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make shape data identifiable by ID and rotation

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This commit is contained in:
Quinn
2025-01-27 16:16:23 +01:00
parent b698a0e3d1
commit 1097c6e09d
3 changed files with 63 additions and 61 deletions
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50
src/game/tetromino/shapes.h
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@@ -1,37 +1,29 @@
#pragma once
#include <stdint.h>
#define SHAPE_WIDTH 4
#define SHAPE_HEIGHT 4
#define TETROMINO_COUNT 7
typedef uint16_t Shape;
enum {
// clang-format off
/* 0 1 2 3 */
TETROMINO_I = 0x8888, // 1000 1000 1000 1000 the I tetromino with no rotation
TETROMINO_I_90 = 0x000F, // 0000 0000 0000 1111 the I tetromino with a no rotation
TETROMINO_O = 0xCC00, // 1100 1100 0000 0000 the O tetromino with no rotation
TETROMINO_T = 0xE400, // 1110 0100 0000 0000 the T tetromino with no rotation
TETROMINO_T_90 = 0xCC80, // 1100 1100 1000 0000 the T tetromino with a no rotation
TETROMINO_T_180 = 0x4E00, // 0100 1110 0000 0000 the T tetromino with a 180° rotation
TETROMINO_T_270 = 0x2620, // 0010 0110 0010 0000 the T tetromino with a 270° rotation
TETROMINO_L = 0x88C0, // 1000 1000 1100 0000 the L tetromino with no rotation
TETROMINO_L_90 = 0xE800, // 1110 1000 0000 0000 the L tetromino with a no rotation
TETROMINO_L_180 = 0xC440, // 1100 0100 0100 0000 the L tetromino with a 180° rotation
TETROMINO_L_270 = 0x02E0, // 0000 0010 1110 0000 the L tetromino with a 270° rotation
TETROMINO_J = 0x44C0, // 0100 0100 1100 0000 the J tetromino with no rotation
TETROMINO_J_90 = 0x8E00, // 1000 1110 0000 0000 the J tetromino with a no rotation
TETROMINO_J_180 = 0xC880, // 1100 1000 1000 0000 the J tetromino with a 180° rotation
TETROMINO_J_270 = 0xC400, // 1110 0010 0000 0000 the J tetromino with a 270° rotation
TETROMINO_S = 0x6C00, // 0110 1100 0000 0000 the S tetromino with no rotation
TETROMINO_S_90 = 0x8C40, // 1000 1100 0100 0000 the S tetromino with a no rotation
TETROMINO_Z = 0xC600, // 1100 0110 0000 0000 the Z tetromino with no rotation
TETROMINO_Z_90 = 0x4C80, // 0100 1100 1000 0000 the Z tetromino with a no rotation
// clang-format on
};
typedef uint8_t ShapeRow;
typedef uint8_t ShapeId;
enum {
TETROMINO_O = 0,
TETROMINO_I = 1,
TETROMINO_S = 2,
TETROMINO_Z = 3,
TETROMINO_T = 4,
TETROMINO_L = 5,
TETROMINO_J = 6,
TETROMINO_ROTATED_90 = 8,
TETROMINO_ROTATED_180 = 16,
TETROMINO_ROTATED_270 = 24,
};
#define SHAPE_WIDTH ((uint8_t)(sizeof(Shape) * 8 / 2))
#define SHAPE_HEIGHT ((uint8_t)(sizeof(Shape) * 8 / 2))
#define TETROMINO_COUNT 7
static inline ShapeRow shape_get_row(Shape shape, uint8_t index) {
return shape >> (((SHAPE_HEIGHT - 1) - index) * 4) & 0xF;
}
@@ -39,3 +31,5 @@ static inline ShapeRow shape_get_row(Shape shape, uint8_t index) {
static inline _Bool is_set(ShapeRow row, uint8_t index) {
return (row >> ((SHAPE_WIDTH - 1) - index) & 1) != 0;
}
Shape shape_from_id(ShapeId id);