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add events to graphics

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MeexReay 2025-03-22 17:20:17 +03:00
parent 71202d1f91
commit e8a1bcb8ad
1 changed files with 32 additions and 1 deletions
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33
sys/graphics.js
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@ -2,11 +2,42 @@ var graphics_canvas = null
var graphics_context = null
function enableGraphics() {
function enableGraphics(options={}) {
graphics_canvas = document.createElement("canvas")
graphics_canvas.id = "graphics"
graphics_canvas.width = window.innerWidth.toString()
graphics_canvas.height = window.innerHeight.toString()
if ("onmousemove" in options) {
graphics_canvas.onmousemove = e => {
options.onmousemove(e.x, e.y)
}
}
if ("onmousedown" in options) {
graphics_canvas.onmousedown = e => {
options.onmousedown(e.button)
}
}
if ("onmouseup" in options) {
graphics_canvas.onmouseup = e => {
options.onmouseup(e.button)
}
}
if ("onkeydown" in options) {
graphics_canvas.onkeydown = e => {
options.onkeydown(e.key)
}
}
if ("onkeyup" in options) {
graphics_canvas.onkeyup = e => {
options.onkeyup(e.key)
}
}
graphics_context = graphics_canvas.getContext("2d")
graphics_context.fillStyle = "black";
graphics_context.fillRect(0, 0, graphics_canvas.width, graphics_canvas.height);