68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
#ifndef _LCR_GENERAL_H
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#define _LCR_GENERAL_H
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/**
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General resources for all modules.
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*/
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#include <stdint.h>
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#include "settings.h"
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// TODO: maybe move module specific constants to the modules themselves?
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// constants (not supposed to be changed, doing so may break stuff):
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#define LCR_EFFECTIVE_RESOLUTION_X \
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(LCR_SETTING_RESOLUTION_X / LCR_SETTING_RESOLUTION_SUBDIVIDE)
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#define LCR_EFFECTIVE_RESOLUTION_Y \
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(LCR_SETTING_RESOLUTION_Y / LCR_SETTING_RESOLUTION_SUBDIVIDE)
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#define LCR_MAP_SIZE_BLOCKS 64
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/** Physics FPS, i.e. the number of physics ticks per second. */
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#define LCR_RACING_FPS 30
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#define LCR_RACING_TICK_MS \
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(100000 / (LCR_RACING_FPS * LCR_SETTING_TIME_MULTIPLIER))
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char _LCR_hexDigit(int i)
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{
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return i < 10 ? '0' + i : ('a' - 10 + i);
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}
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int _LCR_hexDigitVal(char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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if (c >= 'a' && c <= 'f')
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return c - 'a' + 10;
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return -1;
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}
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/**
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Computes simple hash of a string represented by a function returning next
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string character, ending at 0 or endChar. This is intended for simple (but
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not 100% reliable) string comparison.
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*/
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uint16_t _LCR_simpleStrHash(char (*nextChar)(void), char endChar)
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{
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uint16_t r = 0;
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while (1)
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{
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char c = nextChar();
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if (c == 0 || c == endChar)
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break;
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r = ((r << 5) | (r >> 11)) + c;
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}
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return r;
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}
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#endif // guard
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