68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
#pragma once
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#include "activities/Activity.h"
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class SnakeActivity final : public Activity {
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public:
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explicit SnakeActivity(GfxRenderer& renderer, MappedInputManager& mappedInput)
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: Activity("Snake", renderer, mappedInput) {}
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void onEnter() override;
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void onExit() override;
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void loop() override;
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bool skipLoopDelay() override { return true; }
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void render(RenderLock&&) override;
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private:
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enum class Dir { Up, Down, Left, Right };
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static constexpr int BLOCK = 28;
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static constexpr int HEADER_H = 34;
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static constexpr int FOOTER_H = 38;
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static constexpr int ARROW_SIZE = 16;
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static constexpr int ARROW_BOTTOM_PAD = 14;
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static constexpr int MAX_SNAKE_LEN = 2048;
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static constexpr unsigned long TICK_START_MS = 320;
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static constexpr unsigned long TICK_MIN_MS = 200;
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static constexpr unsigned long TICK_STEP_MS = 6;
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static constexpr int POINTS_PER_FOOD = 10;
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static constexpr int SPEEDUP_EVERY_POINTS = 50;
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static constexpr unsigned long GAME_OVER_LOCKOUT_MS = 3000;
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int screenW_ = 0;
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int screenH_ = 0;
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int cols_ = 0;
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int rows_ = 0;
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int fieldLeft_ = 0;
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int fieldTop_ = 0;
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int snakeX_[MAX_SNAKE_LEN];
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int snakeY_[MAX_SNAKE_LEN];
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int headIdx_ = 0;
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int length_ = 0;
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Dir dir_ = Dir::Right;
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Dir pendingDir_ = Dir::Right;
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int foodX_ = 0;
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int foodY_ = 0;
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int score_ = 0;
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unsigned long tickInterval_ = TICK_START_MS;
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bool gameOver_ = false;
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bool won_ = false;
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bool renderPending_ = false;
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unsigned long lastMove_ = 0;
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unsigned long gameOverAt_ = 0;
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void resetGame();
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void placeFood();
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bool isSnakeCell(int x, int y) const;
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void handleDirectionInput();
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void updateGame();
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void drawFooterLabels() const;
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void drawArrow(Dir dir, int cx, int cy, int size) const;
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};
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