BlockStats is upgraded to TileSurvey

src/net/torvald/terrarum/blockstats/BlockStats.kt

@@ -1,59 +0,0 @@
-package net.torvald.terrarum.blockstats
-
-import com.jme3.math.FastMath
-import net.torvald.terrarum.App
-import net.torvald.terrarum.INGAME
-import net.torvald.terrarum.Terrarum
-import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZE
-import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZEF
-import net.torvald.terrarum.gameitems.ItemID
-import net.torvald.terrarum.modulebasegame.TerrarumIngame
-import net.torvald.terrarum.worlddrawer.BlocksDrawer
-
-/**
- * Created by minjaesong on 2016-02-01.
- */
-object BlockStats {
-
-    private val tilestat = HashMap<ItemID, Int>()
-    
-    /**
-     * Update tile stats from tiles on screen
-     */
-    fun update() {
-        tilestat.clear()
-
-        // Get stats on no-zoomed screen area. In other words, will behave as if screen zoom were 1.0
-        // no matter how the screen is zoomed.
-        val map = (INGAME.world)
-        val player = (Terrarum.ingame!! as TerrarumIngame).actorNowPlaying
-        if (player == null) return
-
-        val renderWidth = FastMath.ceil(App.scr.wf)
-        val renderHeight = FastMath.ceil(App.scr.hf)
-
-        val noZoomCameraX = Math.round(FastMath.clamp(
-                player.hitbox.centeredX.toFloat() - renderWidth / 2, TILE_SIZEF, map.width * TILE_SIZE - renderWidth - TILE_SIZEF))
-        val noZoomCameraY = Math.round(FastMath.clamp(
-                player.hitbox.centeredY.toFloat() - renderHeight / 2, TILE_SIZEF, map.width * TILE_SIZE - renderHeight - TILE_SIZEF))
-
-        val for_x_start = noZoomCameraX / TILE_SIZE
-        val for_y_start = noZoomCameraY / TILE_SIZE
-        val for_y_end = BlocksDrawer.clampHTile(for_y_start + (renderHeight / TILE_SIZE) + 2)
-        val for_x_end = BlocksDrawer.clampWTile(for_x_start + (renderWidth / TILE_SIZE) + 2)
-
-        for (y in for_y_start..for_y_end - 1) {
-            for (x in for_x_start..for_x_end - 1) {
-                val tileWall = map.getTileFromWall(x, y)
-                val tileTerrain = map.getTileFromTerrain(x, y)
-                tilestat[tileWall] = 1 + (tilestat[tileWall] ?: 0)
-                tilestat[tileTerrain] = 1 + (tilestat[tileTerrain] ?: 0)
-            }
-        }
-    }
-
-    fun getCount(vararg tiles: ItemID): Int {
-        return tiles.fold(0) { acc, key -> acc + (tilestat[key] ?: 0) }
-    }
-
-}

src/net/torvald/terrarum/blockstats/TileSurvey.kt

@@ -0,0 +1,78 @@
+package net.torvald.terrarum.blockstats
+
+import com.jme3.math.FastMath
+import net.torvald.terrarum.App
+import net.torvald.terrarum.INGAME
+import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.gameworld.GameWorld
+import net.torvald.terrarum.modulebasegame.TerrarumIngame
+import kotlin.math.ceil
+import kotlin.math.floor
+
+/**
+ * Created by minjaesong on 2016-02-01.
+ */
+object TileSurvey {
+
+    data class SurveyProposal(
+        val surveyIdentifier: String,
+        val width: Int,
+        val height: Int,
+        val spatialGranularity: Int, // 1: survey every (w*h) tile, 2: survey every other (w*h/4) tile ...
+        val temporalGranularity: Int, // 1: survey every frame, 2: every other frame ...
+        val predicate: (GameWorld, Int, Int) -> Boolean
+    )
+
+    private val proposals = HashMap<String, SurveyProposal>()
+    private val results = HashMap<String, Pair<Double, Int>>() // (matching tiles/actually surveyed tiles)
+
+    fun submitProposal(proposal: SurveyProposal) {
+        proposals[proposal.surveyIdentifier] = proposal
+    }
+
+    fun withdrawProposal(surveyIdentifier: String) {
+        proposals.remove(surveyIdentifier)
+        results.remove(surveyIdentifier)
+    }
+
+    /**
+     * Update tile stats from tiles on screen
+     */
+    fun update() {
+
+        // Get stats on no-zoomed screen area. In other words, will behave as if screen zoom were 1.0
+        // no matter how the screen is zoomed.
+        val world = INGAME.world
+        val player = (Terrarum.ingame!! as TerrarumIngame).actorNowPlaying
+        if (player == null) return
+
+        proposals.forEach { (_, proposal) ->
+
+            if (INGAME.WORLD_UPDATE_TIMER % proposal.temporalGranularity == 0) {
+                val for_x_start = floor(player.intTilewiseHitbox.centeredX - proposal.width / 2.0).toInt()
+                val for_y_start = floor(player.intTilewiseHitbox.centeredY - proposal.height / 2.0).toInt()
+                val for_x_end = ceil(player.intTilewiseHitbox.centeredX + proposal.width / 2.0).toInt()
+                val for_y_end = ceil(player.intTilewiseHitbox.centeredY + proposal.height / 2.0).toInt()
+
+                var akku = 0
+
+                for (y in for_y_start until for_y_end step proposal.spatialGranularity) {
+                    for (x in for_x_start until for_x_end step proposal.spatialGranularity) {
+                        if (proposal.predicate(world, x, y)) akku += 1
+                    }
+                }
+
+                val surveyedTileCount =
+                    (proposal.width * proposal.height) / (proposal.spatialGranularity * proposal.spatialGranularity)
+                val ratio = akku.toDouble() / surveyedTileCount
+
+                results[proposal.surveyIdentifier] = ratio to akku
+            }
+        }
+    }
+
+    fun getRawCount(surveyIdentifier: String) = results[surveyIdentifier]?.second
+    fun getRatio(surveyIdentifier: String) = results[surveyIdentifier]?.first
+    fun getRatioAndRawCount(surveyIdentifier: String) = results[surveyIdentifier]
+
+}

src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt

@@ -11,7 +11,7 @@ import net.torvald.terrarum.Terrarum.getWorldSaveFiledesc
 import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZE
 import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZED
 import net.torvald.terrarum.blockproperties.BlockPropUtil
-import net.torvald.terrarum.blockstats.BlockStats
+import net.torvald.terrarum.blockstats.TileSurvey
 import net.torvald.terrarum.blockstats.MinimapComposer
 import net.torvald.terrarum.concurrent.ThreadExecutor
 import net.torvald.terrarum.console.AVTracker
@@ -800,7 +800,7 @@ open class TerrarumIngame(batch: FlippingSpriteBatch) : IngameInstance(batch) {
                 WeatherMixer.update(delta, actorNowPlaying, world)
             }
             measureDebugTime("BlockStats.update") {
-                BlockStats.update()
+                TileSurvey.update()
             }
             // fill up visibleActorsRenderFront for wires but not on every update
             measureDebugTime("Ingame.FillUpWiresBuffer*") {

src/net/torvald/terrarum/worlddrawer/FeaturesDrawer.kt

@@ -9,7 +9,7 @@ import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZEF
 import net.torvald.terrarum.blendMul
 import net.torvald.terrarum.blendNormalStraightAlpha
 import net.torvald.terrarum.blockproperties.Block
-import net.torvald.terrarum.blockstats.BlockStats
+import net.torvald.terrarum.blockstats.TileSurvey
 import net.torvald.terrarum.gameworld.GameWorld
 import net.torvald.terrarum.ui.Toolkit
 import kotlin.math.roundToInt
@@ -42,6 +42,19 @@ object FeaturesDrawer {
               Block.SAND_DESERT
             , Block.SAND_RED)
 
+    init {
+        TileSurvey.submitProposal(
+            TileSurvey.SurveyProposal(
+                "basegame.FeaturesDrawer.coldTiles", 72, 48, 2, 2
+            ) { world, x, y -> TILES_COLD.contains(world.getTileFromTerrain(x, y)) }
+        )
+        TileSurvey.submitProposal(
+            TileSurvey.SurveyProposal(
+                "basegame.FeaturesDrawer.warmTiles", 72, 48, 2, 2
+            ) { world, x, y -> TILES_WARM.contains(world.getTileFromTerrain(x, y)) }
+        )
+    }
+
     fun update(delta: Float) {
     }
 
@@ -50,13 +63,12 @@ object FeaturesDrawer {
      * usually targeted for the environmental temperature (desert/winterland), hence the name.
      */
     fun drawEnvOverlay(batch: SpriteBatch) {
-        val onscreen_tiles_max = FastMath.ceil(App.scr.height * App.scr.width / FastMath.sqr(TILE_SIZEF)) * 2
-        val onscreen_tiles_cap = onscreen_tiles_max / 4f
-        val onscreen_cold_tiles = BlockStats.getCount(*TILES_COLD).toFloat()
-        val onscreen_warm_tiles = BlockStats.getCount(*TILES_WARM).toFloat()
+        val onscreen_tiles_cap = 0.3
+        val onscreen_cold_tiles = (TileSurvey.getRatio("basegame.FeaturesDrawer.coldTiles") ?: 0.0).coerceAtMost(onscreen_tiles_cap)
+        val onscreen_warm_tiles = (TileSurvey.getRatio("basegame.FeaturesDrawer.warmTiles") ?: 0.0).coerceAtMost(onscreen_tiles_cap)
 
-        val colTemp_cold = colTempLinearFunc(onscreen_cold_tiles / onscreen_tiles_cap)
-        val colTemp_warm = colTempLinearFunc(-(onscreen_warm_tiles / onscreen_tiles_cap))
+        val colTemp_cold = colTempLinearFunc((onscreen_cold_tiles / onscreen_tiles_cap).toFloat())
+        val colTemp_warm = colTempLinearFunc(-(onscreen_warm_tiles / onscreen_tiles_cap).toFloat())
         colTemp = colTemp_warm + colTemp_cold - ENV_COLTEMP_NOON
         val zoom = Terrarum.ingame?.screenZoom ?: 1f