improve dialogue advance and add flexible cutscene camera system

src/dialogue/DialogueDatabase.cpp

@@ -29,6 +29,19 @@ ComparisonOp DialogueDatabase::parseComparisonOp(const std::string& value) {
 	return ComparisonOp::Exists;
 }
 
+EasingType DialogueDatabase::parseEasingType(const std::string& value) {
+	if (value == "EaseInSine") return EasingType::EaseInSine;
+	if (value == "EaseOutSine") return EasingType::EaseOutSine;
+	if (value == "EaseInOutSine") return EasingType::EaseInOutSine;
+	if (value == "EaseInQuad") return EasingType::EaseInQuad;
+	if (value == "EaseOutQuad") return EasingType::EaseOutQuad;
+	if (value == "EaseInOutQuad") return EasingType::EaseInOutQuad;
+	if (value == "EaseInCubic") return EasingType::EaseInCubic;
+	if (value == "EaseOutCubic") return EasingType::EaseOutCubic;
+	if (value == "EaseInOutCubic") return EasingType::EaseInOutCubic;
+	return EasingType::Linear;
+}
+
 Condition DialogueDatabase::parseCondition(const json& j) {
 	Condition c;
 	c.flag = j.value("flag", "");
@@ -126,12 +139,44 @@ CutsceneLine DialogueDatabase::parseCutsceneLine(const json& j) {
 	return line;
 }
 
+CutsceneCameraPose DialogueDatabase::parseCutsceneCameraPose(const json& j) {
+	CutsceneCameraPose pose;
+	pose.focusX = j.value("focusX", 0.5f);
+	pose.focusY = j.value("focusY", 0.5f);
+	pose.zoom = j.value("zoom", 1.0f);
+	pose.rotationDeg = j.value("rotationDeg", 0.0f);
+	return pose;
+}
+
+CutsceneCameraSegment DialogueDatabase::parseCutsceneCameraSegment(const json& j) {
+	CutsceneCameraSegment segment;
+	segment.durationMs = j.value("durationMs", 0);
+	segment.easing = parseEasingType(j.value("easing", "EaseInOutSine"));
+	if (j.contains("from") && j["from"].is_object()) {
+		segment.from = parseCutsceneCameraPose(j["from"]);
+	}
+	if (j.contains("to") && j["to"].is_object()) {
+		segment.to = parseCutsceneCameraPose(j["to"]);
+	}
+	else {
+		segment.to = segment.from;
+	}
+	return segment;
+}
+
 StaticCutsceneDefinition DialogueDatabase::parseCutscene(const json& j) {
 	StaticCutsceneDefinition cutscene;
 	cutscene.id = j.value("id", "");
 	cutscene.background = j.value("background", "");
 	cutscene.music = j.value("music", "");
 	cutscene.skippable = j.value("skippable", true);
+	cutscene.durationMs = j.value("durationMs", 0);
+
+	if (j.contains("cameraTrack") && j["cameraTrack"].is_array()) {
+		for (const auto& item : j["cameraTrack"]) {
+			cutscene.cameraTrack.push_back(parseCutsceneCameraSegment(item));
+		}
+	}
 
 	if (j.contains("lines") && j["lines"].is_array()) {
 		for (const auto& item : j["lines"]) {