Removed the MiniObstacle nonsense.

player.go

@@ -1,7 +1,6 @@
 package client
 
 import (
-	"fmt"
 	"math"
 	"math/rand"
 
@@ -141,31 +140,3 @@ func (p *SimplePlayer) probe(destination vector.Point2d) bool {
 	}
 	return true
 }
-
-// MiniObstacle is a convenient way to encode/decode between the [4]int -> server.Obstacle
-type MiniObstacle [4]int
-
-// id is used to calculate a key for use in maps
-func (mo *MiniObstacle) Id() string {
-	return fmt.Sprintf(
-		"%x%x%x%x",
-		mo[0],
-		mo[1],
-		mo[2],
-		mo[3],
-	)
-}
-
-func (mo MiniObstacle) String() string {
-	return mo.Id()
-}
-
-// ToObstacle is where the conversion magic happens
-func (mo *MiniObstacle) ToObstacle() server.Obstacle {
-	return server.Obstacle{
-		Bounds: vector.AABB2d{
-			A: vector.Point2d{X: float32(mo[0]), Y: float32(mo[1])},
-			B: vector.Point2d{X: float32(mo[2]), Y: float32(mo[3])},
-		},
-	}
-}