godot/scene/animation/animation_blend_space_2d.cpp
Hein-Pieter van Braam 0e29f7974b Reduce unnecessary COW on Vector by make writing explicit
This commit makes operator[] on Vector const and adds a write proxy to it.  From
now on writes to Vectors need to happen through the .write proxy. So for
instance:

Vector<int> vec;
vec.push_back(10);
std::cout << vec[0] << std::endl;
vec.write[0] = 20;

Failing to use the .write proxy will cause a compilation error.

In addition COWable datatypes can now embed a CowData pointer to their data.
This means that String, CharString, and VMap no longer use or derive from
Vector.

_ALWAYS_INLINE_ and _FORCE_INLINE_ are now equivalent for debug and non-debug
builds. This is a lot faster for Vector in the editor and while running tests.
The reason why this difference used to exist is because force-inlined methods
used to give a bad debugging experience. After extensive testing with modern
compilers this is no longer the case.
2018-07-26 00:54:16 +02:00

567 lines
17 KiB
C++

#include "animation_blend_space_2d.h"
#include "math/delaunay.h"
void AnimationNodeBlendSpace2D::set_tree(AnimationTree *p_player) {
AnimationRootNode::set_tree(p_player);
for (int i = 0; i < blend_points_used; i++) {
blend_points[i].node->set_tree(p_player);
}
}
void AnimationNodeBlendSpace2D::add_blend_point(const Ref<AnimationRootNode> &p_node, const Vector2 &p_position, int p_at_index) {
ERR_FAIL_COND(blend_points_used >= MAX_BLEND_POINTS);
ERR_FAIL_COND(p_node.is_null());
ERR_FAIL_COND(p_node->get_parent().is_valid());
ERR_FAIL_COND(p_at_index < -1 || p_at_index > blend_points_used);
if (p_at_index == -1 || p_at_index == blend_points_used) {
p_at_index = blend_points_used;
} else {
for (int i = blend_points_used - 1; i > p_at_index; i--) {
blend_points[i] = blend_points[i - 1];
}
for (int i = 0; i < triangles.size(); i++) {
for (int j = 0; j < 3; j++) {
if (triangles[i].points[j] >= p_at_index) {
triangles.write[i].points[j]++;
}
}
}
}
blend_points[p_at_index].node = p_node;
blend_points[p_at_index].position = p_position;
blend_points[p_at_index].node->set_parent(this);
blend_points[p_at_index].node->set_tree(get_tree());
blend_points_used++;
if (auto_triangles) {
trianges_dirty = true;
}
}
void AnimationNodeBlendSpace2D::set_blend_point_position(int p_point, const Vector2 &p_position) {
ERR_FAIL_INDEX(p_point, blend_points_used);
blend_points[p_point].position = p_position;
if (auto_triangles) {
trianges_dirty = true;
}
}
void AnimationNodeBlendSpace2D::set_blend_point_node(int p_point, const Ref<AnimationRootNode> &p_node) {
ERR_FAIL_INDEX(p_point, blend_points_used);
ERR_FAIL_COND(p_node.is_null());
if (blend_points[p_point].node.is_valid()) {
blend_points[p_point].node->set_parent(NULL);
blend_points[p_point].node->set_tree(NULL);
}
blend_points[p_point].node = p_node;
blend_points[p_point].node->set_parent(this);
blend_points[p_point].node->set_tree(get_tree());
}
Vector2 AnimationNodeBlendSpace2D::get_blend_point_position(int p_point) const {
ERR_FAIL_INDEX_V(p_point, blend_points_used, Vector2());
return blend_points[p_point].position;
}
Ref<AnimationRootNode> AnimationNodeBlendSpace2D::get_blend_point_node(int p_point) const {
ERR_FAIL_INDEX_V(p_point, blend_points_used, Ref<AnimationRootNode>());
return blend_points[p_point].node;
}
void AnimationNodeBlendSpace2D::remove_blend_point(int p_point) {
ERR_FAIL_INDEX(p_point, blend_points_used);
blend_points[p_point].node->set_parent(NULL);
blend_points[p_point].node->set_tree(NULL);
for (int i = 0; i < triangles.size(); i++) {
bool erase = false;
for (int j = 0; j < 3; j++) {
if (triangles[i].points[j] == p_point) {
erase = true;
break;
} else if (triangles[i].points[j] > p_point) {
triangles.write[i].points[j]--;
}
}
if (erase) {
triangles.remove(i);
i--;
}
}
for (int i = p_point; i < blend_points_used - 1; i++) {
blend_points[i] = blend_points[i + 1];
}
blend_points_used--;
}
int AnimationNodeBlendSpace2D::get_blend_point_count() const {
return blend_points_used;
}
bool AnimationNodeBlendSpace2D::has_triangle(int p_x, int p_y, int p_z) const {
ERR_FAIL_INDEX_V(p_x, blend_points_used, false);
ERR_FAIL_INDEX_V(p_y, blend_points_used, false);
ERR_FAIL_INDEX_V(p_z, blend_points_used, false);
BlendTriangle t;
t.points[0] = p_x;
t.points[1] = p_y;
t.points[2] = p_z;
SortArray<int> sort;
sort.sort(t.points, 3);
for (int i = 0; i < triangles.size(); i++) {
bool all_equal = true;
for (int j = 0; j < 3; j++) {
if (triangles[i].points[j] != t.points[j]) {
all_equal = false;
break;
}
}
if (all_equal)
return true;
}
return false;
}
void AnimationNodeBlendSpace2D::add_triangle(int p_x, int p_y, int p_z, int p_at_index) {
ERR_FAIL_INDEX(p_x, blend_points_used);
ERR_FAIL_INDEX(p_y, blend_points_used);
ERR_FAIL_INDEX(p_z, blend_points_used);
_update_triangles();
BlendTriangle t;
t.points[0] = p_x;
t.points[1] = p_y;
t.points[2] = p_z;
SortArray<int> sort;
sort.sort(t.points, 3);
for (int i = 0; i < triangles.size(); i++) {
bool all_equal = true;
for (int j = 0; j < 3; j++) {
if (triangles[i].points[j] != t.points[j]) {
all_equal = false;
break;
}
}
ERR_FAIL_COND(all_equal);
}
if (p_at_index == -1 || p_at_index == triangles.size()) {
triangles.push_back(t);
} else {
triangles.insert(p_at_index, t);
}
}
int AnimationNodeBlendSpace2D::get_triangle_point(int p_triangle, int p_point) {
_update_triangles();
ERR_FAIL_INDEX_V(p_point, 3, -1);
ERR_FAIL_INDEX_V(p_triangle, triangles.size(), -1);
return triangles[p_triangle].points[p_point];
}
void AnimationNodeBlendSpace2D::remove_triangle(int p_triangle) {
ERR_FAIL_INDEX(p_triangle, triangles.size());
triangles.remove(p_triangle);
}
int AnimationNodeBlendSpace2D::get_triangle_count() const {
return triangles.size();
}
void AnimationNodeBlendSpace2D::set_min_space(const Vector2 &p_min) {
min_space = p_min;
if (min_space.x >= max_space.x) {
min_space.x = max_space.x - 1;
}
if (min_space.y >= max_space.y) {
min_space.y = max_space.y - 1;
}
}
Vector2 AnimationNodeBlendSpace2D::get_min_space() const {
return min_space;
}
void AnimationNodeBlendSpace2D::set_max_space(const Vector2 &p_max) {
max_space = p_max;
if (max_space.x <= min_space.x) {
max_space.x = min_space.x + 1;
}
if (max_space.y <= min_space.y) {
max_space.y = min_space.y + 1;
}
}
Vector2 AnimationNodeBlendSpace2D::get_max_space() const {
return max_space;
}
void AnimationNodeBlendSpace2D::set_snap(const Vector2 &p_snap) {
snap = p_snap;
}
Vector2 AnimationNodeBlendSpace2D::get_snap() const {
return snap;
}
void AnimationNodeBlendSpace2D::set_blend_position(const Vector2 &p_pos) {
blend_pos = p_pos;
}
Vector2 AnimationNodeBlendSpace2D::get_blend_position() const {
return blend_pos;
}
void AnimationNodeBlendSpace2D::set_x_label(const String &p_label) {
x_label = p_label;
}
String AnimationNodeBlendSpace2D::get_x_label() const {
return x_label;
}
void AnimationNodeBlendSpace2D::set_y_label(const String &p_label) {
y_label = p_label;
}
String AnimationNodeBlendSpace2D::get_y_label() const {
return y_label;
}
void AnimationNodeBlendSpace2D::_add_blend_point(int p_index, const Ref<AnimationRootNode> &p_node) {
if (p_index == blend_points_used) {
add_blend_point(p_node, Vector2());
} else {
set_blend_point_node(p_index, p_node);
}
}
void AnimationNodeBlendSpace2D::_set_triangles(const Vector<int> &p_triangles) {
if (auto_triangles)
return;
ERR_FAIL_COND(p_triangles.size() % 3 != 0);
for (int i = 0; i < p_triangles.size(); i += 3) {
add_triangle(p_triangles[i + 0], p_triangles[i + 1], p_triangles[i + 2]);
}
}
Vector<int> AnimationNodeBlendSpace2D::_get_triangles() const {
Vector<int> t;
if (auto_triangles && trianges_dirty)
return t;
t.resize(triangles.size() * 3);
for (int i = 0; i < triangles.size(); i++) {
t.write[i * 3 + 0] = triangles[i].points[0];
t.write[i * 3 + 1] = triangles[i].points[1];
t.write[i * 3 + 2] = triangles[i].points[2];
}
return t;
}
void AnimationNodeBlendSpace2D::_update_triangles() {
if (!auto_triangles || !trianges_dirty)
return;
trianges_dirty = false;
triangles.clear();
if (blend_points_used < 3)
return;
Vector<Vector2> points;
points.resize(blend_points_used);
for (int i = 0; i < blend_points_used; i++) {
points.write[i] = blend_points[i].position;
}
Vector<Delaunay2D::Triangle> triangles = Delaunay2D::triangulate(points);
for (int i = 0; i < triangles.size(); i++) {
add_triangle(triangles[i].points[0], triangles[i].points[1], triangles[i].points[2]);
}
}
Vector2 AnimationNodeBlendSpace2D::get_closest_point(const Vector2 &p_point) {
_update_triangles();
if (triangles.size() == 0)
return Vector2();
Vector2 best_point;
bool first = true;
for (int i = 0; i < triangles.size(); i++) {
Vector2 points[3];
for (int j = 0; j < 3; j++) {
points[j] = get_blend_point_position(get_triangle_point(i, j));
}
if (Geometry::is_point_in_triangle(p_point, points[0], points[1], points[2])) {
return p_point;
}
for (int j = 0; j < 3; j++) {
Vector2 s[2] = {
points[j],
points[(j + 1) % 3]
};
Vector2 closest = Geometry::get_closest_point_to_segment_2d(p_point, s);
if (first || closest.distance_to(p_point) < best_point.distance_to(p_point)) {
best_point = closest;
first = false;
}
}
}
return best_point;
}
void AnimationNodeBlendSpace2D::_blend_triangle(const Vector2 &p_pos, const Vector2 *p_points, float *r_weights) {
if (p_pos.distance_squared_to(p_points[0]) < CMP_EPSILON2) {
r_weights[0] = 1;
r_weights[1] = 0;
r_weights[2] = 0;
return;
}
if (p_pos.distance_squared_to(p_points[1]) < CMP_EPSILON2) {
r_weights[0] = 0;
r_weights[1] = 1;
r_weights[2] = 0;
return;
}
if (p_pos.distance_squared_to(p_points[2]) < CMP_EPSILON2) {
r_weights[0] = 0;
r_weights[1] = 0;
r_weights[2] = 1;
return;
}
Vector2 v0 = p_points[1] - p_points[0];
Vector2 v1 = p_points[2] - p_points[0];
Vector2 v2 = p_pos - p_points[0];
float d00 = v0.dot(v0);
float d01 = v0.dot(v1);
float d11 = v1.dot(v1);
float d20 = v2.dot(v0);
float d21 = v2.dot(v1);
float denom = (d00 * d11 - d01 * d01);
if (denom == 0) {
r_weights[0] = 1;
r_weights[1] = 0;
r_weights[2] = 0;
return;
}
float v = (d11 * d20 - d01 * d21) / denom;
float w = (d00 * d21 - d01 * d20) / denom;
float u = 1.0f - v - w;
r_weights[0] = u;
r_weights[1] = v;
r_weights[2] = w;
}
float AnimationNodeBlendSpace2D::process(float p_time, bool p_seek) {
_update_triangles();
if (triangles.size() == 0)
return 0;
Vector2 best_point;
bool first = true;
int blend_triangle = -1;
float blend_weights[3] = { 0, 0, 0 };
for (int i = 0; i < triangles.size(); i++) {
Vector2 points[3];
for (int j = 0; j < 3; j++) {
points[j] = get_blend_point_position(get_triangle_point(i, j));
}
if (Geometry::is_point_in_triangle(blend_pos, points[0], points[1], points[2])) {
blend_triangle = i;
_blend_triangle(blend_pos, points, blend_weights);
break;
}
for (int j = 0; j < 3; j++) {
Vector2 s[2] = {
points[j],
points[(j + 1) % 3]
};
Vector2 closest = Geometry::get_closest_point_to_segment_2d(blend_pos, s);
if (first || closest.distance_to(blend_pos) < best_point.distance_to(blend_pos)) {
best_point = closest;
blend_triangle = i;
first = false;
float d = s[0].distance_to(s[1]);
if (d == 0.0) {
blend_weights[j] = 1.0;
blend_weights[(j + 1) % 3] = 0.0;
blend_weights[(j + 2) % 3] = 0.0;
} else {
float c = s[0].distance_to(closest) / d;
blend_weights[j] = 1.0 - c;
blend_weights[(j + 1) % 3] = c;
blend_weights[(j + 2) % 3] = 0.0;
}
}
}
}
ERR_FAIL_COND_V(blend_triangle == -1, 0); //should never reach here
int triangle_points[3];
for (int j = 0; j < 3; j++) {
triangle_points[j] = get_triangle_point(blend_triangle, j);
}
first = true;
float mind;
for (int i = 0; i < blend_points_used; i++) {
bool found = false;
for (int j = 0; j < 3; j++) {
if (i == triangle_points[j]) {
//blend with the given weight
float t = blend_node(blend_points[i].node, p_time, p_seek, blend_weights[j], FILTER_IGNORE, false);
if (first || t < mind) {
mind = t;
first = false;
}
found = true;
break;
}
}
if (!found) {
//ignore
blend_node(blend_points[i].node, p_time, p_seek, 0, FILTER_IGNORE, false);
}
}
return mind;
}
String AnimationNodeBlendSpace2D::get_caption() const {
return "BlendSpace2D";
}
void AnimationNodeBlendSpace2D::_validate_property(PropertyInfo &property) const {
if (property.name.begins_with("blend_point_")) {
String left = property.name.get_slicec('/', 0);
int idx = left.get_slicec('_', 2).to_int();
if (idx >= blend_points_used) {
property.usage = 0;
}
}
AnimationRootNode::_validate_property(property);
}
void AnimationNodeBlendSpace2D::set_auto_triangles(bool p_enable) {
auto_triangles = p_enable;
if (auto_triangles) {
trianges_dirty = true;
}
}
bool AnimationNodeBlendSpace2D::get_auto_triangles() const {
return auto_triangles;
}
void AnimationNodeBlendSpace2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("add_blend_point", "node", "pos", "at_index"), &AnimationNodeBlendSpace2D::add_blend_point, DEFVAL(-1));
ClassDB::bind_method(D_METHOD("set_blend_point_position", "point", "pos"), &AnimationNodeBlendSpace2D::set_blend_point_position);
ClassDB::bind_method(D_METHOD("get_blend_point_position", "point"), &AnimationNodeBlendSpace2D::get_blend_point_position);
ClassDB::bind_method(D_METHOD("set_blend_point_node", "point", "node"), &AnimationNodeBlendSpace2D::set_blend_point_node);
ClassDB::bind_method(D_METHOD("get_blend_point_node", "point"), &AnimationNodeBlendSpace2D::get_blend_point_node);
ClassDB::bind_method(D_METHOD("remove_blend_point", "point"), &AnimationNodeBlendSpace2D::remove_blend_point);
ClassDB::bind_method(D_METHOD("get_blend_point_count"), &AnimationNodeBlendSpace2D::get_blend_point_count);
ClassDB::bind_method(D_METHOD("add_triangle", "x", "y", "z", "at_index"), &AnimationNodeBlendSpace2D::add_triangle, DEFVAL(-1));
ClassDB::bind_method(D_METHOD("get_triangle_point", "triangle", "point"), &AnimationNodeBlendSpace2D::get_triangle_point);
ClassDB::bind_method(D_METHOD("remove_triangle", "triangle"), &AnimationNodeBlendSpace2D::remove_triangle);
ClassDB::bind_method(D_METHOD("get_triangle_count"), &AnimationNodeBlendSpace2D::get_triangle_count);
ClassDB::bind_method(D_METHOD("set_min_space", "min_space"), &AnimationNodeBlendSpace2D::set_min_space);
ClassDB::bind_method(D_METHOD("get_min_space"), &AnimationNodeBlendSpace2D::get_min_space);
ClassDB::bind_method(D_METHOD("set_max_space", "max_space"), &AnimationNodeBlendSpace2D::set_max_space);
ClassDB::bind_method(D_METHOD("get_max_space"), &AnimationNodeBlendSpace2D::get_max_space);
ClassDB::bind_method(D_METHOD("set_snap", "snap"), &AnimationNodeBlendSpace2D::set_snap);
ClassDB::bind_method(D_METHOD("get_snap"), &AnimationNodeBlendSpace2D::get_snap);
ClassDB::bind_method(D_METHOD("set_blend_position", "pos"), &AnimationNodeBlendSpace2D::set_blend_position);
ClassDB::bind_method(D_METHOD("get_blend_position"), &AnimationNodeBlendSpace2D::get_blend_position);
ClassDB::bind_method(D_METHOD("set_x_label", "text"), &AnimationNodeBlendSpace2D::set_x_label);
ClassDB::bind_method(D_METHOD("get_x_label"), &AnimationNodeBlendSpace2D::get_x_label);
ClassDB::bind_method(D_METHOD("set_y_label", "text"), &AnimationNodeBlendSpace2D::set_y_label);
ClassDB::bind_method(D_METHOD("get_y_label"), &AnimationNodeBlendSpace2D::get_y_label);
ClassDB::bind_method(D_METHOD("_add_blend_point", "index", "node"), &AnimationNodeBlendSpace2D::_add_blend_point);
ClassDB::bind_method(D_METHOD("_set_triangles", "triangles"), &AnimationNodeBlendSpace2D::_set_triangles);
ClassDB::bind_method(D_METHOD("_get_triangles"), &AnimationNodeBlendSpace2D::_get_triangles);
ClassDB::bind_method(D_METHOD("set_auto_triangles", "enable"), &AnimationNodeBlendSpace2D::set_auto_triangles);
ClassDB::bind_method(D_METHOD("get_auto_triangles"), &AnimationNodeBlendSpace2D::get_auto_triangles);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_triangles", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_auto_triangles", "get_auto_triangles");
for (int i = 0; i < MAX_BLEND_POINTS; i++) {
ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "blend_point_" + itos(i) + "/node", PROPERTY_HINT_RESOURCE_TYPE, "AnimationRootNode", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL | PROPERTY_USAGE_DO_NOT_SHARE_ON_DUPLICATE), "_add_blend_point", "get_blend_point_node", i);
ADD_PROPERTYI(PropertyInfo(Variant::VECTOR2, "blend_point_" + itos(i) + "/pos", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_blend_point_position", "get_blend_point_position", i);
}
ADD_PROPERTY(PropertyInfo(Variant::POOL_INT_ARRAY, "triangles", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_triangles", "_get_triangles");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "min_space", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_min_space", "get_min_space");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "max_space", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_max_space", "get_max_space");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "snap", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_snap", "get_snap");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "blend_position", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_blend_position", "get_blend_position");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "x_label", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_x_label", "get_x_label");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "y_label", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_y_label", "get_y_label");
}
AnimationNodeBlendSpace2D::AnimationNodeBlendSpace2D() {
auto_triangles = true;
blend_points_used = 0;
max_space = Vector2(1, 1);
min_space = Vector2(-1, -1);
snap = Vector2(0.1, 0.1);
x_label = "x";
y_label = "y";
trianges_dirty = false;
}
AnimationNodeBlendSpace2D::~AnimationNodeBlendSpace2D() {
for (int i = 0; i < blend_points_used; i++) {
blend_points[i].node->set_parent(this);
blend_points[i].node->set_tree(get_tree());
}
}