mirror of
https://github.com/thepigeongenerator/tetris_clone.git
synced 2025-12-17 05:55:46 +01:00
69 lines
3.7 KiB
C
69 lines
3.7 KiB
C
#include "shapes.h"
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#include "../../window/colour/colour8.h"
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#include "../opts.h"
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/* 0 1 2 3 */
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#define SHAPE_O ((shape)0x0660) // 0000 0110 0110 0000 the O tetromino with no rotation
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#define SHAPE_I ((shape)0x0F00) // 0000 1111 0000 0000 the I tetromino with no rotation
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#define SHAPE_I_90 ((shape)0x2222) // 0010 0010 0010 0010 the I tetromino with a 90° rotation
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#define SHAPE_I_180 ((shape)0x00F0) // 0000 0000 1111 0000 the I tetromino with a 180° rotation
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#define SHAPE_I_270 ((shape)0x4444) // 0100 0100 0100 0100 the I tetromino with a 270° rotation
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#define SHAPE_S ((shape)0xC600) // 1100 0110 0000 0000 the Z tetromino with no rotation
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#define SHAPE_S_90 ((shape)0x2640) // 0010 0110 0100 0000 the Z tetromino with a 90° rotation
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#define SHAPE_S_180 ((shape)0x0C60) // 0000 1100 0110 0000 the Z tetromino with a 180° rotation
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#define SHAPE_S_270 ((shape)0x4C80) // 0100 1100 1000 0000 the Z tetromino with a 270° rotation
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#define SHAPE_Z ((shape)0x6C00) // 0110 1100 0000 0000 the S tetromino with no rotation
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#define SHAPE_Z_90 ((shape)0x4620) // 0100 0110 0010 0000 the S tetromino with a 90° rotation
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#define SHAPE_Z_180 ((shape)0x06C0) // 0000 0110 1100 0000 the S tetromino with a 180° rotation
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#define SHAPE_Z_270 ((shape)0x8C40) // 1000 1100 0100 0000 the S tetromino with a 270° rotation
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#define SHAPE_T ((shape)0x0E40) // 0000 1110 0100 0000 the T tetromino with no rotation
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#define SHAPE_T_90 ((shape)0x4C40) // 0100 1100 0100 0000 the T tetromino with a 90° rotation
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#define SHAPE_T_180 ((shape)0x4E00) // 0100 1110 0000 0000 the T tetromino with a 180° rotation
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#define SHAPE_T_270 ((shape)0x4640) // 0100 0110 0100 0000 the T tetromino with a 270° rotation
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#define SHAPE_L ((shape)0x4460) // 0100 0100 0110 0000 the L tetromino with no rotation
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#define SHAPE_L_90 ((shape)0x0E80) // 0000 1110 1000 0000 the L tetromino with a 90° rotation
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#define SHAPE_L_180 ((shape)0xC440) // 1100 0100 0100 0000 the L tetromino with a 180° rotation
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#define SHAPE_L_270 ((shape)0x2E00) // 0010 1110 0000 0000 the L tetromino with a 270° rotation
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#define SHAPE_J ((shape)0x44C0) // 0100 0100 1100 0000 the J tetromino with no rotation
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#define SHAPE_J_90 ((shape)0x8E00) // 1000 1110 0000 0000 the J tetromino with a 90° rotation
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#define SHAPE_J_180 ((shape)0x6440) // 0110 0100 0100 0000 the J tetromino with a 180° rotation
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#define SHAPE_J_270 ((shape)0x0E20) // 0000 1110 0010 0000 the J tetromino with a 270° rotation
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shape shape_from_id(shape_id const id) {
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// clang-format off
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static shape const shapes[TETROMINO_COUNT][4] = {
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// 0° 90° 180° 170°
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{SHAPE_O, SHAPE_O, SHAPE_O, SHAPE_O},
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{SHAPE_I, SHAPE_I_90, SHAPE_I_180, SHAPE_I_270},
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{SHAPE_S, SHAPE_S_90, SHAPE_S_180, SHAPE_S_270},
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{SHAPE_Z, SHAPE_Z_90, SHAPE_Z_180, SHAPE_Z_270},
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{SHAPE_T, SHAPE_T_90, SHAPE_T_180, SHAPE_T_270},
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{SHAPE_L, SHAPE_L_90, SHAPE_L_180, SHAPE_L_270},
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{SHAPE_J, SHAPE_J_90, SHAPE_J_180, SHAPE_J_270},
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};
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// clang-format on
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// first 3 bits is the shape type, the rest is rotation data
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return shapes[id & 7][id >> 3];
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}
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colour8 colour_from_id(shape_id const id) {
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switch (id & 7) {
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case TETROMINO_O: return opts.colour_O;
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case TETROMINO_I: return opts.colour_I;
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case TETROMINO_S: return opts.colour_S;
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case TETROMINO_Z: return opts.colour_Z;
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case TETROMINO_T: return opts.colour_T;
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case TETROMINO_L: return opts.colour_L;
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case TETROMINO_J: return opts.colour_J;
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default: return COLOUR8_BLACK;
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}
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}
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