Illegal Exception in No-Action Jackson

[tag2015]

Describe the bug
No-Action Jackson crashes with an Illegal exception right after the intro (intro can be skipped pressing ESC)

An exception 0xC0000005 occurred in ACWIN.EXE at EIP = 0x004951DA; program pointer is +6, engine version 3.6.0.57, gtags (0,12)
CrashInfo.3.6.0.57.dmp

AGS Version
Latest 3.6.0/3.6.1

Game
https://archive.org/details/No-Action_Jackson

To Reproduce
Steps to reproduce the behavior:

1. Start game
2. Wait (or skip) intro

Desktop
Win10

[ivan-mogilko]

This seems to happen when hovering a cursor over certain areas on the game screen. For some reason the "GetHotspotProperty" is called with -1 index.

EDIT: checking much older engine (around v3.4.4), it seems like this was happening all the time, but it somehow managed to "get away with this" because data had a different memory layout previously.

EDIT2: this starts crashing engines since v3.5.0, somehow nobody noticed this until now...

[ivan-mogilko]

Pushed a fix: 99f94c4

[tag2015]

Thanks for the quick fix! Confirmed working