Improve decos: more variations and fewer patterns.

1 files changed, 32 insertions, 9 deletions

diff --git a/src/game/worldgen.cpp b/src/game/worldgen.cpp
index 18a98b5..6ade1a6 100644
--- a/src/game/worldgen.cpp
+++ b/src/game/worldgen.cpp
@@ -4,29 +4,37 @@ namespace game {
 
 using namespace world;
 
-void add_decoration(world_t *world, state_t *game, v2f_t x, float noise)
+void add_decoration(world_t *world, state_t *game, v2f_t x)
 {
+	float noise;
 	deco_t *deco;
 	deco_type_t type;
 	v2f_t center, offset;
 
-	if (noise < 0.3)
+	noise = world->perlin.get(x, 0.53213f) + world->perlin.get(x, 0.12994f);
+	noise = fabs(noise / 2);
+
+	if (noise < 0.16)
 		return;
 
 	offset[0] = world->perlin.get(x, 0.17331f);
 	offset[1] = world->perlin.get(x, 0.19571f);
 	center = x + v2f_t(0.5f, 0.5f) + offset.norm() * 0.1;
 
-	if (noise > 0.5) {
+	if (noise > 0.39) {
 		unit_nest_t *nest = new unit_nest_t(game);
 		nest->place(world, center);
 		return;
 	}
 
-	if (noise > 0.40)
+	if (noise > 0.36)
 		type = DECO_EYETHING;
-	else if (noise > 0.35)
+	else if (noise > 0.33)
 		type = DECO_STONE;
+	else if (noise > 0.26)
+		type = DECO_SPIKE;
+	else if (noise > 0.20)
+		type = DECO_SPIKE_SMALL;
 	else
 		type = DECO_STONE_SMALL;
 
@@ -35,10 +43,14 @@ void add_decoration(world_t *world, state_t *game, v2f_t x, float noise)
 	deco->place(world, x);
 }
 
-void worldgen(world_t *world, sector_index_t index, sector_t *sector, void *data)
+void worldgen(world_t *world, sector_index_t index, sector_t *sector,
+             bool gen_tiles, bool gen_decos, void *data)
 {
 	state_t *game = (game::state_t*)data;
 
+	if (!gen_tiles)
+		goto decos;
+
 	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;
@@ -46,7 +58,6 @@ void worldgen(world_t *world, sector_index_t index, sector_t *sector, void *data
 		                        index[1] * SECTOR_SIZE + ly);
 		v2f_t x;
 		float waterlevel, height;
-		float deco_noise;
 
 		x = v2f_t(index) * SECTOR_SIZE + v2f_t(lx, ly);
 
@@ -67,11 +78,23 @@ void worldgen(world_t *world, sector_index_t index, sector_t *sector, void *data
 			tile->type = TILE_STONE;
 		else
 			tile->type = TILE_DIRT;
+	}
 
-		deco_noise = world->perlin.get(x, 0.125559f);
+decos:
+	if (!gen_decos)
+		return;
+
+	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;
+
+		x = v2f_t(index) * SECTOR_SIZE + v2f_t(lx, ly);
 
 		if (tile->type == TILE_DIRT)
-			add_decoration(world, game, x, deco_noise);
+			add_decoration(world, game, x);
 	}
 }