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Code Issues 8 Releases Activity

Tried using a fixed meandering path for the snake effect. Doesn't work as of now.

This commit is contained in:
Fabian Schlenz 2020-04-30 06:20:19 +02:00
parent 70ddba2cbc
commit 599bcd87bc
2 changed files with 66 additions and 2 deletions
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7
include/effect_snake.h
View File

@ -14,6 +14,7 @@ class SnakeEffect : public Effect {
private:
Coords _pos;
Coords _apple;
Coords _tail;
int8_t _dir = SNAKE_DIR_NORTH;
uint8_t* _map;
uint16_t _pixels;
@ -32,11 +33,16 @@ private:
const uint32_t _weights[36] = {0xbd25943f, 0xbf279d81, 0x3e25d128, 0x3ec62438, 0x3f0e719c, 0x3eefbea9, 0x3e947ed4, 0xbe5323c1, 0xbf2d4796, 0xbf3f0a75, 0x3f0e45d9, 0xbf0253ca, 0xbedca2f2, 0xbd79073c, 0x3ede80ec, 0xbd4b97b6, 0x3f69a6be, 0xbe4b8bf2, 0x3eccf87d, 0xbf301113, 0xbf62b6e8, 0xbf71daf6, 0xbf204130, 0xbf222609, 0x3e26c03c, 0xbf497837, 0xbee4d175, 0x3ec601de, 0x3e4954eb, 0x3eef2619, 0xbe849370, 0xbf18fb2b, 0x3f25bbd1, 0xbf3b4e44, 0x3f484d59, 0x3edd6a8a};
// Round 193, 164.8 points, length 36, 6% stopped, 94% died
//const uint32_t _weights[36] = {0x3e872ffb, 0xbea57262, 0xbee269bf, 0x3ed790a3, 0xbf54014f, 0x3ecde0a6, 0xbf240a93, 0xbe9e4782, 0x3f205106, 0xbf4465c2, 0xbf79579a, 0xbf07f122, 0x3ed0e1bc, 0xbf7a5a09, 0xbf0fc70b, 0xbf6d1971, 0xbe0f5585, 0xbec94b12, 0x3f51f7a9, 0x3eaac42b, 0xbe6aafa6, 0x3d3e3ce3, 0xbf7c4232, 0xbe634103, 0x3f800000, 0x3eff886c, 0x3deae1e8, 0x3eea6988, 0xbf800000, 0xbf426a20, 0x3e3a0a45, 0xbe848803, 0x3e84e8c9, 0x3ef9fabc, 0xbe7733e6, 0xbecda633};
// Round 13650, 244.8 points, length 42, 34% stopped, 66% died
//const uint32_t _weights[36] = {0xbeb99de3, 0x3e6ca488, 0xbe3e9dad, 0xbed38d4e, 0x3f279fc1, 0xbd367111, 0xbf473843, 0xbf800000, 0x3f614edc, 0xbecc734f, 0xbe59b29d, 0x3d479078, 0x3efa7ca6, 0xbedc6ce6, 0x3f4626a1, 0x3e9d8c2c, 0x3f29e25c, 0x3ebde05d, 0x3e8f3e29, 0xbe8ad92c, 0xbe148f2d, 0x3d4a3ca7, 0xbf800000, 0x3d9cd634, 0x3f29802e, 0xbf2cc57e, 0xbcbfafff, 0x3e280b8a, 0x3f5ff9a3, 0xbf4e29c9, 0x3e8936d2, 0xbf49dda9, 0xbe9bf4c7, 0x3e203ea8, 0xbd4edf4d, 0xbf4e3c05};
const uint8_t _net_layout[3] = {6, 4, 3};
const uint8_t _net_layers = 3;
const uint8_t _net_total_size = 36;
uint8_t _head_rounds = 0;
uint8_t _tail_rounds = 0;
uint16_t _xy2i(uint8_t x, uint8_t y);
uint16_t _xy2i(Coords c);
@ -49,6 +55,7 @@ private:
void _place_apple();
void _init();
void _decide();
uint8_t _coords_to_field_id(Coords);
int8_t _manual_decision();
void _move();
void _draw();

61
src/effect_snake.cpp
View File

@ -124,6 +124,35 @@ int8_t SnakeEffect::_manual_decision() {
return 0;
}*/
/* This uses a predefined meandering path through the complete field.
The snake always tries to reach the field matching following criteria:
(1) Being free.
(2) Having a number smaller than the field the apple is on. (Watch out for "overflows".)
*/
int8_t SnakeEffect::_manual_decision() {
uint16_t head_index = (_head_rounds<<8) | _coords_to_field_id(_pos);
uint16_t apple_index = (_head_rounds<<8) | _coords_to_field_id(_apple);
uint16_t tail_index = (_tail_rounds<<8) | _coords_to_field_id(_tail);
if (apple_index < head_index) apple_index += 0x100;
uint8_t best_dist = 0xFF;
int8_t decision = 0;
for (int i=-1; i<=1; i++) {
Coords new_pos = _new_pos(_dir + i);
uint16_t theoretical_index = (_head_rounds<<8) | _coords_to_field_id(new_pos);
if (theoretical_index < head_index) theoretical_index += 0x100;
int16_t dist = apple_index - theoretical_index;
if (dist < 0) dist += window->height * window->width;
if (dist < best_dist && _is_free(_dir + i) && theoretical_index<tail_index && theoretical_index<tail_index) {
decision = i;
best_dist = dist;
}
}
_dir = (_dir + decision) % 4;
return decision;
}
bool SnakeEffect::_is_free(uint8_t dir) {
return _free_spaces(dir)!=0;
}
@ -150,6 +179,17 @@ uint8_t SnakeEffect::_free_spaces(uint8_t dir) {
}
}
uint8_t SnakeEffect::_coords_to_field_id(Coords c) {
if (c.y==0) return window->width - c.x;
if (c.x % 2 == 0) {
// even columns
return window->width + c.x*(window->height - 1) + c.y - 1;
} else {
// odd columns
return window->width + (c.x+1)*(window->height-1) - c.y;
}
}
uint8_t SnakeEffect::_to_apple(uint8_t dir) {
uint8_t d = dir % 4;
int8_t d_x = _apple.x - _pos.x;
@ -207,7 +247,7 @@ void SnakeEffect::_move() {
}
_round++;
_last_move_at = now;
_decide();
_manual_decision();
if (_dying==0 && !_is_free(_dir)) {
_dying = 150;
@ -215,6 +255,10 @@ void SnakeEffect::_move() {
}
_pos = _new_pos(_dir);
uint8_t index_head = _coords_to_field_id(_pos);
uint8_t index_tail = _coords_to_field_id(_tail);
if (SNAKE_DEBUG) LOGln("SnakeEffect * new_pos: %d, %d", _pos.x, _pos.y);
if (SNAKE_DEBUG) LOGln("SnakeEffect * apple: %d, %d", _apple.x, _apple.y);
if (_pos.x==_apple.x && _pos.y==_apple.y) {
@ -222,13 +266,26 @@ void SnakeEffect::_move() {
_length++;
}
for (int i=0; i<_pixels; i++) {
if (_map[i]>0 && _map[i]<_length-1) _map[i]++;
if (_map[i]>0 && _map[i]<_length-1) {
_map[i]++;
if (_map[i]==_length-1) {
_tail = _i2xy(i);
}
}
else _map[i]=0;
}
_map[_xy2i(_pos)] = 1;
if (_pos.x==_apple.x && _pos.y==_apple.y) {
_place_apple();
}
if (index_head > _coords_to_field_id(_pos)) _head_rounds++;
if (index_tail > _coords_to_field_id(_tail)) _tail_rounds++;
if (_head_rounds > 0 && _head_rounds > 0) {
uint8_t min = (_head_rounds < _tail_rounds) ? _tail_rounds : _head_rounds;
_head_rounds -= min;
_tail_rounds -= min;
}
}
void SnakeEffect::_draw() {