Initial commit

world/level.go

@@ -0,0 +1,42 @@
+package world
+
+import "github.com/pnx/go-raytracer/math"
+
+const TileSize = 64
+
+type Special byte
+
+const (
+	Empty       Special = 0
+	PlayerStart Special = 'S'
+)
+
+type Level struct {
+	W, H     int
+	Grid     []byte
+	Specials []Special
+}
+
+func (m Level) Wall(x, y int) bool {
+	return m.Grid[(y*m.W)+x] > 0
+}
+
+func (m Level) Cell(x, y int) byte {
+	return m.Grid[(y*m.W)+x]
+}
+
+func (m Level) PosToCell(x, y float64) (int, int) {
+	return int(x) / TileSize, int(y) / TileSize
+}
+
+func (m Level) PlayerStart() math.Vec2[int] {
+	for k, v := range m.Specials {
+		if v == PlayerStart {
+			return math.Vec2[int]{
+				X: k % m.W,
+				Y: k / m.W,
+			}
+		}
+	}
+	return math.Vec2[int]{X: -1, Y: -1}
+}