sm64

A Super Mario 64 decompilation
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haunted_chair.inc.c (4517B)

      1 // haunted_chair.inc.c
      2 
      3 struct ObjectHitbox sHauntedChairHitbox = {
      4     /* interactType:      */ INTERACT_MR_BLIZZARD,
      5     /* downOffset:        */ 0,
      6     /* damageOrCoinValue: */ 2,
      7     /* health:            */ 0,
      8     /* numLootCoins:      */ 0,
      9     /* radius:            */ 50,
     10     /* height:            */ 50,
     11     /* hurtboxRadius:     */ 50,
     12     /* hurtboxHeight:     */ 50,
     13 };
     14 
     15 void bhv_haunted_chair_init(void) {
     16     struct Object *val04;
     17     f32 val00;
     18 
     19     val04 = cur_obj_find_nearest_object_with_behavior(bhvMadPiano, &val00);
     20 
     21     if (val04 != NULL && val00 < 300.0f) {
     22         o->parentObj = val04;
     23     } else {
     24         o->oHauntedChairUnkF4 = 1;
     25     }
     26 }
     27 
     28 void haunted_chair_act_0(void) {
     29     if (o->parentObj != o) {
     30         if (o->oHauntedChairUnk104 == 0) {
     31             if (lateral_dist_between_objects(o, o->parentObj) < 250.0f) {
     32                 s16 val0E = obj_angle_to_object(o, o->parentObj) - o->oFaceAngleYaw + 0x2000;
     33 
     34                 if (val0E & 0x4000) {
     35                     o->oHauntedChairUnk100 = &o->oFaceAngleRoll;
     36 
     37                     if (val0E > 0) {
     38                         o->oHauntedChairUnk104 = 0x4000;
     39                     } else {
     40                         o->oHauntedChairUnk104 = -0x4000;
     41                     }
     42                 } else {
     43                     o->oHauntedChairUnk100 = &o->oFaceAnglePitch;
     44 
     45                     if (val0E < 0) {
     46                         o->oHauntedChairUnk104 = 0x5000;
     47                     } else {
     48                         o->oHauntedChairUnk104 = -0x4000;
     49                     }
     50                 }
     51 
     52                 if (o->oHauntedChairUnk104 < 0) {
     53                     o->oHauntedChairUnkF8 = -1500.0f;
     54                 } else {
     55                     o->oHauntedChairUnkF8 = 1500.0f;
     56                 }
     57             }
     58         } else {
     59             oscillate_toward(o->oHauntedChairUnk100, &o->oHauntedChairUnkF8, o->oHauntedChairUnk104,
     60                              4000.0f, 20.0f, 2.0f);
     61         }
     62     } else if (o->oHauntedChairUnkF4 != 0) {
     63         if (o->oDistanceToMario < 500.0f) {
     64             o->oHauntedChairUnkF4--;
     65         }
     66 
     67         o->oTimer = 0;
     68     } else {
     69         if (o->oTimer & 0x8) {
     70             f32 val08;
     71 
     72             if (o->oFaceAnglePitch < 0) {
     73                 cur_obj_play_sound_2(SOUND_GENERAL_HAUNTED_CHAIR_MOVE);
     74                 val08 = 4.0f;
     75             } else {
     76                 val08 = -4.0f;
     77             }
     78 
     79             o->oHomeX -= val08;
     80             o->oHomeZ -= val08;
     81 
     82             o->oFaceAnglePitch = o->oFaceAngleRoll = (s32)(50.0f * val08);
     83         } else {
     84             o->oFaceAnglePitch = o->oFaceAngleRoll = 0;
     85         }
     86 
     87         if (o->oTimer > 30) {
     88             o->oAction = 1;
     89 
     90             o->oHauntedChairUnkF8 = 0.0f;
     91             o->oHauntedChairUnkFC = 200.0f;
     92             o->oHauntedChairUnkF4 = 40;
     93         }
     94     }
     95 
     96     cur_obj_push_mario_away_from_cylinder(80.0f, 120.0f);
     97 }
     98 
     99 void haunted_chair_act_1(void) {
    100     cur_obj_update_floor_and_walls();
    101 
    102     if (o->oTimer < 70) {
    103         if (o->oTimer < 50) {
    104             o->oVelY = 6.0f;
    105         } else {
    106             o->oVelY = 0.0f;
    107         }
    108 
    109         o->oGravity = 0.0f;
    110 
    111         oscillate_toward(&o->oFaceAnglePitch, &o->oHauntedChairUnkF8, -4000, 200.0f, 20.0f, 2.0f);
    112         oscillate_toward(&o->oFaceAngleRoll, &o->oHauntedChairUnkFC, 0, 0.0f, 20.0f, 1.0f);
    113     } else {
    114         if (o->oHauntedChairUnkF4 != 0) {
    115             if (--o->oHauntedChairUnkF4 == 0) {
    116                 cur_obj_play_sound_2(SOUND_GENERAL_HAUNTED_CHAIR);
    117 
    118                 o->oMoveAnglePitch = obj_turn_pitch_toward_mario(120.0f, 0);
    119                 o->oMoveAngleYaw = o->oAngleToMario;
    120 
    121                 obj_compute_vel_from_move_pitch(50.0f);
    122             } else if (o->oHauntedChairUnkF4 > 20) {
    123                 if (gGlobalTimer % 4 == 0) {
    124                     cur_obj_play_sound_2(SOUND_GENERAL_SWISH_AIR_2);
    125                 }
    126 
    127                 o->oFaceAngleYaw += 10000;
    128             }
    129         } else if (o->oMoveFlags & (OBJ_MOVE_MASK_ON_GROUND | OBJ_MOVE_HIT_WALL)) {
    130             obj_die_if_health_non_positive();
    131         }
    132     }
    133 
    134     obj_check_attacks(&sHauntedChairHitbox, o->oAction);
    135     cur_obj_move_standard(78);
    136 }
    137 
    138 void bhv_haunted_chair_loop(void) {
    139     if (!(o->activeFlags & ACTIVE_FLAG_IN_DIFFERENT_ROOM)) {
    140         switch (o->oAction) {
    141             case 0:
    142                 haunted_chair_act_0();
    143                 break;
    144             case 1:
    145                 haunted_chair_act_1();
    146                 break;
    147         }
    148 
    149         cur_obj_spin_all_dimensions(30.0f, 30.0f);
    150     }
    151 }