X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fworld%2FPlanet.hpp;h=7ac6b570256f7b256679b067ca8887489a4c3c59;hb=b9af958c3f80a966bd31c622a45d0f3375bf2c3a;hp=efc804dae6a88e91cbbacafcbfd2c3cd38798bab;hpb=592c7e6d616f2cfacfd4948e17a4bb72f6444488;p=blobs.git

diff --git a/src/world/Planet.hpp b/src/world/Planet.hpp
index efc804d..7ac6b57 100644
--- a/src/world/Planet.hpp
+++ b/src/world/Planet.hpp
@@ -3,19 +3,21 @@
 
 #include "Body.hpp"
 
+#include "Set.hpp"
 #include "Tile.hpp"
-#include "../graphics/glm.hpp"
 #include "../graphics/SimpleVAO.hpp"
+#include "../math/glm.hpp"
 
 #include <cassert>
 #include <memory>
+#include <vector>
 #include <GL/glew.h>
 
 
 namespace blobs {
 namespace world {
 
-struct Tile;
+class TileType;
 
 /// A planet has six surfaces, numbered 0 to 5, each filled with
 /// sidelength² tiles.
@@ -41,11 +43,13 @@ public:
 		return tiles[IndexOf(surface, x, y)];
 	}
 
+	const TileType &TypeAt(int surface, int x, int y) const;
+
 	/// Convert coordinates into a tile index.
 	int IndexOf(int surface, int x, int y) const {
 		assert(0 <= surface && surface <= 5);
-		assert(0 <= x && x <= sidelength);
-		assert(0 <= y && y <= sidelength);
+		assert(0 <= x && x < sidelength);
+		assert(0 <= y && y < sidelength);
 		return surface * TilesPerSurface() + y * SideLength() + x;
 	}
 	/// The length of the side of each surface.
@@ -61,25 +65,46 @@ public:
 		return 6 * TilesPerSurface();
 	}
 
-	glm::dvec3 TileCenter(int surface, int x, int y) const noexcept;
+	double TileToPosition(int t) const noexcept { return double(t) - Radius(); }
+	int PositionToTile(double p) const noexcept { return int(p + Radius()); }
+
+	// tile coordinates of position on surface
+	glm::ivec2 SurfacePosition(int surface, const glm::dvec3 &) const noexcept;
+	// height of point over surface
+	double SurfaceElevation(int surface, const glm::dvec3 &) const noexcept;
+	// center point of tile on surface at elevation
+	glm::dvec3 TileCenter(int surface, int x, int y, double elevation = 0.0) const noexcept;
+
+	static glm::dvec3 SurfaceNormal(int srf) noexcept {
+		glm::dvec3 nrm(0.0);
+		nrm[(srf + 2) % 3] = srf < 3 ? 1.0 : -1.0;
+		return nrm;
+	}
+	static glm::dmat3 SurfaceOrientation(int srf) noexcept {
+		glm::dmat3 mat(0.0);
+		mat[(srf + 0) % 3][0] = 1.0;
+		mat[(srf + 2) % 3][1] = srf < 3 ? -1.0 : 1.0;
+		mat[(srf + 1) % 3][2] = srf < 3 ? 1.0 : -1.0;
+		return mat;
+	}
 
-	void BuildVAOs();
+	void BuildVAO(const Set<TileType> &);
 	void Draw(app::Assets &, graphics::Viewport &) override;
 
 private:
 	int sidelength;
-	std::unique_ptr<Tile []> tiles;
+	std::vector<Tile> tiles;
 
 	struct Attributes {
 		glm::vec3 position;
 		glm::vec3 tex_coord;
 	};
-	graphics::SimpleVAO<Attributes, unsigned int> vao;
+	std::unique_ptr<graphics::SimpleVAO<Attributes, unsigned int>> vao;
 
 };
 
-void GenerateEarthlike(Planet &) noexcept;
-void GenerateTest(Planet &) noexcept;
+void GenerateEarthlike(const Set<TileType> &, Planet &) noexcept;
+void GenerateTest(const Set<TileType> &, Planet &) noexcept;
 
 }
 }