GrowthHandler.java

package joshie.harvest.api.crops;

import joshie.harvest.api.HFApi;
import joshie.harvest.api.calendar.Season;
import net.minecraft.block.state.IBlockState;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.List;

public abstract class GrowthHandler<C extends Crop> {
    /** Add tooltips to the crops
     *  @param list         the tooltiplist
     *  @param crop         the crop
     *  @param debug        debug mode? **/
    @SideOnly(Side.CLIENT)
    public void addInformation(List<String> list, C crop, boolean debug) {
        for (Season season : crop.getSeasons()) {
            list.add(season.getDisplayName());
        }
    }

    /** Returns true if this seed can be planted at this block position
     *  @param world    the world
     *  @param pos      the position to be planted
     *  @param soil     the state of the block clicked on
     *  @param crop     the crop itself
     *  @param original the original position clicked**/
    public boolean canPlantSeedAt(World world, BlockPos pos, IBlockState soil, C crop, BlockPos original) {
        return soil.getBlock().canSustainPlant(soil, world, pos, EnumFacing.UP, crop) && world.isAirBlock(pos.up());
    }

    /** Return true if this crop can grow in this location
     *  @param world        the world
     *  @param pos          the position
     *  @param crop         the crop **/
    public boolean canGrow(World world, BlockPos pos, C crop) {
        return isCorrectSeason(world, pos, crop);
    }

    /** Helper method for matching up seasons **/
    protected boolean isCorrectSeason(World world, BlockPos pos, C crop) {
        Season toMatch = HFApi.calendar.getSeasonAtCoordinates(world, pos);
        if (crop.getSeasons() == null) return false;
        for (Season season : crop.getSeasons()) {
            if (toMatch == season) return true;
        }

        return false;
    }

    /** Called when this crop changes a stage
     *  @param world    the world
     *  @param pos      the position
     *  @param crop     the crop
     *  @param stage the stage the crop was at before growing
     *  @return return the stage the crop should now be at, return 0 if this crop should be removed **/
    public int grow(World world, BlockPos pos, C crop, int stage) {
        if (stage < crop.getStages()) {
            stage++;
        }

        return stage;
    }

    /** Return whether this crop can be harvested or not
     *  @param crop     the crop
     *  @param stage    the current stage of the grow**/
    public boolean canHarvest(C crop, int stage) {
        return stage >= crop.getStages() || (crop.requiresSickle() && stage >= crop.getMinimumCut());
    }
}