add basic types and fix cmake

src/lib/config/WorldConfig.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include "Formula.h"
+
+// Region widths are in tiles (REQ-GW-REGIONS).
+struct WorldRegions
+{
+    int asteroidWidth;
+    int playerBufferWidth;
+    int contestZoneWidth;
+    int enemyBufferWidth;
+};
+
+// Asteroid expansion (REQ-EXP-UNLOCK, REQ-EXP-COST).
+struct WorldExpansion
+{
+    int columnsPerExpansion;
+    int costBuildingBlocks;
+};
+
+// Push scaling (REQ-PSH-*).
+struct WorldPush
+{
+    int pushExpandColumns;
+    double scalingFactor;
+};
+
+// Wave scheduling (REQ-WAV-*).
+struct WorldWaves
+{
+    Formula threatRateFormula;   // threat/s as a function of elapsed game-time seconds
+    Formula shipLevelFormula;    // enemy ship level as a function of elapsed game-time seconds
+    double gapMinSeconds;
+    double gapMaxSeconds;
+    double spawnDurationSeconds;
+};
+
+struct WorldConfig
+{
+    int heightTiles;             // REQ-GW-HEIGHT
+    int refundPercentage;        // REQ-BLD-DEMOLISH
+    double scrapDespawnSeconds;  // REQ-RES-SCRAP-DROP
+
+    WorldRegions regions;
+    WorldExpansion expansion;
+    WorldPush push;
+    WorldWaves waves;
+};