feat: incardinal directions (nw, ne, sw, se). probably janky in ways I haven't yet discovered.

2 files changed, 45 insertions, 20 deletions

diff --git a/internal/world/room.go b/internal/world/room.go
index 21e1277..15f847f 100644
--- a/internal/world/room.go
+++ b/internal/world/room.go
@@ -11,34 +11,59 @@ import (
 type ExitDir string
 
 const (
-	North ExitDir = "north"
-	South ExitDir = "south"
-	East  ExitDir = "east"
-	West  ExitDir = "west"
-	Up    ExitDir = "up"
-	Down  ExitDir = "down"
+	North     ExitDir = "north"
+	South     ExitDir = "south"
+	East      ExitDir = "east"
+	West      ExitDir = "west"
+	Northeast ExitDir = "northeast"
+	Northwest ExitDir = "northwest"
+	Southeast ExitDir = "southeast"
+	Southwest ExitDir = "southwest"
+	Up        ExitDir = "up"
+	Down      ExitDir = "down"
 )
 
 var ExitAliases = map[string]ExitDir{
-	"n": North,
-	"s": South,
-	"e": East,
-	"w": West,
-	"u": Up,
-	"d": Down,
+	"n":  North,
+	"s":  South,
+	"e":  East,
+	"w":  West,
+	"ne": Northeast,
+	"nw": Northwest,
+	"se": Southeast,
+	"sw": Southwest,
+	"u":  Up,
+	"d":  Down,
 }
 
 var OppositeExit = map[ExitDir]ExitDir{
-	North: South,
-	South: North,
-	East:  West,
-	West:  East,
-	Up:    Down,
-	Down:  Up,
+	North:     South,
+	South:     North,
+	East:      West,
+	West:      East,
+	Northeast: Southwest,
+	Northwest: Southeast,
+	Southeast: Northwest,
+	Southwest: Northeast,
+	Up:        Down,
+	Down:      Up,
 }
 
 var ExitOrder = []ExitDir{
-	North, South, East, West, Up, Down,
+	North, South, East, West,
+	Northeast, Northwest, Southeast, Southwest,
+	Up, Down,
+}
+
+var DirectionDeltas = map[ExitDir][2]int{
+	North:     {0, -1},
+	South:     {0, 1},
+	East:      {1, 0},
+	West:      {-1, 0},
+	Northeast: {1, -1},
+	Northwest: {-1, -1},
+	Southeast: {1, 1},
+	Southwest: {-1, 1},
 }
 
 type SpawnDef struct {
diff --git a/internal/world/world.go b/internal/world/world.go
index 0c992ad..3dfa99b 100644
--- a/internal/world/world.go
+++ b/internal/world/world.go
@@ -68,7 +68,7 @@ func (w *World) ResolveExit(input string) ExitDir {
 	}
 	canon := ExitDir(strings.ToLower(input))
 	switch canon {
-	case North, South, East, West, Up, Down:
+	case North, South, East, West, Northeast, Northwest, Southeast, Southwest, Up, Down:
 		return canon
 	}
 	return ""