Draw My Thing Minecraft
Alethia Tiell
Minecraft is a sandbox construction game where you are thrown into a world and you need to adapt, explore and survive. It can be overwhelming and difficult to just jump right in, so this tutorial is to give you the basics of how to get started and survive your first day in Minecraft.
Survival: With survival, you are thrown into a world and must fend to survive. You can change the difficulty (difficulties outlined below), and you must gather all the resources you need to survive.
Creative: You start with everything you could ever find or create in the game (instead of your inventory screen you have a selection screen where you can pick out anything to use). Instead of needing tools to destroy blocks, you can break anything with one hit. You do not have to worry about eating or a health bar. You cannot die even if you jump off a cliff or walk through lava. Lastly, you can fly!
You never know what it is going to be. It could be a flat desert with nothing for miles, you could immediately be left on an island surrounded by water, or you could get a perfect world with trees and caves aplenty. You will have to adapt to your surroundings right away. Also, make sure to watch your step or you could fall into a cave right away. If you are lucky, you will just take damage, but you could die or you could be stuck in a hole with no light and no supplies to make weapons. So watch your step! Wherever you start is your spawn point. If you die, you will appear back where you first started the game.
*Tip: Sometimes the trees are too tall to break all the blocks from the ground. One thing you can do is skip the first (bottom) block and break the two above it. Then you can stand on that block and look up and continue to break all the blocks of the trunk. When you are done, hop down and break the block you were standing on. If you break all the wood of the tree, the leaves will slowly disappear and can drop saplings for planting and even apples!
If the tree is way too tall, you can create a Nerd Pole. A nerd pole is when you look straight down, jump and then lay a block down so you can create a pole while standing on it. I suggest to use dirt as it is easy to re-destroy. To get down, just look down and break the dirt until you are on ground level. (You can also just jump down and leave the dirt if you don't care about it and you aren't too high that you will get hurt.)
Once you have wood, you can create a crafting table. That is one of the things you can create in your inventory crafting grid (2 by 2) (many things take a crafting station crafting grid to create them).
One of the easiest ways to do this is find a dirt hill and carve out a hole in it. Dirt is nice because you can easily break it with your hands. You can also go into stone, but you will need to make a pickax first.
**You can still be shot by an archer though a 1 by 1 block, so if you leave an opening, make sure there is somewhere you can go in your shelter that is out of view of the opening. Also, cave spiders and baby mobs such as zombies can fit through the hole if they can reach it.
Before you can make tools, you need planks (if you are making wooden tools) and sticks. Also, when it comes to crafting in Minecraft, placement is important. You can have all the right supplies laid out in the crafting grid, but if the are not in the right formation, you will not be able to create what you want.
Light is very important in Minecraft, both for simply being able to see and for preventing hostile mobs from spawning near you. Monsters cannot spawn in the light, so it is important to have light in your shelter.
Once you put a resource in as the fuel, it will immediately burn. Wood burns for a very short time, but things like coal and lava will burn for a while, and whatever you put in there will burn regardless of if you have something you need to cook or smelt. So it is good to be prepared with multiple items to smelt or cook. Also, if you want to smelt different types of things in a row, make sure you remove what you just smelted. For example, if you just smelted charcoal and now you want to smelt iron, you need to remove the charcoal first or there will be nowhere for the new item to go. On the other hand, if you have a stack of iron, you can just put it in the top and walk away and it will go until either the fuel or resource is gone.
You will have to eat. You might not have to on your first day, but the more running and working you do, the more your food bar will go down. There are many things to eat in the world, but on your first couple days you will probably be limited to apples and meat.
When leaves from trees disappear (after you have destroyed the trunk) they sometimes drop apples. If you are lucky you will get one from a tree, so it will be hard to play the game as a vegetarian when you first start.
Your other option is meat. Find an animal (a cow, pig or chicken, sheep only give you wool) and just punch it until it dies. It is horrible, but you have to survive. If you do not have a weapon, it will take quite a few punches and the animal will run in fear after you first hit it so you might have to chase it down. Try not to hit it in a hole. Killing the animal will give you raw meat. You can eat raw meat, but if you eat raw chicken, there is a chance you will get food poisoning.
Everything will refill your hunger bar a different amount. For example, an apple will revive 4 hunger (which is two icons on the hunger bar) and a steak will revive 8 (raw beef will only fill 3). So it is good to keep track of your food and what you need so you make the most of what you have.
Your 10 minutes are up and your first day is over. Hopefully you have not gone far from the shelter you created. Time to get inside and blockade yourself in for the night. It is good to use the nighttime to craft things and mine your shelter out (if you are in a mountain). If you have nothing to do, you are going to have to just hangout until the sun rises. Unless you want to venture out and take a stab at the mobs.
It doesn't matter what color wool or planks you use, you will always get the same bed. Once you sleep in a bed it becomes your new spawn point. So if you die, instead of appearing where you first started the game, you will appear on your bed.
Don't just go running out of your shelter. Though some monsters can't survive in the light, they can hide in the shade or stand in the water to prevent bursting into flames. If you are on the side of a cliff, something will probably jump down on top of you as soon as you step out. Some monsters can survive in the daylight after spawning in the dark (like creepers and spiders), so you might have some of then you need to deal with before you can continue exploring.
I usually run out of my place and look around for anything that could kill me. This also helps draw things away from your shelter. It can be very frustrating to have a creeper blow it up. Make sure to go back and close the door/block the entrance or just anything could wander in.
Directly interacting with the tesselator & buferbuilder is probably not what you want to do unless your already pretty experienced in OpenGL and advanced 3D rendering. What are you trying to achieve exactly? What do you mean by complex models and why & where & when will they be used?
You definitely don't need to deal with the tesselator & bufferbuilder for this, look at the Forge Animation API, or you could just inject the models you need into the model registry & render them normally with an entity renderer.
BufferBuilder is just a way to specify a vertex collection for OpenGL to render. A vertex is ultimately just a collection of data OpenGL uses to draw things. At the very minimum it needs the position in world-space to render anything at all.
You start by specifying a format and a draw mode. The draw mode specifies what the vertices mean(ex. 4 means a quad with GL_QUADS) and the format specifies the way the data is aligned in each vertex(ex. POSITION_TEXTURE_COLOR means that each vertex contains 3 floats that specify position, followed by 2 floats that specify the uvs for the texture followed by 4 floats that specify the color). The only thing that might confuse you are BLOCK(3 position, 4 color, 2 texture, 2 lightmap) and ITEM(3 position, 4 color, 2 texture, 3 normal, 1 padding) formats.
Then you specify the vertices based on the format you've selected. You do that by calling the respective methods. For example to specify the position you would call BufferBuilder#pos. Keep in mind that the order must be the same as the order defined by the format(ex. if the format is POSITION_TEXTURE_COLOR the vertex definition would be pos(...).tex(...).color(...)). Then you end the definition of each vertex with BufferBuilder#endVertex similar to how you end sentences with a dot. These methods can conviniently be chained to compact the code. So you can do bufferbuilder.pos(...).tex(...).color(...).normal(....).endVertex();
Knowing that you can easily adapt the BufferBuilder to render a wavefront object. Parse your object in a way that gives you a collection of vertices each containing the data you need(position, uvs, normals) and then simply iterate over the collection adding each vertex to the buffer. As an example here is the way I parse the wavefront into a collection of vertices and upload those vertices to the buffer. As a bonus here is the way I use a FastTESR to render the parsed wavefront into the buffer provided by the FastTESR(with matrix transformations).
Finally I realized that, just like the picture of Karthik that Ihad made, the PNG images I was looking at were the bitmaps. I couldload them into R with theimager package and thengrab the 0s and 1s there. The only thing I needed to do was look atthe images and type in the sets of characters that were inside theimages. For example, for the 6x8 image above, the PNG file is 192 x 24pixels: 24 pixels tall because there are three rows of characters andthey each are 8 characters tall, and 192 pixels wide because there are32 columns of characters and they are each 6 pixels wide.
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