Implements transformation mechanic as a spell effect.

[walt253]

Implements transformation mechanic as a spell effect.

; The creature it transforms into. Accepts ANY_CREATURE for random but evil will stay evil and good will stay good.
Transform = NULL

Example spell to replace the unused SPELL_LIZARD:

[spell29]
; Transform the user into a Fly for 15 seconds.
Name = SPELL_TRANSFORM
CastAtThing = 0
ShotModel = NOSHOT
SpellPower = NOPOWER
; Set duration to 0 to make the transformation permanent.
Duration = 300
AuraEffect = EFFECT_TINY_SPARKS
AuraDuration = 300
AuraFrequency = 4
Transform = FLY
SelfCasted = 1 25 1
SymbolSprites = 768 770

Example instance:

; This example is for possession only but can be set to be cast under specific conditions using 'ValidateSourceFunc', 'ValidateTargetFunc', and 'SELF_BUFF'.
[instance54]
Name = TRANSFORM
Time = 10
ActionTime = 10
ResetTime = 1200
FPTime = 3
FPActionTime = 3
FPResetTime = 1200
FPInstantCast = 0
ForceVisibility = 100
TooltipTextID = 201
SymbolSprites = 434
Graphics = SCREAM
PrimaryTarget = 3
Properties =
Function = creature_cast_spell SPELL_TRANSFORM 0

The mechanic can also be used offensively. For example, assigning SpellEffect = SPELL_TRANSFORM to a shot will transform the target!

[walt253]

This is built on top of #3821, as it uses the function get_random_appropriate_creature_kind.

Therefore, #3821 should be merged first.

[walt253]

I still don't know why it only checked for diptera, but it makes sense to check for innate flying ability.

[Dragonlich8]

Please, can you make some sample for "automatic" and for offensively mode?
Thank you!

[walt253]

Please, can you make some sample for "automatic" and for offensively mode? Thank you!

You just need to give the instance SELF_BUFF with correct ValidateSourceFunc & ValidateTargetFunc to make them use it "automatically", example:

Properties = SELF_BUFF
ValidateSourceFunc = validate_source_generic 0 0
ValidateTargetFunc = validate_target_benefits_from_offensive 0 0

As for the offensive you just need to give to a shot the SpellEffect:

[shot1]
Name = SHOT_FIREBALL
SpellEffect = SPELL_TRANSFORM

Try to add this line SpellEffect = SPELL_TRANSFORM to SHOT_FIREBALL.

[walt253]

In draft, there is more situations to check for original model.