644
--- a/scripts/player.gd
+++ b/scripts/player.gd
@@ -11,10 +11,16 @@ const JUMP_FORCE: float = 10
 const FALL_SPEED: float = 20
 const FALL_ACCELERATION: float = 25
 
+const CAMERA_CROUCH_HEIGHT: float = 1
+const CAMERA_HEIGHT_SPEED: float = 5
+const CAMERA_RUN_EXTRA_FOV: float = 5
+const CAMERA_FOV_SPEED: float = 50
+
 @export var _respawn_height: float = -100
 
 var _peer_id: int = 1
 var _respawn_point: Vector3
+var _default_camera_height: float
 
 @onready var _camera: Camera3D = $Camera3D
 @onready var _name_label: Label3D = $NameLabel
@@ -31,6 +37,7 @@ func _ready() -> void:
 	if not is_multiplayer_authority():
 		return
 
+	_default_camera_height = _camera.position.y
 	_respawn_point = global_position
 	_camera.make_current()
 	Referencer.player = self
@@ -59,6 +66,7 @@ func _process(delta: float) -> void:
 
 	_process_respawning()
 	_process_controller_rotating(delta)
+	_process_camera(delta)
 
 
 func _physics_process(delta: float) -> void:
@@ -122,6 +130,20 @@ func _process_controller_rotating(delta: float) -> void:
 	_camera.rotation.x = clampf(_camera.rotation.x, PI / -2, PI / 2)
 
 
+func _process_camera(delta: float) -> void:
+	var camera_height := _default_camera_height
+	if Input.is_action_pressed("crouch"):
+		camera_height = CAMERA_CROUCH_HEIGHT
+	_camera.position.y = move_toward(
+		_camera.position.y, camera_height, CAMERA_HEIGHT_SPEED * delta
+	)
+
+	var camera_fov := Settings.camera_fov
+	if Input.is_action_pressed("run"):
+		camera_fov += CAMERA_RUN_EXTRA_FOV
+	_camera.fov = move_toward(_camera.fov, camera_fov, CAMERA_FOV_SPEED * delta)
+
+
 func _lateral_movement(delta: float) -> void:
 	var input_dir := Input.get_vector(
 		"move_left", "move_right", "move_forward", "move_back"