XEEN: Implement addHitPoints and spellFX methods

14 files changed, 217 insertions, 10 deletions

diff --git a/engines/xeen/character.cpp b/engines/xeen/character.cpp
index d95e061515..ea0f9f532e 100644
--- a/engines/xeen/character.cpp
+++ b/engines/xeen/character.cpp
@@ -876,6 +876,15 @@ bool Character::isDisabledOrDead() const {
 }
 
 /**
+ * Returns whether the given character has a dead condition
+ */
+bool Character::isDead() const {
+	Condition condition = worstCondition();
+
+	return condition >= DEAD && condition <= ERADICATED;
+}
+
+/**
  * Get the character's age
  */
 int Character::getAge(bool ignoreTemp) const {
@@ -1810,6 +1819,32 @@ int Character::makeItem(int p1, int itemIndex, int p3) {
 	return category;
 }
 
+/**
+ * Add hit points to a character
+ */
+void Character::addHitPoints(int amount) {
+	Interface &intf = *Party::_vm->_interface;
+	Common::fill(&intf._charFX[0], &intf._charFX[MAX_ACTIVE_PARTY], 0);
+	
+	if (!isDead()) {
+		int maxHp = getMaxHP();
+		if (_currentHp <= maxHp) {
+			_currentHp = MIN(_currentHp + amount, maxHp);
+			intf.spellFX(this);
+		}
+
+		if (_currentHp > 0)
+			_conditions[UNCONSCIOUS] = 0;
+
+		intf.drawParty(true);
+	}
+
+	Common::fill(&intf._charFX[0], &intf._charFX[MAX_ACTIVE_PARTY], 0);
+}
+
+/**
+ * Remove hit points fromo the character
+ */
 void Character::subtractHitPoints(int amount) {
 	SoundManager &sound = *Party::_vm->_sound;
 	_currentHp -= amount;
diff --git a/engines/xeen/character.h b/engines/xeen/character.h
index 77ab882305..f1243f1568 100644
--- a/engines/xeen/character.h
+++ b/engines/xeen/character.h
@@ -278,6 +278,8 @@ public:
 
 	bool isDisabledOrDead() const;
 
+	bool isDead() const;
+
 	int getAge(bool ignoreTemp = false) const;
 
 	int getMaxHP() const;
@@ -322,6 +324,8 @@ public:
 
 	int makeItem(int p1, int itemIndex, int p3);
 
+	void addHitPoints(int amount);
+
 	void subtractHitPoints(int amount);
 
 	bool hasSpecialItem() const;
diff --git a/engines/xeen/combat.cpp b/engines/xeen/combat.cpp
index 74e098cdd4..7cc2ab6b22 100644
--- a/engines/xeen/combat.cpp
+++ b/engines/xeen/combat.cpp
@@ -109,7 +109,7 @@ Combat::Combat(XeenEngine *vm): _vm(vm), _missVoc("miss.voc"), _pow1Voc("pow1.vo
 	_whosTurn = -1;
 	_itemFlag = false;
 	_monstersAttacking = false;
-	_combatMode = 0;
+	_combatMode = COMBATMODE_0;
 	_monsterIndex = 0;
 	_partyRan = false;
 	_monster2Attack = -1;
@@ -1883,7 +1883,6 @@ void Combat::multiAttack(int powNum) {
 	}
 
 	for (uint idx = 0; idx < party._activeParty.size(); ++idx) {
-		Character &c = party._activeParty[idx];
 		if (_shooting[idx]) {
 			if (map._isOutdoors) {
 				intf._outdoorList._attackImgs1[idx]._scale = 0;
diff --git a/engines/xeen/combat.h b/engines/xeen/combat.h
index cff9261b05..33309b243b 100644
--- a/engines/xeen/combat.h
+++ b/engines/xeen/combat.h
@@ -64,6 +64,10 @@ enum ShootType {
 	ST_0 = 0, ST_1 = 1
 };
 
+enum CombatMode {
+	COMBATMODE_0 = 0, COMBATMODE_1 = 1, COMBATMODE_2 = 2
+};
+
 class XeenEngine;
 class Character;
 class XeenItem;
@@ -108,7 +112,7 @@ public:
 	bool _rangeAttacking[MAX_NUM_MONSTERS];
 	int _gmonHit[36];
 	bool _monstersAttacking;
-	int _combatMode;
+	CombatMode _combatMode;
 	int _monsterIndex;
 	bool _partyRan;
 	int _whosSpeed;
diff --git a/engines/xeen/dialogs_spells.cpp b/engines/xeen/dialogs_spells.cpp
index 9a19ac2042..08828a0c8d 100644
--- a/engines/xeen/dialogs_spells.cpp
+++ b/engines/xeen/dialogs_spells.cpp
@@ -577,4 +577,71 @@ void CastSpell::loadButtons() {
 	addPartyButtons(_vm);
 }
 
+/*------------------------------------------------------------------------*/
+
+int SpellOnWho::show(XeenEngine *vm, int spellId) {
+	SpellOnWho *dlg = new SpellOnWho(vm);
+	int result = dlg->execute(spellId);
+	delete dlg;
+
+	return result;
+}
+
+int SpellOnWho::execute(int spellId) {
+	Combat &combat = *_vm->_combat;
+	EventsManager &events = *_vm->_events;
+	Interface &intf = *_vm->_interface;
+	Party &party = *_vm->_party;
+	Screen &screen = *_vm->_screen;
+	Spells &spells = *_vm->_spells;
+	Window &w = screen._windows[16];
+	Mode oldMode = _vm->_mode;
+	_vm->_mode = MODE_3;
+	int result = 999;
+
+	w.open();
+	w.writeString(ON_WHO);
+	w.update();
+	addPartyButtons(_vm);
+
+	while (result == 999) {
+		do {
+			events.updateGameCounter();
+			intf.draw3d(true);
+
+			do {
+				events.pollEventsAndWait();
+				if (_vm->shouldQuit())
+					return -1;
+
+				checkEvents(_vm);
+			} while (!_buttonValue && events.timeElapsed() < 1);
+		} while (!_buttonValue);
+
+		switch (_buttonValue) {
+		case Common::KEYCODE_ESCAPE:
+			result = -1;
+			spells.addSpellCost(*combat._oldCharacter, spellId);
+			break;
+
+		case Common::KEYCODE_F1:
+		case Common::KEYCODE_F2:
+		case Common::KEYCODE_F3:
+		case Common::KEYCODE_F4:
+		case Common::KEYCODE_F5:
+		case Common::KEYCODE_F6:
+			_buttonValue -= Common::KEYCODE_F1;
+			if (_buttonValue < (int)(combat._combatMode == 2 ? combat._combatParty.size() :
+					party._activeParty.size())) {
+				result = _buttonValue;
+			}
+			break;
+		}
+	}
+
+	w.close();
+	_vm->_mode = oldMode;
+	return result;
+}
+
 } // End of namespace Xeen
diff --git a/engines/xeen/dialogs_spells.h b/engines/xeen/dialogs_spells.h
index 6a9e43f416..660f2ef1de 100644
--- a/engines/xeen/dialogs_spells.h
+++ b/engines/xeen/dialogs_spells.h
@@ -73,6 +73,17 @@ public:
 	static int show(XeenEngine *vm, Character *&c);
 };
 
+class SpellOnWho : public ButtonContainer {
+private:
+	XeenEngine *_vm;
+
+	SpellOnWho(XeenEngine *vm) : ButtonContainer(), _vm(vm) {}
+
+	int execute(int spellId);
+public:
+	static int show(XeenEngine *vm, int spellId);
+};
+
 } // End of namespace Xeen
 
 #endif /* XEEN_DIALOGS_SPELLS_H */
diff --git a/engines/xeen/interface.cpp b/engines/xeen/interface.cpp
index cc027b8676..923eaeac0b 100644
--- a/engines/xeen/interface.cpp
+++ b/engines/xeen/interface.cpp
@@ -149,6 +149,7 @@ Interface::Interface(XeenEngine *vm) : ButtonContainer(), InterfaceMap(vm),
 	_face1State = _face2State = 0;
 	_upDoorText = false;
 	_tillMove = 0;
+	Common::fill(&_charFX[0], &_charFX[MAX_ACTIVE_PARTY], 0);
 
 	initDrawStructs();
 }
@@ -1891,7 +1892,7 @@ void Interface::doCombat() {
 	bool reloadMap = false;
 	
 	_upDoorText = false;
-	combat._combatMode = 2;
+	combat._combatMode = COMBATMODE_2;
 	_vm->_mode = MODE_COMBAT;
 
 	_iconSprites.load("combat.icn");
@@ -2182,7 +2183,7 @@ void Interface::doCombat() {
 			DIR_EAST : DIR_SOUTH;
 	}
 
-	combat._combatMode = 1;
+	combat._combatMode = COMBATMODE_1;
 }
 
 /**
@@ -2262,4 +2263,53 @@ void Interface::nextChar() {
 	}
 }
 
+void Interface::spellFX(Character *c) {
+	Combat &combat = *_vm->_combat;
+	EventsManager &events = *_vm->_events;
+	Party &party = *_vm->_party;
+	Screen &screen = *_vm->_screen;
+	SoundManager &sound = *_vm->_sound;
+
+	// Ensure there's no alraedy running effect for the given character
+	uint charIndex;
+	for (charIndex = 0; charIndex < party._activeParty.size(); ++charIndex) {
+		if (&party._activeParty[charIndex] == c)
+			break;
+	}
+	if (charIndex == party._activeParty.size() || _charFX[charIndex])
+		return;
+
+	if (screen._windows[12]._enabled)
+		screen._windows[12].close();
+
+	if (combat._combatMode == COMBATMODE_2) {
+		for (uint idx = 0; idx < combat._combatParty.size(); ++idx) {
+			if (combat._combatParty[idx]->_rosterId == c->_rosterId) {
+				charIndex = idx;
+				break;
+			}
+		}
+	}
+
+	int tillMove = _tillMove;
+	_tillMove = 0;
+	sound.playFX(20);
+
+	for (int frameNum = 0; frameNum < 4; ++frameNum) {
+		events.updateGameCounter();
+		_spellFxSprites.draw(screen, frameNum, Common::Point(
+			CHAR_FACES_X[charIndex], 150));
+
+		if (!screen._windows[11]._enabled)
+			draw3d(false);
+
+		screen._windows[0].update();
+		events.wait(screen._windows[11]._enabled ? 2 : 1);
+	}
+
+	drawParty(true);
+	_tillMove = tillMove;
+}
+
+
 } // End of namespace Xeen
diff --git a/engines/xeen/interface.h b/engines/xeen/interface.h
index f5e5cc34ee..24edf9d23d 100644
--- a/engines/xeen/interface.h
+++ b/engines/xeen/interface.h
@@ -119,6 +119,7 @@ public:
 	bool _upDoorText;
 	Common::String _screenText;
 	byte _tillMove;
+	int _charFX[6];
 public:
 	Interface(XeenEngine *vm);
 
@@ -145,6 +146,8 @@ public:
 	void assembleBorder();
 
 	void doCombat();
+
+	void spellFX(Character *c);
 };
 
 } // End of namespace Xeen
diff --git a/engines/xeen/resources.cpp b/engines/xeen/resources.cpp
index 5c76d29173..5893403ebd 100644
--- a/engines/xeen/resources.cpp
+++ b/engines/xeen/resources.cpp
@@ -1528,4 +1528,6 @@ const char *const GIVE_TREASURE_FORMATTING =
 
 const char *const X_FOUND_Y = "\v060\t000\x03c%s found: %s";
 
+const char *const ON_WHO = "\x3""c\v009On Who?";
+
 } // End of namespace Xeen
diff --git a/engines/xeen/resources.h b/engines/xeen/resources.h
index c98db7f0f9..b908d91cf9 100644
--- a/engines/xeen/resources.h
+++ b/engines/xeen/resources.h
@@ -539,6 +539,8 @@ extern const char *const GIVE_TREASURE_FORMATTING;
 
 extern const char *const X_FOUND_Y;
 
+extern const char *const ON_WHO;
+
 } // End of namespace Xeen
 
 #endif	/* XEEN_RESOURCES_H */
diff --git a/engines/xeen/scripts.cpp b/engines/xeen/scripts.cpp
index 4af7af1d6a..ec00327205 100644
--- a/engines/xeen/scripts.cpp
+++ b/engines/xeen/scripts.cpp
@@ -88,7 +88,6 @@ bool MirrorEntry::synchronize(Common::SeekableReadStream &s) {
 /*------------------------------------------------------------------------*/
 
 Scripts::Scripts(XeenEngine *vm) : _vm(vm) {
-	Common::fill(&_charFX[0], &_charFX[MAX_ACTIVE_PARTY], 0);
 	_whoWill = 0;
 	_itemType = 0;
 	_treasureItems = 0;
@@ -120,7 +119,7 @@ int Scripts::checkEvents() {
 	_var50 = false;
 	_whoWill = 0;
 	Mode oldMode = _vm->_mode;
-	Common::fill(&_charFX[0], &_charFX[MAX_ACTIVE_PARTY], 0);
+	Common::fill(&intf._charFX[0], &intf._charFX[MAX_ACTIVE_PARTY], 0);
 	//int items = _treasureItems;
 	
 	if (party._treasure._gold & party._treasure._gems) {
@@ -202,7 +201,7 @@ int Scripts::checkEvents() {
 	}
 
 	_v2 = 1;
-	Common::fill(&_charFX[0], &_charFX[6], 0);
+	Common::fill(&intf._charFX[0], &intf._charFX[6], 0);
 
 	return _scriptResult;
 }
diff --git a/engines/xeen/scripts.h b/engines/xeen/scripts.h
index 3a835d88b5..29de5b8b37 100644
--- a/engines/xeen/scripts.h
+++ b/engines/xeen/scripts.h
@@ -139,7 +139,6 @@ struct MirrorEntry {
 class Scripts {
 private:
 	XeenEngine *_vm;
-	int _charFX[6];
 	int _treasureItems;
 	int _lineNum;
 	int _charIndex;
diff --git a/engines/xeen/spells.cpp b/engines/xeen/spells.cpp
index 53c43b5233..d446b3ce6e 100644
--- a/engines/xeen/spells.cpp
+++ b/engines/xeen/spells.cpp
@@ -21,6 +21,7 @@
  */
 
 #include "xeen/spells.h"
+#include "xeen/dialogs_spells.h"
 #include "xeen/files.h"
 #include "xeen/resources.h"
 #include "xeen/xeen.h"
@@ -95,6 +96,16 @@ void Spells::executeSpell(int spellId) {
 	(this->*SPELL_LIST[spellId])();
 }
 
+/**
+ * Spell being cast failed
+ */
+void Spells::spellFailed() {
+	ErrorScroll::show(_vm, SPELL_FAILED, WT_NONFREEZED_WAIT);
+}
+
+/**
+ * Cast a spell associated with an item
+ */
 void Spells::castItemSpell(int spellId) {
 	if (_vm->_mode == MODE_COMBAT) {
 		if (spellId == 15 || spellId == 20 || spellId == 27 || spellId == 41
@@ -233,7 +244,26 @@ void Spells::magicArrow() {
 	combat.multiAttack(11);
 }
 
-void Spells::firstAid() { error("TODO: spell"); }
+void Spells::firstAid() {
+	Combat &combat = *_vm->_combat;
+	Party &party = *_vm->_party;
+	SoundManager &sound = *_vm->_sound;
+
+	int charIndex = SpellOnWho::show(_vm, MS_FirstAid);
+	if (charIndex == -1)
+		return;
+
+	Character &c = combat._combatMode == 2 ? *combat._combatParty[charIndex] :
+		party._activeParty[charIndex];
+
+	if (c.isDead()) {
+		spellFailed();
+	} else {
+		sound.playFX(30);
+		c.addHitPoints(6);
+	}
+}
+
 void Spells::flyingFist() { error("TODO: spell"); }
 void Spells::energyBlast() { error("TODO: spell"); }
 void Spells::sleep() { error("TODO: spell"); }
diff --git a/engines/xeen/spells.h b/engines/xeen/spells.h
index af52511efa..2f79670df0 100644
--- a/engines/xeen/spells.h
+++ b/engines/xeen/spells.h
@@ -69,6 +69,8 @@ private:
 
 	void executeSpell(int spellId);
 
+	void spellFailed();
+
 	// Spell list
 	void light();
 	void awaken();