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parent 12738a142c
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--- a/docs/mconline/10-addon教程/第07章：自定义生物/课程14.让水鸭活动起来.md
+++ b/docs/mconline/10-addon教程/第07章：自定义生物/课程14.让水鸭活动起来.md
@@ -0,0 +1,144 @@
+---
+front: https://mc.res.netease.com/pc/zt/20201109161633/mc-dev/assets/img/14_1.199826f4.jpg
+hard: 进阶
+time: 25分钟
+---
+
+# 让水鸭活动起来
+
+
+
+#### 作者：境界
+
+
+
+在材质包完成了水鸭的一切工作后，开发者回到行为包上。在这里，我们可以使用原版的鸡行为去掉一部分多余的内容，增加一些新的行为，来模拟出水鸭的行为状态。
+
+```
+{
+  "format_version": "1.16.0",
+  "minecraft:entity": {
+    "description": {
+      "identifier": "design:green_head_duck",
+      "is_spawnable": true,
+      "is_summonable": true,
+      "is_experimental": false,
+      "runtime_identifier": "design:green_head_duck"
+    }
+    },
+    "component_groups": {
+    },
+}
+    "components": {
+      "minecraft:type_family": {
+        "family": [ "duck", "mob" ]
+      },
+      "minecraft:breathable": {
+        "total_supply": 15,
+        "suffocate_time": 0
+      },
+      "minecraft:collision_box": {
+        "width": 0.6,
+        "height": 0.8
+      },
+      "minecraft:nameable": {
+      },
+      "minecraft:health": {
+        "value": 4,
+        "max": 4
+      },
+      "minecraft:hurt_on_condition": {
+        "damage_conditions": [
+          {
+            "filters": { "test": "in_lava", "subject": "self", "operator": "==", "value": true },
+            "cause": "lava",
+            "damage_per_tick": 4
+          }
+        ]
+      },
+      "minecraft:movement": {
+        "value": 0.25
+      },
+      "minecraft:damage_sensor": {
+        "triggers": {
+          "cause": "fall",
+          "deals_damage": false
+        }
+      },
+      "minecraft:behavior.rise_to_liquid_level": {
+        "priority": 0,
+        "liquid_y_offset": -0.5,
+        "rise_delta": 0.01,
+        "sink_delta": 0.01
+      },
+      "minecraft:leashable": {
+        "soft_distance": 4.0,
+        "hard_distance": 6.0,
+        "max_distance": 10.0
+      },
+      "minecraft:balloonable": {
+        "mass": 0.5
+      },
+      "minecraft:navigation.walk": {
+        "can_path_over_water": true,
+        "can_sink": false,
+        "avoid_damage_blocks": true
+      },
+      "minecraft:movement.basic": {
+      },
+      "minecraft:jump.static": {
+      },
+      "minecraft:can_climb": {
+      },
+      "minecraft:despawn": {
+        "despawn_from_distance": {}
+      },
+      "minecraft:behavior.panic": {
+        "priority": 1,
+        "speed_multiplier": 1.5
+      },
+      "minecraft:behavior.tempt": {
+        "priority": 4,
+        "speed_multiplier": 1.0,
+        "items": [
+          "wheat_seeds",
+          "beetroot_seeds",
+          "melon_seeds",
+          "pumpkin_seeds"
+        ]
+      },
+      "minecraft:behavior.random_stroll": {
+        "priority": 6,
+        "speed_multiplier": 1.0
+      },
+      "minecraft:behavior.look_at_player": {
+        "priority": 7,
+        "look_distance": 6.0,
+        "probability": 0.02
+      },
+      "minecraft:behavior.random_look_around": {
+        "priority": 8
+      },
+      "minecraft:physics": {
+      },
+      "minecraft:pushable": {
+        "is_pushable": true,
+        "is_pushable_by_piston": true
+      }
+    },
+
+    "events": {
+    }
+  }
+}
+```
+
+
+
+1）将format_version格式设置为最新的1.16.0，水鸭作为一个带有生物蛋的生物，我们将is_summonable（可用指令生成的）设置为true（真），is_spawnable（可用生物蛋）设置为true（真），is_experimental（是否是实验玩法打开才能看到的生物）设置为false（否）。同时将runtime_identifier指向自己。
+
+2）行为组内的组合都清空，同时在原本鸡的行为上，加入”minecraft:behavior.rise_to_liquid_level“行为，这是一个来自炽足兽的新行为。可以让生物在水面上下起伏，就像水上的鸭子一样。
+
+3）其中行为内部属性里，priority设置为0，即最高级优先使用的行为。liquid_y_offset设置为-0.5。rise_delta是上升增量，sink_delta是下降增量，来模拟鸭子的上下起伏。这里都设置为0.01。这样一个可爱的绿头鸭就做好了。
+
+![](./images/14_1.jpg)