46 lines
1.1 KiB
Forth
46 lines
1.1 KiB
Forth
#! /usr/bin/env ueforth
|
|
|
|
\ Copyright 2022 Bradley D. Nelson
|
|
\
|
|
\ Licensed under the Apache License, Version 2.0 (the "License");
|
|
\ you may not use this file except in compliance with the License.
|
|
\ You may obtain a copy of the License at
|
|
\
|
|
\ http://www.apache.org/licenses/LICENSE-2.0
|
|
\
|
|
\ Unless required by applicable law or agreed to in writing, software
|
|
\ distributed under the License is distributed on an "AS IS" BASIS,
|
|
\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
\ See the License for the specific language governing permissions and
|
|
\ limitations under the License.
|
|
|
|
graphics
|
|
640 480 window
|
|
|
|
: run
|
|
begin
|
|
wait
|
|
0 to color 0 0 width height box
|
|
g{
|
|
vertical-flip
|
|
3200 3200 viewport
|
|
$ffcccc to color
|
|
1600 1600 2900 heart
|
|
g{
|
|
-5 -5 translate
|
|
$ffffff to color
|
|
32 for
|
|
i 100 * 0 10 3200 box
|
|
0 i 100 * 3200 10 box
|
|
next
|
|
$ff0000 to color
|
|
1600 0 10 3200 box
|
|
0 2400 3200 10 box
|
|
}g
|
|
}g
|
|
flip
|
|
FINISHED event = until
|
|
bye
|
|
;
|
|
run
|