diff --git a/src/display.rs b/src/display.rs
index 503c549..827d45b 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -75,3 +75,54 @@ impl From<DisplayInfo> for Display {
         }
     }
 }
+
+impl Display {
+    pub fn is_overlap(&self, target: Display) -> bool {
+        let self_right = self.x + self.width;
+        let self_bottom = self.y + self.height;
+        let target_right = target.x + target.width;
+        let target_bottom = target.y + target.height;
+
+        self.x < target_right
+            && self_right > target.x
+            && self.y < target_bottom
+            && self_bottom > target.y
+    }
+
+    pub fn is_touch(&self, target: Display) -> Option<(i32, i32, ZoneDirection)> {
+        let self_right = self.x + self.width;
+        let self_bottom = self.y + self.height;
+        let target_right = target.x + target.width;
+        let target_bottom = target.y + target.height;
+
+        let horizontal_touch = (self_right == target.x || self.x == target_right)
+            && (self.y < target_bottom && self_bottom > target.y);
+
+        let vertical_touch = (self_bottom == target.y || self.y == target_bottom)
+            && (self.x < target_right && self_right > target.x);
+
+        if horizontal_touch {
+            return Some((
+                i32::max(self.y, target.y),
+                i32::min(self_bottom, target_bottom),
+                if self_right == target.x {
+                    ZoneDirection::HorizontalRight
+                } else {
+                    ZoneDirection::HorizontalLeft
+                },
+            ));
+        } else if vertical_touch {
+            return Some((
+                i32::max(self.x, target.x),
+                i32::min(self_right, target_right),
+                if self_bottom == target.y {
+                    ZoneDirection::VerticalDown
+                } else {
+                    ZoneDirection::VerticalUp
+                },
+            ));
+        } else {
+            None
+        }
+    }
+}
diff --git a/src/server.rs b/src/server.rs
index be2127a..6bd62bc 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -35,12 +35,13 @@ impl Server {
             return Err(Error::new(NotFound, "[ERR] system display not found"));
         }
 
+        // TODO: set warpzones: WIP
+        create_warpzones(disp.clone(), disp.clone(), true);
+
         let system = disp.iter().map(|x| x.id).collect();
         let current = disp.iter().find(|x| x.is_primary).unwrap_or(&disp[0]).id;
         let displays = Arc::new(RwLock::new(disp.into_iter().map(|x| (x.id, x)).collect()));
 
-        // TODO: set warpzones
-
         Ok(Server {
             clients: Arc::new(RwLock::new(HashMap::new())),
             displays,
diff --git a/src/utils.rs b/src/utils.rs
index c3c8fce..f678c9a 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,6 +1,10 @@
+use std::io::{Error, ErrorKind::*};
+
 use display_info::DisplayInfo;
 use serde::{Deserialize, Serialize};
 
+use crate::display::*;
+
 #[derive(Serialize, Deserialize, Debug)]
 pub enum HandshakeStatus {
     HandshakeOk,
@@ -16,6 +20,31 @@ pub fn print_displays() {
     }
 }
 
+pub fn create_warpzones(a: Vec<Display>, b: Vec<Display>, is_list_same: bool) -> Result<Vec<Display>, Error> {
+    for (i, disp) in a.iter().enumerate() {
+        for (j, target) in b.iter().enumerate() {
+            if is_list_same && i >= j {
+                continue;
+            }
+
+            if disp.is_overlap(target.clone()) {
+                return Err(Error::new(InvalidInput, "[ERR] two displays are overlapping"));
+            }
+
+            if let Some((start, end, direction)) = disp.is_touch(target.clone()) {
+                disp.warpzones.push(WarpZone {
+                    start,
+                    end,
+                    direction,
+                    to: 0
+                })
+            }
+        }
+    }
+
+    Ok(Vec::new())
+}
+
 #[macro_export]
 macro_rules! config_dir {
     () => {{