Updated world module (now voronoi roads work

modules/world/world_height_map.cpp

@@ -0,0 +1,97 @@
+#include <cmath>
+#include "world_height_map.h"
+void WorldHeightMap::_get_property_list(List<PropertyInfo> *p_list) const
+{
+	p_list->push_back(PropertyInfo(Variant::OBJECT, "noise", PROPERTY_HINT_RESOURCE_TYPE, "OpenSimplexNoise"));
+	p_list->push_back(PropertyInfo(Variant::OBJECT, "curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"));
+}
+bool WorldHeightMap::_get(const StringName &p_name, Variant &r_ret) const
+{
+	if (p_name == "noise") {
+		r_ret = noise;
+		return true;
+	} else if (p_name == "curve") {
+		r_ret = curve;
+		return true;
+	}
+
+	const String pv = p_name.operator String();
+	return false;
+}
+
+bool WorldHeightMap::_set(const StringName &p_name, const Variant &p_value)
+{
+	bool update = false;
+	if (p_name == "noise") {
+		noise = p_value;
+		update = true;
+	} else if (p_name == "curve") {
+		curve = p_value;
+		update = true;
+	}
+	if (update) {
+		update_all();
+		_change_notify();
+	}
+
+	return update;
+}
+
+float WorldHeightMap::get_base_steepness(float x, float y)
+{
+	float tstep = 10.0f;
+	float xp = ceil(x / tstep) * tstep;
+	float xm = floor(x / tstep) * tstep;
+	float yp = ceil(y / tstep) * tstep;
+	float ym = floor(y / tstep) * tstep;
+	float hp = curve->interpolate_baked((noise->get_noise_2d(xp, yp) + 1.0f) * 0.5f);
+	float hm = curve->interpolate_baked((noise->get_noise_2d(xp, yp) + 1.0f) * 0.5f);
+	Vector3 d = Vector3(xp, hp, yp) - Vector3(xm, hm, ym);
+	return fabs(cosf(d.angle_to(Vector3(0.0f, 1.0f, 0.0f))));
+}
+float WorldHeightMap::get_surface_height(float x, float y)
+{
+	float s = get_base_steepness(x, y);
+	if (s > 0.5f) {
+		float n = (noise->get_noise_2d(x, y) + 1.0f) * 0.5f;
+		float d = curve->interpolate_baked(n);
+		return d;
+	} else {
+		float tstep = 10.0f;
+		float xp = ceil(x / tstep) * tstep;
+		float xm = floor(x / tstep) * tstep;
+		float yp = ceil(y / tstep) * tstep;
+		float ym = floor(y / tstep) * tstep;
+		float hp = curve->interpolate_baked((noise->get_noise_2d(xp, yp) + 1.0f) * 0.5f);
+		float hm = curve->interpolate_baked((noise->get_noise_2d(xp, yp) + 1.0f) * 0.5f);
+		float d = Vector2(xm, ym).distance_to(Vector2(x, y)) / Vector2(xm, ym).distance_to(Vector2(xp, yp));
+		return hp * d + hm * (1.0f - d);
+	}
+}
+float WorldHeightMap::get_base_height(float x, float y)
+{
+	float n = noise->get_noise_2d(x, y); 
+	return n;
+}
+
+void WorldHeightMap::update_all()
+{
+}
+
+WorldHeightMap::WorldHeightMap()
+{
+}
+
+WorldHeightMap::~WorldHeightMap()
+{
+}
+
+void WorldHeightMap::_bind_methods()
+{
+	ClassDB::bind_method(D_METHOD("get_surface_height", "x", "y"), &WorldHeightMap::get_surface_height);
+	ClassDB::bind_method(D_METHOD("draw_height_map", "draw", "draw_rect", "world_rect"), &WorldHeightMap::draw_height_map);
+}
+void WorldHeightMap::draw_height_map(Node *draw, const Rect2 &draw_rect, const Rect2 &world_rect)
+{
+}
+