Created
April 18, 2020 15:58
-
-
Save amatiasq/0c5ff9d569d9217e7cc889a08b2b4472 to your computer and use it in GitHub Desktop.
Created with Fable REPL
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| html, body { | |
| margin: 0; | |
| padding: 0; | |
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| module BasicCanvas | |
| open Fable.Core | |
| open Fable.Core.JsInterop | |
| open Browser.Types | |
| open Browser | |
| let init() = | |
| let width = document.body.offsetWidth | |
| let height = document.body.offsetHeight | |
| let canvas = document.querySelector(".view") :?> HTMLCanvasElement | |
| canvas.width <- width; | |
| canvas.height <- height; | |
| let ctx = canvas.getContext_2d() | |
| // The (!^) operator checks and casts a value to an Erased Union type | |
| // See http://fable.io/docs/interacting.html#Erase-attribute | |
| ctx.fillStyle <- !^"rgb(0,0,0)" | |
| ctx.fillRect(0., 0., width, height) | |
| ctx.fillStyle <- !^"rgb(200,0,0, 0.5)" | |
| ctx.fillRect (10., 10., 55., 50.) | |
| ctx.fillStyle <- !^"rgba(0, 0, 200, 0.5)" | |
| ctx.fillRect (30., 30., 55., 50.) | |
| ctx.fillStyle <- !^"rgba(255, 255, 255, 0.5)" | |
| ctx.font <- "30px Arial" | |
| ctx.fillText ("Hack and Craft", 100., 100., 1000.) | |
| init() |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
| </head> | |
| <body> | |
| <canvas class="view" width="400" height="400"></canvas> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment