added unit tests for calc.h

pull/1/head
Ondřej Hruška 10 years ago
parent 0906626513
commit a18e9d38a1
  1. 5
      devel/cstruct.h
  2. 8
      devel/lib/README.md
  3. 87
      devel/lib/calc.h
  4. 7
      devel/lib/debounce.h
  5. 25
      devel/lib/loops.h
  6. 1
      devel/lib_tests/lib
  7. 8
      devel/lib_tests/run_tests.sh
  8. 356
      devel/lib_tests/test_calc.c
  9. 26
      devel/lib_tests/test_loops_visual.c
  10. 16
      projects/color-memory-game/lib/calc.h
  11. 168
      projects/color-memory-game/main.c

@ -0,0 +1,5 @@
#pragma once
#define loop(varname, count) for(uint8_t varname = 0; varname < (count); varname++)
#define repeat(count) for(uint8_t _repeat_i = 0; _repeat_i < (count); _repeat_i++)
#define until(cond) while(!(cond))

@ -1,6 +1,8 @@
MightyPorsk's AVR utils library
===============================
AVR utils library
=================
This is my ever-evolving library. When I'm done with a project, I copy the current library to the project, so it doesn't break when I do further improvements.
This is my ever-evolving library (not only) for AVR programming.
When I'm done with a project, I copy the current library to the project, so it doesn't break when I do further improvements.
Each library file contains a large comment block explaining it's function.

@ -1,46 +1,89 @@
#pragma once
/**
General purpose calculation and bit manipulation utilities.
Bit and byte manipulation utilities
*/
// if max, go to zero. Else increment.
#define inc_wrap(var, min, max) do { if ((var) >= (max)) { (var)=min; } else { (var)++; } } while(0)
// If zero, go to max. Else decrement,
#define dec_wrap(var, min, max) do { if ((var) > min) { (var)--; } else { (var)=(max); } } while(0)
// --- Increment in range ---
// when overflown, wraps within range. Lower bound < upper bound.
// ..., upper bound excluded
#define inc_wrap(var, min, max) do { if ((var) >= (max - 1)) { (var) = (min); } else { (var)++; } } while(0)
// ..., upper bound included
#define inc_wrapi(var, min, max) inc_wrap((var), (min), (max) + 1)
// === general bit manipulation with register ===
#define sbi(reg, bit) do { (reg) |= (1 << (uint8_t)(bit)); } while(0)
// --- Decrement in range ---
// when underflown, wraps within range. Lower bound < upper bound.
// ..., upper bound excluded
#define dec_wrap(var, min, max) do { if ((var) <= (min)) { (var) = (max) - 1; } else { (var)--; } } while(0)
// ..., upper bound included
#define dec_wrapi(var, min, max) dec_wrap((var), (min), (max) + 1)
// --- Bit manipulation --
// Set bit
#define sbi(reg, bit) do { (reg) |= (1 << (uint8_t)(bit)); } while(0)
// Clear bit
#define cbi(reg, bit) do { (reg) &= ~(1 << (uint8_t)(bit)); } while(0)
#define read_bit(reg, bit) ((((uint8_t)(reg)) >> (uint8_t)(bit)) & 0x1)
#define get_bit(reg, bit) read_bit(reg, bit)
// Get n-th bit
#define read_bit(reg, bit) (((reg) >> (uint8_t)(bit)) & 0x1)
#define get_bit(reg, bit) read_bit(reg, bit)
// Test n-th bit (Can't use bit_is_set, as it's redefined in sfr_def.h)
#define bit_is_high(reg, bit) read_bit(reg, bit)
#define bit_is_low(reg, bit) !read_bit(reg, bit)
// Can't use bit_is_set, as it's redefined in sfr_def.h
#define bit_is_low(reg, bit) (!read_bit(reg, bit))
// Write value to n-th bit
#define write_bit(reg, bit, value) do { (reg) = ((reg) & ~(1 << (uint8_t)(bit))) | (((uint8_t)(value) & 0x1) << (uint8_t)(bit)); } while(0)
#define set_bit(reg, bit, value) write_bit(reg, bit, value)
#define toggle_bit(reg, bit) do { (reg) ^= (1 << (uint8_t)(bit)); } while(0)
#define set_bit(reg, bit, value) write_bit(reg, bit, value)
// Invert n-th bit
#define toggle_bit(reg, bit) do { (reg) ^= (1 << (uint8_t)(bit)); } while(0)
// general pin manipulation - with pointer to register
#define sbi_p(reg_p, bit) do { (*(reg_p)) |= (1 << (uint8_t)(bit)); } while(0)
// --- Bit manipulation with pointer to variable ---
// Set n-th bit in pointee
#define sbi_p(reg_p, bit) do { (*(reg_p)) |= (1 << (uint8_t)(bit)); } while(0)
// Clear n-th bit in pointee
#define cbi_p(reg_p, bit) do { (*(reg_p)) &= ~(1 << (uint8_t)(bit)); } while(0)
// Get n-th bit in pointee
#define read_bit_p(reg_p, bit) ((*(reg_p) >> (uint8_t)(bit)) & 0x1)
#define get_bit_p(reg_p, bit) read_bit_p(reg_p, bit)
#define get_bit_p(reg_p, bit) read_bit_p(reg_p, bit)
// Test n-th bit in pointee (Can't use bit_is_set, as it's redefined in sfr_def.h)
#define bit_is_high_p(reg_p, bit) read_bit_p(reg_p, bit)
#define bit_is_low_p(reg_p, bit) (!read_bit_p(reg_p, bit))
// Write value to a bit in pointee
#define write_bit_p(reg_p, bit, value) do { *(reg_p) = (*(reg_p) & ~(1 << ((uint8_t)(bit) & 0x1))) | (((uint8_t)(value) & 0x1) << (uint8_t)(bit)); } while(0)
#define set_bit_p(reg, bit, value) write_bit_p(reg_p, bit, value)
#define toggle_bit_p(reg_p, bit) do { *(reg_p) ^= (1 << (uint8_t)(bit)); } while(0)
#define set_bit_p(reg_p, bit, value) write_bit_p(reg_p, bit, value)
#define toggle_bit_p(reg_p, bit) do { *(reg_p) ^= (1 << (uint8_t)(bit)); } while(0)
// --- Nibble manipulation ---
// Replace nibble in a byte
#define write_low_nibble(reg, value) do { (reg) = ((reg) & 0xF0) | ((uint8_t)(value) & 0xF); } while(0)
#define write_high_nibble(reg, value) do { (reg) = ((reg) & 0x0F) | (((uint8_t)(value) & 0xF) << 4); } while(0)
#define write_low_nibble_p(reg_p, value) do { *(reg_p) = (*(reg_p) & 0xF0) | ((uint8_t)(value) & 0xF); } while(0)
#define write_high_nibble_p(reg_p, value) do { *(reg_p) = (*(reg_p) & 0x0F) | (((uint8_t)(value) & 0xF) << 4); } while(0)
// --- Range tests ---
// Check if value is in range A..B or B..A
#define in_range(x, low, high) (((low) < (high)) && ((x) > (low) && (x) < (high))) || (((low) > (high)) && ((x) < (low) || (x) > (high)))
// Test if X is within low..high, regardless of bounds order
#define in_range(x, low, high) ((((low) < (high)) && ((x) >= (low) && (x) < (high))) || (((low) > (high)) && ((x) >= (high) && (x) < (low))))
// ..., include greater bound
#define in_rangei(x, low, high) ((((low) <= (high)) && ((x) >= (low) && (x) <= (high))) || (((low) > (high)) && ((x) >= (high) && (x) <= (low))))
// Check if value is in range A..B. If B < A, matches all outside B..A
#define in_range_wrap(x, low, high) (((low) < (high)) && ((x) > (low) && (x) < (high))) || (((low) > (high)) && ((x) > (low) || (x) < (high)))
// Test if X in low..high, wrap around ends if needed.
#define in_range_wrap(x, low, high) ((((low) < (high)) && ((x) >= (low) && (x) < (high))) || (((low) > (high)) && ((x) >= (low) || (x) < (high))))
// ..., include upper bound
#define in_range_wrapi(x, low, high) ((((low) <= (high)) && ((x) >= (low) && (x) <= (high))) || (((low) > (high)) && ((x) >= (low) || (x) <= (high))))

@ -49,9 +49,9 @@
/* Internal deboucer entry */
typedef struct {
PORT_P reg;
uint8_t bit;
uint8_t count;
PORT_P reg; // pointer to IO register
uint8_t bit; // bits 6 and 7 of this hold "state" & "invert" flag
uint8_t count; // number of ticks this was in the new state
} debo_slot_t;
/** Debounce data array */
@ -101,4 +101,3 @@ void debo_tick()
/** Get a value of debounced pin */
#define debo_get_pin(i) (get_bit(debo_slots[i].bit, 6) ^ get_bit(debo_slots[i].bit, 7))
//(get_bit(debo_slots[i].bit, 6) ^ get_bit(debo_slots[i].bit, 7))

@ -0,0 +1,25 @@
#pragma once
/**
Custom loops
*/
// Repeat code n times (uint8_t counter)
#define repeat(count) repeat_aux(count, _repeat_##__COUNTER__)
#define repeat_aux(count, cntvar) for (uint8_t cntvar = 0; cntvar < (count); cntvar++)
// Repeat code n times (uint16_t counter)
#define repeatx(count) repeatx_aux(count, _repeatx_##__COUNTER__)
#define repeatx_aux(count, cntvar) for (uint16_t cntvar = 0; cntvar < (count); cntvar++)
// Repeat with custom counter name (uint8_t)
#define loop(var, count) repeat_aux(count, var)
// ..., uint16_t
#define loopx(var, count) repeatx_aux(count, var)
// Do until condition is met
#define until(what) while(!(what))
// Because why the hell not
#define whilst(what) while((what))

@ -0,0 +1 @@
/home/ondra/devel/avr/avr-projects/devel/lib

@ -0,0 +1,8 @@
#!/bin/bash
dir=/tmp/avrclib_unittest
[ -d "$dir" ] || mkdir "$dir"
gcc test_calc.c -o "$dir/test_calc" && "$dir/test_calc"

@ -0,0 +1,356 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <assert.h>
#include "lib/calc.h"
void main()
{
printf("== calc.h ==\n");
int i;
int a;
printf("fn: inc_wrap()\n");
{
// normal operation
a = 1;
inc_wrap(a, 0, 15);
assert(a == 2);
// overflow
a = 14;
inc_wrap(a, 0, 15);
assert(a == 0);
}
printf("fn: inc_wrapi()\n");
{
// normal operation
a = 1;
inc_wrapi(a, 0, 15);
assert(a == 2);
// not overflow yet
a = 14;
inc_wrapi(a, 0, 15);
assert(a == 15);
// overflow
a = 15;
inc_wrap(a, 0, 15);
assert(a == 0);
}
printf("fn: dec_wrap()\n");
{
// normal operation
a = 5;
dec_wrap(a, 0, 15);
assert(a == 4);
// underflow
a = 0;
dec_wrap(a, 0, 15);
assert(a == 14);
}
printf("fn: dec_wrapi()\n");
{
// normal operation
a = 5;
dec_wrapi(a, 0, 15);
assert(a == 4);
// underflow
a = 0;
dec_wrapi(a, 0, 15);
assert(a == 15);
}
printf("fn: sbi()\n");
{
a = 0;
sbi(a, 2);
assert(a == 0b100);
}
printf("fn: cbi()\n");
{
a = 0b11111;
cbi(a, 2);
assert(a == 0b11011);
}
printf("fn: read_bit()\n");
{
a = 0b101;
assert(read_bit(a, 0) == 1);
assert(read_bit(a, 1) == 0);
assert(read_bit(a, 2) == 1);
}
printf("fn: bit_is_high()\n");
{
a = 0b101;
assert(bit_is_high(a, 0) == 1);
assert(bit_is_high(a, 1) == 0);
assert(bit_is_high(a, 2) == 1);
}
printf("fn: bit_is_low()\n");
{
a = 0b101;
assert(bit_is_low(a, 0) == 0);
assert(bit_is_low(a, 1) == 1);
assert(bit_is_low(a, 2) == 0);
}
printf("fn: toggle_bit()\n");
{
a = 0;
toggle_bit(a, 2);
assert(a == 0b00100);
toggle_bit(a, 4);
assert(a == 0b10100);
toggle_bit(a, 4);
assert(a == 0b00100);
}
// pointer variants
int* b = &a;
printf("fn: sbi_p()\n");
{
*b = 0;
sbi_p(b, 2);
assert(*b == 0b100);
}
printf("fn: cbi_p()\n");
{
*b = 0b11111;
cbi_p(b, 2);
assert(*b == 0b11011);
}
printf("fn: read_bit_p()\n");
{
*b = 0b101;
assert(read_bit_p(b, 0) == 1);
assert(read_bit_p(b, 1) == 0);
assert(read_bit_p(b, 2) == 1);
}
printf("fn: bit_is_high_p()\n");
{
*b = 0b101;
assert(bit_is_high_p(b, 0) == 1);
assert(bit_is_high_p(b, 1) == 0);
assert(bit_is_high_p(b, 2) == 1);
}
printf("fn: bit_is_low_p()\n");
{
*b = 0b101;
assert(bit_is_low_p(b, 0) == 0);
assert(bit_is_low_p(b, 1) == 1);
assert(bit_is_low_p(b, 2) == 0);
}
printf("fn: toggle_bit_p()\n");
{
*b = 0;
toggle_bit_p(b, 2);
assert(*b == 0b00100);
toggle_bit_p(b, 4);
assert(*b == 0b10100);
toggle_bit_p(b, 4);
assert(*b == 0b00100);
}
// -- nibbles --
printf("fn: write_low_nibble()\n");
{
a = 0xAC;
write_low_nibble(a, 0x5); // shifted 4 left
assert(a == 0xA5);
a = 0xAB;
write_low_nibble(a, 0x65); // shifted 4 left, extra ignored
assert(a == 0xA5);
}
printf("fn: write_high_nibble()\n");
{
a = 0xAC;
write_high_nibble(a, 0x5); // shifted 4 left
assert(a == 0x5C);
a = 0xAB;
write_high_nibble(a, 0x65); // shifted 4 left, extra ignored
assert(a == 0x5B);
}
printf("fn: write_low_nibble_p()\n");
{
*b = 0xAC;
write_low_nibble_p(b, 0x5); // shifted 4 left
assert(*b == 0xA5);
*b = 0xAB;
write_low_nibble_p(b, 0x65); // shifted 4 left, extra ignored
assert(*b == 0xA5);
}
printf("fn: write_high_nibble_p()\n");
{
*b = 0xAC;
write_high_nibble_p(b, 0x5); // shifted 4 left
assert(*b == 0x5C);
*b = 0xAB;
write_high_nibble_p(b, 0x65); // shifted 4 left, extra ignored
assert(*b == 0x5B);
}
printf("fn: in_range()\n");
{
// regular
assert(in_range(10, 10, 15));
assert(in_range(14, 10, 15));
assert(in_range(13, 10, 15));
// under
assert(!in_range(9, 10, 15));
assert(!in_range(0, 10, 15));
// above
assert(!in_range(15, 10, 15));
assert(!in_range(99, 10, 15));
// swapped bounds
// regular
assert(in_range(10, 15, 10));
assert(in_range(14, 15, 10));
assert(in_range(13, 15, 10));
// under
assert(!in_range(9, 15, 10));
assert(!in_range(0, 15, 10));
// above
assert(!in_range(15, 15, 10));
assert(!in_range(99, 15, 10));
}
printf("fn: in_rangei()\n");
{
// regular
assert(in_rangei(10, 10, 15));
assert(in_rangei(15, 10, 15));
assert(in_rangei(13, 10, 15));
// under
assert(!in_rangei(9, 10, 15));
assert(!in_rangei(0, 10, 15));
// above
assert(!in_rangei(16, 10, 15));
assert(!in_rangei(99, 10, 15));
// -- swapped bounds --
// regular
assert(in_rangei(10, 15, 10));
assert(in_rangei(15, 15, 10));
assert(in_rangei(13, 15, 10));
// under
assert(!in_rangei(9, 15, 10));
assert(!in_rangei(0, 15, 10));
// above
assert(!in_rangei(16, 15, 10));
assert(!in_rangei(99, 15, 10));
}
printf("fn: in_range_wrap()\n");
{
// as regular range
// regular
assert(in_range_wrap(10, 10, 15));
assert(in_range_wrap(14, 10, 15));
assert(in_range_wrap(13, 10, 15));
// under
assert(!in_range_wrap(9, 10, 15));
assert(!in_range_wrap(0, 10, 15));
// above
assert(!in_range_wrap(15, 10, 15));
assert(!in_range_wrap(16, 10, 15));
assert(!in_range_wrap(99, 10, 15));
// with wrap (>= 15, < 10)
// regular
assert(!in_range_wrap(10, 15, 10));
assert(!in_range_wrap(14, 15, 10));
assert(!in_range_wrap(13, 15, 10));
// under
assert(in_range_wrap(9, 15, 10));
assert(in_range_wrap(0, 15, 10));
// above
assert(in_range_wrap(16, 15, 10));
assert(in_range_wrap(99, 15, 10));
}
printf("fn: in_range_wrapi()\n");
{
// as regular range
// regular
assert(in_range_wrapi(10, 10, 15));
assert(in_range_wrapi(15, 10, 15));
assert(in_range_wrapi(13, 10, 15));
// under
assert(!in_range_wrapi(9, 10, 15));
assert(!in_range_wrapi(0, 10, 15));
// above
assert(!in_range_wrapi(16, 10, 15));
assert(!in_range_wrapi(99, 10, 15));
// with wrap (>= 15, < 10)
// regular
assert(in_range_wrapi(10, 15, 10));
assert(!in_range_wrapi(14, 15, 10));
assert(!in_range_wrapi(13, 15, 10));
// under
assert(in_range_wrapi(10, 15, 10));
assert(in_range_wrapi(0, 15, 10));
// above
assert(in_range_wrapi(16, 15, 10));
assert(in_range_wrapi(99, 15, 10));
}
printf("== PASSED ==\n");
}

@ -0,0 +1,26 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <assert.h>
#include "lib/loops.h"
void main()
{
repeat(5) printf("Five times!\n");
repeatx(500) printf(".");
printf("\n");
int i = 0;
until (i == 100) i++;
whilst (i > 0) {
i--;
printf("i = %d\n", i);
}
printf("\n");
loop(moo, 7) {
printf("moo = %d\n", moo);
}
}

@ -4,11 +4,13 @@
General purpose calculation and bit manipulation utilities.
*/
// if max, go to zero. Else increment.
#define inc_wrap(var, min, max) do { if ((var) >= (max)) { (var)=min; } else { (var)++; } } while(0)
// if max, go to zero. Else increment. wrape = wrap exclusive
#define inc_wrap(var, min, max) do { if ((var) >= (max - 1)) { (var) = (min); } else { (var)++; } } while(0)
#define inc_wrapi(var, min, max) inc_wrap((var), (min), (max) + 1)
// If zero, go to max. Else decrement,
#define dec_wrap(var, min, max) do { if ((var) > min) { (var)--; } else { (var)=(max); } } while(0)
// If zero, go to max. Else decrement. wrape = wrap exclusive
#define dec_wrap(var, min, max) do { if ((var) > (min)) { (var)--; } else { (var) = (max) - 1; } } while(0)
#define dec_wrapi(var, min, max) dec_wrap((var), (min), (max) + 1)
// === general bit manipulation with register ===
#define sbi(reg, bit) do { (reg) |= (1 << (uint8_t)(bit)); } while(0)
@ -40,7 +42,9 @@
// Check if value is in range A..B or B..A
#define in_range(x, low, high) (((low) < (high)) && ((x) > (low) && (x) < (high))) || (((low) > (high)) && ((x) < (low) || (x) > (high)))
#define in_range(x, low, high) ((((low) < (high)) && ((x) >= (low) && (x) < (high))) || (((low) > (high)) && ((x) < (low) && (x) >= (high))))
#define in_rangei(x, low, high) ((((low) <= (high)) && ((x) >= (low) && (x) <= (high))) || (((low) > (high)) && ((x) <= (low) && (x) >= (high))))
// Check if value is in range A..B. If B < A, matches all outside B..A
#define in_range_wrap(x, low, high) (((low) < (high)) && ((x) > (low) && (x) < (high))) || (((low) > (high)) && ((x) > (low) || (x) < (high)))
#define in_range_wrap(x, low, high) ((((low) < (high)) && ((x) >= (low) && (x) < (high))) || (((low) > (high)) && ((x) >= (low) || (x) < (high))))
#define in_range_wrapi(x, low, high) ((((low) <= (high)) && ((x) >= (low) && (x) <= (high))) || (((low) > (high)) && ((x) >= (low) || (x) <= (high))))

@ -17,48 +17,17 @@
#include "lib/debounce.h"
// #define BOARD_WIDTH 6
// #define BOARD_HEIGHT 5
#define BOARD_WIDTH 6
#define BOARD_HEIGHT 5
#define WIDTH 6
#define HEIGHT 5
// number of cards
#define CARD_COUNT (BOARD_WIDTH * BOARD_HEIGHT)
// number of pairs
#define PAIR_COUNT (CARD_COUNT / 2)
#define CARD_COUNT (WIDTH * HEIGHT)
// when the "small" pin is DOWN, only this many cards are dealt - on the same board size
#define CARD_COUNT_SMALL 12
#define CARD_COUNT_SMALL WIDTH * 2
// color palette
const xrgb_t COLORS[] = {
rgb24_xrgbc(0x00FF99), // emerald
rgb24_xrgbc(0x0000CC), // full blue
rgb24_xrgbc(0xFF00FF), // magenta
rgb24_xrgbc(0xFF0000), // red
rgb24_xrgbc(0xFF2B00), // orange
rgb24_xrgbc(0xFFFF00), // yellow
rgb24_xrgbc(0x0BEE00), // green
rgb24_xrgbc(0xFF6D00), // tangerine yellow/orange
rgb24_xrgbc(0x00CCCC), // cyan
rgb24_xrgbc(0x4400FF), // blue-purple
rgb24_xrgbc(0x5FBA00), // yellow-green
rgb24_xrgbc(0xD70053), // wine
rgb24_xrgbc(0xCD2B64), // brick
rgb24_xrgbc(0xED1B24), // firetruck red
rgb24_xrgbc(0xFF6D55), // salmon?
};
// assert valid board size
#if CARD_COUNT % 2 == 1
# error "Board size is not even!"
#endif
// Pin assignments (see pins.h)
// --- Pin assignments (see pins.h) ---
// RGB LED strip data line
#define WS1 D10
@ -71,7 +40,7 @@ const xrgb_t COLORS[] = {
#define BTN_SELECT D6
#define BTN_RESTART D7
// connect this pin to ground to get smaller board size (for kids ^^)
// Connect to GROUND to get small board size (for kids ^_^)
#define FLAG_SMALL D12
// Debouncer channels for buttons
@ -88,10 +57,44 @@ const xrgb_t COLORS[] = {
// entropy for the random number generator
// number of pairs
#define PAIR_COUNT (CARD_COUNT / 2)
// assert valid board size
#if CARD_COUNT % 2 == 1
# error "CARD_COUNT is not even!"
#endif
#if CARD_COUNT_SMALL % 2 == 1
# error "CARD_COUNT_SMALL is not even!"
#endif
// color palette
const xrgb_t COLORS[] = {
rgb24_xrgbc(0x0000CC), // full blue
rgb24_xrgbc(0x0BEE00), // green
rgb24_xrgbc(0xFFFF00), // yellow
rgb24_xrgbc(0xFF0000), // red
rgb24_xrgbc(0x00CCFF), // cyan
rgb24_xrgbc(0xFF3300), // orange
rgb24_xrgbc(0xFF00FF), // magenta
rgb24_xrgbc(0x00FF88), // emerald
rgb24_xrgbc(0x5FBA00), // yellow-green
rgb24_xrgbc(0xFF7700), // tangerine yellow/orange
rgb24_xrgbc(0x4400FF), // blue-purple
rgb24_xrgbc(0xD70053), // wine
rgb24_xrgbc(0xED1B24), // firetruck red
rgb24_xrgbc(0xFF6D55), // salmon?
rgb24_xrgbc(0xFF4C4C), // skin pink
};
// Prototypes
void render();
void update();
void deal_cards();
void safe_press_arrow_key(uint8_t n);
/** Program initialization */
@ -194,7 +197,10 @@ ISR(TIMER0_COMPA_vect)
// player cursor position
uint8_t cursor = 0;
uint8_t pos_x = 0;
uint8_t pos_y = 0;
#define Cursor (pos_y * WIDTH + pos_x)
uint8_t animframe = 0;
bool hide_timeout_match;
@ -220,46 +226,36 @@ void button_click(uint8_t n)
{
switch (n) {
case D_UP:
if (cursor < BOARD_WIDTH) // first row
cursor += (CARD_COUNT - BOARD_WIDTH);
else
cursor -= BOARD_WIDTH;
dec_wrap(pos_y, 0, HEIGHT);
break;
case D_DOWN:
if (cursor >= (CARD_COUNT - BOARD_WIDTH)) // last row
cursor -= (CARD_COUNT - BOARD_WIDTH);
else
cursor += BOARD_WIDTH;
inc_wrap(pos_y, 0, HEIGHT);
break;
case D_LEFT:
if (cursor > 0) // last row
cursor--;
else
cursor = (CARD_COUNT - 1);
if (pos_x == 0) dec_wrap(pos_y, 0, HEIGHT); // go to previous row
dec_wrap(pos_x, 0, WIDTH);
break;
case D_RIGHT:
if (cursor < (CARD_COUNT - 1)) // last row
cursor++;
else
cursor = 0;
if (pos_x == WIDTH - 1) inc_wrap(pos_y, 0, HEIGHT); // go to next row
inc_wrap(pos_x, 0, WIDTH);
break;
case D_SELECT:
if (tiles_revealed == 2) break; // two already shown
if (board[cursor].state != SECRET) break; // selected tile not secret
if (board[Cursor].state != SECRET) break; // selected tile not secret
// reveal a tile
if (tiles_revealed < 2) {
board[cursor].state = REVEALED;
board[Cursor].state = REVEALED;
tiles_revealed++;
if(tiles_revealed == 1) {
tile1 = cursor;
tile1 = Cursor;
} else {
tile2 = cursor;
tile2 = Cursor;
}
}
@ -273,6 +269,9 @@ void button_click(uint8_t n)
case D_RESTART:
deal_cards();
if (board[Cursor].state == GONE)
safe_press_arrow_key(D_RIGHT);
break;
}
}
@ -281,20 +280,49 @@ void button_click(uint8_t n)
/** Press arrow key, skip empty tiles */
void safe_press_arrow_key(uint8_t n)
{
// attempt to arrive at some secret tile
for (uint8_t j = 0; j < BOARD_HEIGHT; j++) {
// preserve old position
const uint8_t x1 = pos_x;
const uint8_t y1 = pos_y;
if (n == D_LEFT || n == D_RIGHT) {
for (uint8_t k = 0; k < BOARD_WIDTH; k++) {
// traverse all buttons
for (uint8_t i = 0; i < CARD_COUNT; i++) {
button_click(n);
if (board[cursor].state != GONE) break;
if (board[Cursor].state != GONE) return;
}
if (board[cursor].state != GONE) break;
} else {
for (uint8_t i = 0; i < HEIGHT; i++) {
// Go up/down
button_click(n);
if (board[Cursor].state != GONE) return;
// traverse right since current column is empty
//
button_click(D_RIGHT);
for (int8_t x = 0; x < WIDTH; x++) {
if ((int8_t) pos_x - x >= 0) {
if (board[Cursor - x].state != GONE) {
pos_x -= x;
return;
}
}
if ((int8_t) pos_x + x < WIDTH) {
if (board[Cursor + x].state != GONE) {
pos_x += x;
return;
}
}
}
}
}
// restore original position
pos_x = x1;
pos_y = y1;
}
@ -331,10 +359,10 @@ void update()
board[tile1].state = GONE;
board[tile2].state = GONE;
if (board[cursor].state == GONE) {
if (board[Cursor].state == GONE) {
// move to some other tile
// try not to change row if possible
if ((cursor % BOARD_WIDTH) == (BOARD_WIDTH - 1))
if ((Cursor % WIDTH) == (WIDTH - 1))
safe_press_arrow_key(D_LEFT);
else
safe_press_arrow_key(D_RIGHT);
@ -350,7 +378,7 @@ void update()
}
// Animation for pulsing the active color
inc_wrap(animframe, 0, F_ANIM_LEN * 2);
inc_wrapi(animframe, 0, F_ANIM_LEN * 2);
}
// LED off
@ -384,7 +412,7 @@ void render()
}
// pulse active tile
if (i == cursor) {
if (i == Cursor) {
uint16_t mult;
if (animframe < F_ANIM_LEN) {

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