feat: bezier courbe par courbe

src/main/java/com/tocard/cam/Camera.java

@@ -7,10 +7,19 @@ import java.util.logging.Logger;
 
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.World;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.inventory.ItemStack;
 
-public class Camera extends JavaPlugin {
+public class Camera extends JavaPlugin implements Listener {
 
     public static ArrayList<Location> curve;
     public static List<Location> controlPoints;
@@ -34,13 +43,18 @@ public class Camera extends JavaPlugin {
         this.getCommand("reset").setExecutor(new ClearPoints());
         this.getCommand("exec").setExecutor(new ExecuteTraveling());
         this.getCommand("show").setExecutor(new ShowCurve());
+
+        // Eventhandlers
+        getServer().getPluginManager().registerEvents(this, this);
     }
 
     public static void compute() {
+        int nControlPoints = controlPoints.size();
         curve = new ArrayList<>();
 
+        if (nControlPoints <= 4) {
             for (float t = 0; t < 1; t += dt) {
-            ArrayList<Location> P = new ArrayList<>(Camera.controlPoints);
+                ArrayList<Location> P = new ArrayList<>(controlPoints);
 
                 int N = P.size();
                 for (int k = N - 1; k > 0; k--) {
@@ -52,6 +66,27 @@ public class Camera extends JavaPlugin {
 
                 curve.add(P.get(0));
             }
+        } else {
+            int nBezier = (nControlPoints - 1) / 3;
+            for (int iBezier = 0; iBezier < nBezier; iBezier++) {
+                for (float t = 0; t < 1; t += dt) {
+                    ArrayList<Location> P = new ArrayList<>();
+                    for (int k = 0; k < 4; k++) {
+                        P.add(controlPoints.get(3 * iBezier + k).clone());
+                    }
+
+                    int N = P.size();
+                    for (int k = N - 1; k > 0; k--) {
+                        for (int i = 0; i < k; i++) {
+                            P.set(i, P.get(i).clone().multiply(1 - t)
+                                    .add(P.get(i + 1).clone().multiply(t)));
+                        }
+                    }
+
+                    curve.add(P.get(0));
+                }
+            }
+        }
     }
 
     public static void broadlog(String msg) {
@@ -69,4 +104,30 @@ public class Camera extends JavaPlugin {
     public void onDisable() {
         ClearPoints.clear();
     }
+
+    @EventHandler
+    public void onInteract(PlayerInteractEvent event) {
+        Action action = event.getAction();
+        Player player = event.getPlayer();
+
+        if (action.equals(Action.RIGHT_CLICK_AIR) || action.equals(Action.RIGHT_CLICK_BLOCK)) {
+            ItemStack helditem = player.getPlayer().getInventory().getItemInMainHand();
+            switch (helditem.getType()) {
+                case STICK:
+                    player.chat("/point add");
+                    break;
+                case PAPER:
+                    player.chat("/show");
+                    break;
+                case SLIME_BALL:
+                    player.chat("/exec");
+                    break;
+                case BRICK:
+                    player.chat("/reset");
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
 }

src/main/java/com/tocard/cam/ClearPoints.java

@@ -21,12 +21,15 @@ public class ClearPoints implements CommandExecutor {
     }
 
     public static void clear() {
-        Camera.broadlog("Clearing points:");
+        Camera.broadlog("Clearing points and path:");
         ListPoints.listPoints();
 
         Camera.controlPoints = new ArrayList<>();
         Camera.broadlog("Points cleared !");
 
+        Camera.curve = new ArrayList<>();
+        Camera.broadlog("Path cleared !");
+
         for (World world : Bukkit.getWorlds()) {
             for (Entity e : world.getEntities()) {
                 if (e.getScoreboardTags().contains("controlPoint")) {

src/main/java/com/tocard/cam/NewPoint.java

@@ -1,6 +1,7 @@
 package com.tocard.cam;
 
 import org.bukkit.Location;
+import org.bukkit.World;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
@@ -8,9 +9,9 @@ import org.bukkit.entity.Player;
 
 public class NewPoint implements CommandExecutor {
 
-    private Location location;
+    private static Location location;
-    private Player player;
+    private static Player player;
-    private int index;
+    private static int index;
 
     @Override
     public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
@@ -19,31 +20,16 @@ public class NewPoint implements CommandExecutor {
                 player = (Player) sender;
                 switch (args[0]) {
                     case "add":
-                        location = player.getLocation();
+                        add(args);
-                        Camera.controlPoints.add(location);
-                        Camera.broadlog("Point added: " + Camera.prettyLocation(location));
-                        ShowCurve.add(location, player.getWorld());
                         break;
                     case "ins":
-                        index = Integer.parseInt(args[1]);
+                        ins(args);
-                        location = player.getLocation();
-                        Camera.controlPoints.add(index, location);
-                        Camera.broadlog("Point added: " + Camera.prettyLocation(location));
-                        ShowCurve.insert(index, location, player.getWorld());
                         break;
                     case "rm":
-                        index = Integer.parseInt(args[1]);
+                        rm(args);
-                        location = Camera.controlPoints.get(index);
-                        Camera.controlPoints.remove(location);
-                        Camera.broadlog("Point deleted: " + Camera.prettyLocation(location));
-                        ShowCurve.rm(index);
                         break;
                     case "set":
-                        index = Integer.parseInt(args[1]);
+                        set(args);
-                        location = player.getLocation();
-                        Camera.controlPoints.set(index, location);
-                        Camera.broadlog("Point n°" + index + " set: " + Camera.prettyLocation(location));
-                        ShowCurve.set(index, location, player.getWorld());
                         break;
                     default:
                         break;
@@ -59,4 +45,54 @@ public class NewPoint implements CommandExecutor {
         }
         return true;
     }
+
+    public static void addPoint(Location point, World world) {
+        Camera.controlPoints.add(point);
+        Camera.broadlog("Point added: " + Camera.prettyLocation(point));
+        ShowCurve.add(point, world);
+    }
+
+    public static void add(String[] args) {
+        World world = player.getWorld();
+        location = player.getLocation();
+
+        if (Camera.controlPoints.size() < 4) {
+            addPoint(location, world);
+        } else {
+            int n = Camera.controlPoints.size();
+
+            Location P2 = Camera.controlPoints.get(n - 2);
+            Location P3 = Camera.controlPoints.get(n - 1);
+            Location P4 = P3.clone().multiply(2).subtract(P2);
+            Location P5 = location.clone().add(P4).multiply(0.5);
+
+            addPoint(P4, world);
+            addPoint(P5, world);
+            addPoint(location, world);
+        }
+    }
+
+    public static void ins(String[] args) {
+        index = Integer.parseInt(args[1]);
+        location = player.getLocation();
+        Camera.controlPoints.add(index, location);
+        Camera.broadlog("Point added: " + Camera.prettyLocation(location));
+        ShowCurve.insert(index, location, player.getWorld());
+    }
+
+    public static void rm(String[] args) {
+        index = Integer.parseInt(args[1]);
+        location = Camera.controlPoints.get(index);
+        Camera.controlPoints.remove(location);
+        Camera.broadlog("Point deleted: " + Camera.prettyLocation(location));
+        ShowCurve.rm(index);
+    }
+
+    public static void set(String[] args) {
+        index = Integer.parseInt(args[1]);
+        location = player.getLocation();
+        Camera.controlPoints.set(index, location);
+        Camera.broadlog("Point n°" + index + " set: " + Camera.prettyLocation(location));
+        ShowCurve.set(index, location, player.getWorld());
+    }
 }