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--- crpl:docs:getwall [2013/01/14 19:03] – created chani
+++ crpl:docs:getwall [2025/02/14 14:57] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-TODO
+<- [[crpl:crplreference| CRPL reference]] <- [[crpl:crplreference#terrain_and_wall_commands|Terrain and Wall Commands]]
+=====  GetWall  =====
+^Arguments^Result^Notation^
+|X, Y|0 to 1 |''x1 y1 -- i1 ''|
+=== Description ===
+Pushes to the stack the value of the wall at the cell coordinates.
+represents no wall and 1 represents a wall of full health.
+Values in between represent varying degrees of health for the wall.
+=== Examples ===
+This script will check if there is any single wall piece under the CRPL core this script is attached to. If there is, it will trace 1 (TRUE), if not, it will trace 0 (FALSE).
+<code>
+CurrentX ->x
+CurrentY ->y
+Self CONST_CELLWIDTH GetUnitAttribute ->cellWidth
+Self CONST_CELLHEIGHT GetUnitAttribute ->cellHeight
+<-cellWidth 2 div ->cellWidthRadius
+<-cellHeight 2 div ->cellHeightRadius
+FALSE ->isAnyWallUnderMe
+#iterate over all cells occupied by me
+<-y <-cellHeightRadius add 1 add <-y <-cellHeightRadius sub do
+	<-x <-cellWidthRadius add 1 add <-x <-cellWidthRadius sub do
+		I J GetWall ->wall
+		<-wall 0 gt if
+			TRUE ->isAnyWallUnderMe
+		endif
+	loop
+loop
+ShowTraceLog
+<-isAnyWallUnderMe Trace
+</code>

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