301 Days (redux)

Another metric leap year of gamedev experiments and such

Day 79 - Shielded Resistance

Nov 20, 2016 - 6 minute read - OldDaysseitan-spin

Never got around to playing the sequel.

In which we offer some temporary resistance.

Test Every Day

What’s next?

DragonsSpine/GameSystems/Effects/Effect.cs GitLab 
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    Shield,
    Regenerate_Hits,
    Regenerate_Mana,
    Regenerate_Stamina,
    Protection_from_Fire, // 40
    Protection_from_Cold,
    Protection_from_Poison,
    Protection_from_Fire_and_Ice,
    Protection_from_Blind_and_Fear,
    Protection_from_Stun_and_Death, // 45
    Resist_Fear,
    Resist_Blind,
    Resist_Stun,
    Resist_Lightning,
    Resist_Death, // 50
    Resist_Zonk,

Lots of resistance and protection stuff. We’ll take care of shielding first:

features/player_effects.feature GitLab 
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## Shield

# Notes:
# Temporary character attribute "Shielding"; there is a Land.MaxShielding.
# Land max is 9 in the current db.
# Visible via command 'show effects' as "Total Shielding = <value>".
# Value is subtracted from armor class for ranged attacks, half for melee.

Scenario: Temporary shield potion increases shield temporarily
    Given I use the "minimal" database as-is
    And I add player and character "TestTS02"
    And I create a "shield" potion of amount "5" and duration "2"
    And I put the item in the character's left hand
    And I start the server and play
    And I have a shielding of "0"
    When I open and drink "bottle"
    Then I have a shielding of "5"
    And I rest
    And I have a shielding of "0"

Scenario: Temporary shield potion maxes out at Land max
    Given I use the "minimal" database as-is
    And I add player and character "TestTS03"
    And I create a "shield" potion of amount "10" and duration "2"
    And I put the item in the character's left hand
    And I start the server and play
    And I have a shielding of "0"
    When I open and drink "bottle"
    Then I have a shielding of "9"
    And I rest
    And I have a shielding of "0"

Rather than starting a fight, I’m just using the “show effects” command to see what the effect is. Everything works well until I try multiple potions on a whim, and instead of combining or overriding, the effect drops to zero..? Couldn’t immediately figure it out, so tag the test and move on.

features/player_effects.feature GitLab 
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# bug - rather than having the amount updated, we wind up with 0?
@bug
Scenario: Multiple temporary shield potions
    Given I use the "minimal" database as-is
    And I add player and character "TestTS04"
    And I create a "shield" potion of amount "6" and duration "99"
    And I put the item in the character's right hand
    And I create a "shield" potion of amount "9" and duration "99"
    And I put the item in the character's left hand
    And I start the server and play
    And I have a shielding of "0"
    When I open and drink "bottle"
    Then I have a shielding of "6"
    And I drop "right"
    And I open and drink "bottle"
    And I have a shielding of "9"

For the protection and resistance stuff, let’s make some generic steps:

features/steps/character_steps.rb GitLab 
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Then(/^I have a "([^"]*)" resistance of "([^"]*)"$/) do |type, desired_value|
  resp = telnet_command(@connection, "show resists", / ->/)
  waited_for = /#{type}\s*:\s*#{desired_value}\b/i
  expect(@last_resp).to match(waited_for)
end

Then(/^I have a "([^"]*)" protection of "([^"]*)"$/) do |type, desired_value|
  resp = telnet_command(@connection, "show protection", / ->/)
  waited_for = /#{type}\s*:\s*#{desired_value}\b/i
  expect(@last_resp).to match(waited_for)
end
features/player_effects.feature GitLab 
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## Resistance and Protection effects
# TODO - verify no unintended resistance/protection
Scenario Outline: Resistance and protection potions have desired effects
    Given I use the "minimal" database as-is
    And I add player and character "TestRP01"
    And I create an "<effect>" potion of amount "<amt>" and duration "3"
    And I put the item in the character's left hand
    And I start the server and play
    And I have a "<resist>" resistance of "0"
    And I have a "<protect>" protection of "0"
    When I open and drink "bottle"
    And I have a "<resist>" resistance of "<resistamt>"
    And I have a "<protect>" protection of "<protectamt>"
    And I rest
    And I have a "<resist>" resistance of "0"
    And I have a "<protect>" protection of "0"
Examples:
| effect                         | amt | resist    | resistamt | protect | protectamt |
| Protection_from_Fire           | 2   | Fire      | 1         | Fire    | 2          |
| Protection_from_Cold           | 3   | Ice       | 1         | Ice     | 3          |
| Protection_from_Fire_and_Ice   | 4   | Fire      | 1         | Fire    | 4          |
| Protection_from_Fire_and_Ice   | 5   | Ice       | 1         | Ice     | 5          |
| Protection_from_Poison         | 6   | Poison    | 1         | Poison  | 6          |
| Protection_from_Stun_and_Death | 8   | Death     | 1         | Death   | 8          |
| Protection_from_Stun_and_Death | 9   | Stun      | 1 | | |
| Protection_from_Blind_and_Fear | 7   | Blind     | 1 | | |
| Protection_from_Blind_and_Fear | 8   | Fear      | 1 | | |
| Resist_Fear                    | 7   | Fear      | 1 | | |
| Resist_Blind                   | 0   | Blind     | 1 | | |
| Resist_Stun                    | 5   | Stun      | 1 | | |
| Resist_Lightning               | 0   | Lightning | 1 | | |

Resist_Death seems to have an interesting issue. In CreateCharacterEffect:

DragonsSpine/GameSystems/Effects/Effect.cs GitLab 
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    case EffectType.Resist_Death:
        target.DeathResistance++;
        break;

But in StopCharacterEffect:

DragonsSpine/GameSystems/Effects/Effect.cs GitLab 
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    case EffectType.Resist_Death:
        this.target.DeathProtection -= effectAmount;
        break;

So we’ll split that off into a separate test and bug-tag it until it’s fixed:

features/player_effects.feature GitLab 
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# bug? - Resist_Death adds death resistance but removes death protection when it wears off
# NOTE: Merge with other test when fixed.
@bug
Scenario Outline: Death resistance potion has desired effect
    Given I use the "minimal" database as-is
    And I add player and character "TestRP02"
    And I create an "<effect>" potion of amount "<amt>" and duration "3"
    And I put the item in the character's left hand
    And I start the server and play
    And I have a "<resist>" resistance of "0"
    And I have a "<protect>" protection of "0"
    When I open and drink "bottle"
    And I have a "<resist>" resistance of "<resistamt>"
    And I have a "<protect>" protection of "<protectamt>"
    And I rest
    And I have a "<resist>" resistance of "0"
    And I have a "<protect>" protection of "0"
Examples:
| effect                         | amt | resist    | resistamt | protect | protectamt |
| Resist_Death                   | 3   | Death     | 1 | | |

Zonk?

I initially skipped over it; what the heck is Resist_Zonk?

In the DoDamage method, we find:

DragonsSpine/GameSystems/Rules/Rules.cs GitLab 
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 if (target.Stunned <= 0 && critical && !target.immuneStun)
	{
        int saveMod = -(target.ZonkResistance);
        // damager used a bash
        if (damager.CommandType == Command.CommandType.Bash)
        {
            saveMod += Math.Max(target.Level, Skills.GetSkillLevel(damager.GetSkillExperience(Globals.eSkillType.Bash))) -
                Math.Min(target.Level, Skills.GetSkillLevel(damager.GetSkillExperience(Globals.eSkillType.Bash)));
        }
        
        if (!DND_GetSavingThrow(target, SavingThrow.PetrificationPolymorph, saveMod))
        {
            // stun for 1 round if bash save failed, 1 - 2 for others
            if (damager.CommandType == Command.CommandType.Bash)
                target.Stunned = 1;
            else target.Stunned += (short)RollD(1, 2);

It also partially protects from spell-based stuns. But then what does StunResistance do?

DragonsSpine/GameSystems/Rules/Rules.cs GitLab 
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    case "stun":
        #region Immune to Stun
        if (target.immuneStun)
        {
            if (caster != null)
            {
                if (target.race != "")
                {
                    caster.WriteToDisplay(target.Name + " is immune to stun based magic.");
                }
                else
                {
                    caster.WriteToDisplay("The " + target.Name + " is immune to stun based magic.");
                }
            }
            return 0;
        }
        #endregion
        else if (DND_GetSavingThrow(target, savingThrow, -(target.StunResistance) + casterSL))
        {
            if (caster != null)
            {
                if (target.race != "")
                {
                    caster.WriteToDisplay(target.Name + " resists your Stun spell.");
                }
                else
                {
                    caster.WriteToDisplay("The " + target.Name + " resists your Stun spell.");
                }

So StunResistance is just for a “stun” spell, and ZonkResistance is for all other ways you might get stunned. Interesting. I guess I should add a test for ZonkResistance.

…which fails. Turns out it’s an effect for worn items only, even if I make a potion for it. I’ll have to tackle the worn effect thing, once I’ve exhausted all the potioning. Tomorrow.

Interesting Stuff

More to come

Day 79 code - tests