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powers.pb
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; Lost Labyrinth VI: Portals
; powers
; written in PureBasic 4.20 (http://www.purebasic.com)
; created: 10.11.2008 Frank Malota <malota@web.de>
; modified: 08.01.2009 Frank Malota <malota@web.de>
; resets a power
Procedure reset_power(*power.power_db_struct)
Protected i.w = 0
With *power
\name$ = ""
\description$ = ""
\tile = 0
\effect = 0
\effect_name$ = ""
\effect_strength = 0
\strength_bonus_attribute = 0
\strength_bonus_attribute_name$ = ""
\strength_multiplier = 1
\strength_randomized = 0
\randomized_strength_bonus = 0
\randomized_strength_bonus_attribute = 0
\randomized_strength_bonus_attribute_name$ = ""
\randomized_strength_multiplier = 1
\randomized_strength_divisor = 1
\animation$ = ""
\end_turn = 0
\sound$ = ""
\failure_sound$ = ""
\wrong_use_sound$ = ""
\success_attribute = 0
\success_attribute_name$ = ""
\success_bonus = 0
\success_attribute_multiplier = 1
\success_attribute_divisor = 1
\success_message$ = ""
\failure_message$ = ""
\wrong_use_message$ = ""
\already_used_message$ = ""
\cost = 0
\cost_attribute = 0
\cost_attribute_name$ = ""
\class$ = ""
\range = 0
\modify_attribute = 0
\modify_attribute_name$ = ""
\activates_ability_id = 0
\activates_ability_name$ = ""
\deplete_attribute_id = 0
\deplete_attribute_name$ = ""
\cooldown = 0
\monster_effect$ = ""
\field_effect$ = ""
\affects_only_monster_class$ = ""
EndWith
For i=0 To #MAX_NUMBER_OF_POWER_REQUIREMENTS - 1
With *power\power_requirement[i]
\attribute = 0
\attribute_name$ = ""
\value = 0
EndWith
Next
EndProcedure
; resets power db
Procedure reset_power_db()
Protected i.w, j.w
For i=0 To #MAX_NUMBER_OF_POWERS - 1
reset_power(@power_db(i))
Next
EndProcedure
; resolves names in power db
Procedure powers_db_resolve_names()
Protected i.w, j.w, k.w
For i=0 To #MAX_NUMBER_OF_POWERS-1
If power_db(i)\strength_bonus_attribute_name$ <> "" And power_db(i)\strength_bonus_attribute = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES-1
If ability_db(j)\name$ = power_db(i)\strength_bonus_attribute_name$
power_db(i)\strength_bonus_attribute = j
EndIf
Next
If power_db(i)\strength_bonus_attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\strength_bonus_attribute_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\success_attribute_name$ <> "" And power_db(i)\success_attribute = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES-1
If ability_db(j)\name$ = power_db(i)\success_attribute_name$
power_db(i)\success_attribute = j
EndIf
Next
If power_db(i)\success_attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\success_attribute_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\cost_attribute_name$ <> "" And power_db(i)\cost_attribute = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES-1
If ability_db(j)\name$ = power_db(i)\cost_attribute_name$
power_db(i)\cost_attribute = j
EndIf
Next
If power_db(i)\cost_attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\cost_attribute_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\modify_attribute_name$ <> "" And power_db(i)\modify_attribute = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES-1
If ability_db(j)\name$ = power_db(i)\modify_attribute_name$
power_db(i)\modify_attribute = j
EndIf
Next
If power_db(i)\modify_attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\modify_attribute_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\adjust_attribute_name$ <> "" And power_db(i)\adjust_attribute = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES-1
If ability_db(j)\name$ = power_db(i)\adjust_attribute_name$
power_db(i)\adjust_attribute = j
EndIf
Next
If power_db(i)\adjust_attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\adjust_attribute_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\duration_bonus_attribute_name$ <> "" And power_db(i)\duration_bonus_attribute = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES - 1
If ability_db(j)\name$ = power_db(i)\duration_bonus_attribute_name$
power_db(i)\duration_bonus_attribute = j
EndIf
Next
If power_db(i)\duration_bonus_attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\duration_bonus_attribute_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\activates_ability_name$ <> "" And power_db(i)\activates_ability_id = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES - 1
If ability_db(j)\name$ = power_db(i)\activates_ability_name$
power_db(i)\activates_ability_id = j
EndIf
Next
If power_db(i)\activates_ability_id = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\activates_ability_name$ + Chr(34))
EndIf
EndIf
If power_db(i)\deplete_attribute_name$ <> "" And power_db(i)\deplete_attribute_id = 0
For j=0 To #MAX_NUMBER_OF_ABILITIES - 1
If ability_db(j)\name$ = power_db(i)\deplete_attribute_name$
power_db(i)\deplete_attribute_id = j
EndIf
Next
If power_db(i)\deplete_attribute_id = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\deplete_attribute_name$ + Chr(34))
EndIf
EndIf
For j=0 To #MAX_NUMBER_OF_POWER_REQUIREMENTS-1
If power_db(i)\power_requirement[j]\attribute_name$ <> "" And power_db(i)\power_requirement[j]\attribute = 0
For k=0 To #MAX_NUMBER_OF_ABILITIES-1
If ability_db(k)\name$ = power_db(i)\power_requirement[j]\attribute_name$
power_db(i)\power_requirement[j]\attribute = k
EndIf
Next
If power_db(i)\power_requirement[j]\attribute = 0
error_message("powers_db_resolve_names(): cannot find ability " + Chr(34) + power_db(i)\power_requirement[j]\attribute_name$ + Chr(34))
EndIf
EndIf
Next
Next
EndProcedure
; loads power definition from XML file into db structure
Procedure load_power_db()
Protected filename$ ="data\powers.xml"
Protected val$, name$, effect.w, effect_strength.w, strength_bonus_attribute.w
Protected strength_bonus_attribute_name$, animation$, end_turn.b, power_idx.w = 1
Protected effect_name$, tile.w, sound$, description$, success_attribute.w
Protected success_attribute_name$, success_bonus.w, success_attribute_multiplier.b
Protected success_attribute_divisor.b, cost.w, cost_attribute.w, cost_attribute_name$
Protected strength_multiplier.b, strength_divisor.b, failure_message$, class$
Protected success_message$, val2$, req_idx.w, req_attribute.w, req_attribute_name$
Protected req_value.w, wrong_use_message$, failure_sound$, wrong_use_sound$, range.b
Protected modify_attribute.w, modify_attribute_name$, strength_randomized.b
Protected adjust_attribute.w, adjust_attribute_name$, duration.w, duration_bonus_attribute.w
Protected duration_bonus_attribute_name$, duration_multiplier.w, duration_divisor.w
Protected activates_ability_id.w, activates_ability_name$, deplete_attribute_id.w, deplete_attribute_name$
Protected power_id.w, cooldown.w = 0, monster_effect$, randomized_strength_bonus.w = 0
Protected affects_only_monster_class$, *mainnode, *node, *childnode
Protected new_power.power_db_struct, message_language$, message_type$
If CreateXML(0) = 0
error_message("load_power_db(): could not create xml structure in memory!")
EndIf
If LoadXML(0, filename$) = 0
error_message("load_power_db(): could not open power xml file: " + Chr(34) + filename$ + Chr(34))
EndIf
If XMLStatus(0) <> 0
error_message("load_power_db(): error in xml structure of powers file " + Chr(34) + filename$ + Chr(34) + ": " + XMLError(0))
EndIf
reset_power_db()
*mainnode = MainXMLNode(0)
If *mainnode
*node = ChildXMLNode(*mainnode)
While *node <> 0
Select GetXMLNodeName(*node)
Case "power":
reset_power(@new_power)
power_id = 0
If ExamineXMLAttributes(*node)
While NextXMLAttribute(*node)
val$ = XMLAttributeValue(*node)
Select XMLAttributeName(*node)
Case "id":
power_id = Val(val$)
If power_id < 1 Or power_id >= #MAX_NUMBER_OF_POWERS
error_message("load_power_db(): wrong ID attribute " + Chr(34) + val$ + Chr(34) + " in powers xml file " + Chr(34) + filename$ + Chr(34))
EndIf
Case "name":
new_power\name$ = val$
Case "description":
new_power\description$ = val$
Case "tile":
new_power\tile = Val(val$)
Case "effect":
new_power\effect = Val(val$)
Case "effect_name":
new_power\effect_name$ = val$
Case "effect_strength":
new_power\effect_strength = Val(val$)
Case "strength_bonus_attribute":
new_power\strength_bonus_attribute = Val(val$)
Case "strength_bonus_attribute_name":
new_power\strength_bonus_attribute_name$ = val$
Case "strength_multiplier":
new_power\strength_multiplier = Val(val$)
Case "strength_divisor":
new_power\strength_divisor = Val(val$)
Case "strength_randomized":
If val$ = "yes"
new_power\strength_randomized = 1
EndIf
Case "randomized_strength_bonus":
new_power\randomized_strength_bonus = Val(val$)
Case "randomized_strength_bonus_attribute":
new_power\randomized_strength_bonus_attribute = Val(val$)
Case "randomized_strength_bonus_attribute_name":
new_power\randomized_strength_bonus_attribute_name$ = val$
Case "randomized_strength_multiplier":
new_power\randomized_strength_multiplier = Val(val$)
Case "randomized_strength_divisor":
new_power\randomized_strength_divisor = Val(val$)
Case "animation":
new_power\animation$ = val$
Case "end_turn":
If val$ = "yes"
new_power\end_turn = 1
EndIf
Case "sound":
new_power\sound$ = val$
Case "failure_sound":
new_power\failure_sound$ = val$
Case "wrong_use_sound":
new_power\wrong_use_sound$ = val$
Case "success_attribute":
new_power\success_attribute = Val(val$)
Case "success_attribute_name":
new_power\success_attribute_name$ = val$
Case "success_bonus":
new_power\success_bonus = Val(val$)
Case "success_attribute_multiplier":
new_power\success_attribute_multiplier = Val(val$)
Case "success_attribute_divisor":
new_power\success_attribute_divisor = Val(val$)
Case "success_message":
new_power\success_message$ = val$
Case "failure_message":
new_power\failure_message$ = val$
Case "wrong_use_message":
new_power\wrong_use_message$ = val$
Case "already_used_message":
new_power\already_used_message$ = val$
Case "cost":
new_power\cost = Val(val$)
Case "cost_attribute":
new_power\cost_attribute = Val(val$)
Case "cost_attribute_name":
new_power\cost_attribute_name$ = val$
Case "class":
new_power\class$ = val$
Case "range":
new_power\range = Val(val$)
Case "modify_attribute":
new_power\modify_attribute = Val(val$)
Case "modify_attribute_name":
new_power\modify_attribute_name$ = val$
Case "adjust_attribute":
new_power\adjust_attribute = Val(val$)
Case "adjust_attribute_name":
new_power\adjust_attribute_name$ = val$
Case "duration":
new_power\duration = Val(val$)
Case "duration_bonus_attribute":
new_power\duration_bonus_attribute = Val(val$)
Case "duration_bonus_attribute_name":
new_power\duration_bonus_attribute_name$ = val$
Case "duration_multiplier":
new_power\duration_multiplier = Val(val$)
Case "duration_divisor":
new_power\duration_divisor = Val(val$)
Case "activates_ability_id":
new_power\activates_ability_id = Val(val$)
Case "activates_ability_name":
new_power\activates_ability_name$ = val$
Case "deplete_attribute_id":
new_power\deplete_attribute_id = Val(val$)
Case "deplete_attribute_name":
new_power\deplete_attribute_name$ = val$
Case "cooldown":
new_power\cooldown = Val(val$)
Case "monster_effect":
new_power\monster_effect$ = val$
Case "affects_only_monster_class":
new_power\affects_only_monster_class$ = val$
Case "field_effect":
new_power\field_effect$ = val$
Default:
error_message("load_power_db(): unknown attribute " + Chr(34) + XMLAttributeName(*node) + Chr(34) + " in power tag in power xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
Wend
If power_id > 0
With power_db(power_id)
\name$ = new_power\name$
\description$ = new_power\description$
\tile = new_power\tile
\effect_name$ = new_power\effect_name$
\effect = new_power\effect
\effect_strength = new_power\effect_strength
\strength_bonus_attribute = new_power\strength_bonus_attribute
\strength_bonus_attribute_name$ = new_power\strength_bonus_attribute_name$
\strength_multiplier = new_power\strength_multiplier
\strength_divisor = new_power\strength_divisor
\strength_randomized = new_power\strength_randomized
\randomized_strength_bonus = new_power\randomized_strength_bonus
\randomized_strength_bonus_attribute = new_power\randomized_strength_bonus_attribute
\randomized_strength_bonus_attribute_name$ = new_power\randomized_strength_bonus_attribute_name$
\randomized_strength_multiplier = new_power\randomized_strength_multiplier
\randomized_strength_divisor = new_power\randomized_strength_divisor
\animation$ = new_power\animation$
\end_turn = new_power\end_turn
\sound$ = new_power\sound$
\failure_sound$ = new_power\failure_sound$
\wrong_use_sound$ = new_power\wrong_use_sound$
\success_attribute = new_power\success_attribute
\success_attribute_name$ = new_power\success_attribute_name$
\success_bonus = new_power\success_bonus
\success_attribute_multiplier = new_power\success_attribute_multiplier
\success_attribute_divisor = new_power\success_attribute_divisor
\success_message$ = new_power\success_message$
\failure_message$ = new_power\failure_message$
\wrong_use_message$ = new_power\wrong_use_message$
\already_used_message$ = new_power\already_used_message$
\cost = new_power\cost
\cost_attribute = new_power\cost_attribute
\cost_attribute_name$ = new_power\cost_attribute_name$
\class$ = new_power\class$
\range = new_power\range
\modify_attribute = new_power\modify_attribute
\modify_attribute_name$ = new_power\modify_attribute_name$
\adjust_attribute = new_power\adjust_attribute
\adjust_attribute_name$ = new_power\adjust_attribute_name$
\duration = new_power\duration
\duration_bonus_attribute = new_power\duration_bonus_attribute
\duration_bonus_attribute_name$ = new_power\duration_bonus_attribute_name$
\duration_multiplier = new_power\duration_multiplier
\duration_divisor = new_power\duration_divisor
\activates_ability_id = new_power\activates_ability_id
\activates_ability_name$ = new_power\activates_ability_name$
\deplete_attribute_id = new_power\deplete_attribute_id
\deplete_attribute_name$ = new_power\deplete_attribute_name$
\cooldown = new_power\cooldown
\monster_effect$ = new_power\monster_effect$
\affects_only_monster_class$ = new_power\affects_only_monster_class$
\field_effect$ = new_power\field_effect$
EndWith
req_idx = 0
*childnode = ChildXMLNode(*node)
While *childnode <> 0
Select GetXMLNodeName(*childnode)
Case "requirement":
If req_idx >= #MAX_NUMBER_OF_POWER_REQUIREMENTS
error_message("load_power_db(): too much requirements for one power in powers xml file " + Chr(34) + filename$ + Chr(34))
EndIf
req_attribute = 0
req_attribute_name$ = ""
req_value = 0
If ExamineXMLAttributes(*childnode)
While NextXMLAttribute(*childnode)
val2$ = XMLAttributeValue(*childnode)
Select XMLAttributeName(*childnode)
Case "attribute":
req_attribute = Val(val2$)
Case "attribute_name":
req_attribute_name$ = val2$
Case "value":
req_value = Val(val2$)
Default:
error_message("load_power_db(): wrong attribute " + Chr(34) + XMLAttributeName(*childnode) + Chr(34) + " in requirement tag in powers xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
Wend
EndIf
If req_attribute > 0 Or req_attribute_name$ <> ""
power_db(power_id)\power_requirement[req_idx]\attribute = req_attribute
power_db(power_id)\power_requirement[req_idx]\attribute_name$ = req_attribute_name$
power_db(power_id)\power_requirement[req_idx]\value = req_value
req_idx = req_idx + 1
EndIf
Case "name":
If ExamineXMLAttributes(*childnode)
While NextXMLAttribute(*childnode)
val2$ = XMLAttributeValue(*childnode)
Select XMLAttributeName(*childnode)
Case "language":
If val2$ = preferences\language$
power_db(power_id)\name$ = GetXMLNodeText(*childnode)
EndIf
Default:
error_message("load_power_db(): unknown attribute " + Chr(34) + XMLAttributeName(*childnode) + Chr(34) + " in name tag in power xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
Wend
EndIf
Case "description":
If ExamineXMLAttributes(*childnode)
While NextXMLAttribute(*childnode)
val2$ = XMLAttributeValue(*childnode)
Select XMLAttributeName(*childnode)
Case "language":
If val2$ = preferences\language$
power_db(power_id)\description$ = GetXMLNodeText(*childnode)
EndIf
Default:
error_message("load_power_db(): unknown attribute " + Chr(34) + XMLAttributeName(*childnode) + Chr(34) + " in description tag in power xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
Wend
EndIf
Case "message":
message_language$ = ""
message_type$ = ""
If ExamineXMLAttributes(*childnode)
While NextXMLAttribute(*childnode)
val2$ = XMLAttributeValue(*childnode)
Select XMLAttributeName(*childnode)
Case "language":
message_language$ = val2$
Case "type":
message_type$ = val2$
Default:
error_message("load_power_db(): unknown attribute " + Chr(34) + XMLAttributeName(*childnode) + Chr(34) + " in message tag in power xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
Wend
If message_language$ = preferences\language$
Select message_type$
Case "success":
power_db(power_id)\success_message$ = GetXMLNodeText(*childnode)
Case "failure":
power_db(power_id)\failure_message$ = GetXMLNodeText(*childnode)
Case "wrong use":
power_db(power_id)\wrong_use_message$ = GetXMLNodeText(*childnode)
Case "already used":
power_db(power_id)\already_used_message$ = GetXMLNodeText(*childnode)
Default:
error_message("load_power_db(): unknown message type " + Chr(34) + message_type$ + Chr(34) + " in powers xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
EndIf
EndIf
Default:
error_message("load_power_db(): unknown tag " + Chr(34) + GetXMLNodeName(*childnode) + Chr(34) + " in powers xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
*childnode = NextXMLNode(*childnode)
Wend
EndIf
EndIf
Default:
error_message("load_power_db(): unknown tag " + Chr(34) + GetXMLNodeName(*node) + Chr(34) + " in power xml file " + Chr(34) + filename$ + Chr(34))
EndSelect
*node = NextXMLNode(*node)
Wend
EndIf
FreeXML(0)
powers_db_resolve_names()
EndProcedure
; returns power effect strength for current character
Procedure.w power_strength(power_id.w)
Protected rc.w = 0, attribute.w, bonus.w
If power_id < 1 Or power_id >= #MAX_NUMBER_OF_POWERS
error_message("power_strength(): wrong power id: " + Str(power_id))
EndIf
rc = power_db(power_id)\effect_strength
attribute = power_db(power_id)\strength_bonus_attribute
If attribute > 0 And attribute < #MAX_NUMBER_OF_ABILITIES
bonus = attribute_current_val(attribute)
If power_db(power_id)\strength_multiplier <> 1
bonus = bonus * power_db(power_id)\strength_multiplier
EndIf
If power_db(power_id)\strength_divisor > 1
bonus = Int(bonus / power_db(power_id)\strength_divisor)
EndIf
rc = rc + bonus
EndIf
ProcedureReturn rc
EndProcedure
; returns randomized part of power effect strength for current character
Procedure.w power_strength_random_part(power_id.w)
Protected rc.w = 0, attribute.w, bonus.w
If power_id < 1 Or power_id >= #MAX_NUMBER_OF_POWERS
error_message("power_strength_random_part(): wrong power id: " + Str(power_id))
EndIf
If power_db(power_id)\strength_randomized = 1
rc = power_db(power_id)\randomized_strength_bonus
attribute = power_db(power_id)\randomized_strength_bonus_attribute
If attribute > 0 And attribute < #MAX_NUMBER_OF_ABILITIES
bonus = attribute_current_val(attribute)
If power_db(power_id)\randomized_strength_multiplier <> 1
bonus = bonus * power_db(power_id)\randomized_strength_multiplier
EndIf
If power_db(power_id)\randomized_strength_divisor > 1
bonus = Int(bonus / power_db(power_id)\randomized_strength_divisor)
EndIf
rc = rc + bonus
EndIf
EndIf
ProcedureReturn rc
EndProcedure
; returns randomized power effect strength for current character
Procedure.w power_strength_randomized(power_id.w)
Protected rc.w = 0
rc = power_strength_random_part(power_id)
If rc > 0
rc = Random(rc)
EndIf
rc = rc + power_strength(power_id)
;Debug Str(power_strength(power_id)) + " - " + Str(power_strength(power_id) + power_strength_random_part(power_id))
ProcedureReturn rc
EndProcedure
; sets cooldown for power
Procedure power_cooldown(power_id.w)
If power_db(power_id)\cooldown > 0
current_character\power[power_id]\cooldown = power_db(power_id)\cooldown
EndIf
EndProcedure
; plays sound effect for succcesful power usage; returns 1 if sound was found, else 0
Procedure.b power_success_sound(power_id.w)
Protected rc.b = 0
If power_db(power_id)\sound$ <> ""
play_sound(power_db(power_id)\sound$)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; plays sound effect for unsuccessful power usage; returns 1 if sound was found, else 0
Procedure.b power_failure_sound(power_id.w)
Protected rc.b = 0
If power_db(power_id)\failure_sound$ <> ""
play_sound(power_db(power_id)\failure_sound$)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; plays sound effect if power was used wrongly; returns 1 if sound was found, else 0
Procedure.b power_wrong_usage_sound(power_id)
Protected rc.b = 0
If power_db(power_id)\wrong_use_sound$ <> ""
play_sound(power_db(power_id)\wrong_use_sound$)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; displays message if power was used successfully; returns 1 if message was found, else 0
Procedure.b power_success_message(power_id)
Protected rc.b = 0, message$
If power_db(power_id)\success_message$ <> ""
message$ = ReplaceString(power_db(power_id)\success_message$, "[power_strength]", Str(power_strength(power_id)), #PB_String_NoCase)
message(message$, "", $ffffff, power_db(power_id)\tile, 2)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; displays message if power was used unsuccessfully; returns 1 if message was found, else 0
Procedure.b power_failure_message(power_id)
Protected rc.b = 0
If power_db(power_id)\failure_message$ <> ""
message(power_db(power_id)\failure_message$, "", $ffffff, power_db(power_id)\tile, 2)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; displays message if power was already used; returns 1 if message was found, else 0
Procedure.b power_already_used_message(power_id)
Protected rc.b = 0
If power_db(power_id)\already_used_message$ <> ""
message(power_db(power_id)\already_used_message$, "", $ffffff, power_db(power_id)\tile, 2)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; displays message if power was used wrongly; returns 1 if message was found, else 0
Procedure.b power_wrong_usage_message(power_id)
Protected rc.b
If power_db(power_id)\wrong_use_message$ <> ""
message(power_db(power_id)\wrong_use_message$, "", $ffffff, power_db(power_id)\tile, 2)
rc = 1
EndIf
ProcedureReturn rc
EndProcedure
; returns 1 if power is available to character, else 0
Procedure.b power_available(power_id.w, gain_attribute.w = 0, gain_bonus.w = 0)
Protected rc.b = 1, i.w = 0, attribute.w = 0, value.w = 0, current_attribute_value.w = 0
If power_db(power_id)\name$ = ""
rc = 0
EndIf
If rc = 1
For i=0 To #MAX_NUMBER_OF_POWER_REQUIREMENTS-1
attribute = power_db(power_id)\power_requirement[i]\attribute
value = power_db(power_id)\power_requirement[i]\value
If attribute > 0
current_attribute_value = attribute_current_val(attribute, 1, 0, 0)
If attribute = gain_attribute
current_attribute_value = current_attribute_value + gain_bonus
EndIf
If current_attribute_value < value
rc = 0
EndIf
EndIf
Next
EndIf
ProcedureReturn rc
EndProcedure
; returns success chance for power for current character
Procedure power_success_chance(power_id.w)
Protected rc.w = 100, attribute.w
If power_id < 1 Or power_id >= #MAX_NUMBER_OF_POWERS
error_message("power_success_chance(): wrong power id: " + Str(power_id))
EndIf
attribute = power_db(power_id)\success_attribute
If attribute > 0 And attribute < #MAX_NUMBER_OF_ABILITIES
rc = attribute_current_val(attribute)
If power_db(power_id)\success_attribute_multiplier > 1
rc = rc * power_db(power_id)\success_attribute_multiplier
EndIf
If power_db(power_id)\success_attribute_divisor > 1
rc = Int(rc / power_db(power_id)\success_attribute_divisor)
EndIf
rc = rc + power_db(power_id)\success_bonus
EndIf
ProcedureReturn rc
EndProcedure
; attack via power
Procedure power_attack(power_id.w)
Protected cursor.cursor_struct, attack.b = 0, *attacked_monster, damage.w, x1.w, y1.w
Protected success_chance.w, x.w, y.w, i.w, monster_type.w, text$
reset_cursor(@cursor)
cursor_select_field(@cursor)
If cursor\esc <> 1
ForEach monster()
If monster()\xpos = current_character\xpos - 6 + cursor\x And monster()\ypos = current_character\ypos - 6 + cursor\y
attack = 1
*attacked_monster = @monster()
EndIf
Next
EndIf
If attack = 1
animation(power_db(power_id)\animation$, cursor\x, cursor\y)
success_chance = power_success_chance(power_id)
If Random(99) >= success_chance
attack = 0
power_failure_sound(power_id)
power_failure_message(power_id)
EndIf
EndIf
If attack = 1
ChangeCurrentElement(monster(), *attacked_monster)
x = monster()\xpos
y = monster()\ypos
monster_type = monster()\type
damage = power_strength_randomized(power_id)
damage = monster_adjust_damage(monster_type, damage, power_db(power_id)\class$, power_db(power_id)\affects_only_monster_class$)
power_success_message(power_id)
play_sound("hit")
ClearScreen(0)
draw_map_screen(@current_map)
draw_frame_main_screen()
draw_right_panel()
draw_character()
x1 = cursor\x * 32
y1 = cursor\y * 32
DisplayTransparentSprite(#SPRITE_BLOOD, x1, y1)
StartDrawing(ScreenOutput())
DrawingFont(#PB_Default)
text$ = Str(damage)
DrawingMode(#PB_2DDrawing_Transparent)
DrawText(x1 + 16 - TextWidth(text$)/2, y1 + 16 - TextHeight(text$)/2, text$, $ffffff, 0)
StopDrawing()
ChangeCurrentElement(monster(), *attacked_monster)
monster()\hitpoints = monster()\hitpoints - damage
kill_monster()
FlipBuffers()
Delay(250)
ClearScreen(0)
draw_map_screen(@current_map)
draw_frame_main_screen()
draw_right_panel()
draw_character()
FlipBuffers()
Delay(250)
EndIf
EndProcedure
; area attack via power
Procedure power_area_attack(power_id)
Protected *current_monster, monster_type.w, damage.w
animation(power_db(power_id)\animation$)
ResetList(monster())
While NextElement(monster())
*current_monster = @monster()
monster_type = monster()\type
If monster()\xpos >= current_character\xpos - 6 And monster()\xpos <= current_character\xpos + 6 And monster()\ypos >= current_character\ypos - 6 And monster()\ypos <= current_character\ypos + 6
damage = power_strength_randomized(power_id)
damage = monster_adjust_damage(monster_type, damage, power_db(power_id)\class$, power_db(power_id)\affects_only_monster_class$)
ChangeCurrentElement(monster(), *current_monster)
play_sound("hit")
animation("red cloud", monster()\xpos + 6 - current_character\xpos, monster()\ypos + 6 - current_character\ypos, damage)
ChangeCurrentElement(monster(), *current_monster)
monster()\hitpoints = monster()\hitpoints - damage
EndIf
Wend
kill_monster()
EndProcedure
; creates an effect with duration
Procedure power_duration_effect(power_id.w)
Protected adjustment.w, duration.w = 0, duration_bonus.w = 0, attribute.w
If power_db(power_id)\adjust_attribute > 0
If Random(99) >= power_success_chance(power_id)
power_failure_sound(power_id)
power_failure_message(power_id)
Else
attribute = power_db(power_id)\adjust_attribute
adjustment = power_strength(power_id)
duration = power_db(power_id)\duration
If power_db(power_id)\duration_bonus_attribute > 0
duration_bonus = attribute_current_val(power_db(power_id)\duration_bonus_attribute)
EndIf
If power_db(power_id)\duration_multiplier > 1
duration_bonus = duration_bonus * power_db(power_id)\duration_multiplier
EndIf
If power_db(power_id)\duration_divisor > 1
duration_bonus = Int(duration_bonus / power_db(power_id)\duration_divisor)
EndIf
current_character\ability[attribute]\power_adjustment = adjustment
current_character\ability[attribute]\adjustment_duration = duration + duration_bonus
current_character\ability[attribute]\adjustment_name$ = power_db(power_id)\name$
current_character\ability[attribute]\adjustment_power_id = power_id
current_character\ability[attribute]\adjustment_item_id = 0
animation(power_db(power_id)\animation$)
power_success_sound(power_id)
power_success_message(power_id)
power_cooldown(power_id)
EndIf
EndIf
EndProcedure
; modifies an attribute value; returns amount by which attribute was increased/decreased
Procedure.w power_modify_attribute(power_id.w, secondary_effect.b = 0)
Protected rc.w = 0
If power_db(power_id)\modify_attribute > 0
If secondary_effect = 0
animation(power_db(power_id)\animation$)
power_success_sound(power_id)
power_success_message(power_id)
EndIf
rc = modify_attribute(power_db(power_id)\modify_attribute, power_strength(power_id))
If rc <> 0 And secondary_effect = 0
power_cooldown(power_id)
EndIf
EndIf
ProcedureReturn rc
EndProcedure
; uses/transforms a field via power; returns 1 if power was used successfully, else 0
Procedure.b power_use_field(power_id.w, transformation.b = 0)
Protected cursor.cursor_struct, tile_type.w, x.w, y.w, class$, transforms_into.w, rc.b = 0
Protected success_chance.w
reset_cursor(@cursor)
cursor_select_field(@cursor, power_db(power_id)\range)
x = current_character\xpos - 6 + cursor\x
y = current_character\ypos - 6 + cursor\y
tile_type = read_map_tile_type(@current_map, x, y)
class$ = current_map\tileset\tile_type_db[tile_type]\class$
transforms_into = current_map\tileset\tile_type_db[tile_type]\transforms_into
success_chance = power_success_chance(power_id)
rc = 1
If compare_string_lists(power_db(power_id)\class$, class$) = 0
power_wrong_usage_sound(power_id)
power_wrong_usage_message(power_id)
rc = 0
EndIf
If rc = 1
If read_map_if_power_used(@current_map, x, y, power_db(power_id)\field_effect$) = 1
power_wrong_usage_sound(power_id)
power_already_used_message(power_id)
rc = 0
EndIf
EndIf
If rc = 1
animation(power_db(power_id)\animation$, cursor\x, cursor\y)
If Random(99) >= success_chance
power_failure_sound(power_id)
power_failure_message(power_id)
add_map_power_used(@current_map, x, y, power_db(power_id)\field_effect$)
rc = 0
EndIf
EndIf
If rc = 1
If transformation = 1
set_map_tile_type(current_map, x, y, transforms_into)
EndIf
power_success_sound(power_id)
power_success_message(power_id)
power_modify_attribute(power_id, 1)
power_cooldown(power_id)
add_map_power_used(@current_map, x, y, power_db(power_id)\field_effect$)
EndIf
ProcedureReturn rc
EndProcedure
; activates / deactivates an ability
Procedure power_activate_ability(power_id.w)
Protected ability_id.w = 0
If power_db(power_id)\activates_ability_id > 0
ability_id = power_db(power_id)\activates_ability_id
If current_character\ability[ability_id]\activated = 1
current_character\ability[ability_id]\activated = 0
Else
current_character\ability[ability_id]\activated = 1
EndIf
power_cooldown(power_id)
EndIf
EndProcedure
; depletes an attribute via power
Procedure power_deplete_attribute(power_id.w)
Protected attribute_id.w = 0
attribute_id = power_db(power_id)\deplete_attribute_id
If attribute_id > 0
animation(power_db(power_id)\animation$)
power_success_sound(power_id)
power_success_message(power_id)
update_abilities_adjustment_other()
current_character\ability[attribute_id]\attribute_current_value = 0
EndIf
EndProcedure
; applies an effect to a monster via power; returns 1 if successfull, else 0
Procedure power_apply_effect_to_monster(power_id.w)
Protected rc.b = 0, cursor.cursor_struct, *attacked_monster
reset_cursor(@cursor)
cursor_select_field(@cursor)
If cursor\esc <> 1
ForEach monster()
If monster()\xpos = current_character\xpos - 6 + cursor\x And monster()\ypos = current_character\ypos - 6 + cursor\y
rc = 1
*attacked_monster = @monster()
EndIf
Next
EndIf
If rc = 1
ChangeCurrentElement(monster(), *attacked_monster)