4 * Created on: Aug 5, 2012
8 #include "BattleState.h"
10 #include "PartyLayout.h"
11 #include "states/SelectMoveAction.h"
12 #include "states/PerformAttacks.h"
13 #include "../app/Application.h"
14 #include "../app/Input.h"
15 #include "../common/Ikari.h"
16 #include "../common/Inventory.h"
17 #include "../common/Item.h"
18 #include "../common/Spell.h"
19 #include "../geometry/operators.h"
20 #include "../graphics/Frame.h"
21 #include "../graphics/Sprite.h"
27 using app::Application;
29 using common::Inventory;
32 using geometry::Point;
33 using geometry::Vector;
40 void BattleState::AddMonster(const Monster &m) {
41 if (monsters.size() >= monstersLayout->NumPositions()) {
42 throw std::overflow_error("too many monsters for layout");
44 monsters.push_back(m);
47 void BattleState::AddHero(const Hero &h) {
48 if (numHeroes >= 4 || numHeroes >= (int)heroesLayout->NumPositions()) {
49 throw std::overflow_error("too many heroes for layout");
51 heroes[numHeroes] = h;
55 void BattleState::NextHero() {
57 while (activeHero < numHeroes && heroes[activeHero].Health() == 0) {
62 void BattleState::SwapHeroes(int lhs, int rhs) {
63 if (lhs < 0 || lhs >= numHeroes || rhs < 0 || rhs >= numHeroes || lhs == rhs) return;
64 std::swap(heroes[lhs], heroes[rhs]);
68 void BattleState::Resize(int w, int h) {
73 void BattleState::EnterState(Application &ctrl, SDL_Surface *screen) {
74 monstersLayout->CalculatePositions(background->w, background->h, monsterPositions);
75 heroesLayout->CalculatePositions(background->w, background->h, heroesPositions);
76 for (int i(0); i < 4; ++i) {
77 spellMenus[i] = res->spellMenuPrototype;
79 ikariMenus[i] = res->ikariMenuPrototype;
81 heroTags[i] = HeroTag(this, i);
82 smallHeroTags[i] = SmallHeroTag(this, i);
85 int tagHeight(attackTypeMenu.Height());
86 int tagWidth(attackTypeMenu.Width() * 2 + attackTypeMenu.Width() / 2);
87 int xOffset((Width() - 2 * tagWidth) / 2);
88 heroTagPositions[0] = Point<int>(xOffset, Height() - 2 * tagHeight);
89 heroTagPositions[1] = Point<int>(xOffset + tagWidth, Height() - 2 * tagHeight);
90 heroTagPositions[2] = Point<int>(xOffset, Height() - tagHeight);
91 heroTagPositions[3] = Point<int>(xOffset + tagWidth, Height() - tagHeight);
93 tagHeight = res->normalFont->CharHeight() * 4 + res->smallHeroTagFrame->BorderHeight() * 2;
94 tagWidth = res->normalFont->CharWidth() * 6 + res->smallHeroTagFrame->BorderWidth() * 2;
95 xOffset = (Width() - 4 * tagWidth) / 2;
96 int yOffset(Height() - tagHeight);
97 smallHeroTagPositions[0] = Point<int>(xOffset, yOffset);
98 smallHeroTagPositions[1] = Point<int>(xOffset + 2 * tagWidth, yOffset);
99 smallHeroTagPositions[2] = Point<int>(xOffset + tagWidth, yOffset);
100 smallHeroTagPositions[3] = Point<int>(xOffset + 3 * tagWidth, yOffset);
102 itemMenu = res->itemMenuPrototype;
106 void BattleState::LoadSpellMenu(vector<Hero>::size_type index) {
107 assert(index >= 0 && index < 4);
108 spellMenus[index].Clear();
109 spellMenus[index].Reserve(HeroAt(index).Spells().size());
110 for (vector<const Spell *>::const_iterator i(HeroAt(index).Spells().begin()), end(HeroAt(index).Spells().end()); i != end; ++i) {
111 bool enabled((*i)->CanUseInBattle() && (*i)->Cost() <= HeroAt(index).Mana());
112 spellMenus[index].Add((*i)->Name(), *i, enabled, 0, (*i)->Cost());
116 void BattleState::LoadIkariMenu(vector<Hero>::size_type index) {
117 assert(index >= 0 && index < 4);
118 ikariMenus[index].Clear();
119 ikariMenus[index].Reserve(6);
121 if (HeroAt(index).HasWeapon()) {
122 ikariMenus[index].Add(
123 HeroAt(index).Weapon()->Name(),
124 HeroAt(index).Weapon(),
125 HeroAt(index).Weapon()->HasIkari() && HeroAt(index).Weapon()->GetIkari()->Cost() <= HeroAt(index).IP(),
128 HeroAt(index).Weapon()->HasIkari() ? HeroAt(index).Weapon()->GetIkari()->Name() : "");
130 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->weaponMenuIcon);
133 if (HeroAt(index).HasArmor()) {
134 ikariMenus[index].Add(
135 HeroAt(index).Armor()->Name(),
136 HeroAt(index).Armor(),
137 HeroAt(index).Armor()->HasIkari() && HeroAt(index).Armor()->GetIkari()->Cost() <= HeroAt(index).IP(),
140 HeroAt(index).Armor()->HasIkari() ? HeroAt(index).Armor()->GetIkari()->Name() : "");
142 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->armorMenuIcon);
145 if (HeroAt(index).HasShield()) {
146 ikariMenus[index].Add(
147 HeroAt(index).Shield()->Name(),
148 HeroAt(index).Shield(),
149 HeroAt(index).Shield()->HasIkari() && HeroAt(index).Shield()->GetIkari()->Cost() <= HeroAt(index).IP(),
152 HeroAt(index).Shield()->HasIkari() ? HeroAt(index).Shield()->GetIkari()->Name() : "");
154 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->shieldMenuIcon);
157 if (HeroAt(index).HasHelmet()) {
158 ikariMenus[index].Add(
159 HeroAt(index).Helmet()->Name(),
160 HeroAt(index).Helmet(),
161 HeroAt(index).Helmet()->HasIkari() && HeroAt(index).Helmet()->GetIkari()->Cost() <= HeroAt(index).IP(),
164 HeroAt(index).Helmet()->HasIkari() ? HeroAt(index).Helmet()->GetIkari()->Name() : "");
166 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->helmetMenuIcon);
169 if (HeroAt(index).HasRing()) {
170 ikariMenus[index].Add(
171 HeroAt(index).Ring()->Name(),
172 HeroAt(index).Ring(),
173 HeroAt(index).Ring()->HasIkari() && HeroAt(index).Ring()->GetIkari()->Cost() <= HeroAt(index).IP(),
176 HeroAt(index).Ring()->HasIkari() ? HeroAt(index).Ring()->GetIkari()->Name() : "");
178 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->ringMenuIcon);
181 if (HeroAt(index).HasJewel()) {
182 ikariMenus[index].Add(
183 HeroAt(index).Jewel()->Name(),
184 HeroAt(index).Jewel(),
185 HeroAt(index).Jewel()->HasIkari() && HeroAt(index).Jewel()->GetIkari()->Cost() <= HeroAt(index).IP(),
188 HeroAt(index).Jewel()->HasIkari() ? HeroAt(index).Jewel()->GetIkari()->Name() : "");
190 ikariMenus[index].Add(res->noEquipmentText, 0, false, res->jewelMenuIcon);
194 void BattleState::LoadInventory() {
195 const Inventory &inv(*res->inventory);
197 itemMenu.Reserve(inv.MaxItems());
198 for (int i(0); i < inv.MaxItems(); ++i) {
199 const Item *item(inv.ItemAt(i));
201 itemMenu.Add(item->Name(), item, item->CanUseInBattle(), item->MenuIcon(), inv.ItemCountAt(i));
203 itemMenu.AddEmptyEntry();
209 void BattleState::ExitState(Application &ctrl, SDL_Surface *screen) {
213 void BattleState::ResumeState(Application &ctrl, SDL_Surface *screen) {
215 ctrl.PopState(); // quit the battle scene
219 // TODO: push victory state
224 // TODO: push defeat state
228 // TODO: this should not push a state while quitting
229 if (AttackSelectionDone()) {
230 ctrl.PushState(new PerformAttacks(this));
232 ctrl.PushState(new SelectMoveAction(this));
236 bool BattleState::Victory() const {
237 for (int i(0); i < MaxMonsters(); ++i) {
238 if (MonsterAt(i).Health() > 0) return false;
243 bool BattleState::Defeat() const {
244 for (int i(0); i < NumHeroes(); ++i) {
245 if (HeroAt(i).Health() > 0) return false;
250 void BattleState::PauseState(Application &ctrl, SDL_Surface *screen) {
257 OrderCompare(BattleState *battle) : battle(battle) { }
258 bool operator ()(const BattleState::Order &lhs, const BattleState::Order &rhs) {
259 int lagl(lhs.isMonster ? battle->MonsterAt(lhs.index).GetStats().Agility() : battle->HeroAt(lhs.index).GetStats().Agility());
260 int ragl(rhs.isMonster ? battle->MonsterAt(rhs.index).GetStats().Agility() : battle->HeroAt(rhs.index).GetStats().Agility());
267 void BattleState::CalculateAttackOrder() {
268 attackOrder.reserve(monsters.size() + NumHeroes());
269 for (int i(0); i < NumHeroes(); ++i) {
270 attackOrder.push_back(Order(i, false));
272 for (vector<Monster>::size_type i(0), end(monsters.size()); i < end; ++i) {
273 attackOrder.push_back(Order(i, true));
275 std::sort(attackOrder.begin(), attackOrder.end(), OrderCompare(this));
277 monsterAttacks.resize(monsters.size(), AttackChoice(this));
280 void BattleState::NextAttack() {
282 while (attackCursor < int(attackOrder.size())) {
283 if (attackOrder[attackCursor].isMonster) {
284 if (MonsterAt(attackOrder[attackCursor].index).Health() > 0) break;
286 if (HeroAt(attackOrder[attackCursor].index).Health() > 0) break;
292 bool BattleState::AttacksFinished() const {
293 return attackCursor >= int(attackOrder.size())
294 || Victory() || Defeat();
297 void BattleState::CalculateDamage() {
298 AttackChoice &ac(CurrentAttack().isMonster ? monsterAttacks[CurrentAttack().index] : AttackChoiceAt(CurrentAttack().index));
299 if (ac.GetType() == AttackChoice::DEFEND) return;
301 if (CurrentAttack().isMonster) {
302 const Stats &attackerStats(MonsterAt(CurrentAttack().index).GetStats());
303 // TODO: run monster's attack script
304 ac.SetType(AttackChoice::SWORD);
305 ac.Selection().SelectSingle();
306 ac.Selection().SelectHeroes();
307 for (int i(0); i < NumHeroes(); ++i) {
308 if (HeroAt(i).Health() > 0) {
309 const Stats &defenderStats(HeroAt(i).GetStats());
310 Uint16 damage(CalculateDamage(attackerStats, defenderStats));
311 ac.Selection().SetBad(0, damage);
316 const Stats &attackerStats(HeroAt(CurrentAttack().index).GetStats());
317 TargetSelection &ts(ac.Selection());
319 if (ts.TargetsEnemies()) {
320 for (int i(0); i < MaxMonsters(); ++i) {
321 if (ts.IsSelected(i)) {
322 if (MonsterAt(i).Health() > 0) {
323 const Stats &defenderStats(MonsterAt(i).GetStats());
324 Uint16 damage(CalculateDamage(attackerStats, defenderStats));
325 ts.SetBad(i, damage);
333 for (int i(0); i < MaxMonsters(); ++i) {
334 if (MonsterAt(i).Health() > 0) {
335 const Stats &defenderStats(MonsterAt(i).GetStats());
336 Uint16 damage(CalculateDamage(attackerStats, defenderStats));
337 ts.SetBad(i, damage);
342 for (int i(0); i < NumHeroes(); ++i) {
343 if (ts.IsSelected(i)) {
344 if (HeroAt(i).Health() > 0) {
345 const Stats &defenderStats(HeroAt(i).GetStats());
346 Uint16 damage(CalculateDamage(attackerStats, defenderStats));
347 ts.SetBad(i, damage);
355 for (int i(0); i < NumHeroes(); ++i) {
356 if (HeroAt(i).Health() > 0) {
357 const Stats &defenderStats(HeroAt(i).GetStats());
358 Uint16 damage(CalculateDamage(attackerStats, defenderStats));
359 ts.SetBad(i, damage);
367 Uint16 BattleState::CalculateDamage(const Stats &attacker, const Stats &defender) const {
368 // TODO: find out real formula and add some randomness
369 return attacker.Attack() / 2 - defender.Defense() / 4;
372 void BattleState::ApplyDamage() {
373 if (attackCursor < 0) return;
374 AttackChoice &ac(CurrentAttack().isMonster ? monsterAttacks[CurrentAttack().index] : AttackChoiceAt(CurrentAttack().index));
375 TargetSelection &ts(ac.Selection());
376 if (ts.TargetsEnemies()) {
377 for (int i(0); i < MaxMonsters(); ++i) {
379 MonsterAt(i).SubtractHealth(ts.GetAmount(i));
380 // TODO: collect reward if dead
384 for (int i(0); i < NumHeroes(); ++i) {
386 HeroAt(i).SubtractHealth(ts.GetAmount(i));
392 AttackChoice &BattleState::CurrentAttackAttackChoice() {
393 if (CurrentAttack().isMonster) {
394 return monsterAttacks[CurrentAttack().index];
396 return AttackChoiceAt(CurrentAttack().index);
400 void BattleState::ClearAllAttacks() {
403 for (int i(0); i < numHeroes; ++i) {
404 attackChoices[i] = AttackChoice(this);
407 monsterAttacks.clear();
411 void BattleState::HandleEvents(const Input &input) {
415 void BattleState::UpdateWorld(float deltaT) {
419 void BattleState::Render(SDL_Surface *screen) {
421 Vector<int> offset(CalculateScreenOffset(screen));
422 RenderBackground(screen, offset);
423 RenderMonsters(screen, offset);
426 void BattleState::RenderBackground(SDL_Surface *screen, const Vector<int> &offset) {
429 SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 0, 0, 0));
431 destRect.x = offset.X();
432 destRect.y = offset.Y();
433 destRect.w = background->w;
434 destRect.h = background->h;
435 SDL_BlitSurface(background, 0, screen, &destRect);
438 void BattleState::RenderMonsters(SDL_Surface *screen, const Vector<int> &offset) {
440 for (vector<Monster>::size_type i(0), end(monsters.size()); i < end; ++i) {
441 if (MonsterPositionOccupied(i)) {
442 // TODO: better solution for running animations
443 if (monsters[i].AttackAnimation() && monsters[i].AttackAnimation()->Running()) {
444 monsters[i].AttackAnimation()->DrawCenter(screen, monsterPositions[i] + offset);
445 } else if (monsters[i].SpellAnimation() && monsters[i].SpellAnimation()->Running()) {
446 monsters[i].SpellAnimation()->DrawCenter(screen, monsterPositions[i] + offset);
448 monsters[i].Sprite()->DrawCenter(screen, monsterPositions[i] + offset);
454 void BattleState::RenderHeroes(SDL_Surface *screen, const Vector<int> &offset) {
456 for (int i(0); i < numHeroes; ++i) {
457 if (heroes[i].AttackAnimation() && heroes[i].AttackAnimation()->Running()) {
458 heroes[i].AttackAnimation()->DrawCenter(screen, heroesPositions[i] + offset);
459 } else if (heroes[i].SpellAnimation() && heroes[i].SpellAnimation()->Running()) {
460 heroes[i].SpellAnimation()->DrawCenter(screen, heroesPositions[i] + offset);
462 int row(heroes[i].Health() > 0 ? 0 : 2);
463 heroes[i].Sprite()->DrawCenter(screen, heroesPositions[i] + offset, 1, row);
468 void BattleState::RenderHeroTags(SDL_Surface *screen, const Vector<int> &offset) {
470 int tagHeight(attackTypeMenu.Height());
471 int tagWidth(attackTypeMenu.Width() * 2 + attackTypeMenu.Width() / 2);
473 for (int i(0); i < numHeroes; ++i) {
474 heroTags[i].Render(screen, tagWidth, tagHeight, heroTagPositions[i] + offset, (int)i == activeHero);
478 void BattleState::RenderSmallHeroTags(SDL_Surface *screen, const Vector<int> &offset) {
480 int tagHeight(res->normalFont->CharHeight() * 4 + res->smallHeroTagFrame->BorderHeight() * 2);
481 int tagWidth(res->normalFont->CharWidth() * 6 + res->smallHeroTagFrame->BorderWidth() * 2);
485 rect.y = offset.Y() + Height() - tagHeight;
488 SDL_FillRect(screen, &rect, SDL_MapRGB(screen->format, 0, 0, 0));
489 rect.y += res->normalFont->CharHeight() / 8;
490 rect.h -= res->normalFont->CharHeight() / 4;
491 SDL_FillRect(screen, &rect, res->heroesBgColor);
493 for (int i(0); i < numHeroes; ++i) {
494 smallHeroTags[i].Render(screen, tagWidth, tagHeight, smallHeroTagPositions[i] + offset);