Managed to load first mini mod, needs some work before this can work for users

(what happens if we started a game with mod A and then we want to start a game with only mod B?)

core/src/com/unciv/JsonParser.kt

@@ -1,14 +1,17 @@
 package com.unciv
 
 import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.files.FileHandle
 import com.badlogic.gdx.utils.Json
 
 class JsonParser {
 
     private val json = Json().apply { ignoreUnknownFields = true }
 
-    fun <T> getFromJson(tClass: Class<T>, filePath: String): T {
-        val jsonText = Gdx.files.internal(filePath).readString(Charsets.UTF_8.name())
+    fun <T> getFromJson(tClass: Class<T>, filePath: String): T = getFromJson(tClass, Gdx.files.internal(filePath))
+
+    fun <T> getFromJson(tClass: Class<T>, file: FileHandle): T {
+        val jsonText = file.readString(Charsets.UTF_8.name())
         return json.fromJson(tClass, jsonText)
     }
 }

core/src/com/unciv/models/ruleset/Ruleset.kt

@@ -1,5 +1,7 @@
 package com.unciv.models.ruleset
 
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.files.FileHandle
 import com.unciv.JsonParser
 import com.unciv.models.ruleset.tech.TechColumn
 import com.unciv.models.ruleset.tech.Technology
@@ -36,7 +38,7 @@ class Ruleset(load: Boolean = true) {
 
     init {
         if (load) {
-            load()
+            load(Gdx.files.internal("jsons"))
         }
     }
 
@@ -75,9 +77,12 @@ class Ruleset(load: Boolean = true) {
         units.clear()
     }
 
-    fun load(folderPath: String = "jsons") {
+    fun load(folderHandle :FileHandle ) {
         val gameBasicsStartTime = System.currentTimeMillis()
-        val techColumns = jsonParser.getFromJson(Array<TechColumn>::class.java, "$folderPath/Techs.json")
+
+        val techFile =folderHandle.child("Techs.json")
+        if(techFile.exists()) {
+            val techColumns = jsonParser.getFromJson(Array<TechColumn>::class.java, techFile)
             for (techColumn in techColumns) {
                 for (tech in techColumn.techs) {
                     if (tech.cost == 0) tech.cost = techColumn.techCost
@@ -85,22 +90,37 @@ class Ruleset(load: Boolean = true) {
                     technologies[tech.name] = tech
                 }
             }
+        }
 
-        buildings += createHashmap(jsonParser.getFromJson(Array<Building>::class.java, "$folderPath/Buildings.json"))
+        val buildingsFile = folderHandle.child("Buildings.json")
+        if(buildingsFile.exists()) {
+            buildings += createHashmap(jsonParser.getFromJson(Array<Building>::class.java, buildingsFile))
             for (building in buildings.values) {
                 if (building.requiredTech == null) continue
                 val column = technologies[building.requiredTech!!]!!.column
                 if (building.cost == 0)
                     building.cost = if (building.isWonder || building.isNationalWonder) column!!.wonderCost else column!!.buildingCost
             }
+        }
 
-        terrains += createHashmap(jsonParser.getFromJson(Array<Terrain>::class.java, "$folderPath/Terrains.json"))
-        tileResources += createHashmap(jsonParser.getFromJson(Array<TileResource>::class.java, "$folderPath/TileResources.json"))
-        tileImprovements += createHashmap(jsonParser.getFromJson(Array<TileImprovement>::class.java, "$folderPath/TileImprovements.json"))
-        units += createHashmap(jsonParser.getFromJson(Array<BaseUnit>::class.java, "$folderPath/Units.json"))
-        unitPromotions += createHashmap(jsonParser.getFromJson(Array<Promotion>::class.java, "$folderPath/UnitPromotions.json"))
+        val terrainsFile = folderHandle.child("Terrains.json")
+        if(terrainsFile.exists()) terrains += createHashmap(jsonParser.getFromJson(Array<Terrain>::class.java, terrainsFile))
 
-        policyBranches += createHashmap(jsonParser.getFromJson(Array<PolicyBranch>::class.java, "$folderPath/Policies.json"))
+        val resourcesFile = folderHandle.child("TileResources.json")
+        if(resourcesFile.exists()) tileResources += createHashmap(jsonParser.getFromJson(Array<TileResource>::class.java, resourcesFile))
+
+        val improvementsFile = folderHandle.child("TileImprovements.json")
+        if(improvementsFile.exists()) tileImprovements += createHashmap(jsonParser.getFromJson(Array<TileImprovement>::class.java, improvementsFile))
+
+        val unitsFile = folderHandle.child("Units.json")
+        if(unitsFile.exists()) units += createHashmap(jsonParser.getFromJson(Array<BaseUnit>::class.java, unitsFile))
+
+        val promotionsFile = folderHandle.child("UnitPromotions.json")
+        if(promotionsFile.exists()) unitPromotions += createHashmap(jsonParser.getFromJson(Array<Promotion>::class.java, promotionsFile))
+
+        val policiesFile = folderHandle.child("Policies.json")
+        if(policiesFile.exists()) {
+            policyBranches += createHashmap(jsonParser.getFromJson(Array<PolicyBranch>::class.java, policiesFile))
             for (branch in policyBranches.values) {
                 branch.requires = ArrayList()
                 branch.branch = branch
@@ -110,11 +130,16 @@ class Ruleset(load: Boolean = true) {
                 }
                 branch.policies.last().name = branch.name + " Complete"
             }
+        }
 
-        nations += createHashmap(jsonParser.getFromJson(Array<Nation>::class.java, "$folderPath/Nations/Nations.json"))
+        val nationsFile = folderHandle.child("Nations/Nations.json")
+        if(nationsFile.exists()) {
+            nations += createHashmap(jsonParser.getFromJson(Array<Nation>::class.java, nationsFile))
             for (nation in nations.values) nation.setTransients()
+        }
 
-        difficulties += createHashmap(jsonParser.getFromJson(Array<Difficulty>::class.java, "$folderPath/Difficulties.json"))
+        val difficultiesFile = folderHandle.child("Difficulties.json")
+        if(difficultiesFile.exists()) difficulties += createHashmap(jsonParser.getFromJson(Array<Difficulty>::class.java, difficultiesFile))
 
         val gameBasicsLoadTime = System.currentTimeMillis() - gameBasicsStartTime
         println("Loading game basics - " + gameBasicsLoadTime + "ms")

core/src/com/unciv/ui/newgamescreen/NewGameScreenOptionsTable.kt

@@ -38,7 +38,7 @@ class NewGameScreenOptionsTable(val newGameScreen: NewGameScreen, val updatePlay
         addOneCityChallengeCheckbox()
         addIsOnlineMultiplayerCheckbox()
 
-        // addModCheckboxes()
+         addModCheckboxes()
 
         pack()
     }
@@ -222,21 +222,18 @@ class NewGameScreenOptionsTable(val newGameScreen: NewGameScreen, val updatePlay
 
     fun addModCheckboxes() {
 
-        add("{Mods}:".tr()).colspan(2).row()
-
-        val modCheckboxTable = Table().apply { defaults().pad(10f) }
-
         val modFolders = Gdx.files.local("mods")
         val loadableMods = ArrayList<Ruleset>()
 
         for (modFolder in modFolders.list()) {
             if (modFolder.list().any { it.name() == "jsons" }) {
-                val ruleSet = Ruleset(false)
+                val modRuleset = Ruleset(false)
 
                 try {
-                    ruleSet.load(modFolder.path() + "/jsons")
-                    ruleSet.name = modFolder.nameWithoutExtension()
-                    loadableMods.add(ruleset)
+                    modRuleset.load(modFolder.child("jsons"))
+                    modRuleset.name = modFolder.nameWithoutExtension()
+                    loadableMods.add(modRuleset)
+
                 } catch (ex: Exception) {
                     print(ex.message)
                 }
@@ -252,6 +249,11 @@ class NewGameScreenOptionsTable(val newGameScreen: NewGameScreen, val updatePlay
             }
         }
 
+        if(loadableMods.isEmpty()) return
+
+
+        add("{Mods}:".tr()).colspan(2).row()
+        val modCheckboxTable = Table().apply { defaults().pad(10f) }
         for(mod in loadableMods){
             val checkBox = CheckBox(mod.name,CameraStageBaseScreen.skin)
             checkBox.addListener(object : ChangeListener() {
@@ -262,21 +264,10 @@ class NewGameScreenOptionsTable(val newGameScreen: NewGameScreen, val updatePlay
                     updatePlayerPickerTable()
                 }
             })
+            modCheckboxTable.add(checkBox)
         }
 
         add(modCheckboxTable).colspan(2).row()
     }
 
 }
-
-//
-//class Mod(val name:String){
-//    val ruleSet=Ruleset(false)
-//
-//    fun tryLoadRuleset(){
-//        val folderPath="mods/$name"
-//        val jsonsFolderLocation = folderPath+"/jsons"
-//        if(Gdx.files.local(jsonsFolderLocation).exists())
-//
-//    }
-//}

desktop/build.gradle

@@ -51,8 +51,8 @@ for(platform in PackrConfig.Platform.values()) {
         PackrConfig config = new PackrConfig()
         config.platform = platform
 
-        // For Travis
-        if(true) { // change to false for local build
+        def forTravis = true // change to false for local build
+        if(forTravis) {
             if (platform == PackrConfig.Platform.Linux32 || platform == PackrConfig.Platform.Linux64)
                 config.jdk = System.env.'JAVA_HOME'
             // take the jdk straight from the building linux computer