Attempts at raycast

src/Player.zig

@@ -8,6 +8,7 @@ const math = @import("math.zig");
 const Blocks = @import("assets/Blocks.zig");
 const Chunks = @import("Chunks.zig");
 const Iterator2 = math.Iterator2;
+const Quaternion = math.Quaternion;
 const Vector2 = math.Vector2;
 const Vector3 = math.Vector3;
 const Vector2Int = math.Vector2Int;
@@ -200,6 +201,8 @@ pub const ground_acceleration_sv = sv(56.12);
 pub const air_acceleration_sv = sv(56.12);
 pub const air_speed_limit_sv = sv(0.5612);
 
+pub const raycast_length_sv = sv(5.0);
+
 pub fn init(position_sv: Vector3Int, pitch_rad: f32, yaw_rad: f32) Player {
     return .{
         .position_sv = position_sv,
@@ -229,6 +232,17 @@ pub fn onMouseMove(self: *Player, dx: f32, dy: f32) void {
 pub fn update(self: *Player, dt: f32, chunks: *const Chunks) void {
     defer self.resetAllButtons();
 
+    //const raycast_origin_sv = self.position_sv
+    //    .add(.init(0, 0, @intFromFloat(@round(c.sv_per_vx * camera_height_vx))));
+    //const raycast_ray_sv = Vector3
+    //    .init(0, raycast_length_sv, 0)
+    //    .rotate(.mulQuaternion(
+    //        .initRotationXY(self.yaw_rad),
+    //        .initRotationYZ(self.pitch_rad),
+    //    ))
+    //    .asVector3Int();
+    //const raycast_hit = chunks.raycast(raycast_origin_sv, raycast_ray_sv);
+
     // --- GATHER INPUTS -------------------------------------------------------
 
     const horizontal_input_vector_frac = blk: {