Initial commit

2023-03-05 07:03:54 +01:00
commit 09c1bdd874
100 changed files with 142957 additions and 0 deletions
--- a/src/sm_b4.c
+++ b/src/sm_b4.c
@@ -0,0 +1,117 @@
+// B4 - Enemy instructions, sets, drop chances, resistances (complete)
+#include "ida_types.h"
+#include "variables.h"
+#include "funcs.h"
+#include "enemy_types.h"
+
+#define kCreateSprite_Ilists ((uint16*)RomPtr(0xb4bda8))
+
+void CreateSpriteAtPos(void) {  // 0xB4BC26
+  int v0 = 62;
+  while (sprite_instr_list_ptrs[v0 >> 1]) {
+    v0 -= 2;
+    if ((v0 & 0x8000u) != 0)
+      return;
+  }
+  int v1 = v0 >> 1;
+  sprite_palettes[v1] = 0;
+  sprite_x_subpos[v1] = 0;
+  sprite_y_subpos[v1] = 0;
+  sprite_disable_flag[v1] = 0;
+  sprite_x_pos[v1] = R18_;
+  sprite_y_pos[v1] = R20_;
+  sprite_palettes[v1] = R24_;
+  uint16 v2 = kCreateSprite_Ilists[R22_];
+  sprite_instr_list_ptrs[v1] = v2;
+  sprite_instr_timer[v1] = *(uint16 *)RomPtr_B4(v2);
+  R18_ = v0;
+}
+
+void CallSpriteObjectInstr(uint32 ea) {
+  switch (ea) {
+  case fnSpriteObject_Instr_RepeatLast: SpriteObject_Instr_RepeatLast(); return;  // 0xb4bcf0
+  case fnSpriteObject_Instr_Terminate: SpriteObject_Instr_Terminate(); return;  // 0xb4bd07
+  case fnSpriteObject_Instr_Goto: SpriteObject_Instr_Goto(); return;  // 0xb4bd12
+  default: Unreachable();
+  }
+}
+
+void HandleSpriteObjects(void) {  // 0xB4BC82
+  uint16 v1;
+
+  if (!(debug_time_frozen_for_enemies | time_is_frozen_flag)) {
+    sprite_object_index = 62;
+    while (1) {
+      int v0;
+      v0 = sprite_object_index >> 1;
+      if (!sprite_instr_list_ptrs[v0] || (sprite_disable_flag[v0] & 1) != 0)
+        goto LABEL_9;
+      v1 = sprite_instr_timer[v0];
+      if ((v1 & 0x8000u) != 0)
+        break;
+      sprite_instr_timer[v0] = v1 - 1;
+      if (v1 == 1) {
+        uint16 v3 = sprite_instr_list_ptrs[v0] + 4;
+        sprite_instr_list_ptrs[v0] = v3;
+        v1 = *(uint16 *)RomPtr_B4(v3);
+        if (!sign16(v1 + 0x8000))
+          break;
+        sprite_instr_timer[sprite_object_index >> 1] = v1;
+      }
+LABEL_9:
+      sprite_object_index -= 2;
+      if ((sprite_object_index & 0x8000u) != 0)
+        return;
+    }
+    R18_ = v1;
+    CallSpriteObjectInstr(v1 | 0xB40000);
+    goto LABEL_9;
+  }
+}
+
+void SpriteObject_Instr_RepeatLast(void) {  // 0xB4BCF0
+  int v2 = sprite_object_index >> 1;
+  sprite_instr_list_ptrs[v2] -= 4;
+  sprite_instr_timer[v2] = 0x7FFF;
+}
+
+void SpriteObject_Instr_Terminate(void) {  // 0xB4BD07
+  sprite_instr_list_ptrs[sprite_object_index >> 1] = 0;
+}
+
+void SpriteObject_Instr_Goto(void) {  // 0xB4BD12
+  uint16 v2 = *((uint16 *)RomPtr_B4(sprite_instr_list_ptrs[sprite_object_index >> 1]) + 1);
+  sprite_instr_list_ptrs[sprite_object_index >> 1] = v2;
+  sprite_instr_timer[sprite_object_index >> 1] = *(uint16 *)RomPtr_B4(v2);
+}
+
+void DrawSpriteObjects(void) {  // 0xB4BD32
+  for (int i = 62; i >= 0; i -= 2) {
+    int v1 = i >> 1;
+    if (sprite_instr_list_ptrs[v1]) {
+      R20_ = sprite_x_pos[v1] - layer1_x_pos;
+      if ((int16)(R20_ + 16) >= 0) {
+        if (sign16(R20_ - 272)) {
+          int16 v2 = sprite_y_pos[v1] - layer1_y_pos;
+          R18_ = v2;
+          if (v2 >= 0) {
+            if (sign16(v2 - 272)) {
+              R3_.addr = sprite_palettes[v1] & 0xE00;
+              R0_.addr = sprite_palettes[v1] & 0x1FF;
+              uint8 *v3 = RomPtr_B4(sprite_instr_list_ptrs[v1]);
+              DrawSpritemapWithBaseTile(0xB4u, *((uint16 *)v3 + 1));
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+void ClearSpriteObjects(void) {  // 0xB4BD97
+  int v0 = 1022;
+  do {
+    sprite_instr_list_ptrs[v0 >> 1] = 0;
+    v0 -= 2;
+  } while (v0);
+}