Distance - Revision history

Epyon at 11:56, 11 August 2025

2025-08-11T11:56:03Z

GinDiamond at 17:12, 20 July 2012

2012-07-20T17:12:27Z

GinDiamond at 17:12, 20 July 2012

2012-07-20T17:12:15Z

GinDiamond at 17:12, 20 July 2012

2012-07-20T17:12:02Z

GinDiamond at 17:11, 20 July 2012

2012-07-20T17:11:45Z

GinDiamond at 17:11, 20 July 2012

2012-07-20T17:11:28Z

GinDiamond at 17:09, 20 July 2012

2012-07-20T17:09:27Z

Game Hunter: Created page with "{{Technical}} {| style="rules: cols; border: 2px solid darkred; border-spacing: 0; float: right; font-size: 100%; margin: 0.25em 0.5em; text-align: right" |style="background: da..."

2011-07-15T02:28:43Z

Created page with "{{Technical}} {| style="rules: cols; border: 2px solid darkred; border-spacing: 0; float: right; font-size: 100%; margin: 0.25em 0.5em; text-align: right" |style="background: da..."

New page

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{| style="rules: cols; border: 2px solid darkred; border-spacing: 0; float: right; font-size: 100%; margin: 0.25em 0.5em; text-align: right"
|style="background: darkred; color: yellow; font-size: 120%; text-align: center"|'''Distances'''
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Distance in Doom RL is measured according to the so-called Angband metric. In short, distance is the long axis plus half the short axis. The result is always rounded down.

The Angband metric is intended to approximate the usual Euclidean metric. If we round the Euclidean metric to the nearest integer, then the comparison is as follows. Up to a radius of 3, the metrics coincide exactly. Up to a radius of 12, the difference is within 1. In general (ignoring rounding), the Angband metric is always greater than the Euclidean metric, but not more than 12% greater.

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 Sight radius has been dropped by -1 in order to balance the glow/rendered light of the graphical tiles.
-Distance in Doom RL is measured according to the so-called Angband metric. In short, distance is the long axis plus half the short axis. The result is always rounded down.
+Distance in DRL is measured according to the so-called Angband metric. In short, distance is the long axis plus half the short axis. The result is always rounded down.
 The Angband metric is intended to approximate the usual Euclidean metric. If we round the Euclidean metric to the nearest integer, then the comparison is as follows. Up to a radius of 3, the metrics coincide exactly. Up to a radius of 11, the difference is within 1. In general (ignoring rounding), the Angband metric is always greater than the Euclidean metric, but not more than 12% greater.

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 |<pre>
-−
-      9988899
-     99887778899
+      988777889
-    9887766677889
+     88776667788
-   987766555667789
+    8776655566778
-   987655444556789
+    8765544455678
-  98765443334456789
+   876544333445678
-  98765432223456789
+   876543222345678
-9876543211123456789
+  87654321112345678
-987654321@123456789
+  87654321@12345678
-9876543211123456789
+  87654321112345678
-  98765432223456789
+   876543222345678
- 98765443334456789
+   876544333445678
-   987655444556789
+   8765544455678
-   987766555667789
+    8776655566778
-    9887766677889
+     88776667788
-     99887778899
+     988777889
-      9988899
-−
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