1 files changed, 46 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_float2.hh b/source/blender/blenlib/BLI_float2.hh
index e55a8de4633..1290eb6c65c 100644
--- a/source/blender/blenlib/BLI_float2.hh
+++ b/source/blender/blenlib/BLI_float2.hh
@@ -47,6 +47,11 @@ struct float2 {
     return &x;
   }
 
+  float length() const
+  {
+    return len_v2(*this);
+  }
+
   float2 &operator+=(const float2 &other)
   {
     x += other.x;
@@ -107,6 +112,47 @@ struct float2 {
     return stream;
   }
 
+  static float dot(const float2 &a, const float2 &b)
+  {
+    return a.x * b.x + a.y * b.y;
+  }
+
+  static float2 interpolate(const float2 &a, const float2 &b, float t)
+  {
+    return a * (1 - t) + b * t;
+  }
+
+  static float2 abs(const float2 &a)
+  {
+    return float2(fabsf(a.x), fabsf(a.y));
+  }
+
+  static float distance(const float2 &a, const float2 &b)
+  {
+    return (a - b).length();
+  }
+
+  static float distance_squared(const float2 &a, const float2 &b)
+  {
+    return float2::dot(a, b);
+  }
+
+  struct isect_result {
+    enum {
+      LINE_LINE_COLINEAR = -1,
+      LINE_LINE_NONE = 0,
+      LINE_LINE_EXACT = 1,
+      LINE_LINE_CROSS = 2,
+    } kind;
+    float lambda;
+    float mu;
+  };
+
+  static isect_result isect_seg_seg(const float2 &v1,
+                                    const float2 &v2,
+                                    const float2 &v3,
+                                    const float2 &v4);
+
   friend bool operator==(const float2 &a, const float2 &b)
   {
     return a.x == b.x && a.y == b.y;