Added sprite pausing

All sprites are now paused when a cutscene starts and unpaused when it ends. Pausing means that the CharacterSystem and BehaviourSystem will not process them in their tick. This allows specific sprites to be unpaused during cutscenes if movement is needed.

The player character is halted and made non-controllable by the script when the cutscene starts and made controllable again when it ends. It is important to remember that if interacting with a sprite that might be moving, you have to manually call Halt() on them in their script to make them stop moving.

7 files changed, 38 insertions, 3 deletions

@@ -696,6 +696,7 @@
     <property name="collisionOffsetY" type="int" value="-8"/>
     <property name="collisionWidth" type="int" value="12"/>
     <property name="enclosureZone" value="ionia_enclosure"/>
+    <property name="interactionScript" value="talk_to_ionia"/>
     <property name="movementSpeed" type="int" value="1"/>
     <property name="shadow" type="bool" value="true"/>
     <property name="wander" type="bool" value="true"/>
@@ -49,6 +49,11 @@ function StartCutscene()
   playerSprite.controllable = false
   character():halt(playerId)
   message():displayCutsceneBars()
+
+  local allSprites = getAllSprites()
+  for k,v in pairs(allSprites) do
+    getSprite(v).paused = true
+  end
 end
 
 --- Queues a message for display.
@@ -94,6 +99,11 @@ function HideCutsceneBars()
   local playerId = getPlayerSprite()
   local playerSprite = getSprite(playerId)
   playerSprite.controllable = true
+
+  local allSprites = getAllSprites()
+  for k,v in pairs(allSprites) do
+    getSprite(v).paused = false
+  end
 end
 
 function GetPosition(spriteName)
@@ -120,6 +130,11 @@ function WaitForAnimation(spriteName)
   until sprite.animFinished
 end
 
+function Halt(spriteName)
+  local spriteId = getSpriteByAlias(spriteName)
+  character():halt(spriteId)
+end
+
 function PlaySound(filename)
   mixer():playSound("../res/sfx/" .. filename)
 end
@@ -172,3 +172,14 @@ function map2.approach_doria()
 
   HideCutsceneBars()
 end
+
+function map2.talk_to_ionia()
+  Halt("ionia")
+  StartCutscene()
+  SetAnimation("ionia", "talk")
+  DisplayMessage("* Kumatora!", "Ionia", SpeakerType.MAN)
+  WaitForEndOfMessage()
+
+  SetAnimation("ionia", "still")
+  HideCutsceneBars()
+end
@@ -9,7 +9,7 @@ void BehaviourSystem::tick(double dt) {
   while (timer_.step()) {
     for (int spriteId : game_.getSprites()) {
       Sprite& sprite = game_.getSprite(spriteId);
-      if (sprite.wander) {
+      if (sprite.wander && !sprite.paused) {
         // 75% chance of changing what's happening
         if (std::bernoulli_distribution(0.75)(game_.getRng())) {
           // 50% chance of choosing a direction or stopping
@@ -96,7 +96,7 @@ void CharacterSystem::tick(double dt) {
     for (int spriteId : game_.getSprites()) {
       Sprite& sprite = game_.getSprite(spriteId);
 
-      if (sprite.orientable) {
+      if (sprite.orientable && !sprite.paused) {
         vec2i pLoc = sprite.loc;
 
         if (sprite.characterState == CharacterState::Still ||
@@ -36,7 +36,8 @@ ScriptSystem::ScriptSystem(Game& game) : game_(game) {
     "getCurrentFrame", [] (const Sprite& sprite) -> const SpriteFrame& {
       return sprite.frames[sprite.animations[sprite.animationId].frameIndices[sprite.animationFrame]];
     },
-    "persistent", &Sprite::persistent);
+    "persistent", &Sprite::persistent,
+    "paused", &Sprite::paused);
 
   engine_.new_usertype<MessageSystem>(
     "message",
@@ -168,6 +169,12 @@ ScriptSystem::ScriptSystem(Game& game) : game_(game) {
     });
 
   engine_.set_function(
+    "getAllSprites",
+    [&] () -> const std::set<int>& {
+      return game_.getSprites();
+    });
+
+  engine_.set_function(
     "loadMap",
     [&] (std::string filename) {
       game_.loadMap(filename);
@@ -43,6 +43,7 @@ public:
 
   std::string alias;
   bool persistent = false;
+  bool paused = false;
 
   // Transform
   vec2i loc { 0, 0 };