Reference · Engine

Bosses - Fidchell

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Fidchell (ccBoss04, boss04.cpp) is Outbreak's first phase boss: bossTbl row 3, bossFunc code 3, file x41. It is a ccBoss (the base is Skeith's page) running the base's Main, Move, ChangeAction and ChangeNextPattern with its own Think, Affect and ExecPatternIndex. It predicts one of four spells (its text and voice), lays that spell's skill on every member, then casts it. The names and layouts are Infection's DWARF (Infection's gcmn carries the class, never entered); the behaviour here is Outbreak's code, checked frame by frame against the port.

Where it comes from

Event 207 (M307), block 9 (in_field town=3 field=4): entry type=7 code=3 and battle_ready. Block 11 waits on absent type=7 code=3, then scene to town 3. ccThBoss04 (OUT 0x004a34b0) news a ccBoss04 (0x29580 bytes), runs its Main (the base's, vtable +0x1c) each frame until CheckExit, then sets its parameter's +0x14.

The class

ccBoss04 : ccBoss (0x29350)          size 0x29580
+0x29350 ccClump *clumpx, *clumpw    0 (never set)
+0x29360 PRED_TEXT m_predTxt         layer (254), anmText (ccAnm), pos, dirc
+0x294a0 ccAnm *anmw                 the wave (xeffect's ANM_xx11wave)
+0x294a4 ccIBossEff *m_effMagic      the effect a spell waits on
+0x294a8 ccIBossEff *m_effDead
+0x294ac ccBufferReverce *m_br       the ice's reversed layer (deleted, kept)
+0x294b0 ENTRYAFTERIMAGE_T m_eai     20 frames, alpha 100, 1.0 by -0.05
+0x29500 ccEffect *m_effStart        effSkillStart's controller
+0x29504 int actSubProccess, +0x29508 actSubCount    a spell's steps
+0x2950c int m_stageEffId, +0x29510 m_predId, +0x29514 m_reservePred
+0x29518 float m_rotZ, +0x2951c m_transparency       OnThinkTransfer's
+0x29520 int m_skillID
+0x29530 PREDICTION_T m_predInfo     camPos, camView, quakeSW, quakeOffset,
                                     transparency, actCount, revLayer
+0x29570 int m_patMode               0 normal, 1 super, 2 Epitaph

The constructor

ccBoss04::ccBoss04 (OUT 0x004a3590): SetBaseParam(row 3), boss0xAnmTbl; exit off, drawn, body hit and cheat HP on; at Kite's place 500 back on y and 10 up, his heading. ChangeAction(0, 0, 4), ccEntryCmnd, InitCenterPos (DMY_center01), InitStageEffect, InitBossCamera(250, 1500) and then bossCam->MaxRenge = 600 (Infection: InitBossCamera(200, 1500), the range left). The blur on, never ending, under ccBoss03BlurParamCB (its own pulsing, colour 0x48808080). Then the Normal table from its start: a reserved prediction would be cast at once (pattern 15), else patIndex = ExecPatternIndex(Normal, 0).

A frame

The base's Main (OUT 0x0046d490): CalcReal, CalcTargetInfo, the centre's distance and heading, stop's count, Think, the base's empty Action, the party held while lockPlayer (and the menu's forbid), Move, the boss camera's CamMain, the stage fader, PreDrawAnm (the clip on), the draws, the base's empty Slave, hold cleared. Outbreak's ccGetDist (main 0x001e6e70) takes the FPU's sqrt.s (truncating) where Infection's calls newlib's sqrtf.

Think (0x004a3f00), by act (26 cases, table 0x006dfc30; any other is ChangeAction(0, 0, 4)):

No pattern reaches 20, 21 or 23; 8 and 17 (the base's wander and return) fall to the default.

The patterns

ExecPatternIndex (0x004a40b0), the words of its own:

The rest are the base's (OUT 0x0046dd20: 2 wait, 3 escape, 4 chase, 6 a dash of d across the centre as act 7). The tables (Outbreak's; each to its -1):

Normal  0x00617c30: 2 60 | 4 | 1 | 2 90 | 17 | 3 | 10 0 | 2 60 | 1 | 6 1000 | 3 | 14 | 3 |
                    10 0 | 2 60 | 4 | 2 60 | 1 | 3 | 15 | 2 30 | 6 1000 | 2 90 | 4 | 2 90 |
                    1 | 2 120 | 17
Super   0x00617ce0: 2 60 | 16 | 3 | 17 | 2 30 | 10 0 | 2 90 | 6 1500 | 4 | 2 60 | 1 | 2 60 |
                    14 | 3 | 10 0 | 2 60 | 4 | 2 60 | 1 | 3 | 15 | 2 30 | 6 1000 | 2 90 |
                    4 | 2 90 | 1 | 2 120 | 17
Epitaph 0x00617da0: 2 60 | 6 1000 | 3 | 18 | 2 90 | 4 | 1 | 3 | 3 | 10 0 | 2 90 | 17 | 3 |
                    18 | 2 90 | 1 | 3 | 17 | 3 | 11 151 | 2 60 | 3
@1038 0x00617e20: ANM_ex41txt1, txt2, txt4, txt3     @1039 0x00617e30: 0 1 3 2
@1441 0x00617ec0: 171 170 173 169    @2048 0x00617ed0: 157 158 160
@2081 0x00617ee0: 227 219 203 259    @1272 0x00617ea8: 157 158 160 (unused)
boss0xAnmTbl 0x00617e40 (26): 0 ANM_ex41nut, 4 ANM_ex41act2, 12 ANM_ex4xnut,
                    13 ANM_ex4xact1, 14 ANM_ex4xdea0, the rest none

Infection's Normal and Super tables are longer (52 and 50 words): more back dashes and skills between the prediction (14) and its cast (15).

The prediction and the spell

OnThinkPrediction (act 3, 0x004a4cb0), a step each (actCount counted before the switch, the old count read):

1. At count 0: the nearest target (none: a wait of -1); locked, off the targets, the cursor off; camera 3 1500 behind the target's way from Fidchell and 50 up, looking at Fidchell 300 up; m_predId = ccSys.count & 3; cinema 64, 65, 67, 66 by it. At 45: SwitchLayer, the stage darkened (0x64000000, 15, 15, 30000).
2. At 15: ccEvVoiceStop.
3. The text @1038[m_predId] of x41 on its own layer, 1000 ahead of camera 3's eye; ccEvVoiceRequest(-40, @1039[m_predId]).
4. The text played to its end (turned by the camera); then camera 3 by OnMagicCamera 1500 off the nearest target, 100 up, looking 200 over it.
5. At 0: ccItemSkillCompel(this, member, @1441[m_predId], 0) on each member alive; at 60 on.
6. The stage back.
7. The count stepped twice a frame; at 15 (the first step's value): SwitchLayer, unlocked, on the targets, cursor on, camera 2 twice (OffMagicCamera(0)), cinema off, the next pattern.

OnThinkExecPrediction (act 5, 0x004a57e0): off the targets, locked (chat excepted), cinema 14, 15, 17, 16 by m_predId; the eye 1800 off Fidchell on the centre's line and 50 up, looking 300 over it (camera 3, or for the quake the boss camera's mode 5); Fidchell turned to the centre. At 30 ANM_ex41act1 with SEs 233, 196 and 196 (note 65) at 0, 45, 70 of its count; at its end, turned to the target, the stage darkened (0x7fff; not for the ice), the eye 2000 behind the target, looking 200 over it. Then the spell until it ends, the stage back, and a 15-frame fade in (m_predInfo.transparency +1/15) to camera 2 (the quake: mode 6), the layer back, unlocked, the next pattern.

Infection's OnThinkExecPrediction has no cinema, keeps camera 3 behind the target from the start, and leaves Fidchell's heading; its ice ends with ChangeNextPattern (a second one, Outbreak dropped it) and its SEs at Fidchell; its thunder storm moves camera 3 by OnMagicCamera (Outbreak computes the vectors and never calls it).

The other acts

• The wave (acts 4 and 13): ANM_xx11wave at speed 512; by the body's frame SE 223 at 25, SE 224 at 42 (35), from 44 (40) on the wave drawn, at 45 (40) the WaveShock and a flash, at 59 (55) boss skill 13 at Fidchell; a QuakeCam(15, 15, 15) each frame checkCameraShakeRange(pos) answers yes; the next pattern once both clips end.
• The member drain (act 6): locked, off the targets, cinema -1; at 45 menu 74 on stream 68 for the target's slot; once the menu closes, affect 13 on the target, unlocked, cinema off.
• The chase (act 18): at 100 toward where the target stood, off the targets, SE 57 (note 55); an after-image every fourth frame (SE 229 at the first); over within 200 or after 151 frames; out of the arena (IsValidArea), a dash of 500.
• The escape (act 16): at 100 (50 from frame 61) along whatever moveDirc was, for 150 frames while the target is within 1500; out of the arena after 30 a dash of 1500.
• The back dash (act 22): off the targets, at 150; each tenth frame 60 degrees either side of the camera's heading, with effSmoke dust; out of the arena to the centre; 31 frames. At frame 0 it turns to the camera's heading plus pi only when it is already out of the arena.
• The dash (act 7): the base's dash at 50 to dashPos, 121 frames at most, SE 229, then SE 57 (note 55) and 229 at 3.
• The skill (act 24): camera 3 1000 off the target at 200 high, one of @2048 by ccRand() % 3, effSkillStart, locked, the skill's cinema (OnCinemaMode with a skill id, OUT 0x004733b0); after 30 frames and the start's endFlag, ccItemSkillCompel(this, target, sid, 0); 65 frames on, camera 2.
• The spell (act 25): the stage darkened (3000), camera 3 as the skill's, @2081[ccSys.count & 3] with its cinema; at 60 ccItemSkillRequest(this, target, sid, a3) (a3 as the frame left it: the harness measures 1); the stage back 60, 150 or 90 frames on (227; 203, 219; 259); 15 on, camera 2.
• The transfer (act 21, unreached): fade out spinning (pi/5 a frame), to the centre 1000 up, a force generator (16 photons, 120, CLUT 5), down as it fades in, then act 0. Its second turn test is against pi, not -pi.
• Death (act 14): off the lists, BeginDeadEffect(2000, 2000); exit once the dead effect and the clip end.

Hits and the drain

Affect (0x004a3d00) is the base's (a hit's HP a tenth under cheat HP, never below half; 13 to act 11; 21 to a tenth, the gauge -1), then: 21 sets HP and max HP to 5000; a hit (1 or 3) in the normal table with the gauge at half maxPP or more starts the Super table (m_patMode 1). Act 11 (OnThinkDrain, 0x004a4b70): cheat HP off, the Epitaph table (m_patMode 2), act 12 (epitaph set). A prediction reserved at either switch is cast at once.

The spells' effects

The boss waits on m_effMagic->m_bEnabled; the manager's Draw runs each effect before the boss's task.

• ccBossEffMeteoSworm(sp, ep, n, radius, v, &camView) (0x0047d290, Draw 0x0047d800): for all but the last meteor an end ccRandF(radius) off ep at ccRandF(pi), a pull 2 + |ccRandF(2)| (in doubles), a wait (ccRand() & 31) + 31; the last straight to ep, pull 3, wait 31. A meteor (ccBossEffMeteo2, Init 0x0047dab0, Move 0x0047df80) flies from sp at v along the pitch and heading to its end, the pull added each step, and lands at or under its end's height (effSmokeRock, two ccParticleExplode, SEs 35 and 40). Each meteor's first step plays SE 57 if its index is a multiple of 8. The last carries an omni light and writes the boss's m_predInfo.camView (200 over it). Done when none waits or flies.
• ccBossEffThunderStorm(pos, radius, n) (0x0047efd0, Draw 0x0047f290; the Create plays SE 41 note 67 first): n bolts (ccBossEffThunder2, 10 ccRand each) radius round pos at ccRandF(pi), waiting (k / 3) * 5 + 15; each starts with SE 68 (odd ones SE 41 note 67 too). A bolt grows a segment a Draw (16 ccRandF and a ccRand a segment), strikes at the ninth (Shock: a flare, four radiating rocks, five bursts; 16 draws; SE 35 for odd bolts), fades 1/15 a Draw and 31 Draws after. The first bolt gone brings magic square 1 and five more rumbles (SE 68, note 63 - (ccRand() & 7)) at 4, 23, 39, 48 and 57; done 85 frames after it once all are gone.
• ccBossEffRockTower(pos, n) (0x0047fcd0, Draw 0x004800f0): each tower ccRandF(400) off pos at ccRandF(pi), 1000 under, scaled 1 + ccRandF(0.5), turned ccRandF(pi), waiting (5k >> 2) + 15; it rises 33.3 a frame to 100 under (effSmoke, effRadiateSomething2 with a ccRandF(pi)) and fades 1/15. From its 31st Draw, every twelfth a rumble (SE 56, note (|ccRand()| & 7) + 60). Done once every tower is gone.
• The magic squares live 91 Draws (n 0, 2) or 71 (n 1); the force generators life + (num - 1) / 2 * 10 + 3 (133 and 193); the ring 20, the ice 123, the WaveShock 45, the dead effect 120 (boss.md).

The spells' pictures

Each Draw above also draws, on the effect layer (the manager's SetActiveLayer(3)):

• A meteor (ccBossEffMeteo2::Draw 0x0047dd80, after its Move): the matrix RotY(m_rotLight), RotZ(pi/2), RotY(pitch), RotZ(heading), RotZ(-pi/2), then its place. At it m_anmFire (particle's ANM_x300, stepped, set again at its end) and the glow m_cmpLight (CMP_x100); m_rotLight then turns by pi/30. The swarm's light (a ccOmniLight, ccSetColor(0x80ffffff, 1.0): red, a little blue; intensity 1, full to 0, nothing past 500) sits at the last meteor, in the light group from the constructor until that meteor has landed.
• A bolt (ccBossEffThunder2::Draw 0x0047e9a0): ten points, the top 1000 up over its place, its place the last; each Draw sets the eight between, point k+1 (ccRandF(100), 0, -100 (k + 1)) turned by ccRandF(pi) from the top. For each segment grown so far, from point s to s+1 (through ccTransPosW2P): CMP_x012 (its CLUT set to @4154[0] "CLT_x012", its own) scaled (3, length / 900, 3), turned RotZ(-pi/2), RotY(pitch), RotZ(heading), RotZ(-pi/2), at point s, at the bolt's transparency; then EFF_x011 (CLT_x011c2) at point s, 3 wide, 0.025 of the length tall, turned by pitch less pi/2, the pattern ccRand() % patNum. The strike's calls are effFlareRing(pos 10 up, 2), four effRadiateSomething2(pos, (-pi/2, 0, ccRandF(pi)), 45, 4, 4) and five ccParticleExplode(pos, (ccRandF(10), ccRandF(10), 10 (ccRand() & 1)), 1, 5.0).
• A tower (ccBossEffRockTower::Draw 0x004800f0): every tower each Draw, before it moves: CMP_x101b (the constructor's "abcd"[1]) at SetMatrix_PosRotZYXScale(pos, (0, 0, turn), scale) at its transparency. A tower out of the ground makes effSmoke(pos, 0, 10, 60, 114, 512, 32) and effRadiateSomething2(pos, (-pi/2, 0, ccRandF(pi)), 45, 4, 4).
• A landing (Move): effSmokeRock(pos, (-pi/2, 0, 0), 45, 2, 1, -1) and ccParticleExplode(pos, (0, 0, 10), 1, 5.0), then at 15 up.
• The magic squares (ccBossEffMagicSquareCreate 0x00489820): n 1 plays SE 68 at pos in fields 4-8, else SE 41 at note 57, starts MagicSquareGenerator row 2 (force fields 3, 4) 350 up and makes ccBossEffLight(pos, 1, 60, 10); n 2 plays SE 35 at note 48, starts rows 6 (fields 8, 7) and 5 (6, 10, 9) and makes ccBossEffLight(pos, 2, 80, 10). The light (Draw 0x00478260) by its mode: 1 faces the camera's heading (a ccRandF(0.5) tilt drawn and lost), counts, and is grey (0x555555, its light moved) every third Draw and orange (0xffab44) between; 2 swings 200 out tilted by -1.5393804 at the camera's heading, which after 15 Draws falls behind by 0.6 a Draw, and pulses red as mode 0 pulses blue.
• ccSetColor(out, c, s) (main 0x00136f90): with no alpha byte r, g, b over 255; with one, an HSV colour (hue the low byte in sixths of 256, saturation and value the next two), w kept. Mode 0 and 2's colour goes to it through an inline cvt.w.s on Outbreak (Infection's fptoui gives 0 for a negative count): a falling count below 0 is a colour with an alpha byte, a grey.

The prediction's text, its voice and the skills' names

• The text (m_predTxt, step 3 at 0x004a51e0): anmText is x41's ANM_ex41txtN with SetRenderState(CCRS_ZENABLE, 0), stepped and drawn each frame with ccLayer::active its own layer (254 on sysLayer's view, made in the constructor at 0x004a361c). Its pos and dirc are written, never read: the animation's own camera (F_Camera) places it, so it stands on the screen.
• The voice: ccEvVoiceStop() at step 1, then ccEvVoiceRequest(-40, @1039[m_predId]) at step 2: event -40 is a field voice group (ccVoiceRequest), Fidchell's lines.
• A skill's name (OnCinemaMode with a skill 0x004733b0, CinemaOn 0x0047c0a0): OUT 0x00472550 picks a row by game.field (+0x24) and skill, null where the row has no file or texture, and SetupSkillName (0x0047bed0, as Infection's) shows it. Field 4's rows are Fidchell's: 157, 158, 160 (@2048) and 227, 219, 203, 259 (@2081); fields 2, 5, 6, 7 and 8 have rows of their own.

In the port

piney_battle::boss::fidchell (Class::Fidchell) is the rules; fidchell::eff the three spells as the rules keep them (EffKind:: MeteoSworm, ThunderStorm, RockTower: their lives, ccRand draws, sounds, the meteor's camera view, and what each Draw drew: a meteor moved, a bolt's points, segments, transparency and patterns' draws, a tower's place and transparency before it moved). They run on a small eff::Host (ccRand, the frame, ccGetDist, the calls): the boss's Cx in the fight. The tables are the combat group's fidchell_* entries (data version 16) and cinema_skill_rows (17: OUT 0x00472550 run in eemu by piney-gen for fields 0-31 and skills under 512). The base's Main is ported with Outbreak's ccGetDist (sqrt_of: sqrt.s on Outbreak and Quarantine); the skill damage's range test takes it too. New Outs: Fidchell(Pic) (the text, voices, dust, a meteor's landing, rocks, a bolt's strike), CinemaSkill and CamMaxRange; CamView.shake is checkCameraShakeRange of the boss's place. Camera 3's eye and view are kept by the rules (Fidchell::cam3), which its own cameraGetPos(3) and cameraGetView(3) read back. effSkillStart's controller is taken to end 8 frames on (SKILL_START_LIFE).

In the field (piney_world::combat::boss, code FIDCHELL): x41's CMP_trall1, and CMP_trallx under the Epitaph's ANM_ex4x* clips; the boss camera InitBossCamera(250, 1500) with MaxRenge 600; the cinema's names from x41's TEX_fid_skl (rows 14-17, 64-67), and a skill's from cinema_skill_rows for the fight's field (BossLook::skill_names). The text is a piney_desktop::anm::Anm (zenable off) set from Pic::Text, drawn on layer 254 through the frame's view and its own camera. The voice goes to the event voice path (Event::Voice { event: -40, .. }, Event::VoiceStop).

The pictures are piney-effect's fidchell (in boss::BossEffects, a BossEff::Spell): after the boss's task (FxTasks::boss_shows) each spell in the boss's effect slots is drawn from its rules' state (sync_spells); the rules' Pics (dust, landings, strikes, towers' rocks) are started as the effects' starters. The magic squares 1 and 2 and the lights' modes 1 and 2 are piney-effect's boss, with ccSetColor's HSV and the volume's float conversion. A boss's (and a gomora's) Out::SkillStart is effSkillStart(who, sid, 0, 0). Beside the game's order: the pictures' own draws of ccRand (a mode-1 light's) come in the effects' pass before the boss's, and a storm's magic square is made after its Draw, its first Draw a frame later.

Checks

tools/test_battle_fidchell_rs.py (PINEY_VOLUME=outbreak) builds the game's ccBoss04 and runs the base's Main natively against battle_probe's fidchell, the three spells' effects natively too: 40 cases (125,426 frames) agree on the acts, movement, place, target, HP, gauge, flags, clips, every own member, the camera's range, the effects' slots, the party, the calls, the menu, rand() and ccRand's index; acts 0, 3-7, 12-14, 16, 18, 22, 24 and 25 and all four spells are reached. test_effect_lives runs the stand-ins' Creates and Draws natively (nine lives). boss::fidchell::tests hold the constructor, the prediction and its spell, each spell, the Super table and the drain to death. Under the story pilot (outbreak_story_survey, event 207, 120,000 frames with PINEY_SURVEY_GOD) the event ends done.

tools/test_boss_effect_rs.py's test_fidchells_spells (Outbreak's disc) runs the game's ccBossEffMeteoSwormCreate (50 meteors), ccBossEffThunderStormCreate (16 bolts), ccBossEffRockTowerCreate (128 towers) and ccBossEffMagicSquareCreate 1 (fields 4 and 2) and 2, then the manager's pass, against boss_probe (whose manager runs the rules itself): meteo 192, storm 312, tower 436, square 1 288 and square 2 184 frames agree on every draw, sound, generator, light (the swarm's with its intensity and fall-off), slot, rand() and genrand count. Skeith's cases now pass on Outbreak too. The session test session::tests::fidchell::fidchell_spells_show forces the prediction, each spell and a skill in the arena of event 207 (block 9) and sees the text drawn, the voice asked (-40), every spell's objects drawn, the skill's start and its cinema name; fidchell_shots (ignored) writes the frames.

Unknown

• The text's picture, the voice and the skills' names are not checked against the game's code frame by frame (the text's draw is the desktop ccAnm's, checked there; the names' rows are the game's own lookup).
• effSkillStart's controller's real end is not run with the boss; any end under 30 frames gives the same fight.
• Acts 20, 21 and 23 are reached by no pattern; the transfer is ported but unchecked.