#include "../../Platform/stdafx.h"
#include "PistonPieceRenderer.h"
#include "../Lighting.h"
#include "../Tesselator.h"
#include "../../Textures/TextureAtlas.h"
#include "TileRenderer.h"
#include "../../../Minecraft.World/Headers/net.minecraft.world.level.h"
#include "../../../Minecraft.World/Blocks/TileEntities/PistonPieceTileEntity.h"
#include "../../../Minecraft.World/Headers/net.minecraft.world.level.tile.h"

ResourceLocation PistonPieceRenderer::SIGN_LOCATION =
    ResourceLocation(TN_ITEM_SIGN);

PistonPieceRenderer::PistonPieceRenderer() { tileRenderer = NULL; }

void PistonPieceRenderer::render(std::shared_ptr<TileEntity> _entity, double x,
                                 double y, double z, float a, bool setColor,
                                 float alpha, bool useCompiled) {
    // 4J - dynamic cast required because we aren't using templates/generics in
    // our version
    std::shared_ptr<PistonPieceEntity> entity =
        std::dynamic_pointer_cast<PistonPieceEntity>(_entity);

    Tile* tile = Tile::tiles[entity->getId()];
    if (tile != NULL &&
        entity->getProgress(a) <=
            1)  // 4J - changed condition from < to <= as our chunk update is
                // async to main thread and so we can have to render these with
                // progress of 1
    {
        Tesselator* t = Tesselator::getInstance();
        bindTexture(&TextureAtlas::LOCATION_BLOCKS);

        Lighting::turnOff();
        glColor4f(1, 1, 1,
                  1);  // 4J added - this wouldn't be needed in real opengl as
                       // the block render has vertex colours and so this isn't
                       // use, but our pretend gl always modulates with this

        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        glEnable(GL_BLEND);
        glDisable(GL_CULL_FACE);

        t->begin();

        t->offset((float)x - entity->x + entity->getXOff(a),
                  (float)y - entity->y + entity->getYOff(a),
                  (float)z - entity->z + entity->getZOff(a));
        t->color(1, 1, 1);
        if (tile == Tile::pistonExtension && entity->getProgress(a) < 0.5f) {
            // extending arms may appear through the base block
            tileRenderer->tesselatePistonArmNoCulling(tile, entity->x,
                                                      entity->y, entity->z,
                                                      false, entity->getData());
        } else if (entity->isSourcePiston() && !entity->isExtending()) {
            // special case for withdrawing the arm back into the base
            Tile::pistonExtension->setOverrideTopTexture(
                ((PistonBaseTile*)tile)->getPlatformTexture());
            tileRenderer->tesselatePistonArmNoCulling(
                Tile::pistonExtension, entity->x, entity->y, entity->z,
                entity->getProgress(a) < 0.5f, entity->getData());
            Tile::pistonExtension->clearOverrideTopTexture();

            t->offset((float)x - entity->x, (float)y - entity->y,
                      (float)z - entity->z);
            tileRenderer->tesselatePistonBaseForceExtended(
                tile, entity->x, entity->y, entity->z, entity->getData());
        } else {
            tileRenderer->tesselateInWorldNoCulling(tile, entity->x, entity->y,
                                                    entity->z,
                                                    entity->getData(), entity);
        }
        t->offset(0, 0, 0);
        t->end();

        Lighting::turnOn();
    }
}

void PistonPieceRenderer::onNewLevel(Level* level) {
    delete tileRenderer;
    tileRenderer = new TileRenderer(level);
}