0b58368de0
### Description <!-- What is the purpose of this PR and what it adds? --> ### Will this Pull Request break anything? <!-- Will it break the compiling? --> ### Suggested Testing Steps <!-- See if the compiling fails/break anything in the game. -->
119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
// B4 - Enemy instructions, sets, drop chances, resistances (complete)
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#include "ida_types.h"
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#include "variables.h"
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#include "funcs.h"
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#include "enemy_types.h"
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#define kCreateSprite_Ilists ((uint16*)RomFixedPtr(0xb4bda8))
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uint16 CreateSpriteAtPos(uint16 x_r18, uint16 y_r20, uint16 ilist_r22, uint16 pal_r24) { // 0xB4BC26
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int v0 = 62;
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while (sprite_instr_list_ptrs[v0 >> 1]) {
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v0 -= 2;
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if ((v0 & 0x8000) != 0)
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return 0xffff;
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}
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int v1 = v0 >> 1;
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sprite_palettes[v1] = 0;
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sprite_x_subpos[v1] = 0;
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sprite_y_subpos[v1] = 0;
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sprite_disable_flag[v1] = 0;
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sprite_x_pos[v1] = x_r18;
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sprite_y_pos[v1] = y_r20;
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sprite_palettes[v1] = pal_r24;
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uint16 v2 = kCreateSprite_Ilists[ilist_r22];
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sprite_instr_list_ptrs[v1] = v2;
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sprite_instr_timer[v1] = *(uint16 *)RomPtr_B4(v2);
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// R18 = v0;
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return v0;
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}
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void CallSpriteObjectInstr(uint32 ea) {
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switch (ea) {
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case fnSpriteObject_Instr_RepeatLast: SpriteObject_Instr_RepeatLast(); return; // 0xb4bcf0
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case fnSpriteObject_Instr_Terminate: SpriteObject_Instr_Terminate(); return; // 0xb4bd07
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case fnSpriteObject_Instr_Goto: SpriteObject_Instr_Goto(); return; // 0xb4bd12
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default: Unreachable();
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}
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}
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void HandleSpriteObjects(void) { // 0xB4BC82
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uint16 v1;
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if (debug_time_frozen_for_enemies | time_is_frozen_flag)
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return;
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sprite_object_index = 62;
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do {
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int v0;
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v0 = sprite_object_index >> 1;
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if (!sprite_instr_list_ptrs[v0] || (sprite_disable_flag[v0] & 1) != 0)
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continue;
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v1 = sprite_instr_timer[v0];
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if (sign16(v1)) {
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BREAKLABEL:
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CallSpriteObjectInstr(v1 | 0xB40000);
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continue;
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}
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sprite_instr_timer[v0] = v1 - 1;
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if (v1 == 1) {
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uint16 v3 = sprite_instr_list_ptrs[v0] + 4;
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sprite_instr_list_ptrs[v0] = v3;
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v1 = *(uint16 *)RomPtr_B4(v3);
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if (sign16(v1))
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goto BREAKLABEL;
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sprite_instr_timer[sprite_object_index >> 1] = v1;
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}
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} while (!sign16(sprite_object_index -= 2));
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}
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void SpriteObject_Instr_RepeatLast(void) { // 0xB4BCF0
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int v2 = sprite_object_index >> 1;
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sprite_instr_list_ptrs[v2] -= 4;
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sprite_instr_timer[v2] = 0x7FFF;
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}
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void SpriteObject_Instr_Terminate(void) { // 0xB4BD07
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sprite_instr_list_ptrs[sprite_object_index >> 1] = 0;
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}
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void SpriteObject_Instr_Goto(void) { // 0xB4BD12
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uint16 v2 = GET_WORD(RomPtr_B4(sprite_instr_list_ptrs[sprite_object_index >> 1]) + 2);
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sprite_instr_list_ptrs[sprite_object_index >> 1] = v2;
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sprite_instr_timer[sprite_object_index >> 1] = GET_WORD(RomPtr_B4(v2));
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}
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void DrawSpriteObjects(void) { // 0xB4BD32
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for (int i = 62; i >= 0; i -= 2) {
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int v1 = i >> 1;
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if (sprite_instr_list_ptrs[v1]) {
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uint16 x = sprite_x_pos[v1] - layer1_x_pos;
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if ((int16)(x + 16) >= 0) {
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if (sign16(x - 272)) {
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int16 y = sprite_y_pos[v1] - layer1_y_pos;
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if (y >= 0) {
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if (sign16(y - 272)) {
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uint16 r3 = sprite_palettes[v1] & 0xE00;
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uint16 r0 = sprite_palettes[v1] & 0x1FF;
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const uint8 *v3 = RomPtr_B4(sprite_instr_list_ptrs[v1]);
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DrawSpritemapWithBaseTile(0xB4, GET_WORD(v3 + 2), x, y, r3, r0);
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}
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}
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}
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}
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}
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}
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}
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void ClearSpriteObjects(void) { // 0xB4BD97
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int v0 = 1022;
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do {
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sprite_instr_list_ptrs[v0 >> 1] = 0;
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v0 -= 2;
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} while (v0);
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}
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