Skip to content

Commit

Permalink
Implement magic item gold value calculation
Browse files Browse the repository at this point in the history
  • Loading branch information
@Allofich
Allofich committed Aug 4, 2018
1 parent 5abe3c1 commit afb8f30
Show file tree
Hide file tree
Showing 2 changed files with 289 additions and 1 deletion.
237 changes: 237 additions & 0 deletions Assets/Scripts/Game/Formulas/FormulaHelper.cs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,8 @@
using System.Collections.Generic;
using DaggerfallConnect.Arena2;
using DaggerfallWorkshop.Game.Items;
using DaggerfallWorkshop.Utility;
using DaggerfallConnect.Save;

namespace DaggerfallWorkshop.Game.Formulas
{
Expand Down Expand Up @@ -1414,6 +1416,241 @@ static void GetEffectComponentCosts(
goldCost = trunc(costs.OffsetGold + costs.CostA * starting + costs.CostB * trunc(increase / perLevel));
}

/// <summary>
/// Reversed from classic. Calculates enchantment point/gold value for a spell being attached to an item.
/// </summary>
/// <param name="spellIndex">Index of spell in SPELLS.STD.</param>
public static int GetSpellEnchantPtCost(int spellIndex)
{
List<SpellRecord.SpellRecordData> spells = DaggerfallSpellReader.ReadSpellsFile();
int cost = 0;

foreach (SpellRecord.SpellRecordData spell in spells)
{
if (spell.index == spellIndex)
{
cost = 10 * CalculateCastingCost(spell);
break;
}
}

return cost;
}

/// <summary>
/// Reversed from classic. Calculates cost of casting a spell.
/// For now this is only being used for enchanted items, because there is other code for entity-cast spells.
/// </summary>
/// <param name="spell">Spell record read from SPELLS.STD.</param>
public static int CalculateCastingCost(SpellRecord.SpellRecordData spell)
{
// Indices into effect settings array for each effect and its subtypes
byte[] effectIndices = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Paralysis
0x01, 0x02, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Continuous Damage
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Create Item
0x05, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Cure
0x07, 0x07, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Damage
0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Disintegrate
0x09, 0x08, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Dispel
0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x00, 0x00, 0x00, 0x00, // Drain
0x0B, 0x0B, 0x0B, 0x0B, 0x0B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Elemental Resistance
0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x00, 0x00, 0x00, 0x00, // Fortify Attribute
0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x07, 0x0E, 0x00, 0x00, // Heal
0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x00, 0x00, // Transfer
0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Soul Trap
0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Invisibility
0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Levitate
0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Light
0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Lock
0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Open
0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Regenerate
0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Silence
0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Spell Absorption
0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Spell Reflection
0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Spell Resistance
0x18, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Chameleon
0x18, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Shadow
0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Slowfall
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Climbing
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Jumping
0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Free Action
0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, // Lycanthropy/Polymorph
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Water Breathing
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Water Walking
0x1B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Dimunition
0x1A, 0x1C, 0x1C, 0x1D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Calm
0x1E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Charm
0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Shield
0x27, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Telekinesis
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Astral Travel
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Etherealness
0x21, 0x21, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Detect
0x23, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Identify
0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Wizard Sight
0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Darkness
0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Recall
0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Comprehend Languages
0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Intensify Fire
0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Diminish Fire
0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Wall of Stone?
0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Wall of Fire?
0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Wall of Frost?
0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // Wall of Poison?

// These are coefficients for each effect type and subtype. They affect casting cost, enchantment point cost and magic item worth.
// There are 4 coefficients, used together with duration, chance and magnitude settings.
// Which one they are used with depends on which "settings type" the effect is classified as.
ushort[] effectCoefficients = {
0x07, 0x19, 0x07, 0x19, // Paralysis / Cure Magic?
0x07, 0x02, 0x0A, 0x07, // Continuous Damage - Health
0x05, 0x02, 0x0A, 0x07, // Continuous Damage - Stamina / Climbing / Jumping / Water Breathing / Water Walking
0x0A, 0x02, 0x0A, 0x07, // Continuous Damage - Spell Points
0x0F, 0x1E, 0x00, 0x00, // Create Item
0x02, 0x19, 0x00, 0x00, // Cure Disease / Cure Poison
0x05, 0x23, 0x00, 0x00, // Cure Paralysis
0x05, 0x07, 0x00, 0x00, // Damage Health / Damage Stamina / Damage Spell Points / Heal Health / Darkness
0x14, 0x23, 0x00, 0x00, // Disintegrate / Dispel Undead
0x1E, 0x2D, 0x00, 0x00, // Dispel Magic / Dispel Daedra
0x04, 0x19, 0x02, 0x19, // Drain Attribute
0x19, 0x19, 0x02, 0x19, // Elemental Resistance
0x07, 0x19, 0x0A, 0x1E, // Fortify Attribute
0x0A, 0x07, 0x00, 0x00, // Heal Attribute
0x02, 0x07, 0x00, 0x00, // Heal Stamina
0x05, 0x05, 0x0F, 0x19, // Transfer
0x0A, 0x1E, 0x00, 0x00, // Invisibility
0x0F, 0x23, 0x00, 0x00, // True Invisibility
0x0F, 0x19, 0x00, 0x00, // Levitate
0x02, 0x0A, 0x00, 0x00, // Light
0x05, 0x19, 0x07, 0x1E, // Lock / Slowfall
0x19, 0x05, 0x02, 0x02, // Regenerate
0x05, 0x19, 0x05, 0x19, // Silence / Spell Resistance
0x07, 0x23, 0x07, 0x23, // Spell Absorption / Spell Reflection
0x05, 0x14, 0x00, 0x00, // Chameleon / Shadow
0x05, 0x05, 0x00, 0x00, // Free Action
0x0F, 0x19, 0x0F, 0x19, // Lycanthropy / Polymorph / Calm Animal
0x0A, 0x14, 0x14, 0x28, // Diminution
0x0A, 0x05, 0x14, 0x23, // Calm Undead / Calm Humanoid
0x07, 0x02, 0x0F, 0x1E, // Calm Daedra? (Unused)
0x05, 0x02, 0x0A, 0x0F, // Charm
0x07, 0x02, 0x14, 0x0F, // Shield
0x23, 0x02, 0x0A, 0x19, // Astral Travel / Etherealness
0x05, 0x02, 0x14, 0x1E, // Detect Magic / Detect Enemy
0x05, 0x02, 0x0F, 0x19, // Detect Treasure
0x05, 0x02, 0x0A, 0x19, // Identify
0x07, 0x0C, 0x05, 0x05, // Wizard Sight
0x23, 0x2D, 0x00, 0x00, // Recall
0x0F, 0x11, 0x0A, 0x11, // Soul Trap
0x14, 0x11, 0x19, 0x23, // Telekinesis
0x05, 0x19, 0x00, 0x00, // Open
0x0F, 0x11, 0x0A, 0x11, // Comprehend Languages
0x0F, 0x0F, 0x05, 0x05 }; // Intensify Fire / Diminish Fire / Wall of --

// All effects have one of 6 types for their settings depending on which settings (duration, chance, magnitude)
// they use, which determine how the coefficient values are used with their data to determine spell casting
// cost /magic item value/enchantment point cost.
// There is also a 7th type that is supported in classic (see below) but no effect is defined to use it.
byte[] settingsTypes = { 1, 2, 3, 4, 5, 4, 4, 2, 1, 6, 5, 6, 1, 3, 3, 3, 1, 4, 2, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 1, 3, 3, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 3, 4, 1, 2, 2, 2, 2, 2, 2, 2 };

// Modifiers for casting ranges
byte[] rangeTypeModifiers = { 2, 2, 3, 4, 5 };

int cost = 0;
int skill = 50; // 50 is used for item enchantments, which is all this spell is used for now.
// This function could be used as in classic to get casting costs for spells
// cast by entities by replacing skillUsedForEnchantedItemCost with the skill
// of the caster in the effect's spell school.

for (int i = 0; i < 3; ++i)
{
if (spell.effects[i].type != -1)
{
// Get the coefficients applied to settings for this effect and copy them into the temporary variable
ushort[] coefficientsForThisEffect = new ushort[4];

if (spell.effects[i].subType == -1) // No subtype
{
Array.Copy(effectCoefficients, 4 * effectIndices[12 * spell.effects[i].type], coefficientsForThisEffect, 0, 4);
}
else // Subtype exists
{
Array.Copy(effectCoefficients, 4 * effectIndices[12 * spell.effects[i].type + spell.effects[i].subType], coefficientsForThisEffect, 0, 4);
}

// Add to the cost based on this effect's settings
cost += getCostFromSettings(settingsTypes[spell.effects[i].type], i, spell, coefficientsForThisEffect) * (110 - skill) / 100;
}
}

cost = cost * rangeTypeModifiers[spell.rangeType] >> 1;
if (cost < 5)
cost = 5;

return cost;
}

/// <summary>
/// Reversed from classic. Used wih calculating cost of casting a spell.
/// This uses the spell's settings for chance, duration and magnitude together with coefficients for that effect
/// to get the cost of the effect, before the range type modifier is applied.
/// </summary>
public static int getCostFromSettings(int settingsType, int effectNumber, SpellRecord.SpellRecordData spellData, ushort[] coefficients)
{
int cost = 0;

switch (settingsType)
{
case 1:
// Coefficients used with:
// 0 = durationBase, 1 = durationMod / durationPerLevel, 2 = chanceBase, 3 = chanceMod / chancePerLevel
cost = coefficients[0] * spellData.effects[effectNumber].durationBase
+ spellData.effects[effectNumber].durationMod / spellData.effects[effectNumber].durationPerLevel * coefficients[1]
+ coefficients[2] * spellData.effects[effectNumber].chanceBase
+ spellData.effects[effectNumber].chanceMod / spellData.effects[effectNumber].chancePerLevel * coefficients[3];
break;
case 2:
// Coefficients used with:
// 0 = durationBase, 1 = durationMod / durationPerLevel, 2 = (magnitudeBaseHigh + magnitudeBaseLow) / 2, 3 = (magnitudeLevelBase + magnitudeLevelHigh) / 2 / magnitudePerLevel
cost = coefficients[0] * spellData.effects[effectNumber].durationBase
+ spellData.effects[effectNumber].durationMod / spellData.effects[effectNumber].durationPerLevel * coefficients[1]
+ (spellData.effects[effectNumber].magnitudeBaseHigh + spellData.effects[effectNumber].magnitudeBaseLow) / 2 * coefficients[2]
+ (spellData.effects[effectNumber].magnitudeLevelBase + spellData.effects[effectNumber].magnitudeLevelHigh) / 2 / spellData.effects[effectNumber].magnitudePerLevel * coefficients[3];
break;
case 3:
// Coefficients used with:
// 0 = durationBase, 1 = durationMod / durationPerLevel
cost = coefficients[0] * spellData.effects[effectNumber].durationBase
+ spellData.effects[effectNumber].durationMod / spellData.effects[effectNumber].durationPerLevel * coefficients[1];
break;
case 4:
// Coefficients used with:
// 0 = chanceBase, 1 = chanceMod / chancePerLevel
cost = coefficients[0] * spellData.effects[effectNumber].chanceBase
+ spellData.effects[effectNumber].chanceMod / spellData.effects[effectNumber].chancePerLevel * coefficients[1];
break;
case 5:
// Coefficients used with:
// 0 = (magnitudeBaseHigh + magnitudeBaseLow) / 2, 1 = (magnitudeLevelBase + magnitudeLevelHigh) / 2 / magnitudePerLevel
cost = coefficients[0] * ((spellData.effects[effectNumber].magnitudeBaseHigh + spellData.effects[effectNumber].magnitudeBaseLow) / 2)
+ (spellData.effects[effectNumber].magnitudeLevelBase + spellData.effects[effectNumber].magnitudeLevelHigh) / 2 / spellData.effects[effectNumber].magnitudePerLevel * coefficients[1];
break;
case 6:
// Coefficients used with:
// 0 = durationBase, 1 = durationMod / durationPerLevel, 2 = (magnitudeBaseHigh + magnitudeBaseLow) / 2, 3 = (magnitudeLevelBase + magnitudeLevelHigh) / 2 / magnitudePerLevel
cost = coefficients[0] * spellData.effects[effectNumber].durationBase
+ coefficients[1] * spellData.effects[effectNumber].durationMod / spellData.effects[effectNumber].durationPerLevel
+ ((spellData.effects[effectNumber].magnitudeBaseHigh + spellData.effects[effectNumber].magnitudeBaseLow) / 2) * coefficients[2]
+ coefficients[3] / spellData.effects[effectNumber].magnitudePerLevel * ((spellData.effects[effectNumber].magnitudeLevelBase + spellData.effects[effectNumber].magnitudeLevelHigh) / 2);
break;
case 7: // Not used
// Coefficients used with:
// 0 = (magnitudeBaseHigh + magnitudeBaseLow) / 2, 1 = (magnitudeLevelBase + magnitudeLevelHigh) / 2 / magnitudePerLevel * durationBase / durationMod
cost = (spellData.effects[effectNumber].magnitudeBaseHigh + spellData.effects[effectNumber].magnitudeBaseLow) / 2 * coefficients[0]
+ coefficients[1] * (spellData.effects[effectNumber].magnitudeLevelBase + spellData.effects[effectNumber].magnitudeLevelHigh) / 2 / spellData.effects[effectNumber].magnitudePerLevel * spellData.effects[effectNumber].durationBase / spellData.effects[effectNumber].durationMod;
break;
}
return cost;
}

// Just makes formulas more readable
static int trunc(double value) { return (int)Math.Truncate(value); }

Expand Down
Loading

0 comments on commit afb8f30

Please sign in to comment.