附加包教程：33.方块（五）

Cat_Anchor · 发表于 2023-3-26 07:26:19

本帖最后由 Cat_Anchor 于 2023-3-31 22:11 编辑

坩埚
稀有度	常见
创造分类	建筑
材料	金属
合适挖掘工具	镐
硬度	5
爆炸抗性	0
亮度	0
窒息生物	否
红石导体	否
光照透明	0.7
可被火破坏	否
可被熔岩生成火	否
可再生	是
最大堆叠	64
命名空间ID	crucible

前言

所有我知道的关于附加包理论的知识几乎已经讲完了，但还有一些遗漏。不管怎样，我们从这一期开始进入教程后期。这一期的题目叫“方块（五）”，因为我要在这一期放出一些制作方块的例子。

目标

今天我闲来无事，想要给我的附加包加一点新东西。思来想去，我觉得添加一口锅还有点意思。我要添加一口能盛水、熔岩、牛奶的锅，每个液体都应该可以有不同高度，而且肯定得反复使用，不能只用一次就歇菜。
除此之外，我添加这个锅和原版的炼药锅的区别是，这个锅可以做饭和混合黑曜石。相当于不用钻石镐就获得黑曜石的一种途径。
最后，我打算叫它“坩埚”。

分析与解决

好的，那么既然是坩埚，第一件事就是给它确定一个命名空间ID。我把坩埚丢进了翻译器里，结果是“crucible”。校对了一下意思，发现没有很大的歧义，于是在本例子中，我就把它的ID定为“supplementary:crucible”吧！
于是我在行为包根目录/blocks/下创建crucible.json。打开它，首先把基本的方块格式写出来。
然后我注意到需要定义两个方块属性，一个用来管液体的类型，一个用来管液体的高度。然后要给两个属性确定类型。液体高度我设置了7层，0层代表没有，6层代表满，而第7层是预留给以后使用的。至于另一个液体类型，当然是设置成字符串，这让代码易懂了很多。虽然也可以设置成数字，然后记住0代表什么1代表什么；但这样写出的代码，时间一久，自己都忘了这些代码到底怎么运作的，更不要提优化或者是修复漏洞了。
至于题目说的“做饭功能”，我暂且用做甜菜根汤代替，因为这个最简单。当然也可以做蘑菇煲和兔肉汤，但那些涉及到添加原料时的一个hasitem选择器问题，这就容易闹出版本问题和一堆历史遗留问题。总之，液体类型就设置成none、water、lava、milk和beetroot吧。
然后需要一个坩埚模型，随便做一个就好了。记得在做液体层数时给对应的立方体命名“layerX”，X代表到底是哪一层。以上用于part_visibility组件，实际上就是用于显示液体高度。我放一个我做的模型示例吧。

{
"format_version": "1.12.0",
"minecraft:geometry": [
{
"description": {
"identifier": "geometry.crucible",
"texture_width": 112,
"texture_height": 112,
"visible_bounds_width": 2,
"visible_bounds_height": 2.5,
"visible_bounds_offset": [0, 0.75, 0]
},
"bones": [
{
"name": "root",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-8, 1, -8], "size": [16, 1, 16], "uv": [0, 0]},
{"origin": [-8, 0, -8], "size": [5, 1, 5], "uv": [72, 20]},
{"origin": [-8, 2, 6], "size": [16, 18, 2], "uv": [56, 81]},
{"origin": [3, 0, -8], "size": [5, 1, 5], "uv": [72, 14]},
{"origin": [-8, 0, 3], "size": [5, 1, 5], "uv": [16, 65]},
{"origin": [3, 0, 3], "size": [5, 1, 5], "uv": [16, 59]},
{"origin": [-8, 2, -8], "size": [16, 18, 2], "uv": [56, 61]},
{"origin": [-8, 2, -6], "size": [2, 18, 12], "uv": [28, 61]},
{"origin": [6, 2, -6], "size": [2, 18, 12], "uv": [0, 59]}
]
},
{
"name": "layer1",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-6, 2, -6], "size": [12, 2.57, 12], "uv": [48, 0]}
]
}, //第1层，叫layer1，以下同理
{
"name": "layer6",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-6, 14.85, -6], "size": [12, 2.57, 12], "uv": [36, 47]}
]
}, //不要在意这个顺序
{
"name": "layer3",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-6, 7.14, -6], "size": [12, 2.57, 12], "uv": [0, 17]}
]
},
{
"name": "layer5",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-6, 12.28, -6], "size": [12, 2.57, 12], "uv": [36, 33]}
]
},
{
"name": "layer4",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-6, 9.71, -6], "size": [12, 2.57, 12], "uv": [0, 31]}
]
},
{
"name": "layer2",
"pivot": [0, 0, 0],
"cubes": [
{"origin": [-6, 4.57, -6], "size": [12, 2.57, 12], "uv": [36, 19]}
]
},
{
"name": "layer7",
"pivot": [0, 16, 0],
"cubes": [
{"origin": [-6, 17.42, -6], "size": [12, 2.57, 12], "uv": [0, 45]}
]
}
]
}
]
}

复制代码

方块代码如下。

{
"format_version": "1.18.0",
"minecraft:block": {
"description": {
"identifier": "supplementary:crucible", //方块的命名空间ID，简称方块ID。
"properties": {
"supplementary:material_type": [ //液体类型
"none", //没有液体
"water", //水
"lava", //熔岩
"milk", //牛奶
"beetroot" //甜菜根汤
],
"supplementary:height": [ //液体高度
0,
1,
2,
3,
4,
5,
6,
7
]
}
},
"components": {
"tag:metal": {}, //暂时认为锅是金属的，添加一个金属标签
"minecraft:on_interact": {
"event": "fill_material" //交互时触发事件，事件名是fill_material，下文会讲
},
"minecraft:geometry": "geometry.crucible", //一口锅总得有个模型吧
"minecraft:material_instances": {
"*": {
"texture": "crucible_empty", //有了模型，就可以用minecraft:material_instances组件直接定义纹理短名了。
"render_method": "blend" //允许半透明，同时有防止它上面刷怪等效果
}
},
"minecraft:destroy_time": 5, //设定破坏时间
"minecraft:block_light_filter": 0.7,
"minecraft:part_visibility": { //这个组件用于在对应的层数显示对应的高度。在1.19.80及以后，它被合并到了minecraft:geometry的bone_visibility中。
"rules": {
"layer0": "q.block_property('supplementary:height')==0",
"layer1": "q.block_property('supplementary:height')==1",
"layer2": "q.block_property('supplementary:height')==2",
"layer3": "q.block_property('supplementary:height')==3",
"layer4": "q.block_property('supplementary:height')==4",
"layer5": "q.block_property('supplementary:height')==5",
"layer6": "q.block_property('supplementary:height')==6",
"layer7": "q.block_property('supplementary:height')==7"
}
}
}, ...
}
}

复制代码

然后，要让我们拿着水桶时点击坩埚，坩埚里得出现液体才行。所以在组件那里有minecraft:on_interact触发器组件，触发fill_material事件。这个事件会运用sequence来确定顺序，还有condition判定到底玩家手持的是什么。这个事件的代码如下。

... "fill_material": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='water_bucket'", //如果玩家手里拿着水桶，那么...
"set_block_property": { //设置方块属性。没错，可以像下面这样一次设置两个。
"supplementary:material_type": "'water'", //液体类型设置为水。
"supplementary:height": 6 //高度设置为满（6层高）
},
"run_command": { //运行命令
"command": [
"clear @p water_bucket 0 1",
"give @p bucket"
] //清除水桶，给予空桶。记得限定只清除一个水桶。
}
},
{ //这部分用于熔岩
"condition": "q.get_equipped_item_name=='lava_bucket'",
"set_block_property": {
"supplementary:material_type": "'lava'",
"supplementary:height": 6
},
"run_command": {
"command": [
"clear @p lava_bucket 0 1",
"give @p bucket"
]
}
},
{ //这部分用于牛奶
"condition": "q.get_equipped_item_name=='milk_bucket'",
"set_block_property": {
"supplementary:material_type": "'milk'",
"supplementary:height": 6
},
"run_command": {
"command": [
"clear @p milk_bucket 0 1",
"give @p bucket"
]
}
}
]
} ...

复制代码

到现在为止，一切都还好办。然后要定义方块排列（Permutations）。我也不知道为啥Permutations叫排列，可能是用翻译器翻译的吧。感觉好怪啊。

...
"permutations": [
{
"condition": "q.block_property('supplementary:material_type')=='water'", //如果液体材料是水，那么用以下组件替换原来的组件。
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_water",
"render_method": "blend"
}
}, //定义一个水的纹理。
"minecraft:on_interact": {
"event": "empty_water"
} //玩家点击时触发事件empty_water。详情见下文。
}
},
{ //这个管熔岩
"condition": "q.block_property('supplementary:material_type')=='lava'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_lava",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_lava"
}
}
},
{ //牛奶
"condition": "q.block_property('supplementary:material_type')=='milk'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_milk",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_milk"
}
}
},
{ //甜菜根汤
"condition": "q.block_property('supplementary:material_type')=='beetroot'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_beetroot",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_beetroot"
}
}
}
]
...

复制代码

我们已经完成了一大半，接下来就是定义如何清除坩埚里的液体了。刚才有empty_water等事件，以下是empty_water的代码。注：千万不要在清除液体时仅仅把液体高度设置为0，那样，这个坩埚还保持着水的液体类型，那这锅看起来是空了，实际上真就歇菜了，不能倒熔岩等其他液体了。这是因为锅还保持着水的液体类型，这个排列下，点击方块会触发empty_water事件而不是fill_material事件。
清除熔岩和牛奶比较简单，只需要把高度设为0，类型设为none，然后用命令把桶换成熔岩桶或牛奶桶就好了。但清除水时，有很多操作：加甜菜根可以变成甜菜汤，加熔岩可以变成黑曜石，用水瓶可以舀3瓶，用桶可以直接舀一锅。下面我放了我写的empty_water事件的示例。太长了，我折叠一下。

"empty_water": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='beetroot'&&q.block_property('supplementary:height')==6", //如果锅里的水满了，而且玩家手持甜菜，那么...
"set_block_property": { //把类型换成甜菜汤
"supplementary:material_type": "'beetroot'",
"supplementary:height": 6
},
"run_command": {
"command": "clear @p beetroot 0 3" //清除3个甜菜根
}
}, //以上用于“加入甜菜根变成甜菜汤”功能
{
"condition": "q.get_equipped_item_name=='bucket'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p bucket 0 1",
"give @p water_bucket"
]
}
}, //这个对象用于用桶舀水
{
"condition": "q.get_equipped_item_name=='glass_bottle'&&q.block_property('supplementary:height')>=3",
"set_block_property": {
"supplementary:height": "q.block_property('supplementary:height')-2"
},
"run_command": {
"command": [
"clear @p glass_bottle 0 1",
"give @p potion"
]
}
},
{
"condition": "q.get_equipped_item_name=='glass_bottle'&&q.block_property('supplementary:height')<=2",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p glass_bottle 0 1",
"give @p potion"
]
}
}, //以上两个对象用于用水瓶舀水。因为可以舀3次，所以前两次减少液体层数，最后一次直接把液体类型设置为none，清空液体层数。如果不这么做会导致锅用一次就歇菜。
{
"condition": "q.get_equipped_item_name=='lava_bucket'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p lava_bucket 0 1",
"give @p bucket",
"give @p obsidian"
]
}
} //用于混合黑曜石
]
}

复制代码

一番操作猛如虎，经过好几次T&E之后，我终于做好了坩埚。以下代码就是我的crucible.json里写的内容，供大家参考。

{
"format_version": "1.18.0",
"minecraft:block": {
"description": {
"identifier": "supplementary:crucible",
"properties": {
"supplementary:material_type": [
"none",
"water",
"lava",
"milk",
"beetroot"
],
"supplementary:height": [
0,
1,
2,
3,
4,
5,
6,
7
]
}
},
"components": {
"tag:metal": {},
"minecraft:on_interact": {
"event": "fill_material"
},
"minecraft:geometry": "geometry.crucible",
"minecraft:material_instances": {
"*": {
"texture": "crucible_empty",
"render_method": "blend"
}
},
"minecraft:destroy_time": 5,
"minecraft:block_light_filter": 0.7,
"minecraft:part_visibility": {
"rules": {
"layer0": "q.block_property('supplementary:height')==0",
"layer1": "q.block_property('supplementary:height')==1",
"layer2": "q.block_property('supplementary:height')==2",
"layer3": "q.block_property('supplementary:height')==3",
"layer4": "q.block_property('supplementary:height')==4",
"layer5": "q.block_property('supplementary:height')==5",
"layer6": "q.block_property('supplementary:height')==6",
"layer7": "q.block_property('supplementary:height')==7"
}
}
},
"events": {
"empty_water": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='beetroot'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'beetroot'",
"supplementary:height": 6
},
"run_command": {
"command": "clear @p beetroot 0 3"
}
},
{
"condition": "q.get_equipped_item_name=='bucket'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p bucket 0 1",
"give @p water_bucket"
]
}
},
{
"condition": "q.get_equipped_item_name=='glass_bottle'&&q.block_property('supplementary:height')>=3",
"set_block_property": {
"supplementary:height": "q.block_property('supplementary:height')-2"
},
"run_command": {
"command": [
"clear @p glass_bottle 0 1",
"give @p potion"
]
}
},
{
"condition": "q.get_equipped_item_name=='glass_bottle'&&q.block_property('supplementary:height')<=2",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p glass_bottle 0 1",
"give @p potion"
]
}
},
{
"condition": "q.get_equipped_item_name=='lava_bucket'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p lava_bucket 0 1",
"give @p bucket",
"give @p obsidian"
]
}
}
]
},
"empty_lava": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='bucket'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p bucket 0 1",
"give @p lava_bucket"
]
}
},
{
"condition": "q.get_equipped_item_name=='water_bucket'&&q.block_property('supplementary:height')==6",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p water_bucket 0 1",
"give @p bucket",
"give @p obsidian"
]
}
}
]
},
"empty_milk": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='bucket'&&q.block_property('supplementary:height')>5",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p bucket 0 1",
"give @p milk_bucket"
]
}
}
]
},
"empty_beetroot": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='bowl'&&q.block_property('supplementary:height')>=3",
"set_block_property": {
"supplementary:height": "q.block_property('supplementary:height')-2"
},
"run_command": {
"command": [
"clear @p bowl 0 1",
"give @p beetroot_soup"
]
}
},
{
"condition": "q.get_equipped_item_name=='bowl'&&q.block_property('supplementary:height')<=2",
"set_block_property": {
"supplementary:material_type": "'none'",
"supplementary:height": 0
},
"run_command": {
"command": [
"clear @p bowl 0 1",
"give @p beetroot_soup"
]
}
}
]
},
"fill_material": {
"sequence": [
{
"condition": "q.get_equipped_item_name=='water_bucket'",
"set_block_property": {
"supplementary:material_type": "'water'",
"supplementary:height": 6
},
"run_command": {
"command": [
"clear @p water_bucket 0 1",
"give @p bucket"
]
}
},
{
"condition": "q.get_equipped_item_name=='lava_bucket'",
"set_block_property": {
"supplementary:material_type": "'lava'",
"supplementary:height": 6
},
"run_command": {
"command": [
"clear @p lava_bucket 0 1",
"give @p bucket"
]
}
},
{
"condition": "q.get_equipped_item_name=='milk_bucket'",
"set_block_property": {
"supplementary:material_type": "'milk'",
"supplementary:height": 6
},
"run_command": {
"command": [
"clear @p milk_bucket 0 1",
"give @p bucket"
]
}
}
]
}
},
"permutations": [
{
"condition": "q.block_property('supplementary:material_type')=='water'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_water",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_water"
}
}
},
{
"condition": "q.block_property('supplementary:material_type')=='lava'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_lava",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_lava"
}
}
},
{
"condition": "q.block_property('supplementary:material_type')=='milk'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_milk",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_milk"
}
}
},
{
"condition": "q.block_property('supplementary:material_type')=='beetroot'",
"components": {
"minecraft:material_instances": {
"*": {
"texture": "crucible_beetroot",
"render_method": "blend"
}
},
"minecraft:on_interact": {
"event": "empty_beetroot"
}
}
}
]
}
}

复制代码

模型文件在教程开头已经给出了，我会把我制作的方块纹理打包放在下方，有需要的可以参考。

坩埚纹理.zip (14.83 KB, 下载次数: 2)

总结

这一期，我们制作了一个坩埚方块，可以盛装液体，也可以制作黑曜石和甜菜根汤。下期我们继续示范方块制作。
同时，这也是到目前为止我写的最长的一篇教程，大小达到了25KB，这个大小可能还会被超越。

第三十二期第三十三期第三十四期

Cat_Anchor · 发表于 2023-3-26 10:38:40

嗷呜不生电发表于 2023-3-26 07:34
一开始那个图片是啥

就是坩埚在游戏内的样子（去除了背景）

承挨 · 发表于 2023-3-26 07:41:35

苦力怕论坛感谢有你！

嗷呜不生电 · 发表于 2023-3-26 07:34:19

一开始那个图片是啥

[BE教程] 附加包教程：33.方块（五）

评分

QQ群

访问手机版