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fix double frame request

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Vinzenz Schroeter 2024-04-30 23:45:00 +02:00 committed by RobbersDaughter
parent 061c893456
commit 0b10695e07
1 changed files with 40 additions and 24 deletions
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64
tank-frontend/src/ClientScreen.tsx
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@ -119,33 +119,49 @@ export default function ClientScreen({theme, player}: {
useEffect(() => {
if (lastMessage === null)
return;
if (canvasRef.current === null)
throw new Error('canvas null');
const canvas = canvasRef.current;
const drawContext = canvas.getContext('2d');
if (!drawContext)
throw new Error('could not get draw context');
let ignore = false;
const start = async () => {
const canvas = canvasRef.current;
if (canvas === null)
throw new Error('canvas null');
let pixels = new Uint8ClampedArray(lastMessage.data);
let additionalData: Uint8ClampedArray | null = null;
if (pixels.length > observerMessageSize) {
additionalData = pixels.slice(observerMessageSize);
pixels = pixels.slice(0, observerMessageSize);
}
const drawContext = canvas.getContext('2d');
if (!drawContext)
throw new Error('could not get draw context');
drawPixelsToCanvas({
context: drawContext,
width: canvas.width,
height: canvas.height,
pixels,
additional: additionalData,
background: normalizeColor(drawContext, hslToString(theme.background)),
foreground: normalizeColor(drawContext, hslToString(theme.primary)),
playerColor: normalizeColor(drawContext, hslToString(theme.secondary)),
otherTanksColor: normalizeColor(drawContext, hslToString(theme.tertiary))
});
sendMessage('');
let pixels = new Uint8ClampedArray(lastMessage.data);
let additionalData: Uint8ClampedArray | null = null;
if (pixels.length > observerMessageSize) {
additionalData = pixels.slice(observerMessageSize);
pixels = pixels.slice(0, observerMessageSize);
}
if (ignore)
return;
drawPixelsToCanvas({
context: drawContext,
width: canvas.width,
height: canvas.height,
pixels,
additional: additionalData,
background: normalizeColor(drawContext, hslToString(theme.background)),
foreground: normalizeColor(drawContext, hslToString(theme.primary)),
playerColor: normalizeColor(drawContext, hslToString(theme.secondary)),
otherTanksColor: normalizeColor(drawContext, hslToString(theme.tertiary))
});
if (ignore)
return;
sendMessage('');
};
start();
return () => {
ignore = true;
};
}, [lastMessage, canvasRef.current, theme]);
return <canvas ref={canvasRef} id="screen" width={pixelsPerRow} height={pixelsPerCol}/>;