Description

By itself this mod doesn’t change the technology tree in Kerbal Space Program. Instead, it adds support for other mods to do so more easily.

• Allows part unlocks to be listed in the TechTree ConfigNode rather than having to edit every Part ConfigNode.
• Adds support for using custom textures to create icons for the tech tree.
• Adds a tree selection window to let the player select a tree for each new game.

Installation

Copy the contents of GameData into the Kerbal GameData folder.

Known Issues:

This mod tracks parts by their name field. This means it does not work properly when multiple parts have the same name.

If you would like to disable the option to select a tech tree, change the "allowTreeSelection" field in PluginData/YongeTech_TechTreesExpansion/config.xml from '1' to '0'. This will keep support for the TechTree ConfigNode additions and custom icon support, but remove the option to select a tech tree.

Creating a Tech Tree

The mod adds new support to the TechTree ConfigNode and will create icons for use in a tech tree from custom textures.

TechTree ConfigNode

The mod adds support for new fields and a new subnode in the TechTree ConfigNode. Shown below is a sample TechTree node showing the new fields.

TechTree
{
    title = Sample TechTree
    description = An incomplete TechTree showing the basic setup
    unlockAllStartParts = True

    RDNode
    {
        name = start
        ...
        Unlocks
        {
            part = solidBooster_sm
            part = probeStackAdapter
            part = standardNoseCone
            part = sensorThermometer
            part = basicFin
            partupgrade = LVT-GasGen-propSys
        }
    }
    ...
}

TechTree Node Fields:

title: The name of the tree. Displayed in the tech tree selection window when starting a new game. (approximately a 45 character limit)

description: Single paragraph description of the tree for the player. Displayed in the tech tree selection window when starting a new game. (approximately a 400 character limit)

unlockAllStartParts: If True the mod will automatically unlock all parts in the starting tech node(s), which are any tech nodes with a cost of 0. This is only relevant if No Entry Purchase Required on Research is disabled in difficulty settings.

RDNode:

The RDNode is the same as for the stock game's tech trees. Adding a name field will allow ModuleManager edits to easily add parts to this RDNode's Unlock node.

Unlocks Node:

The Unlocks Node is a new subnode for the RDNode in TechTree. The Unlocks node has a list of "part" fields containing the names of all the parts unlocked by the RDNode. It also supports "partupgrade" fields which take the name of a PARTUPGRADE. PARTUPGRADE are supported by KSP but only seen in mods such as Porkjet's Stock Engine Overhaul (https://kerbalspaceprogram.com/files/PartOverhauls.zip). The mod will read this data and handle editing the TechRequired on all the parts and partupgrades.

Custom Icons

The mod also adds support for custom icons. All icons should be placed in a directory named "RDSimpleIcons". .png and .tga formats are supported. The mod will create a custom icon with the same name as the file, without the extension.

.../RDSimpleIcons/customIcon_tech.png will become "icon = customIcon_tech"

Licence:

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.