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#include "entityfactory.h"
#include <libxml/parser.h>
#include "muxer.h"
#include <cstdio>
#include <map>
#include <list>
#include "components/static_image.h"
#include "components/simple_collider.h"
#include "components/physics_body.h"
#include "components/ai.h"
#include "game.h"
void parseEntityAIData(AI& ai, xmlNodePtr node, const std::map<std::string, int>& items)
{
xmlChar* key;
for (xmlNodePtr aiNode = node->xmlChildrenNode; aiNode != NULL; aiNode = aiNode->next)
{
if (!xmlStrcmp(aiNode->name, (xmlChar*) "move"))
{
MoveAIAction::Direction dir;
int len;
int speed;
key = xmlGetProp(aiNode, (xmlChar*) "direction");
if (key == 0) exit(2);
if (!xmlStrcmp(key, (xmlChar*) "left"))
{
dir = MoveAIAction::Direction::Left;
} else if (!xmlStrcmp(key, (xmlChar*) "right"))
{
dir = MoveAIAction::Direction::Right;
} else if (!xmlStrcmp(key, (xmlChar*) "up"))
{
dir = MoveAIAction::Direction::Up;
} else if (!xmlStrcmp(key, (xmlChar*) "down"))
{
dir = MoveAIAction::Direction::Down;
} else {
exit(2);
}
xmlFree(key);
key = xmlGetProp(aiNode, (xmlChar*) "length");
if (key != 0)
{
len = atoi((char*) key);
} else {
key = xmlGetProp(aiNode, (xmlChar*) "length-var");
if (key == 0) exit(2);
std::string varName = (char*) key;
len = items.at(varName);
}
xmlFree(key);
key = xmlGetProp(aiNode, (xmlChar*) "speed");
if (key != 0)
{
speed = atoi((char*) key);
} else {
key = xmlGetProp(aiNode, (xmlChar*) "speed-var");
if (key == 0) exit(2);
std::string varName = (char*) key;
speed = items.at(varName);
}
xmlFree(key);
ai.addAction(std::make_shared<MoveAIAction>(dir, len, speed));
} else if (!xmlStrcmp(aiNode->name, (xmlChar*) "switch"))
{
key = xmlGetProp(aiNode, (xmlChar*) "item");
if (key == 0) exit(2);
std::string switchItem = (char*) key;
xmlFree(key);
for (xmlNodePtr switchNode = aiNode->xmlChildrenNode; switchNode != NULL; switchNode = switchNode->next)
{
if (!xmlStrcmp(switchNode->name, (xmlChar*) "case"))
{
key = xmlGetProp(switchNode, (xmlChar*) "value");
if (key == 0) exit(2);
int caseValue = atoi((char*) key);
xmlFree(key);
if (items.at(switchItem) == caseValue)
{
parseEntityAIData(ai, switchNode, items);
}
}
}
}
}
}
std::shared_ptr<Entity> EntityFactory::createNamedEntity(const std::string name, const std::map<std::string, int>& items)
{
xmlDocPtr doc = xmlParseFile("res/entities.xml");
if (doc == nullptr)
{
fprintf(stderr, "Error reading entities\n");
exit(-1);
}
xmlNodePtr top = xmlDocGetRootElement(doc);
if (top == nullptr)
{
fprintf(stderr, "Empty entities file\n");
exit(-1);
}
if (xmlStrcmp(top->name, (const xmlChar*) "entities"))
{
fprintf(stderr, "Invalid entities definition\n");
exit(-1);
}
auto entity = std::make_shared<Entity>();
xmlChar* key;
for (xmlNodePtr node = top->xmlChildrenNode; node != NULL; node = node->next)
{
if (!xmlStrcmp(node->name, (xmlChar*) "entity"))
{
key = xmlGetProp(node, (xmlChar*) "id");
if (key == 0) exit(-1);
std::string entityID = (char*) key;
xmlFree(key);
if (entityID == name)
{
key = xmlGetProp(node, (xmlChar*) "sprite");
if (key == 0) exit(-1);
auto spriteComponent = std::make_shared<StaticImageComponent>((char*) key);
entity->addComponent(spriteComponent);
xmlFree(key);
auto physicsComponent = std::make_shared<PhysicsBodyComponent>();
entity->addComponent(physicsComponent);
key = xmlGetProp(node, (xmlChar*) "width");
if (key == 0) exit(-1);
entity->size.first = atoi((char*) key);
xmlFree(key);
key = xmlGetProp(node, (xmlChar*) "height");
if (key == 0) exit(-1);
entity->size.second = atoi((char*) key);
xmlFree(key);
bool addAI = false;
auto aiComponent = std::make_shared<AIComponent>();
for (xmlNodePtr entityNode = node->xmlChildrenNode; entityNode != NULL; entityNode = entityNode->next)
{
if (!xmlStrcmp(entityNode->name, (xmlChar*) "ai"))
{
addAI = true;
xmlChar* chanceKey = xmlGetProp(entityNode, (xmlChar*) "chance");
if (chanceKey == 0) exit(2);
int chance = atoi((char*) chanceKey);
xmlFree(chanceKey);
AI& ai = aiComponent->emplaceAI(chance);
parseEntityAIData(ai, entityNode, items);
}
}
if (addAI)
{
entity->addComponent(aiComponent);
}
break;
}
}
}
xmlFreeDoc(doc);
return entity;
}
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