lara: test alignment position height validity in TR1

This applies a fix introduced in TR2 to TR1 so that Lara doesn't become
clamped under a steeply sloped ceiling if picking up an item there.

Resolves #2879.

docs/tr1/CHANGELOG.md

@@ -25,6 +25,7 @@
 - fixed the scale of the four keys in St. Francis' Folly (#2652)
 - fixed the panther at times not making a sound when it dies, and restored Skate Kid's death SFX (#2647)
 - fixed pushblocks being rotated when Lara grabs them, most noticeable if asymmetric textures have been used (#2776)
+- fixed Lara becoming clamped if she picks up an item under a steeply sloped ceiling (#2879)
 - fixed a crash when 3D pickups are disabled and Lara crosses a trigger to look at a pickup item (#2711, regression from 4.8)
 - fixed trapezoid filter warping on faces close to the camera (#2629, regression from 4.9)
 - fixed Mac builds crashing upon start (regression from 4.9)

docs/tr1/README.md

@@ -485,6 +485,7 @@ Not all options are turned on by default. Refer to `TR1X_ConfigTool.exe` for det
 - fixed being able to shoot the scion multiple times if save/load is used while it blows up
 - fixed the game crashing if a cinematic is triggered but the level contains no cinematic frames
 - fixed pushblocks being rotated when Lara grabs them, most noticeable if asymmetric textures have been used
+- fixed Lara becoming clamped if she picks up an item under a steeply sloped ceiling
 
 #### Cheats
 - added a fly cheat