Added sprite interaction

4 files changed, 49 insertions, 14 deletions

@@ -51,4 +51,17 @@ inline bool dirHasDir(Direction value, Direction inner) {
   }
 }
 
+inline Direction oppositeDirection(Direction value) {
+  switch (value) {
+    case Direction::up: return Direction::down;
+    case Direction::up_right: return Direction::down_left;
+    case Direction::right: return Direction::left;
+    case Direction::down_right: return Direction::up_left;
+    case Direction::down: return Direction::up;
+    case Direction::down_left: return Direction::up_right;
+    case Direction::left: return Direction::right;
+    case Direction::up_left: return Direction::down_right;
+  }
+}
+
 #endif /* end of include guard: DIRECTION_H_AB66A90E */
@@ -3,6 +3,8 @@
 #include "character_system.h"
 #include "message_system.h"
 #include "script_system.h"
+#include "transform_system.h"
+#include "animation_system.h"
 
 struct Input {
   bool left = false;
@@ -26,20 +28,38 @@ void InputSystem::tick(double dt) {
             game_.getSystem<CharacterSystem>().beginCrouch(spriteId);
           }
         }
-      } else if (e.key.keysym.sym == SDLK_a) {
-        // TODO: Remove this, it's just for testing.
-        /*if (game_.getSystem<MessageSystem>().getCutsceneBarsProgress() == 1.0) {
-          game_.getSystem<MessageSystem>().hideCutsceneBars();
+      } else if (e.key.keysym.sym == SDLK_SPACE) {
+        // If there is text on screen, try to advance it.
+        if (game_.getSystem<MessageSystem>().getCutsceneBarsProgress() != 0.0) {
+          game_.getSystem<MessageSystem>().advanceText();
         } else {
-          game_.getSystem<MessageSystem>().displayCutsceneBars();
-        }*/
-        //game_.getSystem<MessageSystem>().displayMessage("Some people always try to avoid fighting when there are enemies around. You know the type, right? They use the dash ability to zoom right by. I guess you could say they're followers of \"peace at any price\".", "Sparrow", SpeakerType::Woman);
-        //game_.getSystem<MessageSystem>().displayMessage("Lucas. You're awful at hide-and-seek, you know that? Try harder.", "Kumatora", SpeakerType::Woman);
-        //game_.getSystem<MessageSystem>().displayMessage("Hi Tooth! I hope you're having a good day.", "Lucas", SpeakerType::Boy);
-        game_.getSystem<ScriptSystem>().runScript("script0001");
-      } else if (e.key.keysym.sym == SDLK_b) {
-        // TODO: Remove this, it's just for testing.
-        game_.getSystem<MessageSystem>().advanceText();
+          // Otherwise, check if there is a sprite in front of the player.
+          for (int spriteId : game_.getSprites()) {
+            Sprite& sprite = game_.getSprite(spriteId);
+            if (sprite.controllable) {
+              vec2i checkLoc = sprite.loc + (unitVecInDirection(sprite.dir) * MOVEMENT_SPEED);
+              CollisionResult collision = game_.getSystem<TransformSystem>().checkCollision(spriteId, checkLoc, sprite.dir);
+
+              // If there is a sprite to be interacted with, rotate that sprite so it is facing the player.
+              // Then, run its interaction script if present.
+              if (collision.horiz.colliderSprite != -1) {
+                game_.getSystem<AnimationSystem>().setSpriteDirection(collision.horiz.colliderSprite, oppositeDirection(sprite.dir));
+
+                Sprite& collider = game_.getSprite(collision.horiz.colliderSprite);
+                if (collider.interactionScript != "") {
+                  game_.getSystem<ScriptSystem>().runScript(collider.interactionScript);
+                }
+              } else if (collision.vert.colliderSprite != -1) {
+                game_.getSystem<AnimationSystem>().setSpriteDirection(collision.vert.colliderSprite, oppositeDirection(sprite.dir));
+
+                Sprite& collider = game_.getSprite(collision.vert.colliderSprite);
+                if (collider.interactionScript != "") {
+                  game_.getSystem<ScriptSystem>().runScript(collider.interactionScript);
+                }
+              }
+            }
+          }
+        }
       }
     } else if (e.type == SDL_KEYUP && (e.key.keysym.sym == SDLK_LSHIFT || e.key.keysym.sym == SDLK_RSHIFT)) {
       for (int spriteId : game_.getSprites()) {
@@ -51,6 +51,7 @@ void loop(Renderer& renderer) {
   game.getSystem<TransformSystem>().initSprite(flintSprite, {35*16, 19*16});
   game.getSystem<TransformSystem>().setUpCollision(flintSprite, {-8, -8}, {12, 8});
   game.getSystem<AnimationSystem>().initSprite(flintSprite, "../res/sprites/flint_anim.txt", renderer);
+  game.getSprite(flintSprite).interactionScript = "script0001";
 
   game.getSystem<CameraSystem>().setFollowingSprite(lucasSprite);
   game.getSystem<CameraSystem>().unlockCamera();
@@ -36,12 +36,13 @@ public:
   bool collidable = false;
   vec2i collisionOffset;
   vec2i collisionSize;
+  std::string interactionScript;
 
   // Animation
   bool isAnimated = false;
   int textureId;
   Direction dir = Direction::down;
-  std::string animationName;
+  std::string animationName = "still";
   int animationId = 0;
   int animationFrame = 0;
   std::vector<SpriteFrame> frames;