mirror of
https://github.com/Relintai/pandemonium_engine.git
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110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
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#include "gsai_follow_path.h"
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#include "../gsai_path.h"
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#include "../gsai_steering_agent.h"
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#include "../gsai_target_acceleration.h"
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Ref<GSAIPath> GSAIFollowPath::get_path() {
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return path;
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}
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void GSAIFollowPath::set_path(const Ref<GSAIPath> &val) {
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path = val;
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}
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float GSAIFollowPath::get_path_offset() const {
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return path_offset;
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}
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void GSAIFollowPath::set_path_offset(const float val) {
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path_offset = val;
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}
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bool GSAIFollowPath::get_is_arrive_enabled() const {
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return is_arrive_enabled;
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}
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void GSAIFollowPath::set_is_arrive_enabled(const bool val) {
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is_arrive_enabled = val;
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}
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float GSAIFollowPath::get_prediction_time() const {
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return prediction_time;
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}
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void GSAIFollowPath::set_prediction_time(const float val) {
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prediction_time = val;
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}
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void GSAIFollowPath::_calculate_steering(Ref<GSAITargetAcceleration> acceleration) {
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ERR_FAIL_COND(!agent.is_valid());
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ERR_FAIL_COND(!path.is_valid());
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Vector3 location;
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if (prediction_time == 0) {
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location = agent->get_position();
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} else {
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location = agent->get_position() + (agent->get_linear_velocity() * prediction_time);
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}
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float distance = path->calculate_distance(location);
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float target_distance = distance + path_offset;
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if (prediction_time > 0 && path->get_is_open()) {
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if (target_distance < path->calculate_distance(agent->get_position())) {
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target_distance = path->get_length();
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}
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}
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Vector3 target_position = path->calculate_target_position(target_distance);
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if (is_arrive_enabled && path->get_is_open()) {
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if (path_offset >= 0) {
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if (target_distance > path->get_length() - deceleration_radius) {
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arrive(acceleration, target_position);
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return;
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}
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} else {
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if (target_distance < deceleration_radius) {
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arrive(acceleration, target_position);
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return;
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}
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}
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}
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Vector3 linear = (target_position - agent->get_position()).normalized();
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linear *= agent->get_linear_acceleration_max();
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acceleration->set_linear(linear);
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acceleration->set_angular(0);
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}
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GSAIFollowPath::GSAIFollowPath() {
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path_offset = 0.0;
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is_arrive_enabled = true;
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prediction_time = 0.0;
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}
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GSAIFollowPath::~GSAIFollowPath() {
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}
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void GSAIFollowPath::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_path"), &GSAIFollowPath::get_path);
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ClassDB::bind_method(D_METHOD("set_path", "value"), &GSAIFollowPath::set_path);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "path", PROPERTY_HINT_RESOURCE_TYPE, "GSAIPath"), "set_path", "get_path");
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ClassDB::bind_method(D_METHOD("get_path_offset"), &GSAIFollowPath::get_path_offset);
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ClassDB::bind_method(D_METHOD("set_path_offset", "value"), &GSAIFollowPath::set_path_offset);
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "path_offset"), "set_path_offset", "get_path_offset");
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ClassDB::bind_method(D_METHOD("get_is_arrive_enabled"), &GSAIFollowPath::get_is_arrive_enabled);
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ClassDB::bind_method(D_METHOD("set_is_arrive_enabled", "value"), &GSAIFollowPath::set_is_arrive_enabled);
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "is_arrive_enabled"), "set_is_arrive_enabled", "get_is_arrive_enabled");
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ClassDB::bind_method(D_METHOD("get_prediction_time"), &GSAIFollowPath::get_prediction_time);
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ClassDB::bind_method(D_METHOD("set_prediction_time", "value"), &GSAIFollowPath::set_prediction_time);
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "prediction_time"), "set_prediction_time", "get_prediction_time");
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}
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