Hey y'all, im back, again

This time im working on a jetpack, yes a jetpack

Iv made the item, made it implement IEnergyContainerItem for power, made the model, and rendered it, all that stuff, but how can i make it so when the player is pressing space bar he gets jetpack flight, not creative flight, but ones like Redstone Arsenal had, and the player had to keep his hand on space otherwise he could fall and die

 

Probably would need to create a key event and add to the players velocity when the event is triggered and use:

 

            this.extractEnergyInternal(item, amount, false);

(if your using CoFH api)

 

to extract energy when pressed.

i know how to make it use energy, just the other stuff i dont know how to do

KeyBindings can be referred to here:

 

 

If there is any issues with this, then post them here.

This tutorial is a bit outdated but should still hold the same concept

All right, i think im good with keybinds, how about the flight?

would it go in:

and if so how would i accomplish that

    @Override
    public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
        super.onArmorTick(world, player, itemStack);
    }

player.addVelocity(x, y, z)

or

player.setVelocity

Actually it would probably be better to detect when the button is pressed, then set a boolean to true and send a packet to make the boolean true on the server, this way you don't have the Player moved wrongly or some other alert message going in the server console. And then when it is released send a packet setting it to false and set it to false.

Actually it would probably be better to detect when the button is pressed, then set a boolean to true and send a packet to make the boolean true on the server, this way you don't have the Player moved wrongly or some other alert message going in the server console. And then when it is released send a packet setting it to false and set it to false.

Probably but again im terrible with packets, which is why with everything iv made i haven't used em, ill learn them but idk about rn

would this be correct?

    @Override
    public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
        double x = player.posX;
        double y = player.posX;
        double z = player.posX;
        player.addVelocity(x, y, z);
        super.onArmorTick(world, player, itemStack);
    }

would this be correct?

    @Override
    public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
        double x = player.posX;
        double y = player.posX;
        double z = player.posX;
        player.addVelocity(x, y, z);
        super.onArmorTick(world, player, itemStack);
    }

No x, y, z are different from velocity. Velocity is speed and direction, x, y, z are positions.

yeah i just got that, putting on the jetpack lags  the f*** outta me, RIP minecraft

so what values would i put in to make it how i want?

yeah i just got that, putting on the jetpack lags  the f*** outta me, RIP minecraft

so what values would i put in to make it how i want?

player.addVelocity(0, 0.2/** Running speed 0.1 walking speed*/, 0);

Also you may want to add a cap, y velocity.

yeah i just got that, putting on the jetpack lags  the f*** outta me, RIP minecraft

so what values would i put in to make it how i want?

player.addVelocity(0, 0.2/** Running speed 0.1 walking speed*/, 0);

Also you may want to add a cap, y velocity.

I see, thank you, so i just have to set it to detect the energy stored and if the player is pressing the space bar, and use energy, which should be easy

I got all that stuff sorted but there are 2 problems,

#1 going up is too fast, would i change the

            
player.addVelocity(0, 0.2, 0);
to
player.addVelocity(0, 0.1, 0);

#2 the moment the player touches the ground he takes a ton of damage, even if its just 1 block above, a few more and he is dead, how can i fix that?

 

I got all that stuff sorted but there are 2 problems,

#1 going up is too fast, would i change the

            
player.addVelocity(0, 0.2, 0);
to
player.addVelocity(0, 0.1, 0);

#2 the moment the player touches the ground he takes a ton of damage, even if its just 1 block above, a few more and he is dead, how can i fix that?

Could you post code so I can see what you tried.

    @Override
    public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
        if(KeybindHandler.keybind.isKeyDown()) {
            player.addVelocity(0, 0.2, 0);
        }
        super.onArmorTick(world, player, itemStack);
    }

or do u want my entire class code?

    @Override
    public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
        if(KeybindHandler.keybind.isKeyDown()) {
            player.addVelocity(0, 0.2, 0);
        }
        super.onArmorTick(world, player, itemStack);
    }

or do u want my entire class code?

nah that is good, but i would add an if else statement like

if (player.motionY >= someVelocity) {
     // Do stuff
} else {
     // Add velocity
}

To avoid damage, you need to set the player's fall distance back to 0.

To avoid damage, you need to set the player's fall distance back to 0.

how can i do that?

player.fallDistance = 0;

?

To avoid damage, you need to set the player's fall distance back to 0.

how can i do that?

player.fallDistance = 0;

?

Two ways either Subscribe to the LivingFallEvent or litterally in your onArmorTick constantly set it to 0.

To avoid damage, you need to set the player's fall distance back to 0.

how can i do that?

player.fallDistance = 0;

?

Two ways either Subscribe to the LivingFallEvent or litterally in your onArmorTick constantly set it to 0.

All right ill take care of that in a bit, but running into a bit of a problem,

when i charge up the jetpack in my inventory it also charges all the jetpacks in the world, how do i fix that?

 

To avoid damage, you need to set the player's fall distance back to 0.

how can i do that?

player.fallDistance = 0;

?

Two ways either Subscribe to the LivingFallEvent or litterally in your onArmorTick constantly set it to 0.

All right ill take care of that in a bit, but running into a bit of a problem,

when i charge up the jetpack in my inventory it also charges all the jetpacks in the world, how do i fix that?

Make a ItemStack capability for energy items.

so

@Nullable
    @Override
    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable NBTTagCompound nbt) {
        return super.initCapabilities(stack, nbt);
    }

?

or am is that completely wrong and i have to do something else

so

@Nullable
    @Override
    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable NBTTagCompound nbt) {
        return super.initCapabilities(stack, nbt);
    }

?

or am is that completely wrong and i have to do something else

Post your whole class.

public class LeadJetpack extends ItemArmor implements IEnergyContainerItem {

    public EnergyStorage storage = new EnergyStorage(100000);

    ModelLeadJetpack pack;


    public LeadJetpack(ArmorMaterial materialIn, int renderIndexIn, EntityEquipmentSlot equipmentSlotIn) {
        super(materialIn, renderIndexIn, equipmentSlotIn);
        this.setCreativeTab(TechExpansion.TechExpansion);
        this.setMaxStackSize(1);
        this.setUnlocalizedName("lead_jetpack");
    }

    @SideOnly(Side.CLIENT)
    public net.minecraft.client.model.ModelBiped getArmorModel(EntityLivingBase entityLiving, ItemStack itemStack, EntityEquipmentSlot armorSlot, net.minecraft.client.model.ModelBiped _default)
    {
        return ModelLeadJetpack.INSTANCE;
    }

    @Nullable
    @Override
    public String getArmorTexture(ItemStack stack, Entity entity, EntityEquipmentSlot slot, String type) {
        return super.getArmorTexture(stack, entity, slot, type);
    }

    @Override
    public void onArmorTick(World world, EntityPlayer player, ItemStack itemStack) {
        if(KeybindHandler.keybind.isKeyDown() && storage.getEnergyStored() > 200) {
            storage.setEnergyStored(storage.getEnergyStored() - 50);
            player.addVelocity(0, 0.1, 0);
            player.fallDistance = 0;
        }
        super.onArmorTick(world, player, itemStack);
    }

    @Override
    public int receiveEnergy(ItemStack container, int maxReceive, boolean simulate) {
        return storage.receiveEnergy(maxReceive, simulate);
    }

    @Override
    public int extractEnergy(ItemStack container, int maxExtract, boolean simulate) {
        return 0;
    }

    @Override
    public int getEnergyStored(ItemStack container) {
        return storage.getEnergyStored();
    }

    @Override
    public int getMaxEnergyStored(ItemStack container) {
        return storage.getMaxEnergyStored();
    }

    @Nullable
    @Override
    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable NBTTagCompound nbt) {
        return super.initCapabilities(stack, nbt);
    }
}