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Added functional 'cure wounds' spell

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Also added more spell verification in the 'cast' command,
accounting for spell's MP cost and whether it can be used in
combat
This commit is contained in:
FlutterSprite 2017-11-12 18:23:22 -08:00
parent 7ddb5162ab
commit 5fe3cd186d
1 changed files with 72 additions and 11 deletions
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83
evennia/contrib/turnbattle/tb_magic.py
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@ -312,6 +312,8 @@ class TBMagicCharacter(DefaultCharacter):
self.db.max_hp = 100 # Set maximum HP to 100
self.db.hp = self.db.max_hp # Set current HP to maximum
self.db.spells_known = [] # Set empty spells known list
self.db.max_mp = 20 # Set maximum MP to 20
self.db.mp = self.db.max_mp # Set current MP to maximum
"""
Adds attributes for a character's current and maximum HP.
We're just going to set this value at '100' by default.
@ -733,6 +735,13 @@ class CmdLearnSpell(Command):
class CmdCast(MuxCommand):
"""
Cast a magic spell!
Notes: This is a quite long command, since it has to cope with all
the different circumstances in which you may or may not be able
to cast a spell. None of the spell's effects are handled by the
command - all the command does is verify that the player's input
is valid for the spell being cast and then call the spell's
function.
"""
key = "cast"
@ -789,8 +798,29 @@ class CmdCast(MuxCommand):
spelldata.update({"noncombat_spell":True})
if "max_targets" not in spelldata:
spelldata.update({"max_targets":1})
# Store any superfluous options as kwargs to pass to the spell function
kwargs = {}
spelldata_opts = ["spellfunc", "target", "cost", "combat_spell", "noncombat_spell", "max_targets"]
for key in spelldata:
if key not in spelldata_opts:
kwargs.update({key:spelldata[key]})
# If caster doesn't have enough MP to cover the spell's cost, give error and return
if spelldata["cost"] > caller.db.mp:
caller.msg("You don't have enough MP to cast '%s'." % spell_to_cast)
# If in combat and the spell isn't a combat spell, give error message and return
if spelldata["combat_spell"] == False and is_in_combat(caller):
caller.msg("You can't use the spell '%s' in combat." % spell_to_cast)
return
# If not in combat and the spell isn't a non-combat spell, error ms and return.
if spelldata["noncombat_spell"] == False and is_in_combat(caller) == False:
caller.msg("You can't use the spell '%s' outside of combat." % spell_to_cast)
return
# If spell takes no targets, give error message and return
# If spell takes no targets and one is given, give error message and return
if len(spell_targets) > 0 and spelldata["target"] == "none":
caller.msg("The spell '%s' isn't cast on a target.")
return
@ -798,7 +828,7 @@ class CmdCast(MuxCommand):
# If no target is given and spell requires a target, give error message
if spelldata["target"] not in ["self", "none"]:
if len(spell_targets) == 0:
caller.msg("The spell %s requires a target." % spell_to_cast)
caller.msg("The spell '%s' requires a target." % spell_to_cast)
return
# If more targets given than maximum, give error message
@ -806,28 +836,32 @@ class CmdCast(MuxCommand):
targplural = "target"
if spelldata["max_targets"] > 1:
targplural = "targets"
caller.msg("The spell %s can only be cast on %i %s." % (spell_to_cast, spelldata["max_targets"], targplural))
caller.msg("The spell '%s' can only be cast on %i %s." % (spell_to_cast, spelldata["max_targets"], targplural))
return
# Set up our candidates for targets
target_candidates = []
# If spell targets 'any' or 'other', any object in caster's inventory or location
# can be targeted by the spell.
if spelldata["target"] in ["any", "other"]:
target_candidates = caller.location.contents + caller.contents
# If spell targets 'anyobj', only non-character objects can be targeted.
if spelldata["target"] == "anyobj":
prefilter_candidates = caller.location.contents + caller.contents
for thing in prefilter_candidates:
if not thing.attributes.has("max_hp"): # Has no max HP, isn't a fighter
target_candidates.append(thing)
# If spell targets 'anychar' or 'otherchar', only characters can be targeted.
if spelldata["target"] in ["anychar", "otherchar"]:
prefilter_candidates = caller.location.contents
for thing in prefilter_candidates:
if thing.attributes.has("max_hp"): # Has max HP, is a fighter
target_candidates.append(thing)
# Now, match each entry in spell_targets to an object
# Now, match each entry in spell_targets to an object in the search candidates
matched_targets = []
for target in spell_targets:
match = caller.search(target, candidates=target_candidates)
@ -841,11 +875,12 @@ class CmdCast(MuxCommand):
# Give error message if trying to cast an "other" target spell on yourself
if spelldata["target"] in ["other", "otherchar"]:
if caller in spell_targets:
caller.msg("You can't cast %s on yourself." % spell_to_cast)
caller.msg("You can't cast '%s' on yourself." % spell_to_cast)
return
# Return if "None" in target list, indicating failed match
if None in spell_targets:
# No need to give an error message, as 'search' gives one by default.
return
# Give error message if repeats in target list
@ -853,7 +888,8 @@ class CmdCast(MuxCommand):
caller.msg("You can't specify the same target more than once!")
return
caller.msg("You cast %s! Fwooosh!" % spell_to_cast)
# Finally, we can cast the spell itself
spelldata["spellfunc"](caller, spell_to_cast, spell_targets, spelldata["cost"], **kwargs)
class CmdRest(Command):
@ -927,7 +963,31 @@ class BattleCmdSet(default_cmds.CharacterCmdSet):
self.add(CmdCombatHelp())
self.add(CmdLearnSpell())
self.add(CmdCast())
"""
SPELL FUNCTIONS START HERE
"""
def spell_cure_wounds(caster, spell_name, targets, cost, **kwargs):
"""
Spell that restores HP to a target.
"""
spell_msg = "%s casts %s!" % (caster, spell_name)
for character in targets:
to_heal = randint(20, 40) # Restore 20 to 40 hp
if character.db.hp + to_heal > character.db.max_hp:
to_heal = character.db.max_hp - character.db.hp # Cap healing to max HP
character.db.hp += to_heal
spell_msg += " %s regains %i HP!" % (character, to_heal)
caster.db.mp -= cost # Deduct MP cost
caster.location.msg_contents(spell_msg) # Message the room with spell results
if is_in_combat(caster): # Spend action if in combat
spend_action(caster, 1, action_name="cast")
"""
Required values for spells:
@ -941,8 +1001,8 @@ Required values for spells:
"other" - Any object excluding the caster
"otherchar" - Any character excluding the caster
spellfunc (callable): Function that performs the action of the spell.
Must take the following arguments: caster (obj), targets (list),
and cost(int).
Must take the following arguments: caster (obj), spell_name (str), targets (list),
and cost(int), as well as **kwargs.
Optional values for spells:
@ -957,5 +1017,6 @@ Any other values specified besides the above will be passed as kwargs to the spe
SPELLS = {
"magic missile":{"spellfunc":None, "target":"otherchar", "cost":3, "noncombat_spell":False, "max_targets":3},
"cure wounds":{"spellfunc":None, "target":"anychar", "cost":5},
}
"cure wounds":{"spellfunc":spell_cure_wounds, "target":"anychar", "cost":5, "its_a_kwarg":"wow"},
}