Change Hydrology to Height Map

Hydrology used raw noise which caused the river system to not produce river's and basins across the entire map. By switching the Hydrology code to height map we can achieve walkable pathing across the entire terrain set.

Author: kthecoder

src/TerrainGen/Terrain_Gen.cpp

@@ -494,7 +494,7 @@ Dictionary TerrainGen::generate(
 
 	for (int x = 1; x < widthx2 - 1; x++) {
 		for (int y = 1; y < heightx2 - 1; y++) {
-			float currentElevation = rawNoise[x][y];
+			float currentElevation = heightMap[x][y];
 			float lowestElevation = currentElevation;
 			int targetX = x;
 			int targetY = y;
@@ -507,7 +507,7 @@ Dictionary TerrainGen::generate(
 
 					int nx = x + dx;
 					int ny = y + dy;
-					float neighborElevation = rawNoise[nx][ny];
+					float neighborElevation = heightMap[nx][ny];
 
 					if (neighborElevation < lowestElevation) {
 						lowestElevation = neighborElevation;
@@ -1217,14 +1217,13 @@ Dictionary TerrainGen::generate(
 
 				// Decide which tile types count as "edge" for the current corner type
 				auto is_edge_for_corner = [&](TileType t) -> bool {
-					return t == RAMP || t == WATER_EDGE || t == CLIFF;
-					// if (tile_id == WATER_CORNER) {
-					// 	return t == WATER_EDGE;
-					// } else if (tile_id == CLIFF_CORNER) {
-					// 	return t == CLIFF;
-					// } else {
-					// 	return t == RAMP;
-					// }
+					if (tile_id == WATER_CORNER) {
+						return t == WATER_EDGE;
+					} else if (tile_id == CLIFF_CORNER) {
+						return t == CLIFF;
+					} else {
+						return t == RAMP;
+					}
 				};
 
 				// Convenience flags for cardinal neighbors