Add christmas edition

christmas/AdAstra/src/mediator/mediator.c

@@ -0,0 +1,74 @@
+#include "mediator.h"
+
+#include <stdbool.h>
+
+#include "../hardware_access/hardware_access.h"
+#include "../objects/object_container/object_container.h"
+#include "../objects/event_generator/event_generator.h"
+#include "../objects/commands/commands.h"
+#include "../objects/ai/ai.h"
+#include "../driver/display/display.h"
+#include "../driver/infra/infra.h"
+#include "../driver/sleep/sleep.h"
+
+#define TARGET_FRAME_DURATION 20	// ms
+#define DEATH_SCREEN_LENGTH 50		// frames
+#define SAVE_INTERVAL 50			// every x frames
+
+static struct {
+	uint8_t contrast;
+	uint8_t framesSinceLastSave;
+	uint8_t deathDownCounter;
+	uint8_t receivedWakeUpBitCount;
+} state = {
+	.contrast = 255
+};
+
+static inline bool handleDeathAnimation() {
+	if (isSpaceshipDestroyed()) {
+		setDisplayContrast(state.contrast * (state.deathDownCounter / DEATH_SCREEN_LENGTH));
+		if (state.deathDownCounter-- == 0) {
+			return false;
+		};
+	}
+	return true;
+}
+
+static bool frameFunction(uint8_t previousFrameTime) {
+	tickObjects(previousFrameTime);
+	handleCommands();
+	handleAI();
+	generateEvents();
+	drawFrame();
+	return handleDeathAnimation();
+}
+
+static inline void initializeGame() {
+	state.deathDownCounter = DEATH_SCREEN_LENGTH;
+	setDisplayContrast(state.contrast);
+	initializeBackground();
+	initializeObjectContainer();
+}
+
+void setupConnections() {
+	initializeHardwareAccess();
+	initializeInfra(addCommand);
+	initializeDisplay(drawObjects);
+}
+
+void startGame() {
+	while (true) {
+		initializeGame();
+		startFrameLoop(frameFunction, TARGET_FRAME_DURATION);
+	}
+}
+
+void changeDisplayContrast(int8_t by) {
+	if (by < 0) {
+		state.contrast = (state.contrast < -by) ? 0 : (state.contrast + by);
+	} else {
+		state.contrast = (state.contrast > 255 - by) ? 255 : (state.contrast + by);
+	}
+	
+	setDisplayContrast(state.contrast);
+}