function key_class()constructor{
	
	static key_fun=function()constructor{
		list=[]
		//static function(){}
		static set=function(k){
			array_push(list,k)
			return self
		}
		static get=function(m){
			var f=keyboard_check
			if m=1 f=keyboard_check_pressed
			if m=2 f=keyboard_check_released
			var size=array_length(list)
			for(var i=0;i<size;i++){
				if f(list[i]) return 1
			}
			
			return 0
		}
	}
	static add=function(k){
		variable_struct_set(self,k,new key_fun())
		
		return variable_struct_get(self,k)
	}
}

globalvar key;
key=new key_class()

key.add("left").set(ord("A"))
key.add("right").set(ord("D"))
key.add("up").set(ord("W"))
key.add("down").set(ord("S"))

key.add("atk").set(ord("S")).set(ord("J"))
key.add("jump").set(ord("W")).set(ord("K"))

show_debug_message(key)

function string_load(f)//从文件读取字符串
{
    var _buffer = buffer_load(f);
    var _string = buffer_read(_buffer, buffer_string);
    buffer_delete(_buffer);
    return _string;
}
function json_load(f){//从文件读取json
    try {
        return json_parse(string_load(f))
    } catch (e) {
    	show_debug_message(e)
    	return -1
    }
}

function trace(){//输出所有内容
	var l=argument_count
	show_debug_message("")
	show_debug_message("================")
	show_debug_message("trace :"+string(current_time)+": ms")
	show_debug_message(" -------------- ")
	for(var i=0;i<l;i++){
		show_debug_message(argument[i])
	}
	show_debug_message("================")
	show_debug_message("")
}

function format(){//格式化文本 format("{}a{}b{}c",$1,$2,$3)
	var text = argument[0];
	var escape_open_brace_suffix  = "|"; // Suffix open brace escape character (e.g. "{|hello}")

	// Checks:
	/*
	// Return original text if no open curly braces are found
	if !string_count("{", text) {return (text);}

	// More thorough, can be less performant, return original text if all curly braces are escaped
	if (string_count("{", text) - string_count("{" + string(escape_open_brace_suffix), text) == 0) {return (text);}
	*/

	// Simple Formatting: format("Hello {}", "World");
	if string_pos("{}", text) 
	{
		for (var i = 0; i < argument_count - 1; ++i)
		{
			text = string_replace(text, "{}", argument[i + 1]);
		}
	}

	// Positional Index Formatting: format("{1} {0}", "World", "Hello");
	else if string_pos("{0}", text)
	{
		for (var i = 0; i < argument_count - 1; ++i)
		{
			text = string_replace(text, "{" + string(i) + "}", argument[i + 1]);
		}
	}

	// Variable Formatting: var x = "World"; format("Hello {x}");
	else if string_pos("{", text)
	{
		var variable;
		var count = string_count("{", text);

		for (var i = 0; i < count; ++i)
		{
			// Get variable name between curly braces
			variable = string_copy(text, string_pos("{", text) + 1, string_pos("}", text) - string_pos("{", text) - 1);
		
			// Ignore escaped curly brace "{|"
			if (string_char_at(variable, 1) == escape_open_brace_suffix)
			{
				continue;
			}
		
			// If variable starts with "$", get global variable
			if (string_char_at(variable, 1) == "$")
			{
				text = string_replace(text, "{" + string(variable) + "}", string(variable_global_get(string_copy(variable, 2, string_length(variable)))));
			}

			// Else get local variable from the calling instance
			else
			{
				var t = self
				text = string_replace(text, "{" + string(variable) + "}", t[$variable]);
			}
		}
	}

	text = string_replace_all(text, "{" + string(escape_open_brace_suffix), "{");

	return (text);

}

function t2sin(ms){//简单来讲就是在毫秒内反复0到1
	ms ??=1000
	var _ct = current_time mod ms;
	var _ct=dsin(360/ms*_ct)
	return (_ct+1)*0.5
}

顺子 同上

同上