98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
#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)
|
|
{
|
|
}
|
|
|