BLOK DISTROJ

src/Player.zig

@@ -8,6 +8,7 @@ const vm = @import("vecmath");
 
 const Blocks = @import("assets/Blocks.zig");
 const Chunks = @import("Chunks.zig");
+const Game = @import("Game.zig");
 const Iterator2 = math.Iterator2;
 
 const AxisState = enum {
@@ -175,6 +176,7 @@ mouse_sensitivity: f32 = 0.0003,
 vertical_fov_deg: f32 = 80,
 
 movement_state: MovementState,
+maybe_raycast_hit: ?Chunks.RaycastHit = null,
 
 pub const camera_height_vx = 1.62;
 
@@ -225,19 +227,38 @@ pub fn onMouseMove(self: *Player, dx: f32, dy: f32) void {
     self.yaw_turns = @mod(self.yaw_turns - dx * self.mouse_sensitivity, 1);
 }
 
+pub fn onMouseDown(self: *Player, button: glfw.MouseButton, game: *Game) void {
+    if (self.maybe_raycast_hit) |raycast_hit| {
+        switch (button) {
+            .left => {
+                game.chunks.destroyVoxelAt(
+                    raycast_hit.voxel,
+                    game.engine,
+                    &game.blocks,
+                    game.allocator,
+                ) catch |err| {
+                    std.log.err("Error while destroying voxel {f}: {}", .{ raycast_hit.voxel, err });
+                };
+            },
+            else => {},
+        }
+    }
+}
+
 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 = vm.Vector3
-    //    .init(0, raycast_length_sv, 0)
-    //    .rotate(.mulQuaternion(
-    //        .initRotation(.XY, self.yaw_turns),
-    //        .initRotation(.YZ, self.pitch_turns),
-    //    ))
-    //    .asVector3Int();
-    //const raycast_hit = chunks.raycast(raycast_origin_sv, raycast_ray_sv);
+    const raycast_origin_sv = self.position_sv
+        .add(.init(0, 0, @intFromFloat(@round(c.sv_per_vx * camera_height_vx))));
+    const raycast_ray_sv = vm.Vector3
+        .init(0, raycast_length_sv, 0)
+        .rotate(.mulQuaternion(
+            .initRotation(.XY, self.yaw_turns),
+            .initRotation(.YZ, self.pitch_turns),
+        ))
+        .round()
+        .asInt();
+    self.maybe_raycast_hit = chunks.raycast(raycast_origin_sv, raycast_ray_sv);
 
     // --- GATHER INPUTS -------------------------------------------------------