titlescreen moved to modules; using GLES 3.0 as default

src/net/torvald/terrarum/NoModuleDefaultTitlescreen.kt

@@ -0,0 +1,54 @@
+package net.torvald.terrarum
+
+import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.Pixmap
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import com.badlogic.gdx.graphics.glutils.FrameBuffer
+import net.torvald.terrarum.ui.Toolkit
+
+/**
+ * Created by minjaesong on 2021-12-11.
+ */
+class NoModuleDefaultTitlescreen(batch: SpriteBatch) : IngameInstance(batch) {
+
+    private val wot = listOf(
+            "No Module is currently loaded.",
+            "Please review your Load Order on",
+            "assets/mods/LoadOrder.csv"
+    )
+
+    private val maxtw = wot.maxOf { App.fontGame.getWidth(it) }
+
+    private val fbo = FrameBuffer(Pixmap.Format.RGBA8888, App.scr.width, App.scr.height, true)
+
+    private var init = false
+
+    override fun render(updateRate: Float) {
+        gdxClearAndSetBlend(0f, 0f, 0f, 0f)
+
+        if (!init) {
+            val lh = 36f
+            val th = lh * wot.size
+
+            fbo.inAction(null, null) {
+                gdxClearAndSetBlend(.094f, .094f, .094f, 1f)
+                batch.inUse {
+                    batch.color = Color.WHITE
+                    wot.forEachIndexed { index, s ->
+                        App.fontGame.draw(batch, s, (Toolkit.drawWidth - maxtw) / 2f, (App.scr.height - th) / 2f + lh * index)
+                    }
+                }
+            }
+        }
+
+        batch.inUse {
+            batch.draw(fbo.colorBufferTexture, 0f, 0f)
+        }
+    }
+
+    override fun dispose() {
+        super.dispose()
+
+        fbo.dispose()
+    }
+}