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Length: 9074 (0x2372)
Types: TextFile
Names: »define_shapes.c«
└─⟦b20c6495f⟧ Bits:30007238 EUUGD18: Wien-båndet, efterår 1987
└─⟦this⟧ »EUUGD18/General/Tetris/define_shapes.c«
/*
** written by adam margulies vespa@ssyx.ucsc.edu
** {...}!ucbvax!ucscc!ssyx!vespa
**
** permission is granted to freely distribute this code provided that you:
**
** 1) don't charge for it
** 2) leave my name and header on it
** 3) clearly document your changes and place your name on them
**
*/
/* Tetris: define_shapes() */
/* */
/* This function defines the shape tables to be used in Tetris. */
/* There are eight possible shapes, each made of four contiguous */
/* blocks. This is the fastest way I know how to make the shape */
/* tables available and it seems to work quite well. The program */
/* accesses the tables using bitwise operators. */
/* */
/* The structure shape contains four table arrays which are the */
/* bitwise representations of the four horizontal lines of each */
/* block, each block being represented on a 4 X 4 grid. Sixteen */
/* such table entries are needed to represent all four rotations */
/* of the block. */
/* */
/* Pointv is the point value for each rotation of the block. */
/* It is used for scoring. */
/* */
/* For drawing and collision detection purposes it is necessary */
/* to know the "height" and "width" of the block for each rotation */
/* The offset records how far from the upper left hand corner of */
/* the 4 X 4 array the block actually starts. It is very fast. */
/* The offset is a flag byte, with the following format: */
/* bit 7 bit 6 bit 5 bit 4
rot0 yoffset, rot0 xoffset, rot1 yoffset, rot1 xoffset,
rot2 yoffset, rot2 xoffset, rot3 yoffset, rot3 xoffset.
bit 3 bit 2 bit 1 bit 0 */
/* */
/* The color variable stores the character that the shape will be */
/* "painted" onto the screen with, it is different for each block. */
/* */
#include "tetris.h"
void define_shapes()
{
/* begin shape 0 definition, four rotations */
shape[0].table[0][0] = 0;
shape[0].table[1][0] = 15; /* #### */
shape[0].table[2][0] = 0;
shape[0].table[3][0] = 0;
shape[0].pointv[0] = 5;
shape[0].table[0][1] = 4; /* # */
shape[0].table[1][1] = 4; /* # */
shape[0].table[2][1] = 4; /* # */
shape[0].table[3][1] = 4; /* # */
shape[0].pointv[1] = 8;
shape[0].table[0][2] = 0;
shape[0].table[1][2] = 15; /* #### */
shape[0].table[2][2] = 0;
shape[0].table[3][2] = 0;
shape[0].pointv[2] = 5;
shape[0].table[0][3] = 4; /* # */
shape[0].table[1][3] = 4; /* # */
shape[0].table[2][3] = 4; /* # */
shape[0].table[3][3] = 4; /* # */
shape[0].pointv[2] = 8;
shape[0].width = 4;
shape[0].height = 1;
shape[0].offset = 153;
shape[0].color = '#';
/* begin shape 1 definition, four rotations */
shape[1].table[0][0] = 12; /* ## */
shape[1].table[1][0] = 12; /* ## */
shape[1].table[2][0] = 0; /* */
shape[1].table[3][0] = 0; /* */
shape[1].pointv[0] = 6;
shape[1].table[0][1] = 12; /* ## */
shape[1].table[1][1] = 12; /* ## */
shape[1].table[2][1] = 0; /* */
shape[1].table[3][1] = 0; /* */
shape[1].pointv[1] = 6;
shape[1].table[0][2] = 12; /* ## */
shape[1].table[1][2] = 12; /* ## */
shape[1].table[2][2] = 0; /* */
shape[1].table[3][2] = 0; /* */
shape[1].pointv[2] = 6;
shape[1].table[0][3] = 12; /* ## */
shape[1].table[1][3] = 12; /* ## */
shape[1].table[2][3] = 0; /* */
shape[1].table[3][3] = 0; /* */
shape[1].pointv[3] = 6;
shape[1].width = 2;
shape[1].height = 2;
shape[1].offset = 0;
shape[1].color = '$';
/* begin shape 2 definition, four rotations */
shape[2].table[0][0] = 4; /* # */
shape[2].table[1][0] = 14; /* ### */
shape[2].table[2][0] = 0; /* */
shape[2].table[3][0] = 0; /* */
shape[2].pointv[0] = 5;
shape[2].table[0][1] = 4; /* # */
shape[2].table[1][1] = 6; /* ## */
shape[2].table[2][1] = 4; /* # */
shape[2].table[3][1] = 0; /* */
shape[2].pointv[0] = 5;
shape[2].table[0][2] = 0; /* */
shape[2].table[1][2] = 14; /* ### */
shape[2].table[2][2] = 4; /* # */
shape[2].table[3][2] = 0; /* */
shape[2].pointv[2] = 6;
shape[2].table[0][3] = 4; /* # */
shape[2].table[1][3] = 12; /* ## */
shape[2].table[2][3] = 4; /* # */
shape[2].table[3][3] = 0; /* */
shape[2].pointv[3] = 5;
shape[2].width = 3;
shape[2].height = 2;
shape[2].offset = 24;
shape[2].color = '%';
/* begin shape 3 definition, four rotations */
shape[3].table[0][0] = 12; /* ## */
shape[3].table[1][0] = 6; /* ## */
shape[3].table[2][0] = 0; /* */
shape[3].table[3][0] = 0; /* */
shape[3].pointv[0] = 6;
shape[3].table[0][1] = 4; /* # */
shape[3].table[1][1] = 12; /* ## */
shape[3].table[2][1] = 8; /* # */
shape[3].table[3][1] = 0; /* */
shape[3].pointv[1] = 7;
shape[3].table[0][2] = 12; /* ## */
shape[3].table[1][2] = 6; /* ## */
shape[3].table[2][2] = 0; /* */
shape[3].table[3][2] = 0; /* */
shape[3].pointv[2] = 6;
shape[3].table[0][3] = 4; /* # */
shape[3].table[1][3] = 12; /* ## */
shape[3].table[2][3] = 8; /* # */
shape[3].table[3][3] = 0; /* */
shape[3].pointv[3] = 7;
shape[3].width = 3;
shape[3].height = 2;
shape[3].offset = 0;
shape[3].color = '@';
/* begin shape 4 definition, four rotations */
shape[4].table[0][0] = 6; /* ## */
shape[4].table[1][0] = 12; /* ## */
shape[4].table[2][0] = 0; /* */
shape[4].table[3][0] = 0; /* */
shape[4].pointv[0] = 6;
shape[4].table[0][1] = 8; /* # */
shape[4].table[1][1] = 12; /* ## */
shape[4].table[2][1] = 4; /* # */
shape[4].table[3][1] = 0; /* */
shape[4].pointv[1] = 7;
shape[4].table[0][2] = 6; /* ## */
shape[4].table[1][2] = 12; /* ## */
shape[4].table[2][2] = 0; /* */
shape[4].table[3][2] = 0; /* */
shape[4].pointv[2] = 6;
shape[4].table[0][3] = 8; /* # */
shape[4].table[1][3] = 12; /* ## */
shape[4].table[2][3] = 4; /* # */
shape[4].table[3][3] = 0; /* */
shape[4].pointv[3] = 7;
shape[4].width = 3;
shape[4].height = 2;
shape[4].offset = 0;
shape[4].color = '&';
/* begin shape 5 definition, four rotations */
shape[5].table[0][0] = 2; /* # */
shape[5].table[1][0] = 14; /* ### */
shape[5].table[2][0] = 0; /* */
shape[5].table[3][0] = 0; /* */
shape[5].pointv[0] = 6;
shape[5].table[0][1] = 8; /* # */
shape[5].table[1][1] = 8; /* # */
shape[5].table[2][1] = 12; /* ## */
shape[5].table[3][1] = 0; /* */
shape[5].pointv[1] = 7;
shape[5].table[0][2] = 14; /* ### */
shape[5].table[1][2] = 8; /* # */
shape[5].table[2][2] = 0; /* */
shape[5].table[3][2] = 0; /* */
shape[5].pointv[2] = 6;
shape[5].table[0][3] = 12; /* ## */
shape[5].table[1][3] = 4; /* # */
shape[5].table[2][3] = 4; /* # */
shape[5].table[3][3] = 0; /* */
shape[5].pointv[3] = 7;
shape[5].width = 3;
shape[5].height = 2;
shape[5].offset = 0;
shape[5].color = '*';
/* begin shape 6 definition, four rotations */
shape[6].table[0][0] = 14; /* ### */
shape[6].table[1][0] = 2; /* # */
shape[6].table[2][0] = 0; /* */
shape[6].table[3][0] = 0; /* */
shape[6].pointv[0] = 6;
shape[6].table[0][1] = 4; /* # */
shape[6].table[1][1] = 4; /* # */
shape[6].table[2][1] = 12; /* ## */
shape[6].table[3][1] = 0; /* */
shape[6].pointv[1] = 7;
shape[6].table[0][2] = 8; /* # */
shape[6].table[1][2] = 14; /* ### */
shape[6].table[2][2] = 0; /* */
shape[6].table[3][2] = 0; /* */
shape[6].pointv[2] = 6;
shape[6].table[0][3] = 12; /* ## */
shape[6].table[1][3] = 8; /* # */
shape[6].table[2][3] = 8; /* # */
shape[6].table[3][3] = 0; /* */
shape[6].pointv[3] = 7;
shape[6].width = 3;
shape[6].height = 2;
shape[6].offset = 0;
shape[6].color = '+';
}