#include "GeneratorRule.h"

#include "JNoise.h"

GeneratorRule::GeneratorRule(
    Framework::JSON::JSONValue* zConfig, JExpressionMemory* zMemory)
    : ReferenceCounter(),
      noise(0)
{
    if (zConfig->asObject()->hasValue("noise"))
    {
        noise = JNoise::parseNoisse(
            zConfig->asObject()->zValue("noise"), zMemory);
    }
    condition = JExpressionParser::parseBoolExpression(
        zConfig->asObject()->zValue("condition"));
    if (zConfig->asObject()->hasValue("threshold"))
    {
        threshold = (float)zConfig->asObject()
                        ->zValue("threshold")
                        ->asNumber()
                        ->getNumber();
    }
}

GeneratorRule::~GeneratorRule()
{
    if (noise) noise->release();
    if (condition) condition->release();
}

bool GeneratorRule::checkCondition(JExpressionMemory* zMemory)
{
    return condition->getValue(zMemory);
}

Framework::Either<Block*, int> GeneratorRule::generateBlock(
    int x, int y, int z, int dimensionId)
{
    if (!noise || noise->getNoise((double)x, (double)y, (double)z) <= threshold)
        return createBlock(x, y, z, dimensionId);
    return BlockTypeEnum::NO_BLOCK;
}

GeneratorRuleFactory::GeneratorRuleFactory()
    : ReferenceCounter()
{}