From e440dd965c6b971e47fc0833030165c73ee0dce4 Mon Sep 17 00:00:00 2001 From: ElementalAlchemist Date: Wed, 13 Nov 2024 01:23:06 -0600 Subject: [PATCH] Constantize the canvas width in case we want it widened in the future --- thrimbletrimmer/driveclock/drive.js | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/thrimbletrimmer/driveclock/drive.js b/thrimbletrimmer/driveclock/drive.js index cb0425e..40b1db9 100644 --- a/thrimbletrimmer/driveclock/drive.js +++ b/thrimbletrimmer/driveclock/drive.js @@ -48,6 +48,9 @@ BUS_STOP_IMAGE.src = "db_stop.png"; const POINT_IMAGE = new Image(); POINT_IMAGE.src = "point.png"; +// This should match the HTML canvas width +const CANVAS_PIXEL_WIDTH = 1920; + function nextPhase(timeOfDay) { switch (timeOfDay) { case "day": @@ -105,7 +108,7 @@ async function drawRoad() { const context = canvas.getContext("2d"); // Clear the previous canvas before starting - context.clearRect(0, 0, 1920, 100); + context.clearRect(0, 0, CANVAS_PIXEL_WIDTH, 100); const currentTime = busData.clock_minutes; const distance = busData.odometer; @@ -113,7 +116,7 @@ async function drawRoad() { drawBackground(context, timeOfDay, 0, BUS_FRONT_OFFSET); - const maxWidth = 1920 - BUS_FRONT_OFFSET; + const maxWidth = CANVAS_PIXEL_WIDTH - BUS_FRONT_OFFSET; // The default scaling factor (1) is 20 seconds per pixel at max speed. // This gives us // - 3px per minute @@ -171,7 +174,7 @@ async function drawRoad() { distanceTracked += 720; } x = 0; - while (x < 1920) { + while (x < CANVAS_PIXEL_WIDTH) { const distanceTrackedOnRoute = distanceTracked % 360; let nextBusStopPosition = null; for (const busStopPosition of BUS_STOP_POSITIONS) {