Atemo c6470ff4ff Clean-up permanent monster spawn: (#1831)
* Clean-up permanent monster spawn:
- <delay1>,<delay2>,<event> are actually optionnal field
- <event> value 0 and 1 are meaningless (actually event name with length < 4 are skipped)

* Exported monster AI constants

* Updated docs for monster size constants (already exported)
Notes:
- the default size for monster script cmd was small not medium
- monster script cmd now display a warning for size above SZ_BIG (previously SZ_ALL)

* - Fixed an issue to make <xs> and <ys> optionnals
- Updated npcs scripts

* Leftover in the docs for permanent monster spawn

* Corrected english docs. Credit to @aleos89
Added additionnal warning for xs / ys negative input. Credit @Lemongrass3110 

Thanks to @cydh for the idea
2017-01-22 19:03:08 +01:00
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