src/game/worldgen.cpp


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#include "game.hpp"

namespace game {

void worldgen(world::tile_t *tile, world::tile_index_t x,
              procgen::perlin_noise_t *perlin)
{
	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_WALL;
	else if (height < waterlevel + 0.1)
		tile->type = TILE_DIRT;
	else if (perlin->get(x, 3.0f) > 0.0f)
		tile->type = TILE_WALL;
	else
		tile->type = TILE_DIRT;
}

}