Better working camera that is constrained in the bounds, but the animations don't follow the bounding.

boss/fight.cpp

@@ -107,6 +107,7 @@ namespace boss {
       state(State::END);
     } else {
       $ui.status(L"PLAYER REQUESTS", L"COMMIT");
+      $ui.reset_camera();
       $battle.ap_refresh();
       $battle.clear_requests();
       state(State::PLAYER_REQUESTS);

boss/ui.cpp

@@ -106,12 +106,18 @@ namespace boss {
     $arena.play_animations();
   }
 
-  void UI::damage(const std::string& actor, const std::string& target, int amount) {
+  void UI::damage(const string& actor, const std::string& target, int amount) {
     if(amount > 0) {
       $arena.attach_text(target, fmt::format("{}", amount));
       $arena.apply_effect(actor, "flame");
+      fmt::println("CAMERA zooming by 0.7 to {}", target);
+      $arena.zoom(target, 0.8f);
     } else {
       $arena.attach_text(actor, "MISSED");
     }
   }
+
+  void UI::reset_camera() {
+    $arena.reset($view_texture);
+  }
 }

boss/ui.hpp

@@ -39,5 +39,6 @@ namespace boss {
     void update_stats();
     void play_animations();
     void damage(const std::string& actor, const std::string& target, int amount);
+    void reset_camera();
   };
 }

camera.cpp

@@ -4,9 +4,10 @@
 #include <unordered_map>
 #include "components.hpp"
 #include "config.hpp"
+#include <algorithm>
 
 namespace cinematic {
-  using components::Animation, std::string;
+  using components::Animation, std::string, std::min, std::clamp;
 
   struct CameraManager {
     std::unordered_map<string, Animation> animations;
@@ -27,13 +28,38 @@ namespace cinematic {
     }
   }
 
-  Camera::Camera() :
-    anim(MGR.animations.at("pan"))
+  Camera::Camera(sf::Vector2f size) :
+    anim(MGR.animations.at("shake")),
+    base_size(size),
+    size(size)
   {
   }
 
-  void Camera::resize(float width, float height) {
-    size = {width, height};
+  void Camera::update_camera_bounds(sf::Vector2f size) {
+    // camera bounds now constrains the x/y so that the mid-point
+    // of the size won't go too far outside of the frame
+    camera_bounds = {
+      {size.x / 2.0f, size.y / 2.0f},
+      {base_size.x - size.x / 2.0f, base_size.y - size.y / 2.0f}
+    };
+
+    fmt::println("!!!!! CAMERA BOUNDS camera_bounds={},{},{},{}",
+        camera_bounds.position.x, camera_bounds.position.y,
+        camera_bounds.size.x, camera_bounds.size.y);
+  }
+
+  void Camera::scale(float ratio) {
+    size.x = base_size.x * ratio;
+    size.y = base_size.y * ratio;
+    update_camera_bounds(size);
+  }
+
+  void Camera::resize(float width) {
+    dbc::check(width <= base_size.x, "invalid width for camera");
+
+    size.x = width;
+    size.y = base_size.y * (width / base_size.x);
+    update_camera_bounds(size);
   }
 
   void Camera::style(const std::string &name) {
@@ -41,11 +67,23 @@ namespace cinematic {
   }
 
   void Camera::position(float x, float y) {
-    aimed_at = {x, y};
+    aimed_at.x = clamp(x, camera_bounds.position.x, camera_bounds.size.x);
+    aimed_at.y = clamp(y, camera_bounds.position.y, camera_bounds.size.y);
+
+    fmt::println("!!! CAMERA POSITION aimed_at={},{}; x/y={},{}; camera_bounds={},{},{},{}",
+        aimed_at.x, aimed_at.y, x, y,
+        camera_bounds.position.x, camera_bounds.position.y,
+        camera_bounds.size.x, camera_bounds.size.y);
   }
 
   void Camera::move(float x, float y) {
-    going_to = {x, y};
+    going_to.x = clamp(x, camera_bounds.position.x, camera_bounds.size.x);
+    going_to.y = clamp(y, camera_bounds.position.y, camera_bounds.size.y);
+
+    fmt::println("!!!! CAMERA MOVE going_to={},{}; x/y={},{}; camera_bounds={},{},{},{}",
+        going_to.x, going_to.y, x, y,
+        camera_bounds.position.x, camera_bounds.position.y,
+        camera_bounds.size.x, camera_bounds.size.y);
 
     // BUG: annoying special case
     if(anim.motion == ease::SLIDE) {
@@ -56,11 +94,14 @@ namespace cinematic {
     }
   }
 
-  void Camera::reset(sf::RenderTexture& target, float width, float height) {
-    size = {width, height};
-    aimed_at = {width/2, height/2};
-    going_to = {width/2, height/2};
+  void Camera::reset(sf::RenderTexture& target) {
+    size = {base_size.x, base_size.y};
+    aimed_at = {base_size.x/2, base_size.y/2};
+    going_to = {base_size.x/2, base_size.y/2};
     view = {aimed_at, size};
+    camera_bounds = {{0,0}, base_size};
+
+    // BUG: is getDefaultView different from view?
     target.setView(target.getDefaultView());
   }
 

camera.hpp

@@ -6,20 +6,24 @@ namespace cinematic {
   struct Camera {
     components::Animation anim;
     sf::View view;
+    sf::Vector2f base_size{SCREEN_WIDTH, SCREEN_HEIGHT};
     sf::Vector2f size{SCREEN_WIDTH, SCREEN_HEIGHT};
+    sf::FloatRect camera_bounds{{0,0},{SCREEN_WIDTH, SCREEN_HEIGHT}};
     sf::Vector2f aimed_at{0,0};
     sf::Vector2f going_to{0,0};
 
-    Camera();
+    Camera(sf::Vector2f base_size);
 
-    void resize(float width, float height);
+    void resize(float width);
+    void scale(float ratio);
     void position(float x, float y);
     void move(float x, float y);
     bool playing();
     void render(sf::RenderTexture& target);
     void play();
     void style(const std::string &name);
-    void reset(sf::RenderTexture& target, float width, float height);
+    void reset(sf::RenderTexture& target);
+    void update_camera_bounds(sf::Vector2f size);
   };
 
   void init();

scene.cpp

@@ -36,7 +36,7 @@ namespace scene {
   Engine::Engine(components::AnimatedScene& scene) :
     $scene(scene)
   {
-    $camera.style("shake");
+    $camera.style("dolly");
 
     for(auto& config : $scene.actors) {
       auto element = config_scene_element(config, false, false);
@@ -161,17 +161,26 @@ namespace scene {
     return pos;
   }
 
-  void Engine::zoom(int mid_x, int mid_y, int width, int height) {
-    $camera.resize(float(width), float(height));
-    $camera.move(float(mid_x), float(mid_y));
+  void Engine::zoom(float mid_x, float mid_y, float scale) {
+    $camera.scale(scale);
+    $camera.move(mid_x, mid_y);
+    $camera.play();
   }
 
-  void Engine::zoom(const std::string &cell_name) {
-    auto& cell = $ui.cell_for(cell_name);
-    zoom(cell.w, cell.h, cell.mid_x, cell.mid_y);
+  void Engine::zoom(const std::string &actor, float scale) {
+    auto& config = actor_config(actor);
+    auto bounds = config.st.sprite->getGlobalBounds();
+    float mid_x = config.pos.x + bounds.size.x / 2.0f;
+    float mid_y = config.pos.y + bounds.size.y / 2.0f;
+
+    fmt::println("CAMERA in scene::Engine I'm zooming {} by {} @ {},{} size {},{}; going_to mid={},{}",
+        actor, scale, config.pos.x, config.pos.y,
+        bounds.size.x, bounds.size.y, mid_x, mid_y);
+
+    zoom(mid_x, mid_y, scale);
   }
 
-  void Engine::reset(sf::RenderTexture& view, float width, float height) {
-    $camera.reset(view, width, height);
+  void Engine::reset(sf::RenderTexture& view) {
+    $camera.reset(view);
   }
 }

scene.hpp

@@ -34,7 +34,7 @@ namespace scene {
     std::unordered_map<std::string, int> $actor_name_ids;
     std::vector<Element> $fixtures;
     std::vector<Element> $actors;
-    cinematic::Camera $camera;
+    cinematic::Camera $camera{{BOSS_VIEW_WIDTH, BOSS_VIEW_HEIGHT}};
 
     Engine(components::AnimatedScene& scene);
 
@@ -51,8 +51,8 @@ namespace scene {
     void play_animations();
     void apply_effect(const std::string& actor, const std::string& shader);
     Element& actor_config(const std::string& actor);
-    void zoom(const std::string& cell);
-    void reset(sf::RenderTexture& view, float width, float height);
-    void zoom(int mid_x, int mid_y, int width, int height);
+    void zoom(const std::string& actor, float scale=0.9f);
+    void zoom(float mid_x, float mid_y, float scale);
+    void reset(sf::RenderTexture& view);
   };
 }

storyboard/ui.cpp

@@ -93,13 +93,11 @@ namespace storyboard {
   void UI::zoom(const std::string &cell_name) {
     auto& cell = $ui.cell_for(cell_name);
 
-    $camera.resize(float(cell.w), float(cell.h));
+    $camera.resize(float(cell.w));
     $camera.move(float(cell.mid_x), float(cell.mid_y));
   }
 
   void UI::reset() {
-    sf::FloatRect where{{0,0},{SCREEN_WIDTH, SCREEN_HEIGHT}};
-    sf::View view{where};
-    $view_texture.setView(view);
+    $camera.reset($view_texture);
   }
 }

storyboard/ui.hpp

@@ -10,7 +10,7 @@ namespace storyboard {
     guecs::UI $ui;
     sf::RenderTexture $view_texture;
     sf::Sprite $view_sprite;
-    cinematic::Camera $camera;
+    cinematic::Camera $camera{{SCREEN_WIDTH, SCREEN_HEIGHT}};
     std::shared_ptr<sf::Sound> $audio;
     std::string $zoom_target = "a";
     bool $moving = false;