まず最初に、私たちが完全に明確であるように、私も 1 年前に Java のクラスを受講しました。私は基礎を持っていますが、かなり錆びています。自分で Tetris をコーディングしようとしましたが、数日間行き詰まったので、チュートリアルを調べることにしました。http://zetcode.com/tutorials/javagamestutorial/tetris/で「チュートリアル」をチェックアウトしましたが、チュートリアルではなく単なるコードでした。それで、それをよりよく理解するのを助けるために、私自身のテトリスをコーディングすることを期待して、コードを取り、それを単純化し、1つまたは2つのことを変更し、各行が行うと信じていることからコメントを書いてきました.
コードが実際に実行していると思われることを実行しているかどうかを確認する人を探しています。より具体的には、enum 部分、rotate、および random メソッドを使用します。お時間をいただきありがとうございます。噛むことができないほど噛んでいることはわかっていますが、多くのチュートリアルやビデオを調べたり、Java の本を読んだりすることで、すでに多くのことを学びました。今すぐやめたくありません。 .
ここにコードがあります、助けてくれてありがとう：
package tetris; //keeps things tidy
import java.util.Random; //needed for when the random shape generator is used
import java.lang.Math;
import java.util.Arrays;
public class Shape {
enum Tetrominoes { NoShape, SShape, ZShape, IShape, //enum allows to predefine a set of constants and group them together
TShape, OShape, LShape, FShape }; //This is also used to positionally search the array later on using the ordinal() function
private Tetrominoes TetrisShape; //variable stores one of our many Tetrominoes at a time, see enum^
private int IndividualBlockCoordinates[][]; //this array is used to hold the actual coordinates of the Blocks on the board
private int[][][] ShapeCoordinates; //this 3-dimensional array holds pairs of the coordinates of each Tetrominoe if they were centered at (0,0)
//centering at (0,0) instead of using that as a starting Block is really preference, but allows for bettering
//centering of Blocks on the board later
public Shape() //this is the constructor of the class, it is automatically ran because it is a constructor,
{ //have your constructor run methods in order to run them without having to call them individually
IndividualBlockCoordinates = new int[4][2]; //-----------------> this array is used to hold the actual coordinates of the Blocks on the board
setShape(Tetrominoes.NoShape); //------| each line of the array holds a pair of X and Y coordinates for each block of
// | the tetromino
} // |----------------------------->This is THE purpose of the Shape object/class this calls the
// setShape method, which gets the ShapeCoordinates and BlockCoordinates
public void setShape(Tetrominoes shape) //"shape" takes on one of the 8 Tetrominoes
{
ShapeCoordinates = new int[][][]
{
{ { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, //NoShape
{ { 0,-1 }, { 0, 0 }, {-1, 0 }, {-1, 1 } }, //SShape
{ { 0,-1 }, { 0, 0 }, { 1, 0 }, { 1, 1 } }, //ZShape
{ { 0,-1 }, { 0, 0 }, { 0, 1 }, { 0, 2 } }, //IShape
{ {-1, 0 }, { 0, 0 }, { 1, 0 }, { 0, 1 } }, //TShape
{ { 0, 0 }, { 1, 0 }, { 0, 1 }, { 1, 1 } }, //OShape
{ {-1,-1 }, { 0,-1 }, { 0, 0 }, { 0, 1 } }, //LShape
{ { 1,-1 }, { 0,-1 }, { 0, 0 }, { 0, 1 } } //FShape
};
//this nested for loop is the money maker right here. With each loop through, it stores 1 value
for (int i = 0; i < 4 ; i++) //in the IndvidualBlockCorrdinates, therefore, every two loop throughs will provide the x and y value for a singular block
{ //with 8 total loops, it return the pair of coordinates for each of the 4 blocks in a Tetronimoe
for (int j = 0; j < 2; ++j)
{
IndividualBlockCoordinates[i][j] = ShapeCoordinates[shape.ordinal()][i][j];
}
}
TetrisShape = shape; //stores one of the 8 tetronimoes in TetrisShape???
}
private void setX(int index, int x)
{
IndividualBlockCoordinates[index][0] = x; //sets the first element on row (index (0,1,2, or 3)) to x
}
private void setY(int index, int y)
{
IndividualBlockCoordinates[index][1] = y; //sets the second element on row (index (0,1,2, or 3)) to y
}
public int x(int index)
{
return IndividualBlockCoordinates[index][0]; //returns the first element on row (index (0,1,2, or 3)) to x
}
public int y(int index)
{
return IndividualBlockCoordinates[index][1]; //returns the second element on row (index (0,1,2, or 3)) to y
}
public Tetrominoes getShape()
{
return TetrisShape; //returns a TetrisShape(one of the 8 tetronimoes) which also holds individual block coordinates
}
public void setRandomShape()
{
Random randomGenerator = new Random(); //random number generator
int randomInt = randomGenerator.nextInt(7); //picks random numbers from 0 to 7
Tetrominoes[] values = Tetrominoes.values(); //Tetrominoes array name values holds 8 shapes
setShape(values[randomInt+1]); //setShape method is called on one of the 8 shapes represented by values+1, so 1-8 position in enum
} //for example, values[2] retruns enum position 2, or SShape
public int minY() //returns the lowest Y coordinate of each block
{
int m = IndividualBlockCoordinates[0][0]; //initialiezes m, the variable used to find the lowest coordinate to 0,0 in the array
for (int i=0; i < 3; i++) {
m = Math.min(m, IndividualBlockCoordinates[i][1]); //this runs through the first two sets of coordinates and stores the lower of the two
} //as m, it only has to check twice because the lowest coordinate of each piece can be
return m; //found within the first two blocks. m is compared to each of the two, the lowest one is then stored
} //as a new m. It will always be 0 or negative 1
public Shape rotate()
{
Shape RotatedPiece = new Shape();
RotatedPiece.TetrisShape = TetrisShape; //Rotated Tetris Shape now because stored as Tetris Shape
for(int i=0; i<4; i++)
for(int j=0; j<4; j++)
{
RotatedPiece.setX(i, y(i)); //Sets new X value for each piece one by one
RotatedPiece.setY(i, -x(i)); //Sets new Y value for each piece one by one
}
return RotatedPiece; //returns the rotated piece with new coordinates
}
}