Decompile Enemy49

src/enemy.c

@@ -505,7 +505,7 @@ void (*const gEnemyFunctions[])(Entity* ent) = {
     [BOW_MOBLIN] = BowMoblin,
     [LAKITU] = Lakitu,
     [LAKITU_CLOUD] = LakituCloud,
-    [ENEMY_49] = Enemy49,
+    [TORCH_TRAP] = TorchTrap,
     [VAATI_REBORN_ENEMY] = VaatiRebornEnemy,
     [VAATI_PROJECTILE] = VaatiProjectile,
     [BALL_CHAIN_SOLIDER] = BallChainSoldier,

src/enemy/torchTrap.c

@@ -0,0 +1,156 @@
+#define NENT_DEPRECATED
+#include "entity.h"
+#include "enemy.h"
+#include "functions.h"
+
+typedef struct {
+    Entity base;
+    u8 filler[0xc];
+    u16 unk_74;
+    u16 filler2;
+    u16 unk_78;
+    u16 projectileTimer;
+    u16 unk_7c;
+    u8 filler3[0x2];
+    u16 unk_80;
+    u16 unk_82;
+    u16 unk_84;
+} TorchTrapEntity;
+
+void (*const gTorchTrapActions[])(TorchTrapEntity*);
+const u16 gTorchTrapTimerLengths[];
+const u16 gTorchTrapProjectileSpeeds[];
+
+extern Entity* gUnk_020000B0;
+
+bool32 sub_0803CFF0(TorchTrapEntity*);
+bool32 sub_0803CFD8(TorchTrapEntity*);
+void sub_0803D0B0(TorchTrapEntity*);
+void TorchTrap_Reset(TorchTrapEntity*);
+void TorchTrap_CreateProjectile(TorchTrapEntity*);
+
+void TorchTrap(Entity* this) {
+    gTorchTrapActions[this->action]((TorchTrapEntity*)this);
+}
+
+void TorchTrap_Init(TorchTrapEntity* this) {
+    super->speed = (this->unk_84 & 0xf000) >> 5;
+    this->unk_84 &= 0xfff;
+    sub_0804A720(super);
+    super->action = 1;
+    this->unk_74 = this->unk_82 & 0xfff;
+    super->x.HALF.HI = ((this->unk_82 & 0x3f) << 4) + 8 + gRoomControls.origin_x;
+    super->y.HALF.HI = ((this->unk_82 & 0xfc0) >> 2) + (gRoomControls.origin_y + 8);
+    super->direction = ((s16)this->unk_82 & 0xf000) >> 10;
+    this->unk_78 = super->type << 2;
+    if (sub_0803CFF0(this)) {
+        sub_0803D0B0(this);
+    }
+}
+
+void sub_0803CF24(TorchTrapEntity* this) {
+    if (sub_0803CFD8(this)) {
+        TorchTrap_Reset(this);
+    }
+}
+
+void sub_0803CF38(TorchTrapEntity* this) {
+    if (sub_0803CFF0(this)) {
+        sub_0803D0B0(this);
+    } else if (sub_08049FDC(super, 0)) {
+        if (sub_0806FCB8(super, gUnk_020000B0->x.HALF.HI, gUnk_020000B0->y.HALF.HI, 0x20) == 0) {
+            if (--this->projectileTimer == 0) {
+                TorchTrap_CreateProjectile(this);
+                TorchTrap_Reset(this);
+            }
+        }
+    }
+}
+
+void sub_0803CF94(TorchTrapEntity* this) {
+    if (GetTileType(this->unk_74, super->collisionLayer) == 0x76) {
+        this->unk_80 = 0;
+        TorchTrap_Reset(this);
+    } else if (this->unk_7c && sub_0803CFD8(this)) {
+        TorchTrap_Reset(this);
+    }
+}
+
+bool32 sub_0803CFD8(TorchTrapEntity* this) {
+    u32 rv;
+    if (this->unk_7c == 0) {
+        rv = 1;
+    } else {
+        rv = CheckFlags(this->unk_7c);
+    }
+    return rv;
+}
+
+bool32 sub_0803CFF0(TorchTrapEntity* this) {
+    u32 rv;
+    if (this->unk_80 != 0) {
+        if (this->unk_80 == this->unk_7c) {
+            u32 val = CheckFlags(this->unk_80);
+            rv = 0;
+            if (val == 0) {
+                rv = 1;
+            }
+            return rv;
+        } else {
+            return CheckFlags(this->unk_80);
+        }
+    }
+
+    return 0;
+}
+
+void TorchTrap_Reset(TorchTrapEntity* this) {
+    u32 val;
+    super->action = 2;
+    if (this->unk_78) {
+        this->projectileTimer = this->unk_78;
+    } else {
+        this->projectileTimer = gTorchTrapTimerLengths[Random() & 7];
+    }
+}
+
+void TorchTrap_CreateProjectile(TorchTrapEntity* this) {
+    Entity* proj = CreateProjectileWithParent(super, TORCH_TRAP_PROJECTILE, 0);
+    if (proj) {
+        u16 speed = super->speed;
+        if (super->speed) {
+            proj->speed = speed;
+        } else {
+            proj->speed = gTorchTrapProjectileSpeeds[Random() & 3];
+        }
+
+        if (super->direction & 0x20) {
+            proj->direction = GetFacingDirection(super, gUnk_020000B0);
+        } else {
+            proj->direction = super->direction;
+        }
+    }
+}
+
+void sub_0803D0B0(TorchTrapEntity* this) {
+    super->action = 3;
+    sub_0807B7D8(0x75, this->unk_74, super->collisionLayer);
+}
+
+void (*const gTorchTrapActions[])(TorchTrapEntity*) = {
+    TorchTrap_Init,
+    sub_0803CF24,
+    sub_0803CF38,
+    sub_0803CF94,
+};
+
+const u16 gTorchTrapTimerLengths[] = {
+    0x3c, 0x3c, 0x5a, 0x5a, 0x5a, 0x78, 0x78, 0x96,
+};
+
+const u16 gTorchTrapProjectileSpeeds[] = {
+    0x80,
+    0x100,
+    0x180,
+    0x200,
+};