From f71cb8a968ba5b284d960d89642c1c62fc9d6f4f Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Thu, 26 Apr 2018 18:32:35 +0200
Subject: Redo the world generation.

---
 src/game/worldgen.cpp | 73 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 40 insertions(+), 33 deletions(-)

diff --git a/src/game/worldgen.cpp b/src/game/worldgen.cpp
index 12bd3b1..d1dd8ad 100644
--- a/src/game/worldgen.cpp
+++ b/src/game/worldgen.cpp
@@ -95,11 +95,11 @@ just_decos:
 		break;
 
 	case TILE_GRAVEL:
-		if (noise > 0.26)
+		if (noise > 0.25)
 			type = DECO_CRYSTAL;
-		else if (noise > 0.25)
+		else if (noise > 0.21)
 			type = DECO_STONE;
-		else if (noise > 0.13)
+		else if (noise > 0.12)
 			type = DECO_STONE_SMALL;
 		else
 			return;
@@ -128,45 +128,52 @@ void worldgen(world_t *world, sector_index_t index, sector_t *sector,
 		tile_index_t tile_index(index[0] * SECTOR_SIZE + lx,
 		                        index[1] * SECTOR_SIZE + ly);
 		v2f_t x;
-		float biome, waterlevel, height;
+		float waterlevel, height, biome;
 
 		x = v2f_t(index) * SECTOR_SIZE + v2f_t(lx, ly);
 
 		waterlevel = world->perlin.get(x, 1000.0f) * 0.3f +
-			     world->perlin.get(x, 500.0f) * 0.1f;
+		             world->perlin.get(x, 500.0f) * 0.1f;
 
-		biome = world->perlin.get(-x + v2f_t(-60, 120), 160.0f) * 0.4f +
-		        world->perlin.get(x, 30.0f) * 0.2f +
-		        world->perlin.get(x, 8.0f) * 0.03f;
+		height = world->perlin.get(x, 40.0f) * 0.6f +
+		         world->perlin.get(x, 20.0f) * 0.25f +
+		         world->perlin.get(x, 10.0f) * 0.2f +
+		         world->perlin.get(x, 4.0f) * 0.1f +
+		         world->perlin.get(x, 1.0f) * 0.05f;
 
+		if (height > waterlevel + 0.12f) {
+			float noise1, noise2;
 
-		height = world->perlin.get(x, 40.0f) * 0.6f +
-			 world->perlin.get(x, 20.0f) * 0.25f +
-			 world->perlin.get(x, 10.0f) * 0.2f +
-			 world->perlin.get(x, 4.0f) * 0.1f +
-			 world->perlin.get(x, 1.0f) * 0.05f;
-
-		if (biome < 0.0f) {
-			if (height < waterlevel)
-				tile->type = TILE_WATER;
-			else if (height < waterlevel + 0.12)
-				tile->type = TILE_DIRT;
-			else if (world->perlin.get(x, 4.0f) > 0.0f)
-				tile->type = TILE_STONE;
-			else
-				tile->type = TILE_DIRT;
-		} else if (biome < 0.1f) {
-			if (height < waterlevel - 0.07f)
-				tile->type = TILE_STONE;
-			else
+			noise1 = world->perlin.get(x, 2.6f) +
+			         world->perlin.get(x, 7.0f);
+
+			noise2 = world->perlin.get(x, 10.0f);
+
+			if (height > waterlevel + 0.18f + noise1 * 0.16f ||
+			    noise2 > 0.3f)
 				tile->type = TILE_GRAVEL;
-		} else {
-			if (height < waterlevel)
-				tile->type = TILE_DIRT_RED;
-			else if (world->perlin.get(x, 3.0f) > 0.0f)
-				tile->type = TILE_STONE_RED;
 			else
-				tile->type = TILE_DIRT_RED;
+				tile->type = TILE_STONE;
+		
+		} else if (height > waterlevel)
+			tile->type = TILE_DIRT;
+		else
+			tile->type = TILE_WATER;
+
+		biome = world->perlin.get(x, 60.0f) * 0.6f +
+		        world->perlin.get(x, 30.0f) * 0.25f +
+		        world->perlin.get(x, 15.0f) * 0.2f +
+		        world->perlin.get(x, 7.0f) * 0.1f +
+		        world->perlin.get(x, 3.0f) * 0.05f;
+
+		if (biome > 0.2f) switch (tile->type) {
+		case TILE_DIRT:
+			tile->type = TILE_DIRT_RED;
+			break;
+
+		case TILE_STONE:
+			tile->type = TILE_STONE_RED;
+			break;
 		}
 	}
 
-- 
cgit