143 lines
4.5 KiB
GDScript
143 lines
4.5 KiB
GDScript
extends Node2D
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#网格寻路系统
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var astar:AStarGrid2D=AStarGrid2D.new()
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##当前使用的tilemap的范围开始
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@export var tile_map_area_from:Vector2i
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##当前使用的tilemap的范围结束
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@export var tile_map_area_to:Vector2i
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##color block的颜色指示
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enum ColorBlockSetColor{
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BLACK=0,
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BLUE=1,
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GREEN=2,
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RED=3,
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WHITE=4,
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YELLOW=5
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}
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#镜头部分
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#镜头速度
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var camera_speed:float=1000
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#镜头模式
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enum CameraMode{
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#wsad自由移动
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FREE=0,
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#镜头放大，并且进行一个平滑位移
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FOCUS=1
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}
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##相机模式
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@export var camera_mode:CameraMode=CameraMode.FREE
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##相机基础缩放乘数
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@export var camera_base_zoom_scale:Vector2
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##当前聚焦的相机对象
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@export var camera_focusmode_focus_target:Node2D:
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set(val):
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if camera_mode==CameraMode.FOCUS and val!=camera_focusmode_focus_target:
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if camera_focus_mode_focus_tween!=null:
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camera_focus_mode_focus_tween.kill()
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camera_focus_mode_focus_tween=create_tween()
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camera_focus_mode_focus_tween.tween_property(%main_camera,"globla_position",val.global_position,camera_focus_mode_focus_time)
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camera_focus_mode_focus_tween.set_parallel()
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camera_focus_mode_focus_tween.tween_property(%main_camera,"zoom",camera_base_zoom_scale*camera_focus_mode_focus_scale,camera_focus_mode_focus_time)
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camera_focusmode_focus_target=val
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pass
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#聚焦模式下相机的tween补间动画
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var camera_focus_mode_focus_tween
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#相机聚焦所用时间
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var camera_focus_mode_focus_time:float=0.2
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#相机聚焦倍率
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var camera_focus_mode_focus_scale:float=1.5
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#测试部分
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#测试的角色移动力
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var test_character_move_distance:int=5
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func update_moveable():
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for i in get_children():
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if i is Label:
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i.queue_free()
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%color_block.clear()
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var character_crood:Vector2i=%walkable.local_to_map(%test_character.global_position)
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for i in range(tile_map_area_from.x,tile_map_area_to.x):
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for j in range(tile_map_area_from.y,tile_map_area_to.y):
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var crood=Vector2i(i,j)
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var res=is_move_able(character_crood,crood,test_character_move_distance)
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if res[0]:
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%color_block.set_cell(crood,ColorBlockSetColor.GREEN,Vector2i(0,0))
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else:
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%color_block.set_cell(crood,ColorBlockSetColor.RED,Vector2i(0,0))
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var new_label=Label.new()
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new_label.text=str(res[1])
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new_label.global_position=%walkable.map_to_local(crood)
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add_child(new_label)
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#区域是否可达
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func is_move_able(from:Vector2i,to:Vector2i,move_distance:int):
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var res=get_walkable_path(from,to)
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if not res[0]:
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return [false,0,null]
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var distance=res[1]
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if move_distance>=distance:
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return [true,res[1],res[2]]
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else:
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return [false,0,null]
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func _ready() -> void:
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astar.default_compute_heuristic=AStarGrid2D.HEURISTIC_MANHATTAN
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astar.default_estimate_heuristic=AStarGrid2D.HEURISTIC_MANHATTAN
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astar.diagonal_mode=AStarGrid2D.DIAGONAL_MODE_NEVER
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astar.region=Rect2i(tile_map_area_from,tile_map_area_to-tile_map_area_from)
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astar.update()
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update_astar_from_walkable_map()
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update_moveable()
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#从可行走tilemap图中同步到astar寻路中
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func update_astar_from_walkable_map():
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for i in range(tile_map_area_from.x,tile_map_area_to.x):
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for j in range(tile_map_area_from.y,tile_map_area_to.y):
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var crood=Vector2i(i,j)
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var tile_data=%walkable.get_cell_tile_data(crood)
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if tile_data !=null and tile_data.get_custom_data("walkable"):
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astar.set_point_solid(crood,false)
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else:
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astar.set_point_solid(crood,true)
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astar.update()
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#获取两点之间的最短可达路径，返回一个数组，0下标未是否可达，1下标为距离，2下标为途径点数组
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func get_walkable_path(from:Vector2i,to:Vector2i)->Array:
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#如果不在要求的tilemap范围内，则返回不可达
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if to.x<tile_map_area_from.x or to.x>tile_map_area_to.x or to.y<tile_map_area_from.y or to.y>tile_map_area_to.y:
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return [false,0,null]
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var arr=astar.get_id_path(from,to)
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if arr==null or (arr is Array and arr.size()<=0):
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return [false,0,null]
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return [true,arr.size()-1,arr]
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pass
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func _process(delta: float) -> void:
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match camera_mode:
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CameraMode.FREE:
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var input=Input.get_vector("a","d","w","s").normalized()
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%main_camera.position+=input*delta*camera_speed
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CameraMode.FOCUS:
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pass
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if Input.is_action_just_pressed("mouse_left"):
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print("click")
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var from_crood=%walkable.local_to_map(%test_character.global_position)
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var crood=%walkable.local_to_map(get_global_mouse_position())
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var res=is_move_able(from_crood,crood,test_character_move_distance)
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print(res)
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if res[0]:
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%test_character.global_position=%walkable.map_to_local(crood)
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update_moveable()
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