package engine.world.weather;

import engine.api.AFTRuntime;
import engine.utils.AFTRandomUtils;
import engine.world.AFTTime;
import javax.microedition.lcdui.Graphics;

/**
 *
 * @author DominaN
 */
public class AFTWeather {

    //Night & Day
    private int[] atmosphere;
    //Weather
    public static AFTWeatherType currentWeather;
    private AFTWeatherType weatherClear;
    private Rain weatherRain;
    private AcidRain weatherAcidRain;
    private Snow weatherSnow;
    //Enviroiment
    public static int temperature;
    private long lastTemperatureCalculate = AFTTime.time;

    public void addWeather(int particle_type, int intensity) {
        createParticles(particle_type, intensity);
    }

    public void createAtmosphere() {
        atmosphere = new int[AFTRuntime.SCREEN_WIDTH * AFTRuntime.SCREEN_HEIGHT];

        //Set (initial) transparency & color of atmosphere
        switch (AFTTime.hours) {
            case 16:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.05f);
                break;
            case 17:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.1f);
                break;
            case 18:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.15f);
                break;
            case 19:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.2f);
                break;
            case 20:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.25f);
                break;
            case 21:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.3f);
                break;
            case 22:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.35f);
                break;
            case 23:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.4f);
                break;
            case 0:
            case 1:
            case 2:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.45f);
                break;
            case 3:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.4f);
                break;
            case 4:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.35f);
                break;
            case 5:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.3f);
                break;
            case 6:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.25f);
                break;
            case 7:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.2f);
                break;
            case 8:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.15f);
                break;
            case 9:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.1f);
                break;
            case 10:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.05f);
                break;
            case 11:
            case 12:
            case 13:
            case 14:
            case 15:
                setAtmosphereColor(0x08, 0x08, 0x20, 0.0f);
                break;
        }

        //Initial weather
        currentWeather = new AFTWeatherType();

        weatherClear = new AFTWeatherType();
        setWeather(weatherClear, AFTRandomUtils.getLong(450, 1800));
    }

    //Fake particles, yes, it's sad =(
    private void createParticles(int particle_type, int intensity) {
        switch (particle_type) {
            case AFTWeatherType.RAIN:
                weatherRain = new Rain(intensity);
                break;
            case AFTWeatherType.ACID_RAIN:
                weatherAcidRain = new AcidRain(intensity);
                break;
            case AFTWeatherType.SNOW:
                weatherSnow = new Snow(intensity);
                break;
        }
    }

    public void calculateEnviroiment() {
        //Random weather
        if (AFTTime.time > currentWeather.precStartTime + currentWeather.precDuration) {
            //Clear
            if (currentWeather.type != AFTWeatherType.CLEAR && AFTRandomUtils.getInt(0, 5000) <= 2) {
                setWeather(weatherClear,  AFTRandomUtils.getLong(450, 1800));
            } else //Rain
            if (weatherRain != null && AFTRandomUtils.getInt(0, 5000) <= 2) {
                setWeather(weatherRain, AFTRandomUtils.getLong(900, 2700));
            } else //Acid rain
            if (weatherAcidRain != null && AFTRandomUtils.getInt(0, 10000) <= 2) {
                setWeather(weatherAcidRain, AFTRandomUtils.getLong(600, 1800));
            } else //Snow
            if (weatherSnow != null) {
                setWeather(weatherSnow, AFTRandomUtils.getLong(900, 2700));
            }
        }

        //Calculate temperature
        if (AFTTime.time - lastTemperatureCalculate > 300) {
            temperature = (AFTTime.hours < 20) ? AFTRandomUtils.getInt(5, 10) : AFTRandomUtils.getInt(-5, 5);
            if (currentWeather.type == AFTWeatherType.RAIN || currentWeather.type == AFTWeatherType.ACID_RAIN) {
                temperature -= AFTRandomUtils.getInt(0, 2);
            }
            lastTemperatureCalculate = AFTTime.time;
        }
    }

    public void draw(Graphics g) {
        //Draw weather
        currentWeather.processWeather(g);

        //So, you already know, what this code doing
        if (AFTTime.minutes == 0 && AFTTime.seconds == 0) {
            switch (AFTTime.hours) {
                case 16:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.05f);
                    break;
                case 17:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.10f);
                    break;
                case 18:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.15f);
                    break;
                case 19:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.20f);
                    break;
                case 20:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.25f);
                    break;
                case 21:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.30f);
                    break;
                case 22:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.35f);
                    break;
                case 23:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.40f);
                    break;
                case 0:
                case 1:
                case 2:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.45f);
                    break;
                case 3:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.40f);
                    break;
                case 4:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.35f);
                    break;
                case 5:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.30f);
                    break;
                case 6:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.25f);
                    break;
                case 7:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.20f);
                    break;
                case 8:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.15f);
                    break;
                case 9:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.10f);
                    break;
                case 10:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.05f);
                    break;
                case 11:
                case 12:
                case 13:
                case 14:
                case 15:
                    setAtmosphereColor(0x08, 0x08, 0x20, 0.0f);
                    break;
            }
        }

        //Draw atmosphere upper layer on virtual screen
        g.drawRGB(atmosphere, 0, AFTRuntime.SCREEN_WIDTH, 0, 0, AFTRuntime.SCREEN_WIDTH, AFTRuntime.SCREEN_HEIGHT, true);
    }

    private void setWeather(AFTWeatherType t, long duration) {
        currentWeather = t;

        currentWeather.precStartTime = AFTTime.time;
        currentWeather.precDuration = duration;
    }

    private void setAtmosphereColor(int r, int g, int b, float transparency) {
        for (int i = 0; i < atmosphere.length; i += 4) {
            atmosphere[i] = atmosphere[i + 1] = atmosphere[i + 2] = atmosphere[i + 3] = (b | g << 8 | r << 16 | (int) (0xff * transparency) << 24);
        }
    }
}