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rewrite unit generation logic to fix v2/bb behavior

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This commit is contained in:
Martin Michelsen
2023-11-21 21:57:19 -08:00
parent b0c481ed62
commit 5991a5a894
4 changed files with 63 additions and 95 deletions
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src/CommonItemSet.hh
+13 -13
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@@ -41,7 +41,7 @@ public:
const parray<parray<uint8_t, 0x0A>, 0x13>& technique_index_prob_table() const;
const parray<parray<Range<uint8_t>, 0x0A>, 0x13>& technique_level_ranges() const;
uint8_t armor_or_shield_type_bias() const;
const parray<uint8_t, 0x0A>& unit_maxes_table() const;
const parray<uint8_t, 0x0A>& unit_max_stars_table() const;
const parray<parray<uint8_t, 10>, 7>& box_item_class_prob_table() const;
private:
@@ -219,21 +219,21 @@ public:
/* 48 */ uint8_t armor_or_shield_type_bias;
/* 49 */ parray<uint8_t, 3> unused1;
// These values specify maximum indexes into another array which is
// generated at runtime. The values here are multiplied by a random float in
// the range [0, n] to look up the value in the secondary array, which is
// what ends up determining the unit type.
// TODO: Figure out and document the exact logic here. Anchor: 80106364
// These values specify the maximum number of stars any generated unit can
// have in each area. The values here are not inclusive; that is, a value
// of 7 means that only units with 1-6 stars can drop in that area. The
// game uniformly chooses a random number of stars in the acceptable
// range, then uniformly chooses a random unit with that many stars.
// V2/V3: -> parray<uint8_t, 0x0A>
/* 4C */ U32T unit_maxes_offset;
/* 4C */ U32T unit_max_stars_offset;
// This index probability table determines which type of items drop from
// boxes. The table is indexed as [item_class][area - 1], with item_class as
// the result value (that is, in the example below, the game looks at a
// single column and sums the values going down, then the chosen item class
// is one of the row indexes based on the weight values in the column.) The
// resulting item_class value has the same meaning as in enemy_item_classes
// above.
// boxes. The table is indexed as [item_class][area - 1], with item_class
// as the result value (that is, in the example below, the game looks at a
// single column and sums the values going down, then the chosen item
// class is one of the row indexes based on the weight values in the
// column.) The resulting item_class value has the same meaning as in
// enemy_item_classes above.
// For example, this array might look like the following:
// [07 07 08 08 06 07 08 09 09 0A] // Chances per area of a weapon drop
// [02 02 02 02 03 02 02 02 03 03] // Chances per area of an armor drop