游戏本身自带，只是制作组隐藏了解锁方式，非MOD武器，效果挺好看的，就是距离较近，如果更改射程可以真正意义上变成超远距离直线杀伤武器电磁炮，粗又硬，如下图
修改后的效果，没有修改弹药图效宽度，注意看森林：
修改后的实际攻击范围：
下面附上解锁方法：
找到游戏文件位置
X:\Factorio\data\base\prototypes\technology\technology.lua
查找字符串：
name = "military-3",
找到如下字符串
{
type = "technology",
name = "military-3",
icon = "__base__/graphics/technology/military.png",
effects =
{
--[[（这行消掉
{
type = "unlock-recipe",
recipe = "railgun"
},
{
type = "unlock-recipe",
recipe = "railgun-dart"
},]]--（这行逗号之后消掉
{
type = "unlock-recipe",
被去掉的为隐藏解锁科技的命令
如此一来尚未解锁军工事3科技的玩家在解锁军工事3后就会正常解锁电磁炮及专属弹药
如果已经解锁过军工业3的可以使用下面的方法
将刚才的字符段中
--[[
{
type = "unlock-recipe",
recipe = "railgun"
},
{
type = "unlock-recipe",
recipe = "railgun-dart"
},]]--
这段删除
并在文件最后部分
{
type = "unlock-recipe",
recipe = "science-pack-3"
}
},
order = "b-c"
}（这里右大括号后添加逗号，英文键盘
这里
}
)
在标注这里的地方插入空格，复制如下字符串，并根据提示修改，中文及左边的左小括号为提示内容，复制的时候请自行删去
{
type = "technology",
name = "railgun",
icon = "__base__/graphics/icons/railgun.png",
effects =
{
{
type = "unlock-recipe",
recipe = "railgun"
},
{
type = "unlock-recipe",
recipe = "railgun-dart"
},
},
prerequisites = {"steel-processing"},（这里为前置科技，研发完前置科技即可研发本科技解锁电磁枪，这里为钢科技，想直接解锁的可以直接将本行删去，但会减去不少解锁深层科技的成就感
unit =
{
count = 1000,（需要科技包组数，结合下方即需要4种科技包各1000个
ingredients =
{
{"alien-science-pack", 1}, （外星科技包 紫 （这里四行为需要的科技包类型，可以自行删减
{"science-pack-1", 1},（科技包1 红
{"science-pack-2", 1},（科技包2 绿
{"science-pack-3", 1}（科技包3 蓝
},
time = 60（研究一轮所需时间
},
order = "k-b"
}
另外附上枪械与专属弹药数据，不放图样地址，想修改弹药动画效果的可以自己找
弹药：
X:\Factorio\data\base\prototypes\item\ammo.lua
查找如下字符串
name = "railgun-dart",
找到如下段落
{
type = "ammo",
name = "railgun-dart",
icon = "__base__/graphics/icons/railgun-ammo.png",
flags = {"goes-to-main-inventory"},
ammo_type =
{
category = "railgun",
target_type = "direction",
action =
{
type = "line",（弹药效果类型
range = 25,（距离，附图中距离为128
width = 0.5,（宽度，为伤害实际宽度，不是效果宽度，附图中距离为32
source_effects =
{
type = "create-entity",
entity_name = "railgun-beam"（弹药实体
},
action_delivery =
{
type = "instant",（造成伤害的方式
target_effects =
{
type = "damage",
damage = { amount = 100, type="physical"}（伤害数值与类型
}
}
}
},
magazine_size = 5,（每发弹夹弹药数量
subgroup = "ammo",
order = "c[railgun]",
stack_size = 200（堆叠数量
}
枪械：
X:\Factorio\data\base\prototypes\item\gun.lua
查找如下字符串
name = "railgun",
找到如下段落
{
type = "gun",
name = "railgun",
icon = "__base__/graphics/icons/railgun.png",
flags = {"goes-to-main-inventory"},
subgroup = "gun",
order = "c[railgun]",
attack_parameters =
{
ammo_category = "railgun",
cooldown = 2 * 60,（冷却时间
movement_slow_down_factor = 0.6,（攻击中移动速度倍率
projectile_creation_distance = 0.6,（弹药开始攻击的距离
range = 20,（最大攻击范围，与弹药距离不冲突，弹药中的为弹药长度与宽度，这里是鼠标指示位置在距离人物多远可以发射
sound =
{
{
filename = "__base__/sound/railgun.wav",
volume = 0.8（音量
}
}
},
stack_size = 4（堆叠数量
}
}
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