diff --git a/CHANGELOG.md b/CHANGELOG.md
index dbdf24d..81c5aeb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,10 @@
 # CHANGELOG
+## \[v0.0.1.2] consider the -1 area of triangles (2022/07/20)
+- WFC
+  - consider the -1 area of triangles to improve the precision of WFC plot
+- SMSDolphin
+  - add `*args` and `**kwargs` to `hook()`
+  - use sup-dolphin-memory-lib >= 0.1.2 to solve pid problem
 ## \[v0.0.1.1] improve performance by using PolyCollection (2022/07/19)
 - WFC
   - improve process speed of `make_geo_plot()` by using PolyCollection
diff --git a/setup.cfg b/setup.cfg
index 7fcdec7..9bbc11a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = supSMSTAS
-version = 0.0.1.1
+version = 0.0.1.2
 author = sup39
 author_email = sms@sup39.dev
 description = A tool to support Super Mario Sunshine Tool Assisted Speedrun/Superplay
@@ -23,7 +23,7 @@ packages = find_namespace:
 include_package_data = True
 python_requires = >=3.8
 install_requires =
-  sup-dolphin-memory-lib >= 0.1.1
+  sup-dolphin-memory-lib >= 0.1.2
   matplotlib >= 3.5
   PyQt5 >= 5.15
 
diff --git a/src/supSMSTAS/UI.py b/src/supSMSTAS/UI.py
index 8aa3115..5a80348 100644
--- a/src/supSMSTAS/UI.py
+++ b/src/supSMSTAS/UI.py
@@ -69,9 +69,9 @@ class SMSDolphin(Dolphin):
   def __init__(self):
     super().__init__()
     self.hooked = False
-  def hook(self):
+  def hook(self, *args, **kwargs):
     self.hooked = False
-    if Dolphin.hook(self) is None:
+    if super().hook(*args, **kwargs) is None:
       return 'SMS is not running'
     # found pid -> check game
     verID = self.memory.buf[:8].tobytes()
diff --git a/src/supSMSTAS/WFC.py b/src/supSMSTAS/WFC.py
index 16f900b..948ccdf 100644
--- a/src/supSMSTAS/WFC.py
+++ b/src/supSMSTAS/WFC.py
@@ -30,14 +30,23 @@ makeTriPrism = lambda tri0, tri1: Polyhedron([
   (3, 4), (4, 5), (5, 3),
 ])
 
+def extendTriangle(tri, axis):
+  ans = np.array(tri, 'd')
+  tri = tri[:, axis]
+  for i in [-1, 0, 1]:
+    l1, l2 = tri[i]-tri[i+1], tri[i]-tri[i-1]
+    ans[i, axis] += (l1+l2)/np.abs(np.cross(l1, l2).item())
+  return ans
+
 def makeGround(tri, hG=0):
-  vertsLow = tri.verts-(0,108,0)
+  vertsE = extendTriangle(tri.verts, [0, 2])
+  vertsLow = vertsE-(0,108,0)
   ySlice = tri.minY-30
   v = array(vertsLow)
   vertsLow[:,1] = np.clip(vertsLow[:,1], a_min=ySlice, a_max=None)
   verts = [
     *vertsLow,
-    *(tri.verts+(0,hG,0)),
+    *(vertsE+(0,hG,0)),
   ]
   edges = [
     # top face
@@ -70,12 +79,14 @@ def makeGround(tri, hG=0):
   poly = Polyhedron(verts, edges)
   return poly
 def makeRoof(tri, hR=82):
-  poly = makeTriPrism(tri.verts-(0,hR,0), tri.verts-(0,160,0))
+  verts = extendTriangle(tri.verts, [0, 2])
+  poly = makeTriPrism(verts-(0,hR,0), verts-(0,160,0))
   return poly
 def makeWall(tri, rW=50, dy=30):
-  verts = tri.verts - (0, dy, 0)
   n = tri.n
-  off = (np.abs(rW/n[0]),0,0) if np.abs(n[0])>0.707 else (0,0,np.abs(rW/n[2]))
+  isXWall = np.abs(n[0])>0.707
+  verts = extendTriangle(tri.verts, [2 if isXWall else 0, 1]) - (0, dy, 0)
+  off = (np.abs(rW/n[0]),0,0) if isXWall else (0,0,np.abs(rW/n[2]))
   poly = makeTriPrism(verts-off, verts+off)
   return poly