代码来源于“易宁”大佬的分享，仅供学习，不要直接复制粘贴。
原帖链接：http://bbs.3dmgame.com/thread-3859071-1-1.html
1
2一七二.溜溜球（用陷阱种溜溜球，连续打击多个目标，打完自动回到手中）
3
4 用MT管理器打开游戏目录/assets/scripts/prefabs/trap.lua文件，在inst:AddComponent("inspectable")的下一行插入以下内容：
5
6local colours=
7{
8 {198/255,43/255,43/255},
9 {79/255,153/255,68/255},
10 {35/255,105/255,235/255},
11 {233/255,208/255,69/255},
12 {109/255,50/255,163/255},
13 {222/255,126/255,39/255},
14}
15local function OnDeploy (inst, pt)
16 local ball = SpawnPrefab("trap")
17 ball.Transform:SetPosition(pt.x, pt.y, pt.z)
18 ball.AnimState:SetBank("bulb")
19 ball.AnimState:SetBuild("bulb")
20 ball.AnimState:PlayAnimation("idle")
21 ball.AnimState:SetBloomEffectHandle("shaders/anim.ksh")
22 ball:ClearStateGraph()
23 RemovePhysicsColliders(ball)
24 ball.components.inventoryitem:ChangeImageName("lightbulb")
25 ball.colour_idx = math.random(#colours)
26 ball.AnimState:SetMultColour(colours[ball.colour_idx][1],colours[ball.colour_idx][2],colours[ball.colour_idx][3],1)
27 ball:RemoveComponent("finiteuses")
28 ball:RemoveComponent("trap")
29 ball:RemoveComponent("deployable")
30 ball:RemoveTag("trap")
31 ball:AddComponent("weapon")
32 ball.components.weapon:SetDamage(30)
33 ball.components.weapon:SetRange(20, 25)
34 ball:AddComponent("equippable")
35 ball.components.equippable.equipslot = EQUIPSLOTS.HANDS
36 ball.components.equippable:SetOnEquip(function(ball)
37 ball.SoundEmitter:PlaySound("dontstarve/wilson/equip_item_gold")
38 end )
39 ball:AddComponent("projectile")
40 ball.components.projectile:SetSpeed(25)
41 ball.components.projectile:SetOnHitFn(function(ball, owner, target)
42 GetPlayer().SoundEmitter:PlaySound("dontstarve/wilson/equip_item_gold")
43 local target0 = FindEntity(owner, 25, function(guy)
44 if guy.components.combat and guy.components.health and not guy.components.health:IsDead() and not guy:HasTag("player") then
45 return guy.components.combat.target == owner or owner.components.combat.target == guy or guy:HasTag("monster")
46 end
47 end )
48 if target0 then
49 ball.components.projectile:Throw(owner, target0)
50 else
51 owner.components.inventory:Equip(ball)
52 end
53 end )
54 ball.components.projectile:SetOnMissFn(function(ball, owner)
55 owner.components.inventory:Equip(ball)
56 end )
57 ball:ListenForEvent("onthrown", function(ball)
58 local pt = ball:GetPosition()
59 ball.Transform:SetPosition(pt.x, 2, pt.z)
60 ball.SoundEmitter:PlaySound("dontstarve/wilson/boomerang_throw")
61 end )
62 ball:AddComponent("workable")
63 ball.components.workable:SetWorkAction(ACTIONS.HAMMER)
64 ball.components.workable:SetWorkLeft(3)
65 ball.components.workable:SetOnFinishCallback(function(ball)
66 SpawnPrefab("ground_chunks_breaking").Transform:SetPosition(ball.Transform:GetWorldPosition())
67 ball:Remove()
68 end )
69 ball:AddTag("projectile")
70 ball:AddTag("balls")
71 inst:Remove()
72end
73 inst:AddComponent("deployable")
74 inst.components.deployable.ondeploy = OnDeploy
75local function onsave(inst, data)
76 if inst:HasTag("balls") then
77 data.balls = true
78 end
79 data.colour_idx = inst.colour_idx
80end
81local function onload(inst, data)
82 if data and data.balls then
83 inst.AnimState:SetBank("bulb")
84 inst.AnimState:SetBuild("bulb")
85 inst.AnimState:PlayAnimation("idle")
86 inst.AnimState:SetBloomEffectHandle("shaders/anim.ksh")
87 inst:ClearStateGraph()
88 RemovePhysicsColliders(inst)
89 inst.components.inventoryitem:ChangeImageName("lightbulb")
90 inst:RemoveComponent("finiteuses")
91 inst:RemoveComponent("trap")
92 inst:RemoveComponent("deployable")
93 inst:RemoveTag("trap")
94 inst:AddComponent("weapon")
95 inst.components.weapon:SetDamage(30)
96 inst.components.weapon:SetRange(20, 25)
97 inst:AddComponent("equippable")
98 inst.components.equippable.equipslot = EQUIPSLOTS.HANDS
99 inst.components.equippable:SetOnEquip(function(inst)
100 inst.SoundEmitter:PlaySound("dontstarve/wilson/equip_item_gold")
101 end )
102 inst:AddComponent("projectile")
103 inst.components.projectile:SetSpeed(25)
104 inst.components.projectile:SetOnHitFn(function(inst, owner, target)
105 GetPlayer().SoundEmitter:PlaySound("dontstarve/wilson/equip_item_gold")
106 local target0 = FindEntity(owner, 25, function(guy)
107 if guy.components.combat and guy.components.health and not guy.components.health:IsDead() and not guy:HasTag("player") then
108 return guy.components.combat.target == owner or owner.components.combat.target == guy or guy:HasTag("monster")
109 end
110 end )
111 if target0 then
112 inst.components.projectile:Throw(owner, target0)
113 else
114 owner.components.inventory:Equip(inst)
115 end
116 end )
117 inst.components.projectile:SetOnMissFn(function(inst, owner)
118 owner.components.inventory:Equip(inst)
119 end )
120 inst:ListenForEvent("onthrown", function(inst)
121 local pt = inst:GetPosition()
122 inst.Transform:SetPosition(pt.x, 2, pt.z)
123 inst.SoundEmitter:PlaySound("dontstarve/wilson/boomerang_throw")
124 end )
125 inst:AddComponent("workable")
126 inst.components.workable:SetWorkAction(ACTIONS.HAMMER)
127 inst.components.workable:SetWorkLeft(3)
128 inst.components.workable:SetOnFinishCallback(function(inst)
129 SpawnPrefab("ground_chunks_breaking").Transform:SetPosition(inst.Transform:GetWorldPosition())
130 inst:Remove()
131 end )
132 inst:AddTag("projectile")
133 inst:AddTag("balls")
134 end
135 if data and data.colour_idx then
136 inst.colour_idx = math.min(#colours, data.colour_idx)
137 inst.AnimState:SetMultColour(colours[inst.colour_idx][1],colours[inst.colour_idx][2],colours[inst.colour_idx][3],1)
138 end
139end
140 inst.OnSave = onsave
141 inst.OnLoad = onload
142
143 即可用陷阱种溜溜球（颜色随机），装备后对敌人按鼠标左键，可以扔出并连续打击附近所有敌人，消灭敌人后自动回到手中，完美代替回旋镖。不想要溜溜球时，用锤子砸掉即可。陷阱在生存选项（画着绳套）下，用2个树枝、6个草制造