141 lines
4.4 KiB
GDScript
141 lines
4.4 KiB
GDScript
extends Camera2D
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# 相机移动速度
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@export var move_speed: float = 400.0 # 每秒移动的像素数
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@export var zoom_speed: float = 0.02 # 缩放速度
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@export var min_zoom: float = 0.7 # 最小缩放值
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@export var max_zoom: float = 1.2 # 最大缩放值
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# 移动端触摸设置
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@export var touch_sensitivity: float = 1.0 # 触摸灵敏度
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@export var enable_touch_zoom: bool = true # 是否启用双指缩放
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# 移动边界（可选）
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@export var bounds_enabled: bool = false
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@export var bounds_min: Vector2 = Vector2(-1000, -1000)
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@export var bounds_max: Vector2 = Vector2(1000, 1000)
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var current_zoom_level: float = 1.6
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# 触摸相关变量
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var is_dragging: bool = false
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var last_touch_position: Vector2
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var touch_points: Dictionary = {} # 存储多点触摸信息
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var initial_zoom_distance: float = 0.0
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func _ready():
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# 初始化相机
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zoom = Vector2(current_zoom_level, current_zoom_level)
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func _process(delta):
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if GlobalVariables.isZoomDisabled == true:
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return
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# 处理相机移动
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var input_dir = Vector2.ZERO
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# WASD 键移动
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if Input.is_action_pressed("ui_up") or Input.is_key_pressed(KEY_W):
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input_dir.y -= 1
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if Input.is_action_pressed("ui_down") or Input.is_key_pressed(KEY_S):
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input_dir.y += 1
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if Input.is_action_pressed("ui_left") or Input.is_key_pressed(KEY_A):
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input_dir.x -= 1
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if Input.is_action_pressed("ui_right") or Input.is_key_pressed(KEY_D):
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input_dir.x += 1
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# 归一化移动向量，确保对角线移动不会更快
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if input_dir.length() > 0:
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input_dir = input_dir.normalized()
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# 相机移动
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position += input_dir * move_speed * delta / current_zoom_level
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# 如果启用了边界限制，确保相机在边界内
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if bounds_enabled:
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position.x = clamp(position.x, bounds_min.x, bounds_max.x)
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position.y = clamp(position.y, bounds_min.y, bounds_max.y)
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# 处理相机缩放KEY_EQUAL
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if Input.is_key_pressed(KEY_EQUAL) or Input.is_key_pressed(KEY_KP_ADD): # + 键放大
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zoom_camera(-zoom_speed)
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if Input.is_key_pressed(KEY_MINUS) or Input.is_key_pressed(KEY_KP_SUBTRACT): # - 键缩小
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zoom_camera(zoom_speed)
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# 处理输入事件（包括触摸和鼠标）
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func _input(event):
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if GlobalVariables.isZoomDisabled == true:
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return
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pass
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# 鼠标滚轮缩放
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if event is InputEventMouseButton:
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if event.button_index == MOUSE_BUTTON_WHEEL_DOWN:
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zoom_camera(-zoom_speed)
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elif event.button_index == MOUSE_BUTTON_WHEEL_UP:
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zoom_camera(zoom_speed)
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# 触摸开始
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elif event is InputEventScreenTouch:
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if event.pressed:
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# 记录触摸点
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touch_points[event.index] = event.position
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if len(touch_points) == 1:
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# 单指触摸，开始拖动
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is_dragging = true
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last_touch_position = event.position
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elif len(touch_points) == 2 and enable_touch_zoom:
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# 双指触摸，准备缩放
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is_dragging = false
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var touches = touch_points.values()
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initial_zoom_distance = touches[0].distance_to(touches[1])
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else:
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# 触摸结束
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if touch_points.has(event.index):
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touch_points.erase(event.index)
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if len(touch_points) == 0:
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is_dragging = false
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elif len(touch_points) == 1:
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# 从双指回到单指，重新开始拖动
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is_dragging = true
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last_touch_position = touch_points.values()[0]
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# 触摸拖动
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elif event is InputEventScreenDrag:
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if touch_points.has(event.index):
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touch_points[event.index] = event.position
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if len(touch_points) == 1 and is_dragging:
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# 单指拖动，移动相机
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var drag_delta = last_touch_position - event.position
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# 根据当前缩放级别调整移动距离
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position += drag_delta * touch_sensitivity / current_zoom_level
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# 应用边界限制
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if bounds_enabled:
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position.x = clamp(position.x, bounds_min.x, bounds_max.x)
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position.y = clamp(position.y, bounds_min.y, bounds_max.y)
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last_touch_position = event.position
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elif len(touch_points) == 2 and enable_touch_zoom:
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# 双指缩放
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var touches = touch_points.values()
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var current_distance = touches[0].distance_to(touches[1])
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if initial_zoom_distance > 0:
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var zoom_factor = current_distance / initial_zoom_distance
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var zoom_change = (zoom_factor - 1.0) * zoom_speed * 10
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zoom_camera(zoom_change)
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initial_zoom_distance = current_distance
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# 缩放相机
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func zoom_camera(zoom_amount):
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current_zoom_level = clamp(current_zoom_level + zoom_amount, min_zoom, max_zoom)
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zoom = Vector2(current_zoom_level, current_zoom_level)
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