From 3b9e3afd449facf5c98ffee50247c80e293f8545 Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Sat, 16 Dec 2017 16:45:46 +0100
Subject: Start adding decorations.

---
 src/game/worldgen.cpp | 78 ++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 58 insertions(+), 20 deletions(-)

(limited to 'src/game/worldgen.cpp')

diff --git a/src/game/worldgen.cpp b/src/game/worldgen.cpp
index 62c8a5e..74a07c7 100644
--- a/src/game/worldgen.cpp
+++ b/src/game/worldgen.cpp
@@ -2,28 +2,66 @@
 
 namespace game {
 
-void worldgen(world::tile_t *tile, world::tile_index_t x,
-              procgen::perlin_noise_t *perlin)
+using namespace world;
+
+void add_decoration(world_t *world, state_t *game, v2f_t x, float noise)
 {
-	float waterlevel, height;
-
-	waterlevel = perlin->get(x, 1000.0f) * 0.3f +
-	             perlin->get(x, 500.0f) * 0.1f;
-
-	height = perlin->get(x, 40.0f) * 0.6f +
-	         perlin->get(x, 20.0f) * 0.25f +
-	         perlin->get(x, 10.0f) * 0.2f +
-	         perlin->get(x, 4.0f) * 0.1f +
-	         perlin->get(x, 1.0f) * 0.05f;
-
-	if (height < waterlevel)
-		tile->type = TILE_WATER;
-	else if (height < waterlevel + 0.1)
-		tile->type = TILE_DIRT;
-	else if (perlin->get(x, 3.0f) > 0.0f)
-		tile->type = TILE_STONE;
+	deco_t *deco;
+	deco_type_t type;
+
+	if (noise < 0.3)
+		return;
+
+	if (noise > 0.45)
+		type = DECO_EYETHING;
+	else if (noise > 0.35)
+		type = DECO_STONE;
 	else
-		tile->type = TILE_DIRT;
+		type = DECO_STONE_SMALL;
+
+	deco = new deco_t(game, type);
+	deco->spawn(world, x);
+	deco->phase_shift = noise * 500.0;
+}
+
+void worldgen(world_t *world, sector_index_t index, sector_t *sector, void *data)
+{
+	state_t *game = (game::state_t*)data;
+
+	for (coord_t ly = 0; ly < SECTOR_SIZE; ly++)
+	for (coord_t lx = 0; lx < SECTOR_SIZE; lx++) {
+		tile_t *tile = sector->tiles + ly * SECTOR_SIZE + lx;
+		tile_index_t tile_index(index[0] * SECTOR_SIZE + lx,
+		                        index[1] * SECTOR_SIZE + ly);
+		v2f_t x;
+		float waterlevel, height;
+		float deco_noise;
+
+		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;
+
+		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)
+			tile->type = TILE_WATER;
+		else if (height < waterlevel + 0.1)
+			tile->type = TILE_DIRT;
+		else if (world->perlin.get(x, 3.0f) > 0.0f)
+			tile->type = TILE_STONE;
+		else
+			tile->type = TILE_DIRT;
+
+		deco_noise = world->perlin.get(x, 0.125559f);
+
+		if (tile->type == TILE_DIRT)
+			add_decoration(world, game, x, deco_noise);
+	}
 }
 
 }
-- 
cgit