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Aria 2025-03-21 22:23:30 +11:00
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#ifndef STAR_BEHAVIOR_DATABASE_HPP
#define STAR_BEHAVIOR_DATABASE_HPP
#include "StarGameTypes.hpp"
#include "StarJson.hpp"
namespace Star {
STAR_CLASS(BehaviorDatabase);
STAR_STRUCT(ActionNode);
STAR_STRUCT(DecoratorNode);
STAR_STRUCT(SequenceNode);
STAR_STRUCT(SelectorNode);
STAR_STRUCT(ParallelNode);
STAR_STRUCT(DynamicNode);
STAR_STRUCT(RandomizeNode);
STAR_STRUCT(BehaviorTree);
typedef Variant<SequenceNode, SelectorNode, ParallelNode, DynamicNode, RandomizeNode> CompositeNode;
typedef Variant<ActionNode, DecoratorNode, CompositeNode, BehaviorTreeConstPtr> BehaviorNode;
typedef std::shared_ptr<const BehaviorNode> BehaviorNodeConstPtr;
enum class NodeParameterType : uint8_t {
Json,
Entity,
Position,
Vec2,
Number,
Bool,
List,
Table,
String
};
extern EnumMap<NodeParameterType> const NodeParameterTypeNames;
typedef Variant<String, Json> NodeParameterValue;
typedef pair<NodeParameterType, NodeParameterValue> NodeParameter;
typedef pair<NodeParameterType, pair<Maybe<String>, bool>> NodeOutput;
NodeParameterValue nodeParameterValueFromJson(Json const& json);
Json jsonFromNodeParameter(NodeParameter const& parameter);
NodeParameter jsonToNodeParameter(Json const& json);
Json jsonFromNodeOutput(NodeOutput const& output);
NodeOutput jsonToNodeOutput(Json const& json);
enum class BehaviorNodeType : uint16_t {
Action,
Decorator,
Composite,
Module
};
extern EnumMap<BehaviorNodeType> const BehaviorNodeTypeNames;
enum class CompositeType : uint16_t {
Sequence,
Selector,
Parallel,
Dynamic,
Randomize
};
extern EnumMap<CompositeType> const CompositeTypeNames;
// replaces global tags in nodeParameters in place
NodeParameterValue replaceBehaviorTag(NodeParameterValue const& parameter, StringMap<NodeParameterValue> const& treeParameters);
Maybe<String> replaceOutputBehaviorTag(Maybe<String> const& output, StringMap<NodeParameterValue> const& treeParameters);
void applyTreeParameters(StringMap<NodeParameter>& nodeParameters, StringMap<NodeParameterValue> const& treeParameters);
struct ActionNode {
ActionNode(String name, StringMap<NodeParameter> parameters, StringMap<NodeOutput> output);
String name;
StringMap<NodeParameter> parameters;
StringMap<NodeOutput> output;
};
struct DecoratorNode {
DecoratorNode(String const& name, StringMap<NodeParameter> parameters, BehaviorNodeConstPtr child);
String name;
StringMap<NodeParameter> parameters;
BehaviorNodeConstPtr child;
};
struct SequenceNode {
SequenceNode(List<BehaviorNodeConstPtr> children);
List<BehaviorNodeConstPtr> children;
};
struct SelectorNode {
SelectorNode(List<BehaviorNodeConstPtr> children);
List<BehaviorNodeConstPtr> children;
};
struct ParallelNode {
ParallelNode(StringMap<NodeParameter>, List<BehaviorNodeConstPtr> children);
int succeed;
int fail;
List<BehaviorNodeConstPtr> children;
};
struct DynamicNode {
DynamicNode(List<BehaviorNodeConstPtr> children);
List<BehaviorNodeConstPtr> children;
};
struct RandomizeNode {
RandomizeNode(List<BehaviorNodeConstPtr> children);
List<BehaviorNodeConstPtr> children;
};
struct BehaviorTree {
BehaviorTree(String const& name, StringSet scripts, JsonObject const& parameters);
String name;
StringSet scripts;
StringSet functions;
JsonObject parameters;
BehaviorNodeConstPtr root;
};
typedef std::shared_ptr<const BehaviorNode> BehaviorNodeConstPtr;
class BehaviorDatabase {
public:
BehaviorDatabase();
BehaviorTreeConstPtr behaviorTree(String const& name) const;
BehaviorTreeConstPtr buildTree(Json const& config, StringMap<NodeParameterValue> const& overrides = {}) const;
Json behaviorConfig(String const& name) const;
private:
StringMap<Json> m_configs;
StringMap<BehaviorTreeConstPtr> m_behaviors;
StringMap<StringMap<NodeParameter>> m_nodeParameters;
StringMap<StringMap<NodeOutput>> m_nodeOutput;
void loadTree(String const& name);
// constructs node variants
CompositeNode compositeNode(Json const& config, StringMap<NodeParameter> parameters, StringMap<NodeParameterValue> const& treeParameters, BehaviorTree& tree) const;
BehaviorNodeConstPtr behaviorNode(Json const& json, StringMap<NodeParameterValue> const& treeParameters, BehaviorTree& tree) const;
};
}
#endif