121 lines
2.3 KiB
C
121 lines
2.3 KiB
C
/**
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* \addtogroup tetris
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* @{
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*/
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/**
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* @file highscore.c
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* @brief Implementation of the high score table input module.
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* @author Michael Holzt, Christian Kroll
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <limits.h>
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#include "../../config.h"
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#include "../../scrolltext/scrolltext.h"
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#include "../../joystick/joystick.h"
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#include "../../compat/eeprom.h"
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#include "highscore.h"
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/** The global high score table (located in the EEPROM), */
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tetris_highscore_table_t g_highScoreTable EEMEM;
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uint16_t tetris_highscore_inputName(void)
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{
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#ifdef SCROLLTEXT_SUPPORT
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char pszNick[4] = {'A', 'A', 'A', '\0'};
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char pszTmp[26];
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uint8_t nPos = 0, nBlink = 0, nHadfire = 0;
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while (1)
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{
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// we need our own blink interval
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nBlink = (nBlink + 1u) % 4u;
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// construct command for scrolltext and execute
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static uint8_t const nOffset[3] = {15, 19, 23};
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snprintf(pszTmp, sizeof(pszTmp), "x%u+p1#%c#x%u+p1#%c#x%up1#%c",
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nOffset[nPos] , (!nBlink && nPos == 0) ? ' ' : pszNick[0],
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nOffset[nPos] - 8, (!nBlink && nPos == 1) ? ' ' : pszNick[1],
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nOffset[nPos] - 15, (!nBlink && nPos == 2) ? ' ' : pszNick[2]);
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scrolltext(pszTmp);
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// up and down control current char
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if (JOYISUP)
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{
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pszNick[nPos]++;
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if (pszNick[nPos] == '`')
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{
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pszNick[nPos] = 'A';
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}
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else if (pszNick[nPos] == '[')
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{
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pszNick[nPos] = '_';
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}
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}
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else if (JOYISDOWN)
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{
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pszNick[nPos]--;
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if (pszNick[nPos] == '@')
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{
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pszNick[nPos] = '_';
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}
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else if (pszNick[nPos] == '^')
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{
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pszNick[nPos] = 'Z';
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}
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}
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// left and right control char selections
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if (JOYISLEFT && nPos > 0)
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{
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nPos--;
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}
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else if (JOYISRIGHT && nPos < 2)
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{
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nPos++;
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}
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// fire switches to next char or exits
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if (JOYISFIRE && !nHadfire)
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{
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nHadfire = 1;
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if (nPos++ == 2)
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{
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break;
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}
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}
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if (!JOYISFIRE)
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{
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nHadfire = 0;
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}
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}
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// return result
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return (uint16_t)(pszNick[0] - 65) << 10 |
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(uint16_t)(pszNick[1] - 65) << 5 |
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(uint16_t)(pszNick[2] - 65);
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#else
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return (0);
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#endif
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}
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uint16_t tetris_highscore_retrieveHighScore(tetris_highscore_index_t nIndex)
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{
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eeprom_busy_wait();
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uint16_t nHighScore =
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eeprom_read_word(&g_highScoreTable.nHighScore[nIndex]);
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// a score of 65535 is most likely caused by uninitialized EEPROM addresses
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return nHighScore == UINT16_MAX ? 0 : nHighScore;
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}
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/*@}*/
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