From 6b8a96f358de168aeb107c6cb42e595ba19cd01f Mon Sep 17 00:00:00 2001
From: Eltrac <hi@guhub.cn>
Date: Sat, 22 Feb 2025 11:00:30 +0800
Subject: refactor: reuse isBlocked() function

---
 utils/utils.lua | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'utils')

diff --git a/utils/utils.lua b/utils/utils.lua
index d207049..3a2dd05 100644
--- a/utils/utils.lua
+++ b/utils/utils.lua
@@ -2,6 +2,37 @@ utils = {}
 
 -- deal with obstacles
 
+function utils.isBlocked(body, x, y, dir, axis, dv)
+    local function meetWall()
+        local borders = G.currentRoom.borders
+        local r, axisVal = body.r, (axis == "x" and x or y) + dv
+
+        local hitRoomBorder = false
+        if dir==Direction.RIGHT then
+            hitRoomBorder = axisVal+r >= borders[Direction.RIGHT]
+        elseif dir==Direction.LEFT then
+            hitRoomBorder = axisVal-r <= borders[Direction.LEFT]
+        elseif dir==Direction.TOP then
+            hitRoomBorder = axisVal-r <= borders[Direction.TOP]
+        elseif dir==Direction.BOTTOM then
+            hitRoomBorder = axisVal+r >= borders[Direction.BOTTOM]
+        end
+
+        return hitRoomBorder
+    end
+
+    local function meetObstacle()
+        for _, obstacle in ipairs(G.currentRoom.obstacles) do
+            if obstacle:isMet(body, x, y, dv, dir) then
+                return true
+            end
+        end
+        return false
+    end
+
+    return meetWall() or meetObstacle()
+end
+
 -- detect if object hit obstacles with no specific direction
 function utils.hitObstacle(x, y, r)
     local borders = G.currentRoom.borders
-- 
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