Merge pull request #117 from gsemaj/slider

Load sliders from paths.json

src/TableData.cpp

@@ -40,7 +40,7 @@ void TableData::init() {
         std::cerr << "[WARN] Malformed NPCs.json file! Reason:" << err.what() << std::endl;
     }
 
-    loadPaths(); // load paths
+    loadPaths(&nextId); // load paths
 
     // load everything else from xdttable
     std::cout << "[INFO] Parsing xdt.json..." << std::endl;
@@ -222,7 +222,7 @@ int TableData::getItemType(int itemSet) {
 /*
  * Load paths from paths JSON.
  */
-void TableData::loadPaths() {
+void TableData::loadPaths(int* nextId) {
     try {
         std::ifstream inFile(settings::PATHJSON);
         nlohmann::json pathData;
@@ -237,6 +237,23 @@ void TableData::loadPaths() {
         }
         std::cout << "[INFO] Loaded " << TransportManager::SkywayPaths.size() << " skyway paths" << std::endl;
 
+        // slider circuit
+        int sliders = 0;
+        nlohmann::json pathDataSlider = pathData["slider"];
+        for (nlohmann::json::iterator _sliderPoint = pathDataSlider.begin(); _sliderPoint != pathDataSlider.end(); _sliderPoint++) {
+            auto sliderPoint = _sliderPoint.value();
+            if (sliderPoint["stop"] && sliders % 2 == 0) { // check if this point in the circuit is a stop
+                // spawn a slider
+                std::cout << "bus ID was " << *nextId << std::endl;
+                BaseNPC* slider = new BaseNPC(sliderPoint["iX"], sliderPoint["iY"], sliderPoint["iZ"], 1, (*nextId)++, NPC_BUS);
+                NPCManager::NPCs[slider->appearanceData.iNPC_ID] = slider;
+                NPCManager::updateNPCPosition(slider->appearanceData.iNPC_ID, slider->appearanceData.iX, slider->appearanceData.iY, slider->appearanceData.iZ);
+                // set slider path to a rotation of the circuit
+                constructPathSlider(pathDataSlider, 0, slider->appearanceData.iNPC_ID);
+                sliders++;
+            }
+        }
+
         // npc paths
         nlohmann::json pathDataNPC = pathData["npc"];
         for (nlohmann::json::iterator npcPath = pathDataNPC.begin(); npcPath != pathDataNPC.end(); npcPath++) {
@@ -271,6 +288,33 @@ void TableData::constructPathSkyway(nlohmann::json::iterator _pathData) {
     TransportManager::SkywayPaths[pathData["iRouteID"]] = points;
 }
 
+void TableData::constructPathSlider(nlohmann::json points, int rotations, int sliderID) {
+
+    std::queue<WarpLocation> route;
+    std::rotate(points.begin(), points.begin() + rotations, points.end()); // rotate points
+    nlohmann::json::iterator _point = points.begin(); // iterator
+    auto point = _point.value();
+    WarpLocation from = { point["iX"] , point["iY"] , point["iZ"] }; // point A coords
+    int stopTime = point["stop"] ? SLIDER_STOP_TICKS : 0; // arbitrary stop length
+    for (_point++; _point != points.end(); _point++) { // loop through all point Bs
+        point = _point.value();
+        for (int i = 0; i < stopTime + 1; i++) // repeat point if it's a stop
+            route.push(from); // add point A to the queue
+        WarpLocation to = { point["iX"] , point["iY"] , point["iZ"] }; // point B coords
+        float curve = 1;
+        if (stopTime > 0) { // point A is a stop
+            curve = 2.0f;
+        } else if (point["stop"]) { // point B is a stop
+            curve = 0.35f;
+        }
+        TransportManager::lerp(&route, from, to, SLIDER_SPEED, curve); // lerp from A to B (arbitrary speed)
+        from = to; // update point A
+        stopTime = point["stop"] ? SLIDER_STOP_TICKS : 0;
+    }
+    std::rotate(points.rbegin(), points.rbegin() + rotations, points.rend()); // undo rotation
+    TransportManager::NPCQueues[sliderID] = route;
+}
+
 void TableData::constructPathNPC(nlohmann::json::iterator _pathData) {
     auto pathData = _pathData.value();
     // Interpolate

src/TableData.hpp

@@ -8,7 +8,8 @@ namespace TableData {
     void cleanup();
 
     int getItemType(int);
-    void loadPaths();
+    void loadPaths(int*);
     void constructPathSkyway(nlohmann::json::iterator);
+    void constructPathSlider(nlohmann::json, int, int);
     void constructPathNPC(nlohmann::json::iterator);
 }

src/TransportManager.cpp

@@ -17,18 +17,6 @@ void TransportManager::init() {
 
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_REGIST_TRANSPORTATION_LOCATION, transportRegisterLocationHandler);
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_PC_WARP_USE_TRANSPORTATION, transportWarpHandler);
-
-    BaseNPC* bus = new BaseNPC(220447, 162431, -3650, 1, NPCManager::nextId++, NPC_BUS);
-    NPCManager::NPCs[bus->appearanceData.iNPC_ID] = bus;
-    ChunkManager::addNPC(bus->appearanceData.iX, bus->appearanceData.iY, bus->appearanceData.iNPC_ID);
-    std::queue<WarpLocation> busPoints;
-    WarpLocation start = { bus->appearanceData.iX, bus->appearanceData.iY, -3650 };
-    WarpLocation end = { 220441, 188102, -3653 };
-    busPoints.push(start);
-    TransportManager::lerp(&busPoints, start, end, 1000);
-    busPoints.push(end);
-    TransportManager::lerp(&busPoints, end, start, 1000);
-    NPCQueues[bus->appearanceData.iNPC_ID] = busPoints;
 }
 
 void TransportManager::transportRegisterLocationHandler(CNSocket* sock, CNPacketData* data) {
@@ -323,17 +311,21 @@ void TransportManager::stepNPCPathing() {
 /*
  * Linearly interpolate between two points and insert the results into a queue.
  */
-void TransportManager::lerp(std::queue<WarpLocation>* queue, WarpLocation start, WarpLocation end, int gapSize) {
+void TransportManager::lerp(std::queue<WarpLocation>* queue, WarpLocation start, WarpLocation end, int gapSize, float curve) {
     int dXY = hypot(end.x - start.x, end.y - start.y); // XY plane distance
     int distanceBetween = hypot(dXY, end.z - start.z); // total distance
-    int lerps = distanceBetween / gapSize; // integer division to ensure a whole number of in-between points
-    for (int i = 0; i < lerps; i++) {
+    int lerps = distanceBetween / gapSize; // number of intermediate points to add
+    for (int i = 1; i <= lerps; i++) {
         WarpLocation lerp;
         // lerp math
-        float frac = (i + 1) * 1.0f / (lerps + 1);
+        //float frac = i / (lerps + 1);
+        float frac = powf(i, curve) / powf(lerps + 1, curve);
         lerp.x = (start.x * (1.0f - frac)) + (end.x * frac);
         lerp.y = (start.y * (1.0f - frac)) + (end.y * frac);
         lerp.z = (start.z * (1.0f - frac)) + (end.z * frac);
         queue->push(lerp); // add lerp'd point
     }
 }
+void TransportManager::lerp(std::queue<WarpLocation>* queue, WarpLocation start, WarpLocation end, int gapSize) {
+    lerp(queue, start, end, gapSize, 1);
+}

src/TransportManager.hpp

@@ -5,6 +5,9 @@
 
 #include <unordered_map>
 
+const int SLIDER_SPEED = 1200;
+const int SLIDER_STOP_TICKS = 8;
+
 struct WarpLocation;
 
 struct TransportRoute {
@@ -31,5 +34,6 @@ namespace TransportManager {
     void stepNPCPathing();
     void stepSkywaySystem();
 
+    void lerp(std::queue<WarpLocation>*, WarpLocation, WarpLocation, int, float);
     void lerp(std::queue<WarpLocation>*, WarpLocation, WarpLocation, int);
 }