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constants.s
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constants.s
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.ifndef CONSTANTS_S
CONSTANTS_S:
.equ SCREEN_WIDTH, 640
.equ SCREEN_HEIGH, 480
.equ SCREEN_PIXELS, SCREEN_WIDTH * SCREEN_HEIGH
.equ BITS_PER_PIXEL, 32
.equ BYTES_PER_PIXEL, 4
.equ BYTES_PER_PIXEL_SHIFT, 2
.equ BYTES_PER_SCREEN_ROW, SCREEN_WIDTH * BYTES_PER_PIXEL
.equ BYTES_PER_TETROMINO_BLOCK, 1
.equ BYTES_PER_TETROMINO_BLOCK_SHIFT, 0
.equ TETROMINO_BOARD_WIDTH, 4
.equ TETROMINO_BOARD_HEIGHT, 4
.equ TETROMINO_BOARD_SIZE, TETROMINO_BOARD_WIDTH * TETROMINO_BOARD_WIDTH
.equ TETROMINO_BOARD_SIZE_IN_BYTES, TETROMINO_BOARD_SIZE * BYTES_PER_TETROMINO_BLOCK
.equ NUM_ORIENTATIONS, 4
.equ NUM_TETROMINOS, 7
/* struct Tetromino */
.equ TETROMINO_DIFFUSE_COLOR, 0 // u32
.equ TETROMINO_SPECULAR_COLOR, TETROMINO_DIFFUSE_COLOR + 4 // u32
.equ TETROMINO_AMBIENT_COLOR, TETROMINO_SPECULAR_COLOR + 4 // u32
.equ TETROMINO_ROTS, TETROMINO_AMBIENT_COLOR + 4 // struct TetrominoData[4] = struct TetrominoData[NUM_ORIENTATIONS]
.equ STRUCT_TETROMINO_SIZE, TETROMINO_ROTS + (STRUCT_TDATA_SIZE * NUM_ORIENTATIONS)
/* struct TetrominoData */
.equ TDATA, 0 // u8[4][4] [0][0] is bottom left, [0][3] is bottom right
.equ STRUCT_TDATA_SIZE, TDATA + TETROMINO_BOARD_SIZE_IN_BYTES
.equ FRAME_DIFFUSE_COLOR, 0xFF777777
.equ FRAME_SPECULAR_COLOR, 0xFF999999
.equ FRAME_AMBIENT_COLOR, 0xFF333333
/* Data for all 7 tetrominos */
/* struct Tetromino[NUM_TETROMINOS] */
/* Data is mirrored both horizontally and vertically, due to endianness and array indexing respectively */
TETROMINOS:
/* Tetromino I: */
.word 0x00CCCC // Diffuse color
.word 0x00FFFF // Specular color
.word 0x009999 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0xFFFFFFFF
.word 0x00000000
.word 0x0000FF00
.word 0x0000FF00
.word 0x0000FF00
.word 0x0000FF00
.word 0x00000000
.word 0xFFFFFFFF
.word 0x00000000
.word 0x00000000
.word 0x00FF0000
.word 0x00FF0000
.word 0x00FF0000
.word 0x00FF0000
/* Tetromino J: */
.word 0x0000CC // Diffuse color
.word 0x0000FF // Specular color
.word 0x000099 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0x00FFFFFF
.word 0x000000FF
.word 0x00000000
.word 0x0000FFFF
.word 0x0000FF00
.word 0x0000FF00
.word 0x00000000
.word 0x00FF0000
.word 0x00FFFFFF
.word 0x00000000
.word 0x00000000
.word 0x0000FF00
.word 0x0000FF00
.word 0x00FFFF00
/* Tetromino L: */
.word 0xCC6600 // Diffuse color
.word 0xFF8800 // Specular color
.word 0x994400 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0x00FFFFFF
.word 0x00FF0000
.word 0x00000000
.word 0x0000FF00
.word 0x0000FF00
.word 0x0000FFFF
.word 0x00000000
.word 0x000000FF
.word 0x00FFFFFF
.word 0x00000000
.word 0x00000000
.word 0x00FFFF00
.word 0x0000FF00
.word 0x0000FF00
/* Tetromino O: */
.word 0xCCCC00 // Diffuse color
.word 0xFFFF00 // Specular color
.word 0x999900 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0x00FFFF00
.word 0x00FFFF00
.word 0x00000000
.word 0x00000000
.word 0x00FFFF00
.word 0x00FFFF00
.word 0x00000000
.word 0x00000000
.word 0x00FFFF00
.word 0x00FFFF00
.word 0x00000000
.word 0x00000000
.word 0x00FFFF00
.word 0x00FFFF00
/* Tetromino S: */
.word 0x00CC00 // Diffuse color
.word 0x00FF00 // Specular color
.word 0x009900 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0x0000FFFF
.word 0x00FFFF00
.word 0x00000000
.word 0x0000FF00
.word 0x0000FFFF
.word 0x000000FF
.word 0x00000000
.word 0x0000FFFF
.word 0x00FFFF00
.word 0x00000000
.word 0x00000000
.word 0x00FF0000
.word 0x00FFFF00
.word 0x0000FF00
/* Tetromino Z: */
.word 0xCC0000 // Diffuse color
.word 0xFF0000 // Specular color
.word 0x990000 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0x00FFFF00
.word 0x0000FFFF
.word 0x00000000
.word 0x000000FF
.word 0x0000FFFF
.word 0x0000FF00
.word 0x00000000
.word 0x00FFFF00
.word 0x0000FFFF
.word 0x00000000
.word 0x00000000
.word 0x0000FF00
.word 0x00FFFF00
.word 0x00FF0000
/* Tetromino T: */
.word 0x9900CC // Diffuse color
.word 0xCC00FF // Specular color
.word 0x660099 // Ambient color
.word 0x00000000
.word 0x00000000
.word 0x00FFFFFF
.word 0x0000FF00
.word 0x00000000
.word 0x0000FF00
.word 0x0000FFFF
.word 0x0000FF00
.word 0x00000000
.word 0x0000FF00
.word 0x00FFFFFF
.word 0x00000000
.word 0x00000000
.word 0x0000FF00
.word 0x00FFFF00
.word 0x0000FF00
.endif