Merge pull request #7 from lemon-sherbet/cow_npc

decompile cow

src/cow.c

@@ -0,0 +1,235 @@
+#include "global.h"
+#include "entity.h"
+#include "link.h"
+
+extern void sub_0806ED78(Entity*);
+extern void sub_0806920C(Entity*);
+extern void sub_080042B8(Entity*);
+extern u32 sub_0805ACC0(Entity*);
+extern u32 sub_0801E99C(Entity*);
+extern void sub_0806924C(Entity*);
+extern void sub_080AEF88(Entity*);
+extern void sub_0806F1AC(Entity*, u32*);
+extern void sub_08078778(Entity*);
+extern void sub_080787A8(Entity*, u32);
+extern void sub_0806F118(Entity*);
+extern void sub_080791D0();
+extern void (*gUnk_08111914[])(Entity*);
+extern void (*gUnk_08111928[])(Entity*);
+extern u32 gUnk_08111938[];
+extern void LoadAnimation();
+extern void PlaySFX(u32);
+extern u32 Random();
+extern u32 UpdateFuseInteraction(Entity*);
+extern LinkState gLinkState;
+
+void sub_08068F98(Entity* ent) {
+    gUnk_08111914[ent->action](ent);
+    sub_0806ED78(ent);
+    sub_0806920C(ent);
+}
+
+void sub_08068FC0(Entity* ent) {
+    u32 r2;
+
+    ent->action = 1;
+    ent->animationState = ent->entityType.parameter2;
+    ent->nonPlanarMovement = 0x40;
+   
+    ent->field_0x6d = 0xFF;
+    
+    r2 = sub_0805ACC0(ent);
+    if (r2 == 0) {
+        u16 x, y;
+
+        x = ent->x.HALF.HI;
+        *(u16*)&ent->field_0x68 = x;
+
+        y = ent->y.HALF.HI;
+        ent->field_0x6a = y;
+    } else {
+        u32 var1 = r2 >> 16;
+        //0x68+0x69 probably a SplitWord
+        *(u16*)&ent->field_0x68 = var1;
+        ent->field_0x6a = r2;
+    }
+    ent->field_0x6c = sub_0801E99C(ent);
+
+    LoadAnimation(ent, ent->animationState + 4);
+}
+
+void sub_08069018(Entity* ent) {
+    s32 var0;
+
+    if (ent->previousActionFlag == 0) {
+        ent->previousActionFlag++;
+        ent->field_0xf = (Random() & 0x3F) + 0x3C;
+        LoadAnimation(ent, ent->animationState);
+    }
+
+    sub_080042B8(ent);
+    var0 = --ent->field_0xf;
+    if (var0 == 0) {
+        if (ent->parameter3 == 0) {
+          ent->action = 2;
+        } else {
+          ent->action = 3;
+        }
+        ent->previousActionFlag = var0;
+    }
+    
+    sub_0806924C(ent);
+}
+
+void sub_08069068(Entity *ent) {
+    s32 var0;
+
+    if (ent->previousActionFlag == 0) {
+        u32 anim;
+
+        ent->previousActionFlag++;
+
+        anim = (Random() & 2) - 1;
+        anim = (anim + ent->animationState) & 3;
+        ent->animationState = anim;
+        ent->direction = anim <<= 3;
+
+        ent->field_0xf = (Random() & 0x3F) + 0x3C;
+        LoadAnimation(ent, ent->animationState + 4);
+    }
+
+    sub_080AEF88(ent);
+    sub_080042B8(ent);
+
+    {
+        s32 x = ent->x.HALF.HI;
+        s16 *x2 = (s16 *)&ent->field_0x68;
+        x -= *x2;
+        if (x > 16) {
+            ent->x.HALF.HI = *x2 + 16;
+            ent->field_0xf = 1;
+        }
+        if (x < -16) {
+            ent->x.HALF.HI = *x2 - 16;
+            ent->field_0xf = 1;
+        }
+    }
+    {
+        s32 y = ent->y.HALF.HI;
+        s16 *y2 = &ent->field_0x6a;
+        y -= *y2;
+        if (y > 16) {
+            ent->y.HALF.HI = *y2 + 16;
+            ent->field_0xf = 1;
+        }
+        if (y < -16) {
+            ent->y.HALF.HI = *y2 - 16;
+            ent->field_0xf = 1;
+        }
+    }
+
+    var0 = --ent->field_0xf;
+    if (var0 == 0) {
+        ent->action = 3;
+        ent->previousActionFlag = var0;
+    }
+
+    sub_0806924C(ent);
+}
+
+void sub_08069124(Entity* ent) {
+    sub_080042B8(ent);
+    gUnk_08111928[ent->previousActionFlag](ent);
+    sub_0806924C(ent);
+}
+
+void sub_08069148(Entity* ent) {
+    u32 var0 = Random() & 3;
+    var0 += 3;
+    ent->field_0xf = var0;
+    ent->previousActionFlag = 1;
+    LoadAnimation(ent, ent->animationState + 8);
+}
+
+void sub_08069168(Entity* ent) {
+    if ((s8)ent->frames.all < 0) {
+        ent->previousActionFlag = 2;
+        LoadAnimation(ent, ent->animationState + 12);
+    }
+}
+
+void sub_08069188(Entity* ent) {
+    if (ent->frames.f2 == 0) return;
+    ent->frames.all = 0;
+
+    if (((s8) --ent->field_0xf) != 0) return;
+    ent->previousActionFlag = 3;
+    LoadAnimation(ent, ent->animationState + 16);
+}
+
+void sub_080691BC(Entity* ent) {
+    if ((s8)ent->frames.all < 0) {
+        ent->action = 1;
+        ent->previousActionFlag = 0;
+        LoadAnimation(ent, ent->animationState + 4);
+    }
+}
+
+void sub_080691E0(Entity* ent) {
+    if (UpdateFuseInteraction(ent) != 0) {
+        ent->action = 1;
+        ent->previousActionFlag = 0;
+    }
+}
+
+void sub_080691F8(Entity* ent) {
+    u32 var0 = ent->entityType.parameter1;
+    u32* var1 = gUnk_08111938 + (var0 * 2);
+    sub_0806F1AC(ent, var1);
+}
+
+void sub_0806920C(Entity* ent) {
+    //TODO: figure out what bitfield flag this is
+    u32 var0 = gLinkState.flags.all & 0x80;
+    u32 var1 = -var0 >> 0x1F;
+
+    if (var1 != ent->field_0x6d) {
+        if (var1 == 0) {
+            sub_08078778(ent);
+        } else {
+            sub_080787A8(ent, ent->field_0x6c);
+        }
+    }
+
+    ent->field_0x6d = var1;
+}
+
+void sub_0806924C(Entity* ent) {
+    s8 itype = ent->interactType;
+    if (itype != 0) {
+        //TODO: figure out what bitfield flag this is
+        if ((gLinkState.flags.all & 0x80) != 0) {
+            if (itype == 2) {
+                ent->action = 4;
+                sub_0806F118(ent);
+            } else {
+                sub_080691F8(ent);
+            }
+        } else {
+            sub_080691F8(ent);
+            sub_080791D0();
+        }
+        PlaySFX(212);
+        ent->interactType = 0;
+    }
+}
+
+void sub_080692A0(Entity* ent) {
+    if (ent->action == 0) {
+        ent->action++;
+        ent->spriteSettings.b.ss0 = 1;
+        LoadAnimation(ent, 15);
+    } else {
+        sub_080042B8(ent);
+    }
+}