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Code Issues 8 Releases Activity

SnakeEffect now turns into a random direction when hitting a wall. The code is now also a whole lot cleaner.

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This commit is contained in:
Fabian Schlenz
2019-06-04 05:57:27 +02:00
parent 94687bab36
commit 96442b48cc
2 changed files with 44 additions and 20 deletions
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12
include/effect_snake.h
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@@ -7,11 +7,17 @@
class SnakeEffect : public Effect {
private:
Coords coords;
uint8_t direction;
uint8_t hue;
uint8_t run;
uint8_t direction = 1;
uint8_t hue = 0;
uint8_t run = 0;
Window window = {0, 0, LED_WIDTH, LED_HEIGHT-6};
bool is_turn_needed();
void turn_random();
bool turn_right();
bool turn_left();
bool is_direction_okay(uint8_t direction);
public:
SnakeEffect();
void loop();
boolean valid_position(Coords c);
Coords update_position(Coords c, uint8_t direction);

52
src/effect_snake.cpp
View File

@@ -1,22 +1,15 @@
#include "effect_snake.h"
#include "functions.h"
SnakeEffect::SnakeEffect() {
this->coords = {0, 0};
}
void SnakeEffect::loop() {
if (run++ % EFFECT_SNAKE_SLOWDOWN == 0) { // Change the coordinates only on every n-th run.
uint8_t r = random8(EFFECT_SNAKE_DIRECTION_CHANGE);
if (r==0 && valid_position(update_position(this->coords, direction+1))) {
direction++;
} else if (r==1 && valid_position(update_position(this->coords, direction-1))) {
direction--;
} else if (!valid_position(update_position(this->coords, direction))) {
if (valid_position(update_position(this->coords, direction+1))) {
direction++;
} else if (valid_position(update_position(this->coords, direction-1))) {
direction--;
}
}
if (random8(EFFECT_SNAKE_DIRECTION_CHANGE)==0 || is_turn_needed()) turn_random();
this->coords = update_position(this->coords, direction);
this->coords = update_position(this->coords, this->direction);
}
fadeToBlackBy(leds, LED_COUNT, 2);
@@ -24,6 +17,35 @@ void SnakeEffect::loop() {
hue++;
}
void SnakeEffect::turn_random() {
if ((random8() & 1) == 0) {
turn_right() || turn_left();
} else {
turn_left() || turn_right();
}
}
bool SnakeEffect::turn_left() {
if (!is_direction_okay(this->direction - 1)) return false;
this->direction--;
return true;
}
bool SnakeEffect::turn_right() {
if (!is_direction_okay(this->direction + 1)) return false;
this->direction++;
return true;
}
bool SnakeEffect::is_turn_needed() {
return !is_direction_okay(this->direction);
}
bool SnakeEffect::is_direction_okay(uint8_t dir) {
Coords c = update_position(this->coords, dir);
return c.x<window.w && c.y<window.h;
}
Coords SnakeEffect::update_position(Coords original, uint8_t direction) {
direction = direction % 4;
if (direction == 0) original.y--;
@@ -33,8 +55,4 @@ Coords SnakeEffect::update_position(Coords original, uint8_t direction) {
return original;
}
boolean SnakeEffect::valid_position(Coords c) {
return c.x<window.w && c.y<window.h;
}
boolean SnakeEffect::can_be_shown_with_clock() { return true; }