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Code Issues Releases Wiki Activity

reduce param

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This commit is contained in:
Justin Lin 2019-09-28 19:54:20 +08:00
parent ca40a5c120
commit ebf6dc5bca
1 changed files with 8 additions and 15 deletions
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23
src/turtle/t2d.scad
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@ -8,7 +8,8 @@
*
**/
function _t2d_turtle(point, angle) = [point, angle];
function _t2d_turtle(point, angle) =
[is_undef(point) ? [0, 0] : point, is_undef(angle) ? 0 : angle];
function _t2d_set_point(t, point) = [point, _t2d_get_angle(t)];
@ -35,36 +36,27 @@ function _t2d_get_angle(t) = t[1];
function _t2d_two_args_command(cmd, t, arg) =
is_undef(arg) ? _t2d_one_arg_command(cmd, t) :
cmd == "point" ? _t2d_set_point(t, arg) :
cmd == "x" ? _t2d_set_x(t, arg) :
cmd == "y" ? _t2d_set_y(t, arg) :
cmd == "angle" ? _t2d_set_angle(t, arg) :
cmd == "forward" ? _t2d_forward(t, arg) :
cmd == "turn" ? _t2d_turn(t, arg) : assert(false, "unknown command");
function _t2d_one_arg_command(cmd, t) =
cmd == "x" ? _t2d_get_x(t) :
cmd == "y" ? _t2d_get_y(t) :
cmd == "angle" ? _t2d_get_angle(t) :
cmd == "point" ? _t2d_get_pt(t) : assert(false, "unknown command");
function _t2d_cmdline(cmd, t, arg) =
_t2d_two_args_command(cmd, t, arg);
function _t2d_set(t, point, angle, x, y) =
function _t2d_set(t, point, angle) =
!is_undef(point) ? _t2d_set_point(t, point) :
!is_undef(angle) ? _t2d_set_angle(t, angle) :
!is_undef(x) ? _t2d_set_x(t, x) :
!is_undef(y) ? _t2d_set_y(t, y) :
assert(false, "no target to set");
function _t2d_cmd(t, cmd, point, angle, x, y, leng) =
cmd == "set" ? _t2d_set(t, point, angle, x, y) :
function _t2d_cmd(t, cmd, point, angle, leng) =
cmd == "forward" ? _t2d_forward(t, leng) :
cmd == "turn" ? _t2d_turn(t, angle) :
cmd == "point" ? _t2d_get_pt(t) :
cmd == "angle" ? _t2d_get_angle(t) :
cmd == "x" ? _t2d_get_x(t) :
cmd == "y" ? _t2d_get_y(t) : assert(false, "unknown command");
cmd == "angle" ? _t2d_get_angle(t) : assert(false, "unknown command");
function _t2d_cmds(t, cmds, i = 0) =
i == len(cmds) ? t :
@ -74,7 +66,8 @@ function _t2d_cmds(t, cmds, i = 0) =
)
_t2d_cmds(_t2d_cmdline(cmd, t, arg), cmds, i + 1);
function t2d(t, cmd, point, angle, x, y, leng) =
function t2d(t, cmd, point, angle, leng) =
is_undef(t) ? _t2d_turtle(point, angle) :
is_string(cmd) ? _t2d_cmd(t, cmd, point, angle, x, y, leng) :
is_undef(cmd) ? _t2d_set(t, point, angle) :
is_string(cmd) ? _t2d_cmd(t, cmd, point, angle, leng) :
_t2d_cmds(t, cmd) ;