45 lines
877 B
C
45 lines
877 B
C
#include "rebound.h"
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#include <stdio.h>
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static uint8_t rbpos;
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uint8_t rebound_getpos ()
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{
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return (rbpos + (REBOUND_SIZE / 2));
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}
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void rebound_init()
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{
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rbpos = (NUM_ROWS / 2) - (REBOUND_SIZE / 2);
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rebound_draw();
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}
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void rebound_draw ()
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{
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uint8_t i;
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for (i=rbpos;i<rbpos + REBOUND_SIZE;i++)
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{
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playfield_set (i, NUM_ROWS-1, rb); /* set rebound pixel */
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}
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}
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void rebound_tick()
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{
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/* directions are inverted (JOYISLEFT means RIGHT) */
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if (JOYISRIGHT && rbpos)
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{
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playfield_set (rbpos + REBOUND_SIZE, NUM_ROWS-1, sp); /* clear rebound pixel */
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rbpos--;
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playfield_set (rbpos, NUM_ROWS-1, rb); /* set rebound pixel */
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}
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if (JOYISLEFT && rbpos < (NUM_COLS - (REBOUND_SIZE+1)))
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{
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playfield_set (rbpos, NUM_ROWS-1, sp); /* clear rebound pixel */
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rbpos++;
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playfield_set (rbpos + REBOUND_SIZE, NUM_ROWS-1, rb); /* set rebound pixel */
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}
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rebound_draw();
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}
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