Differences

This shows you the differences between two versions of the page.

--- units [2017/07/09 13:49] – created korshun
+++ units [2017/07/09 14:13] (current) – korshun
@@ Line 1: / Line 1: @@
-====== Units ======
+====== Standard ZDoom units ======
-  * **distance** -- mapunits
+  * **distance** -- mapunits (also called mappixels)
+  * **time** -- tics (or seconds in non-gameplay contexts)
+  * **angle** -- turns counterclockwise
+===== Derived units =====
   * **velocity** -- mapunits per tic
   * **acceleration** -- mapunits per tic^2
-  * **gravity** -- mapunits per tic^2
+  * **gravity** -- as acceleration
-  * **time** -- tics
-  * **angle** -- turns counterclockwise
+Gravity is defined by free fall acceleration, and is measured using the same units as normal acceleration.
+===== Non-standard units =====
+These units should be converted to standard units before performing any operations with them.
+==== Space ====
+  * meters, feet, and other nonsense -- Doom doesn't have an accurate scale
+  * sv_gravity units (800:1) -- converted to acceleration by dividing by 800
+  * JumpZ units -- see [[functions:jumpz2height]]
+==== Time ====
+  * seconds (35:1)
+  * octics (4.375:1)
+==== Angles ====
+  * degrees (360:1)
+  * radians (tau:1)
+  * byte angles (256:1)

ACSUtils Wiki