1 files changed, 173 insertions, 0 deletions
diff --git a/src/KingSystem/Resource/Actor/resResourceDrop.cpp b/src/KingSystem/Resource/Actor/resResourceDrop.cpp
new file mode 100644
index 00000000..d3696ba3
--- /dev/null
+++ b/src/KingSystem/Resource/Actor/resResourceDrop.cpp
@@ -0,0 +1,173 @@
+#include "KingSystem/Resource/Actor/resResourceDrop.h"
+#include <random/seadGlobalRandom.h>
+
+namespace ksys::res {
+
+bool Drop::parse_(u8* data, size_t, sead::Heap* heap) {
+    mTableNum.init(0, "TableNum", "テーブルの数", &mObj);
+    addObj(&mObj, "Header");
+
+    if (!data)
+        return true;
+
+    applyResParameterArchive(agl::utl::ResParameterArchive{data});
+
+    const s32 num_tables = mTableNum.ref();
+    if (num_tables < 1)
+        return true;
+
+    mTables.allocBufferAssert(num_tables, heap);
+
+    const agl::utl::ResParameterArchive archive{data};
+    const auto root = archive.getRootList();
+    const auto header_obj = root.getResParameterObj(0);
+
+    for (s32 i = 0; i < num_tables; ++i) {
+        sead::FormatFixedSafeString<64> name;
+        name.format("Table%02d", i + 1);
+        mTables[i].name.init("", name, "テーブル名", &mObj);
+    }
+
+    mObj.applyResParameterObj(header_obj);
+
+    for (s32 i = 0; i < num_tables; ++i) {
+        const auto obj = root.getResParameterObj(i + 1);
+
+        mTables[i].repeat_num_min.init(0, "RepeatNumMin", "抽選回数最小", &mTables[i].obj);
+        mTables[i].repeat_num_max.init(0, "RepeatNumMax", "抽選回数最大", &mTables[i].obj);
+        mTables[i].approach_type.init(0, "ApproachType", "姿勢", &mTables[i].obj);
+        mTables[i].occurrence_speed_type.init(0, "OccurrenceSpeedType", "発生速度",
+                                              &mTables[i].obj);
+        mTables[i].column_num.init(0, "ColumnNum", "行数", &mTables[i].obj);
+
+        addObj(&mTables[i].obj, mTables[i].name.ref());
+        applyResParameterArchive(agl::utl::ResParameterArchive{data});
+        mTables[i].obj.applyResParameterObj(obj);
+
+        if (mTables[i].column_num.ref() > 0) {
+            mTables[i].items.allocBufferAssert(mTables[i].column_num.ref(), heap);
+        }
+    }
+
+    for (s32 i = 0; i < num_tables; ++i) {
+        parseItems_(i);
+    }
+
+    applyResParameterArchive(agl::utl::ResParameterArchive{data});
+    return true;
+}
+
+void Drop::parseItems_(s32& table_idx) {
+    const s32 num = mTables[table_idx].column_num.ref();
+    for (s32 i = 0; i < num; ++i) {
+        sead::FormatFixedSafeString<64> name;
+        name.format("ItemName%02d", i + 1);
+        mTables[table_idx].items[i].name.init("", name, "アイテム名", &mTables[table_idx].obj);
+
+        sead::FormatFixedSafeString<64> name2;
+        name2.format("ItemProbability%02d", i + 1);
+        mTables[table_idx].items[i].probability.init(0.0, name2, "確率", &mTables[table_idx].obj);
+    }
+}
+
+s32 Drop::findTableIndex(const sead::SafeString& table_name) const {
+    if (!mTables.isBufferReady())
+        return -1;
+
+    const s32 num = mTableNum.ref();
+    for (s32 i = 0; i < num; ++i) {
+        if (mTables[i].name.ref() == table_name)
+            return i;
+    }
+
+    return -1;
+}
+
+s32 Drop::findTableIndexOrNormal(const sead::SafeString& table_name) const {
+    if (!mTables.isBufferReady())
+        return -1;
+
+    s32 normal_idx = -1;
+    const s32 num = mTableNum.ref();
+    for (s32 i = 0; i < num; ++i) {
+        if (mTables[i].name.ref() == table_name)
+            return i;
+
+        if (normal_idx < 0 && mTables[i].name.ref() == "Normal")
+            normal_idx = i;
+    }
+
+    return normal_idx;
+}
+
+const sead::SafeString& Drop::getRandomDropFromTable(const sead::SafeString& table_name) const {
+    return getRandomDropFromTable(findTableIndexOrNormal(table_name));
+}
+
+const sead::SafeString& Drop::getRandomDropFromTable(s32 table_idx) const {
+    if (!mTables.isBufferReady())
+        return sead::SafeString::cEmptyString;
+
+    /// @bug The index check should be done first...
+    if (!mTables[table_idx].items.isBufferReady() || table_idx < 0)
+        return sead::SafeString::cEmptyString;
+
+    f32 x = sead::GlobalRandom::instance()->getF32() * 100.0;
+
+    const Table& table = mTables[table_idx];
+    const s32 num_items = table.column_num.ref();
+    for (s32 i = 0; i < num_items; ++i) {
+        const Item& item = table.items[i];
+
+        const f32 probability = item.probability.ref();
+        if (x < probability)
+            return item.name.ref();
+
+        x -= probability;
+    }
+
+    return sead::SafeString::cEmptyString;
+}
+
+s32 Drop::getApproachType(s32 table_idx) const {
+    if (!mTables.isBufferReady())
+        return 0;
+
+    /// @bug This bounds checking is bugged: the order is absurd and the second check is off-by-one.
+    if (!mTables[table_idx].items.isBufferReady() || table_idx < 0 || table_idx > mTables.size())
+        return 0;
+
+    return mTables[table_idx].approach_type.ref();
+}
+
+s32 Drop::getOccurrenceSpeedType(s32 table_idx) const {
+    if (!mTables.isBufferReady())
+        return 0;
+
+    /// @bug This bounds checking is bugged: the order is absurd and the second check is off-by-one.
+    if (!mTables[table_idx].items.isBufferReady() || table_idx < 0 || table_idx > mTables.size())
+        return 0;
+
+    return mTables[table_idx].occurrence_speed_type.ref();
+}
+
+s32 Drop::getRepeatNum(s32 table_idx) const {
+    if (!mTables.isBufferReady())
+        return 0;
+
+    const Table& table = mTables[table_idx];
+    if (!mTables[table_idx].items.isBufferReady() || table_idx < 0 || table_idx > mTables.size())
+        return 0;
+
+    const s32 num_min = table.repeat_num_min.ref();
+    const s32 num_max = table.repeat_num_max.ref();
+    if (num_min == num_max)
+        return num_min;
+    return num_min + sead::GlobalRandom::instance()->getU32(1 - num_min + num_max);
+}
+
+s32 Drop::getRepeatNum(const sead::SafeString& table_name) const {
+    return getRepeatNum(findTableIndexOrNormal(table_name));
+}
+
+}  // namespace ksys::res