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#pragma once
#include "ieclass.h"
#include "irender.h"
#include "ifilesystem.h"
#include "math/Vector3.h"
#include "math/AABB.h"
#include "string/string.h"
#include "generic/Lazy.h"
#include "parser/DefTokeniser.h"
#include "decl/DeclarationBase.h"
#include <vector>
#include <map>
#include <memory>
#include <optional>
#include <sigc++/connection.h>
/* FORWARD DECLS */
class Shader;
namespace eclass
{
/// Implementation of the IEntityClass interface.
class EntityClass :
public decl::DeclarationBase<IEntityClass>
{
public:
/// EntityClass pointer type
using Ptr = std::shared_ptr<EntityClass>;
private:
// Parent class pointer (or NULL)
EntityClass* _parent = nullptr;
// UI visibility of this entity class
Lazy<vfs::Visibility> _visibility;
// Should this entity type be treated as a light?
bool _isLight = false;
// Colour of this entity
Vector4 _colour;
bool _colourTransparent = false;
// Does this entity have a fixed size?
bool _fixedSize;
// Map of named EntityAttribute structures. EntityAttributes are picked
// up from the DEF file during parsing. Ignores key case.
using EntityAttributeMap = std::map<std::string, EntityClassAttribute, string::ILess>;
EntityAttributeMap _attributes;
// Flag to indicate inheritance resolved. An EntityClass resolves its
// inheritance by copying all values from the parent onto the child,
// after recursively instructing the parent to resolve its own inheritance.
bool _inheritanceResolved = false;
// Emitted when contents are reloaded
sigc::signal<void> _changedSignal;
bool _blockChangeSignal = false;
sigc::connection _parentChangedConnection;
private:
// Resolve inheritance for this class.
void resolveInheritance();
vfs::Visibility determineVisibilityFromValues();
// Clear all contents (done before parsing from tokens)
void clear();
void parseEditorSpawnarg(const std::string& key, const std::string& value);
void setIsLight(bool val);
// Visit attributes recursively, parent first then child
using InternalAttrVisitor = std::function<void(const EntityClassAttribute&)>;
void forEachAttributeInternal(InternalAttrVisitor visitor,
bool editorKeys) const;
// Return attribute if found, possibly checking parents
EntityClassAttribute* getAttribute(const std::string&, bool includeInherited = true);
public:
/// Construct a named EntityClass
EntityClass(const std::string& name);
~EntityClass();
/// Create a heap-allocated default/empty EntityClass
static Ptr CreateDefault(const std::string& name);
Type getClassType() override;
void emplaceAttribute(EntityClassAttribute&& attribute);
// IEntityClass implementation
IEntityClass* getParent() override;
vfs::Visibility getVisibility() override;
sigc::signal<void>& changedSignal() override;
bool isFixedSize() override;
AABB getBounds() override;
bool isLight() override;
const Vector4& getColour() override;
/// Set the display colour
void setColour(const Vector4& colour) override;
// Resets the colour to the value defined in the attributes
void resetColour();
std::string getAttributeValue(const std::string&, bool includeInherited = true) override;
std::string getAttributeType(const std::string& name) override;
std::string getAttributeDescription(const std::string& name) override;
void forEachAttribute(AttributeVisitor, bool) override;
bool isOfType(const std::string& className) override;
void emitChangedSignal()
{
if (!_blockChangeSignal)
{
_changedSignal.emit();
}
}
void blockChangedSignal(bool block)
{
_blockChangeSignal = block;
}
protected:
// Initialises this class from the given tokens
void parseFromTokens(parser::DefTokeniser& tokeniser) override;
// Clears the structure before parsing
void onBeginParsing() override;
// After parsing, inheritance and colour overrides will be resolved
void onParsingFinished() override;
void onSyntaxBlockAssigned(const decl::DeclarationBlockSyntax& block) override;
};
}
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