Map Generation

Introduction

This guide will cover creating tile-based maps for our guides, such as the below examples:

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Method 1: Creating using web app

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Method 2: Creating via coding

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Step 1

1.1 Run the first code section by clicking the first play button

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Step 2

2.1. Scroll down to the second code section and edit the variables between the two lines of #########​

Notes:

‎ ‎ ‎ ‎a. Check Referenced guide unavailable in this snapshot first for already created maps and variables sets to save you time

‎ ‎ ‎ ‎b. You can find map chunks by visiting https://mejrs.github.io/

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎⬩ Turn on the grid layer by hovering over the icon in the bottom-right

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎⬩ If you struggle to find a specific area the RS Wiki has a page listing common locations - simply replace the -1 ‎in the mej URL to the corresponding map ID

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2.2. If unsure about the coloured tile markings, enter a number around where you think for player/cannon etc, then tweak and re-run the code

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2.3. Choose how many tiles to trim off each side of the image (left,upper,right,bottom)

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2.4. Select which legend to use from the listed options

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2.5. Remove the # ‎from any lines you have set (any lines with a # ‎will not be executed)

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Step 3

3.1. Run the main code

3.2. Wait for the code to execute - you can track its progress at the bottom of your browser

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Step 4

4.1. Scroll to the very bottom of the page to view your created map and right click > save ‎when happy, or scroll back up and tweak the variables if it's not right

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Real example

The objective: make a player position map for the new Osseous AFK guide.

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First we find the Rex Matriarch arena (we've had to scroll across Mej's map to find it):

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Next, we add map gridlines on so we know which map chunks to reference:

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Now we want to reduce the map to just the Osseous arena (highlighted by the yellow box), which crosses multiple map chunks.

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First we set the x and y values to be of the top tile (63,153)

mej_x = 63
mej_y = 153

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Next let's make it so 2 tiles are shown vertically

mej_height = 2
mej_width = 1

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If we ran the code now, it would give us this:

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Let's trim off the sides and press the run button to check our map:

left = 1
upper = 43
right = 21
lower = 43

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It's almost there! Let's cut off some of that excess map, put a coloured tile for the player position, and set the legend to show just 'player position':

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Now let's hit the run button again... we did it!

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