Specialise layers to be either lists of vertices or squares

1 files changed, 13 insertions, 18 deletions

diff --git a/src/level.zig b/src/level.zig
index f277b19..31d86df 100644
--- a/src/level.zig
+++ b/src/level.zig
@@ -17,35 +17,30 @@
 
 const std = @import("std");
 
-pub const Layer = struct {
+pub const Polygon = union(enum) {
     pub const MAX_VERTS = 16;
 
-    height : f32 = 0,
-    vertical_texture : u8 = 0,
-    vertical_texture_scale : f32 = 4,
-    horizontal_texture : u8 = 0,
-    // What happened to this error? Is it comptime?
+    square: void,
     vertices: std.BoundedArray([2]f32, MAX_VERTS),
 };
 
+pub const Layer = struct {
+    height: f32 = 0,
+    vertical_texture: u8 = 0,
+    vertical_texture_scale: f32 = 4,
+    horizontal_texture: u8 = 0,
+
+    polygon: Polygon,
+};
+
 pub const Cell = struct {
     pub const MAX_LAYERS = 16;
-    // floor_height: f32 = 0,
-    // ceiling_height: f32 = DEFAULT_HEIGHT,
-    // draw_down: bool = false,
-    // lower_texture: u8 = 0,
-    // upper_texture: u8 = 0,
-    // floor_texture: u8 = 0,
-    // ceiling_texture: u8 = 2,
 
-    lower_layers : std.BoundedArray(Layer, MAX_LAYERS),
+    lower_layers: std.BoundedArray(Layer, MAX_LAYERS),
 
-    // I'm not sure how i feel about reaching into the implementation of
-    // BoundedArray like this. Surely there should be an ``.empty'' or something
-    // default?
     fn empty() !Cell {
         const lower_layers = try std.BoundedArray(Layer, MAX_LAYERS).init(0);
-        return Cell{ . lower_layers = lower_layers };
+        return Cell{ .lower_layers = lower_layers };
     }
 
     pub const DEFAULT_HEIGHT: f32 = 4;