增加一个大数圆规检测实现上下左右的实体数量的宏函数

subprojects/datapack-function-library/data/dfl/function/lib/get_side_entities_count.mcfunction

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+## 此文件用于监测任意实体上、下、左、右、前、后侧实体计数
+# 原理：半径足够大的圆可以近似看做一条直线
+# 传参：as 实体、side宏（0=左,1=右,2=上,3=下,4=前,5=后）
+
+scoreboard objectives add dfl_scoreboard dummy
+scoreboard objectives add entities_side dummy
+$scoreboard players set #lib_get_side_entities_side dfl_scoreboard $(side)
+
+## 校验
+# 显示校验失败
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches -2147483647..-1 \
+  run tellraw @s {\
+    "text":"执行失败!side宏应为0(左)/1(右)/2(上)/3(下)/4(前)/5(后)!",\
+    "color":"red"\
+  }
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 4..2147483647 \
+  run tellraw @s {\
+    "text":"执行失败!side宏应为0(左)/1(右)/2(上)/3(下)/4(前)/5(后)!",\
+    "color":"red"\
+  }
+# 校验成功与执行
+#左
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 0 \
+  rotated as @s \
+  positioned ^1024 ^ ^ \
+  store result score @s entities_side \
+  if entity @e[distance=0..1024]
+#右
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 1 \
+  rotated as @s \
+  positioned ^1024 ^ ^ \
+  store result score @s entities_side \
+  if entity @e[distance=0..1024]
+#上
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 2 \
+  rotated as @s \
+  positioned ^ ^1024 ^ \
+  store result score @s entities_side \
+  if entity @e[distance=0..1024]
+#下
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 3 \
+  rotated as @s \
+  positioned ^ ^-1024 ^ \
+  store result score @s entities_side \
+  if entity @e[distance=0..1024]
+#前
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 4 \
+  rotated as @s \
+  positioned ^ ^ ^1024 \
+  store result score @s entities_side \
+  if entity @e[distance=0..1024]
+
+#后
+execute \
+  if score #lib_get_side_entities_side dfl_scoreboard matches 5 \
+  rotated as @s \
+  positioned ^ ^ ^-1024 \
+  store result score @s entities_side \
+  if entity @e[distance=0..1024]