# namespaces.ludic — the engine's namespaces that are a name for a runtime function: `Http.get`
# is `http_get`, `Screen.fill_rectangle` is `fill_rect`. Each `alias` names the method, the labels
# a call may name its arguments by (in the target's parameter order), and the function it calls.
# Spliced into every program, and costs nothing until a method is called: the file that defines
# the target is spliced by its own use. A package declares its namespace the same way (L6).
namespace Screen {
  alias clear(color) = clear
  alias fill_rectangle(x, y, width, height, color) = fill_rect
  alias bar(x, y, width, height, value, max, color, back) = bar
  alias draw_rectangle(x, y, width, height, color) = frame_rect
  alias put_pixel(x, y, color) = put_px
  alias draw_text(x, y, text, color, scale) = text
  alias draw_number(x, y, value, color, scale) = text_int
  alias show() = present
  alias width() = screen_w
  alias height() = screen_h
  alias status(text) = status
  alias line(x1, y1, x2, y2, color) = line
  alias circle(x, y, radius, color) = circle
  alias fill_circle(x, y, radius, color) = fill_circle
  alias triangle(x1, y1, x2, y2, x3, y3, color) = triangle
  alias fill_triangle(x1, y1, x2, y2, x3, y3, color) = fill_triangle
  alias sprite(id, x, y) = draw_sprite
  alias sprite_scaled(id, x, y, scale) = draw_sprite_scaled
  alias oval(x, y, rx, ry, color) = oval
  alias camera(x, y) = camera
  alias clip(x, y, width, height) = clip
  alias clip_reset() = clip_reset
  alias blend_mode(mode) = blend_mode
  alias measure_text(text) = measure_text
  alias pixel(x, y) = get_px
}
namespace Sprite {
  alias sheet(path, cellw, cellh) = atlas_sheet
  alias cell(sheet, col, row) = atlas_cell
  alias cell_span(sheet, col, row, cols, rows) = atlas_cell_span
  alias strip(sheet, col, row, count, rows) = atlas_strip
  alias define(name, sheet, col, row) = atlas_define
  alias named(name) = atlas_named
  alias draw(id, x, y) = atlas_draw
  alias draw_scaled(id, x, y, scale) = atlas_draw_scaled
  alias draw_meter(x, y, value, max, per_icon, spacing, full, half, empty) = atlas_draw_meter
  alias width(id) = atlas_width
  alias height(id) = atlas_height
}
namespace Font {
  alias load(path) = font_load
}
namespace Ui {
  alias build() = ui_build
  alias open(id) = ui_open
  alias close() = ui_close
  alias tick(key) = ui_tick
  alias clicked(id) = ui_clicked
  alias set_text(id, text) = ui_set_text
  alias render() = ui_render
}
namespace File {
  alias open(path, mode) = file_open
  alias read(file, buffer, count) = file_read
  alias write(file, buffer, count) = file_write
  alias seek(file, offset, whence) = file_seek
  alias tell(file) = file_tell
  alias close(file) = file_close
}
namespace Fx {
  alias sparks(x, y, color, count) = fx_sparks
  alias number(x, y, value, color) = fx_number
  alias clear() = fx_clear
}
namespace Assets {
  alias font(name) = assets_font  # a .ttf loaded through the queue
  alias enqueue_dir(path) = assets_enqueue_dir  # every file of a directory, by base name
  alias image(path) = atlas_image
  alias load(path) = atlas_image  # alias
  alias get(name) = atlas_named  # alias of Sprite.named
  # #82 — incremental preload queue + progress for a loading scene.
  alias enqueue(name, path) = assets_enqueue
  alias pump(max) = assets_pump
  alias total() = assets_total
  alias loaded() = assets_loaded
  alias ready() = assets_ready
  alias progress() = assets_progress
}
namespace Camera {
  alias set(x, y) = camera
  alias follow(x, y, lerp) = camera_follow
  alias shake(amount) = camera_shake
  alias shake_for(amount, frames) = camera_shake_for  # a timed shake the engine decays
  alias zoom(scale) = camera_zoom  # #78 deterministic Q16.16 zoom
}
namespace Map {
  alias size(width, height) = map_size
  alias row(y, cells) = map_row
  alias tile(x, y) = tile
  alias get(x, y) = tile
  # the cell API: edit the grid in place, ask it what is where
  alias set(x, y, glyph) = map_set
  alias fill(glyph) = map_fill
  alias rect(x, y, width, height, glyph) = map_rect
  alias border(glyph) = map_border
  alias random_cell(glyph) = map_random_cell
  alias random_cell_far(glyph, from, min_tiles) = map_random_cell_far
  alias is_solid(x, y) = map_is_solid
  alias is_solid_at(x, y) = map_is_solid_at
  alias to_tile(pixel) = map_to_tile
  alias width() = map_width
  alias height() = map_height
}
namespace Random {
  alias range(low, high) = rng_range
  alias weighted(weights) = rng_weighted  # an index in proportion to its weight
  alias chance(percent) = rng_chance
  alias seed(value) = seed
  alias value() = rng_value
  alias int(max) = rng_int
  alias sign() = rng_sign
}
namespace Input {
  alias key() = key
  # action maps + deterministic record/replay (#7) — spliced runtime in
  # runtime/native/input.ludic, reached as ordinary @fn_input_* calls.
  alias bind(action, key) = input_bind
  alias rebind(action, old, new) = input_rebind
  alias poll() = input_poll
  alias down() = input_down
  alias pressed() = input_pressed
  alias record() = input_record
  alias replay() = input_replay
  # Input Manager (#83): default bindings + device-agnostic actions that read the
  # multi-key device layer (the frame loop now commits it automatically).
  alias action(action, key) = input_default
  alias bind_pad(action, button) = input_bind_pad
  alias active(action) = input_active
  alias just_pressed(action) = input_just_pressed
  alias just_released(action) = input_just_released
  # device layer (#50): multi-key held state, analog axes/vectors, mouse,
  # gamepads, touch — reached as ordinary @fn_input_* calls into input.ludic.
  alias key_down(key) = input_key_down
  alias key_pressed(key) = input_key_pressed
  alias key_released(key) = input_key_released
  alias key_label(key) = input_key_label
  alias text() = input_text  # what was TYPED, UTF-8
  alias press(key) = input_press
  alias release(key) = input_release
  alias axis(neg, pos) = input_axis
  alias axis_i(neg, pos) = input_axis_i  # #79 directional int (-1/0/1)
  alias move_i() = input_move_i  # WASD / arrows / left stick -> IVec2
  alias vector(left, right, up, down) = input_vector
  alias strength(action) = input_strength
  alias mouse_x() = input_mouse_x
  alias mouse_y() = input_mouse_y
  alias mouse_dx() = input_mouse_dx
  alias mouse_dy() = input_mouse_dy
  alias mouse_down(button) = input_mouse_down
  alias wheel() = input_wheel
  alias set_mouse(x, y, buttons, wheel) = input_set_mouse
  alias pad_connected(pad) = input_pad_connected
  alias pad_button(pad, button) = input_pad_button
  alias pad_axis(pad, axis) = input_pad_axis
  alias set_pad(pad, connected, buttons, lx, ly, rx, ry) = input_set_pad
  alias touch_count() = input_touch_count
  alias touch_x(index) = input_touch_x
  alias touch_y(index) = input_touch_y
  alias set_touch(index, x, y, active) = input_set_touch
  alias cursor_mode(mode) = input_cursor_mode  # #89 cursor capture
}
namespace Audio {
  alias load(path) = audio_load
  alias define(name, path) = audio_define
  alias named(name) = audio_named
  alias play_sound(id) = audio_play
  # Audio.play_at(id, gain:, pitch:, pan:) — one shot with its own gain, pitch and
  # stereo position. Audio.volume / Audio.pitch stay global (they are the options
  # screen); this is the per-voice one, and it is what distance attenuation is built on.
  alias play_at(id, gain, pitch, pan) = audio_play_at
  alias stop(id) = audio_stop
  alias stop_music() = audio_stop_music
  alias stop_all() = audio_stop_all
  alias volume(v) = audio_volume
  alias pitch(v) = audio_pitch
  alias is_playing(id) = audio_is_playing
}
namespace Http {
  alias get(url) = http_get
  alias post(url, body) = http_post
  alias request(method, url, body) = http_request
  alias open(method, url) = http_open
  alias set(handle, name, value) = http_set_header
  alias body(handle, body) = http_body
  alias body_bytes(handle, bytes, len) = http_body_n
  alias send(handle) = http_send_req
  alias poll(handle) = http_poll
  alias status(handle) = http_status_of
  alias ok(handle) = http_ok
  alias text(handle) = http_text
  alias body_len(handle) = http_body_len
  alias header(handle, name) = http_header_of
  alias free(handle) = http_close
  alias parse(bytes, len) = http_parse
  alias save_to(handle, path) = http_save_to
  alias received(handle) = http_received
  alias expected(handle) = http_expected
}
namespace Udp {
  alias open(port) = udp_open
  alias port(socket) = udp_port
  alias send(socket, ip, port, bytes, len) = udp_send
  alias recv(socket, bytes, cap) = udp_recv
  alias from_ip(socket) = udp_from_ip
  alias from_port(socket) = udp_from_port
  alias close(socket) = udp_close
  alias resolve(name) = udp_resolve
  alias local_ip() = udp_local_ip
  alias ip(text) = udp_ip
  alias ip_text(ip) = udp_ip_text
}
namespace Process {
  alias spawn(path, args) = process_spawn
  alias poll(handle) = process_poll
  alias kill(handle) = process_kill
  alias free(handle) = process_free
}
namespace World {
  alias get() = world_get
  alias set() = world_set
  alias has() = world_has
  alias count() = world_count
  alias size() = world_size
  alias spawn() = world_spawn
  alias despawn() = world_despawn  # #84 — despawn an entity by id (runs @OnDespawn + frees)
  alias save() = world_save
  alias load() = world_load
  alias prop_id() = world_prop_id
  alias field_id() = world_field_id
  alias model_id() = world_model_id
  alias kind() = world_kind
  alias register_prop() = world_register_prop
  alias attach() = world_attach_dyn
  alias detach() = world_detach_dyn
  alias query_next() = world_query_next
}
namespace Network {
  alias send() = net_send
  alias poll() = net_poll
  alias serialize() = serialize
  alias apply() = apply
  alias owner() = owner
  alias set_owner() = set_owner
  alias is_server() = is_server
  alias is_owner() = is_owner
  alias local_id() = local_id
}
namespace System {
  # System.* is the low-level file/process surface only. The environment slice
  # (arg/arg_count/env/exit) and the standard streams (stdout/stderr) were
  # duplicated by the canonical Os.* namespace and have been retired — see
  # Os.arg/arg_count/env/exit and Os.stdout_write/stderr_write (issue #40).
  alias run() = run
  alias read_char() = read_char
  alias file_open() = file_open
  alias file_read() = file_read
  alias file_write() = file_write
  alias file_seek() = file_seek
  alias file_tell() = file_tell
  alias file_close() = file_close
}
namespace Save {
  alias write() = save
  alias read() = load
}
namespace Regex {
  alias compile(pattern) = regex_compile
  alias valid(pattern) = regex_valid
  alias matches(text, pattern) = regex_matches
  alias test(text, re) = regex_test
  alias find(text, pattern) = regex_find
  alias exec(text, re) = regex_exec
  alias next(text, re, from) = regex_next
  alias replace(text, pattern, replacement) = regex_replace
  alias group(match, n) = regex_group
  alias group_count(match) = regex_group_count
  alias start(match, n) = regex_start
  alias end(match, n) = regex_end
  alias ok(match) = regex_ok
}
namespace BigInt {
  alias from(value) = bigint_from
  alias parse(text) = bigint_from_str
  alias add(a, b) = bigint_add
  alias sub(a, b) = bigint_sub
  alias mul(a, b) = bigint_mul
  alias neg(a) = bigint_neg
  alias pow(a, exp) = bigint_pow
  alias div(a, d) = bigint_div_int
  alias mod(a, d) = bigint_mod_int
  alias cmp(a, b) = bigint_cmp
  alias eq(a, b) = bigint_eq
  alias is_zero(a) = bigint_is_zero
  alias to_int(a) = bigint_to_int
  alias str(a) = bigint_str
}
namespace Decimal {
  alias from(value) = decimal_from
  alias parse(text) = decimal_from_str
  alias add(a, b) = decimal_add
  alias sub(a, b) = decimal_sub
  alias mul(a, b) = decimal_mul
  alias neg(a) = decimal_neg
  alias cmp(a, b) = decimal_cmp
  alias eq(a, b) = decimal_eq
  alias scale(d) = decimal_scale
  alias rescale(d, places) = decimal_rescale
  alias str(d) = decimal_str
}
namespace Dict {
  alias new() = dict_new
  alias set(d, key, value) = dict_set
  alias get(d, key) = dict_get
  alias get_or(d, key, fallback) = dict_get_or
  alias has(d, key) = dict_has
  alias remove(d, key) = dict_remove
  alias size(d) = dict_size
  alias clear(d) = dict_clear
  alias keys(d) = dict_keys
}
namespace Set {
  alias new() = set_new
  alias add(s, key) = set_add
  alias has(s, key) = set_has
  alias remove(s, key) = set_remove
  alias size(s) = set_size
  alias clear(s) = set_clear
  alias members(s) = set_members
}
namespace Job {
  alias defer() = job_defer
  alias run(kind, arg) = job_run
  alias fulfill(handle, value) = job_fulfill
  alias fail(handle, error) = job_fail
  alias cancel(handle) = job_cancel
  alias pump(budget) = job_pump
  alias done(handle) = job_done
  alias ok(handle) = job_ok
  alias failed(handle) = job_failed
  alias cancelled(handle) = job_cancelled
  alias result(handle) = job_result
  alias error(handle) = job_error
  alias pending() = job_pending
  alias free(handle) = job_free
  alias is_worker() = job_is_worker
}
namespace Promise {
  alias all(handles) = prom_all
  alias race(handles) = prom_race
  alias count_done(handles) = prom_count_done
  alias all_done(handles) = prom_all_done
}
namespace Sync {
  alias mutex() = sync_mutex
  alias lock(mutex) = sync_lock
  alias unlock(mutex) = sync_unlock
  alias try_lock(mutex) = sync_try_lock
  alias atomic() = sync_atomic
  alias get(atomic) = sync_get
  alias set(atomic, value) = sync_set
  alias add(atomic, delta) = sync_add
  alias cas(atomic, expect, next) = sync_cas
  alias channel() = sync_channel
  alias send(channel, value) = sync_send
  alias recv(channel) = sync_recv
  alias can_recv(channel) = sync_can_recv
  alias len(channel) = sync_len
  alias cpu_count() = sync_cpu_count
}
namespace Huge {
  alias from(value) = huge_from
  alias add(a, b) = huge_add
  alias sub(a, b) = huge_sub
  alias mul(a, b) = huge_mul
  alias neg(a) = huge_neg
  alias cmp(a, b) = huge_cmp
  alias sign(a) = huge_sign
  alias mantissa(a) = huge_mantissa
  alias exp(a) = huge_exp
  alias str(a) = huge_str
}
namespace Angle {
  alias from_degrees(d) = angle_from_degrees
  alias to_degrees(a) = angle_to_degrees
  alias wrap(a) = angle_wrap
  alias sin(a) = angle_sin
  alias cos(a) = angle_cos
  alias add(a, b) = angle_add
  alias diff(a, b) = angle_diff
  alias diff_degrees(a, b) = angle_diff_degrees  # signed, -180..180, ints
  alias lerp(a, b, t) = angle_lerp
}
namespace Percent {
  alias clamp(v) = percent_clamp
  alias of(num, den) = percent_of
  alias lerp(a, b, t) = percent_lerp
  alias apply(value, p) = percent_apply
}
namespace Grid {
  alias line(x0, y0, x1, y1) = grid_line
  alias blocked(x, y, wall) = grid_blocked
  alias line_of_sight(x0, y0, x1, y1, wall) = grid_line_of_sight
  alias flood(x, y, wall) = grid_flood
  alias a_star(x0, y0, x1, y1, wall) = path_a_star
}
namespace Light {
  alias ambient(color) = light_ambient
  alias point(x, y, radius, color, energy) = light_point
  alias spot(x, y, radius, color, energy, direction, spread) = light_spot
  alias occlude(x, y, width, height) = light_occlude
  alias clear_occluders() = light_clear_occluders
  alias falloff(exponent) = light_set_falloff
  alias soft(radius) = light_set_soft
  alias gel(color) = light_set_gel
  alias clear_gel() = light_clear_gel
  alias height(height) = light_set_height
  alias normal(x, y, width, height, nx, ny) = light_normal_rect
  alias clear_normals() = light_clear_normals
  alias time_of_day(t) = light_time_of_day
}
namespace Motion {
  alias to(entity, from, to, dur, ease) = motion_to
}
namespace Tween {
  alias to(from, to, dur, ease) = tween_to
  alias chain(handle, to, dur, ease) = tween_chain
  alias delay(handle, ticks) = tween_delay
  alias value(handle) = tween_value
  alias stop(handle) = tween_stop
  alias parallel(a, b) = tween_parallel
}
namespace Query {
  alias count(prop) = query_count
  alias first(prop) = query_first
  alias nearest(prop, pos, x_field, y_field, x, y) = query_nearest
  alias within(prop, pos, x, y, radius, x_field, y_field) = query_within
}
namespace Reflect {
  alias prop(name) = world_prop_id
  alias field(prop, name) = world_field_id
  alias prop_count() = world_prop_count
  alias prop_name(index) = world_prop_name
  alias field_count(prop) = world_field_count
  alias field_name(prop, index) = world_field_name
  alias field_type(prop, index) = world_field_type
  alias get(entity, prop, field) = world_get
  alias set(entity, prop, field, value) = world_set
  alias has(entity, prop) = world_has
  alias kind(entity) = world_kind
  alias model(name) = world_model_id
  # #44 — serialize an entity to a value tree and apply one back (reflect_io.ludic)
  alias serialize(entity) = reflect_serialize
  alias apply(entity, value) = reflect_apply
}
namespace Value {
  alias null() = value_null
  alias int(n) = value_int
  alias fixed(f) = value_fixed
  alias float(x) = value_float
  alias bool(b) = value_bool
  alias str(s) = value_str
  alias list() = value_list
  alias object() = value_object
  alias add(list, item) = value_add
  alias put(obj, key, item) = value_put
  alias get(obj, key) = value_get
  alias has(obj, key) = value_has
  alias at(list, index) = value_at
  alias key_at(obj, index) = value_key_at
  alias count(value) = value_count
  alias kind(value) = value_kind
  alias as_int(value) = value_as_int
  alias as_float(value) = value_as_float
  alias as_str(value) = value_as_str
  alias free(value) = value_free
  alias clear(value) = value_clear
  alias num_text(value) = value_num_text
  alias become(value, tag) = value_become
  alias be_int(value, n) = value_be_int
  alias be_float(value, x) = value_be_float
  alias be_str(value, s) = value_be_str
}
namespace Json {
  alias encode(value) = json_encode
  alias write_file(value, path) = json_write_file   # encode straight to a file, keeping nothing per call
  alias parse(text) = json_parse
  alias free(value) = json_free
  alias free_all(value) = json_free_all
}
namespace Xml {
  alias parse(text) = xml_parse
  alias tag(node) = xml_tag
  alias text(node) = xml_text
  alias attr(node, key) = xml_attr
  alias attr_int(node, key, dflt) = xml_attr_int
  alias has(node, key) = xml_has
  alias attr_count(node) = xml_attr_count
  alias child_count(node) = xml_child_count
  alias child(node, index) = xml_child
  alias find(node, tag) = xml_find
  alias count(node, tag) = xml_count
}
namespace Base64 {
  alias decode(src) = base64_decode
  alias encode(src) = base64_encode
}
namespace Tiled {
  alias read(path) = tiled_read
  alias read_tsx(path) = tiled_read_tsx
  alias load(path) = tiled_load
  alias gid(map, layer, x, y) = tmap_gid
  alias resolve(map, gid) = tmap_resolve
  alias width(map) = tmap_width
  alias height(map) = tmap_height
  alias layer_count(map) = tmap_layer_count
  alias layer_name(map, index) = tmap_layer_name
  alias draw(map, camx, camy) = tmap_draw
  alias draw_anim(map, camx, camy, frame) = tmap_draw_anim
  alias frame_gid(map, gid, frame) = tmap_frame_gid
  alias animated(map, gid) = tmap_is_animated
  alias project(map, layer) = tmap_project
  alias collide(map, layer) = tmap_collide
  alias collision_kind(map, gid) = tmap_collision_kind
  alias tree(map) = tmap_tree
  alias tile_prop(map, gid, name) = tmap_tile_prop
  alias tile_shapes(map, gid) = tmap_tile_has_shapes
  # P4 (#72): objects / properties / custom types / templates / opt-in spawn
  alias object_count(map, layer) = tmap_object_count
  alias object(map, layer, index) = tmap_object
  alias object_shape(object) = tiled_object_shape
  alias prop(container, name) = tiled_prop_str
  alias prop_int(container, name) = tiled_prop_int
  alias prop_type(container, name) = tiled_prop_type
  alias load_types(path) = tiled_load_types
  alias template(path) = tiled_read_template
  alias spawn(map, object, model) = tiled_spawn_object
  alias spawn_layer(map, layer, model) = tiled_spawn_layer
  # P5 (#73): orientation coords + image/group-layer accessors
  alias cell_x(map, x, y) = tmap_cell_sx
  alias cell_y(map, x, y) = tmap_cell_sy
  alias layer_kind(map, layer) = tmap_layer_kind
  alias layer_opacity(map, layer) = tmap_layer_opacity
  alias layer_tint(map, layer) = tmap_layer_tint
  alias layer_offsetx(map, layer) = tmap_layer_offsetx
  alias layer_offsety(map, layer) = tmap_layer_offsety
  # P6 (#74): .world stitching
  alias world(path) = tiled_read_world
  alias world_count(world) = tiled_world_count
  alias world_map(world, index) = tiled_world_map
}
namespace Time {
  alias now_us() = time_now_us  # a microsecond clock, for measuring - not the game's time
  alias sleep_us(us) = time_sleep_us
}
namespace Fs {
  alias read_bytes(path) = fs_read_bytes  # the whole file as a []byte, or null
  alias write_bytes(path, data, count) = fs_write_bytes
}