From 3d59634ad9a134ce651ad0f75dfb96c1ed00eb96 Mon Sep 17 00:00:00 2001
From: minjaesong <alswo9628@gmail.com>
Date: Mon, 18 Nov 2019 12:52:28 +0900
Subject: [PATCH] renderToPreview()

---
 .../modulebasegame/WorldgenLoadScreen.kt      | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt b/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt
index e3d92fff4..7b672f16d 100644
--- a/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt
+++ b/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt
@@ -1,6 +1,7 @@
 package net.torvald.terrarum.modulebasegame
 
 import com.badlogic.gdx.ScreenAdapter
+import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.Pixmap
 import com.badlogic.gdx.graphics.Texture
 import net.torvald.terrarum.*
@@ -22,6 +23,10 @@ class WorldgenLoadScreen(private val world: GameWorld, screenToBeLoaded: IngameI
     companion object {
         private const val WIDTH_RATIO = 0.6
         private const val PREVIEW_UPDATE_RATE = 1/8f
+
+        private val COL_WALL = Color.WHITE
+        private val COL_TERR = Color(.5f,.5f,.5f,1f)
+        private val COL_AIR = Color.BLACK
     }
 
     private val previewWidth = (AppLoader.screenW * WIDTH_RATIO).roundToInt()
@@ -48,6 +53,21 @@ class WorldgenLoadScreen(private val world: GameWorld, screenToBeLoaded: IngameI
         }
     }
 
+    private fun renderToPreview() {
+        for (y in 0 until previewWidth) {
+            for (x in 0 until previewHeight) {
+                val wx = (world.width / previewWidth * x).toInt()
+                val wy = (world.height / previewHeight * y).toInt()
+                val colT = if (world.getTileFromTerrain(wx, wy) != 0) COL_WALL else COL_TERR
+                val colW = if (world.getTileFromWall(wx, wy) != 0) COL_WALL else COL_AIR
+                val outCol = colW mul colT
+
+                previewPixmap.setColor(outCol)
+                previewPixmap.drawPixel(x, y)
+            }
+        }
+    }
+
     override fun dispose() {
         previewPixmap.dispose()
         previewTexture.dispose()