{"id":486,"date":"2011-07-02T16:40:00","date_gmt":"2011-07-02T16:40:00","guid":{"rendered":"http:\/\/www.javacodegeeks.com\/2012\/10\/android-game-development-the-game-idea.html"},"modified":"2012-10-21T20:02:53","modified_gmt":"2012-10-21T20:02:53","slug":"android-game-development-game-idea","status":"publish","type":"post","link":"https:\/\/www.javacodegeeks.com\/2011\/07\/android-game-development-game-idea.html","title":{"rendered":"Android Game Development – The Game Idea"},"content":{"rendered":"
Coming up with an idea for the game<\/strong><\/p>\n

This is the hardest part. Because I am just one guy having limited time I will choose one idea that is realisable in a short time and will contain all elements of an action game.<\/p>\n

So I came up with a story for the game. The story goes like this:<\/p>\n

The end is nigh! Evil robots from outer space have set up factories on the moon and are sending their ever increasing waves of machines to destroy humanity. For what reason? Beats me but they have laser cannons, missiles, brain washing weapons and a lot of other harmful stuff.
\nEvery man for himself! How long before the end? How long can one survive or maybe defeat the machines by reaching the moon base and annihilate the super brain?
\nThat should be enough. Now let\u2019s design something around this story.
\nChecking the Android specs we see that we have limited memory and 480\u00d7800 pixels to play with. The first game that comes to my mind is robotron<\/a>. Waves of robots, missiles from everywhere and 2 joysticks. A perfect setup for a handheld device held horizontally.
\nOne thumb for directions and the other one for shooting the baddies in every direction. A classic shoot\u2019em up.
\nLet\u2019s go retro. Pixelated graphics is cool and the art is in the effects. Will try to do that.<\/p>\n

Let\u2019s design!<\/strong><\/p>\n

We have one guy. He\u2019s got 3 lives and a gun. He\u2019ll be dropped in the middle of a room and some baddies are trying to kill him already.
\nWe have the basic information to sketch out our game structure.
\nBut, we don\u2019t have a name. Let\u2019s see, droids taking over the planet\u2026checked google for \u201cdroidz\u201d and \u201cdroidz game\u201d guess what? No droidz game found. I will name this: \u201cdroidz\u201d.
\nI find it a cool name for the first game using android.<\/p>\n

<\/a><\/div>\n

Above you have a rough mock-up of what the game will look and feel like. The 2 grey circles are the controllers. Imagine the device being held horizontally and you have your thumbs on the circles. Your left thumb will move our hero while the right thumb will fire the weapon. The direction is being controlled by the position of your thumb relative to the circle\u2019s centre.

<\/div> <\/div><\/p>\n

Now that we have the idea let\u2019s identify what we need to get the game done.<\/p>\n

We need the game objects. Currently there are 2 types of actors in this. Our guy and the droids.<\/p>\n

To control our guy we need to receive user input. The user input will be the touch screen. To be more precise the 2 circles defined on the screen. One controls the guy\u2019s position and the other his weapon.<\/p>\n

A typical game architecture looks like this:<\/p>\n

    \n
  1. Process input<\/li>\n
  2. Update state of game objects. This means calculate new positions for every item, check game logic, collisions etc<\/li>\n
  3. Produce sounds<\/li>\n
  4. Render state to screen<\/li>\n
  5. If game is not over repeat from step 1<\/li>\n<\/ol>\n

    For example: Our guy is in the middle. Droids move every 1\/10 of the second towards him. Every tenth of a second we check if the screen was touched and if it was touched we move our guy or fire his weapon. If the weapon was fired we check every tick (that\u2019s 1\/10 s) if the bullett collided with any droid to destroy him. If collided then droid is destroyed and the bullett is also destroyed. If no collision then both droid\u2019s and bullett\u2019s new positions are calculated according to their speed (droid moves 5 pixels every 1\/10 s for ex and the bullett moves 50). We also check if the droid collided (reached) our guy and if so our hero is dead and game over.<\/p>\n

    This is an overview of how this game will work but will extend it as we go.<\/p>\n

    Reference:<\/strong> The Game Idea<\/a> from our JCG<\/a> partner Tamas Jano from “Against The Grain<\/a>” blog.<\/p>\n

    Do not forget to check out our new Android Game<\/i><\/strong> ArkDroid<\/a><\/i><\/strong> (screenshots below). You feedback will be more than helpful!<\/div>\n
    <\/a><\/a><\/a><\/div>\n

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