From b18cd06a01980470dfd01516ed1367716e22ba3a Mon Sep 17 00:00:00 2001
From: Vova <3emaster@gmail.com>
Date: Thu, 13 Jul 2023 07:49:49 +0300
Subject: [PATCH] draw bounding box

---
 Assets/Scenes/Test.unity    |  4 +-
 Assets/Scripts/Character.cs | 81 ++++++++++++++++++++++++++++++-------
 2 files changed, 68 insertions(+), 17 deletions(-)

diff --git a/Assets/Scenes/Test.unity b/Assets/Scenes/Test.unity
index b18cd83..a0ca944 100644
--- a/Assets/Scenes/Test.unity
+++ b/Assets/Scenes/Test.unity
@@ -1197,8 +1197,8 @@ CapsuleCollider2D:
   m_IsTrigger: 0
   m_UsedByEffector: 0
   m_UsedByComposite: 0
-  m_Offset: {x: -0.17, y: 0.03}
-  m_Size: {x: 0.6, y: 0.89}
+  m_Offset: {x: 0, y: 0.03}
+  m_Size: {x: 0.7, y: 0.89}
   m_Direction: 0
 --- !u!4 &331482265 stripped
 Transform:
diff --git a/Assets/Scripts/Character.cs b/Assets/Scripts/Character.cs
index 5ed3dc5..b14d49a 100644
--- a/Assets/Scripts/Character.cs
+++ b/Assets/Scripts/Character.cs
@@ -137,19 +137,17 @@ public abstract class Character : MonoBehaviour
 
         //var cell = _tileMap.WorldToCell(bounds + direction);
         //Vector2 cell2d = new Vector2(cell.x + 0.5f, cell.y + 0.3f);
-        Vector2 cellSize = new Vector2(0.9f,0.8f);
+        Vector2 cellSize = _cellSize;
 
-        var playerBounds = _capsuleCollider.bounds.min;
-        playerBounds += new Vector3(0.01f, 0.01f);
+        var playerBounds = _capsuleCollider.bounds.center;
 
-
-        DrawBounds(playerBounds, cellSize, Color.cyan);
+        //DrawBounds(playerBounds, cellSize, Color.cyan);
 
         playerBounds = playerBounds + direction;
 
-        var raycastHit = Physics2D.BoxCast(playerBounds, cellSize, 0f, Vector3.forward, .01f, _mapLayer);
+        var raycastHit = BoxCast(playerBounds, cellSize, 0f, Vector3.forward, .01f, _mapLayer);
+
 
-        
 
         MapElementType returnValue;
         Color color = Color.red;
@@ -183,18 +181,18 @@ public abstract class Character : MonoBehaviour
         {
             returnValue = MapElementType.Empty;
         }
-        DrawBounds(playerBounds, cellSize, color);
+        //  DrawBounds(playerBounds, cellSize, color);
 
         return returnValue;
     }
 
-    private static void DrawBounds(Vector2 cell2d, Vector2 cellSize, Color color)
-    {
-        Debug.DrawLine(cell2d, cell2d + new Vector2(cellSize.x, 0), color);
-        Debug.DrawLine(cell2d + new Vector2(cellSize.x, 0), cell2d + new Vector2(cellSize.x, cellSize.y), color);
-        Debug.DrawLine(cell2d, cell2d + new Vector2(0, cellSize.y), color);
-        Debug.DrawLine(cell2d + new Vector2(0, cellSize.y), cell2d + new Vector2(cellSize.x, cellSize.y), color);
-    }
+    //private static void DrawBounds(Vector2 cell2d, Vector2 cellSize, Color color)
+    //{
+    //    Debug.DrawLine(cell2d, cell2d + new Vector2(cellSize.x, 0), color);
+    //    Debug.DrawLine(cell2d + new Vector2(cellSize.x, 0), cell2d + new Vector2(cellSize.x, cellSize.y), color);
+    //    Debug.DrawLine(cell2d, cell2d + new Vector2(0, cellSize.y), color);
+    //    Debug.DrawLine(cell2d + new Vector2(0, cellSize.y), cell2d + new Vector2(cellSize.x, cellSize.y), color);
+    //}
 
     protected abstract void OnDeath();
     protected abstract void SetWalkingAnimation(bool isWalking);
@@ -211,5 +209,58 @@ public abstract class Character : MonoBehaviour
         _facingRight = !_facingRight;
     }
 
+    static public RaycastHit2D BoxCast(Vector2 origen, Vector2 size, float angle, Vector2 direction, float distance, int mask)
+    {
+        RaycastHit2D hit = Physics2D.BoxCast(origen, size, angle, direction, distance, mask);
 
+        //Setting up the points to draw the cast
+        Vector2 p1, p2, p3, p4, p5, p6, p7, p8;
+        float w = size.x * 0.5f;
+        float h = size.y * 0.5f;
+        p1 = new Vector2(-w, h);
+        p2 = new Vector2(w, h);
+        p3 = new Vector2(w, -h);
+        p4 = new Vector2(-w, -h);
+
+        Quaternion q = Quaternion.AngleAxis(angle, new Vector3(0, 0, 1));
+        p1 = q * p1;
+        p2 = q * p2;
+        p3 = q * p3;
+        p4 = q * p4;
+
+        p1 += origen;
+        p2 += origen;
+        p3 += origen;
+        p4 += origen;
+
+        Vector2 realDistance = direction.normalized * distance;
+        p5 = p1 + realDistance;
+        p6 = p2 + realDistance;
+        p7 = p3 + realDistance;
+        p8 = p4 + realDistance;
+
+
+        //Drawing the cast
+        Color castColor = hit ? Color.red : Color.green;
+        Debug.DrawLine(p1, p2, castColor);
+        Debug.DrawLine(p2, p3, castColor);
+        Debug.DrawLine(p3, p4, castColor);
+        Debug.DrawLine(p4, p1, castColor);
+
+        Debug.DrawLine(p5, p6, castColor);
+        Debug.DrawLine(p6, p7, castColor);
+        Debug.DrawLine(p7, p8, castColor);
+        Debug.DrawLine(p8, p5, castColor);
+
+        Debug.DrawLine(p1, p5, Color.grey);
+        Debug.DrawLine(p2, p6, Color.grey);
+        Debug.DrawLine(p3, p7, Color.grey);
+        Debug.DrawLine(p4, p8, Color.grey);
+        if (hit)
+        {
+            Debug.DrawLine(hit.point, hit.point + hit.normal.normalized * 0.2f, Color.yellow);
+        }
+
+        return hit;
+    }
 }