请问这个脚本的“踩踏/置物判断”要如何判断事件的？ - Project1

#==============================================================================
# ☆ Custom Adventure 踩踏/置物判断
# -- Last Updated: 2014.6.3
# -- by Moy
# -- 转载请保留以上信息
#==============================================================================
# 本脚本判断一个在人物下层的事件是否被其他事件/角色踩踏
# 对本事件使用只需要在分歧脚本中使用get_character(0).stepped_on?即可。
# 判断别的事件请自行获取实例后使用。
#==============================================================================
# ■ Game_Event
#==============================================================================
class Game_Event < Game_Character
#--------------------------------------------------------------------------
# ● 判断本事件是否被其他事件/角色踩踏
#--------------------------------------------------------------------------
def stepped_on?#被事件踩踏
stepped_by_events?(@x,@y) #|| stepped_by_player_characters?(@x, @y)
end
def stepped_on1?#被主角踩踏
stepped_by_player_characters?(@x, @y)
end
def stepped_on2?#被主角和事件踩踏
stepped_by_events?(@x,@y) || stepped_by_player_characters?(@x, @y)
end
#--------------------------------------------------------------------------
# ● 判断某位置是否被其他事件踩踏
#--------------------------------------------------------------------------
def stepped_by_events?(x, y)
$game_map.events_xy_nt(x, y).any? do |event|
event.normal_priority?
end
end
#--------------------------------------------------------------------------
# ● 判断某位置是否被主控角色踩踏
#--------------------------------------------------------------------------
def stepped_by_player_characters?(x, y)
@priority_type == 0 && $game_player.collide?(x, y)
end
end

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