fixed a lot of the zoom problems

still looks weird while moving

3 files changed, 44 insertions, 28 deletions

@@ -163,6 +163,8 @@ bool Game::movePlayer(int x, int y)
     moveProgress.start(1000/6);
     dirtyLighting = true;
 
+    std::cout << player_x << "," << player_y << std::endl;
+
     int chunkX, chunkY, old_chunkX, old_chunkY;
     toChunkPos(player_x, player_y, chunkX, chunkY);
     toChunkPos(player_oldx, player_oldy, old_chunkX, old_chunkY);
@@ -394,7 +396,7 @@ void Game::recalculateRender() {
 
           if (wallRenders.at(renderDesc) == TilesetIndex(21, 12) && renderDesc != 255) {
             //std::cout << renderDesc << std::endl;
-            std::cout << ((renderDesc & (1 << 7)) ? 'X' : 'O');
+            /*std::cout << ((renderDesc & (1 << 7)) ? 'X' : 'O');
             std::cout << ((renderDesc & (1 << 6)) ? 'X' : 'O');
             std::cout << ((renderDesc & (1 << 5)) ? 'X' : 'O');
             std::cout << std::endl;
@@ -405,7 +407,7 @@ void Game::recalculateRender() {
             std::cout << ((renderDesc & (1 << 1)) ? 'X' : 'O');
             std::cout << ((renderDesc & (1 << 2)) ? 'X' : 'O');
             std::cout << ((renderDesc & (1 << 3)) ? 'X' : 'O');
-            std::cout << std::endl;
+            std::cout << std::endl;*/
           }
         }
       }
@@ -562,8 +564,9 @@ void Game::processKickup()
 }
 
 void Game::loadMap() {
-  int newChunksHoriz = std::ceil(static_cast<double>(curZoom) * ZOOM_X_FACTOR / CHUNK_WIDTH) + 4;
-  int newChunksVert = std::ceil(static_cast<double>(curZoom) * ZOOM_Y_FACTOR / CHUNK_HEIGHT) + 4;
+  double zoomBasis = getZoomBasis();
+  int newChunksHoriz = std::ceil(zoomBasis * ZOOM_X_FACTOR / CHUNK_WIDTH) + 4;
+  int newChunksVert = std::ceil(zoomBasis * ZOOM_Y_FACTOR / CHUNK_HEIGHT) + 4;
   int curPlayerChunkX, curPlayerChunkY;
   toChunkPos(player_x, player_y, curPlayerChunkX, curPlayerChunkY);
 
@@ -584,14 +587,14 @@ void Game::loadMap() {
 
 void Game::setZoom(size_t zoom)
 {
-  if (zoom == curZoom)
+  if (zoom == curZoom || zooming)
   {
     return;
   }
 
   /*zoomProgress = 0;
   zoomLength = std::abs(static_cast<long>(zoom - curZoom)) * TILE_WIDTH;*/
-  zoomProgress.start(62 * std::abs(static_cast<long>(zoom - curZoom)) * TILE_WIDTH);
+  zoomProgress.start(62 * std::abs(static_cast<long>(zoom) - curZoom) * TILE_WIDTH);
   oldZoom = curZoom;
   curZoom = zoom;
   zooming = true;
@@ -82,12 +82,14 @@ public:
 
   int maxZoom = INIT_ZOOM;
   int curZoom = INIT_ZOOM;
-  int oldZoom;
+  int oldZoom = INIT_ZOOM;
   bool zooming = false;
   //int zoomProgress = 0;
   //int zoomLength;
   Interpolation zoomProgress;
 
+  double getZoomBasis() const { return zooming ? std::max(curZoom, oldZoom) : curZoom; }
+
   Input keystate;
   bool firstInput = false;
   Input lastInput;
@@ -125,8 +125,8 @@ void Renderer::renderGame(
   const Game& game,
   bool drawDark)
 {
-  int windowTileWidth = game.curZoom * ZOOM_X_FACTOR + 2;
-  int windowTileHeight = game.curZoom * ZOOM_Y_FACTOR + 2;
+  int windowTileWidth = game.getZoomBasis() * ZOOM_X_FACTOR + 2;
+  int windowTileHeight = game.getZoomBasis() * ZOOM_Y_FACTOR + 2;
 
   texture_ptr canvas(
     SDL_CreateTexture(
@@ -146,8 +146,8 @@ void Renderer::renderGame(
   SDL_SetRenderDrawColor(ren_.get(), rand() % 255, rand() % 255, rand() % 255, 255);
   SDL_RenderClear(ren_.get());
 
-  int leftmost = game.player_x - game.curZoom * ZOOM_X_FACTOR / 2 - 1;
-  int topmost = game.player_y - game.curZoom * ZOOM_Y_FACTOR / 2 - 1;
+  int leftmost = game.player_x - game.getZoomBasis() * ZOOM_X_FACTOR / 2 - 1;
+  int topmost = game.player_y - game.getZoomBasis() * ZOOM_Y_FACTOR / 2 - 1;
   for (int y = topmost; y < topmost + windowTileHeight; y++)
   {
     for (int x = leftmost; x < leftmost + windowTileWidth; x++)
@@ -332,31 +332,38 @@ void Renderer::renderGame(
 
   SDL_SetRenderTarget(ren_.get(), nullptr);
 
-  SDL_Rect zoomRect {
-    TILE_WIDTH, TILE_HEIGHT, (windowTileWidth - 2) * TILE_WIDTH, (windowTileHeight - 2) * TILE_HEIGHT
-  };
+  SDL_Rect zoomRect;
+  zoomRect.w = game.curZoom * ZOOM_X_FACTOR * TILE_WIDTH;
+  zoomRect.h = game.curZoom * ZOOM_Y_FACTOR * TILE_HEIGHT;
+  if (!game.zooming) {
+    zoomRect.x = TILE_WIDTH;
+    zoomRect.y = TILE_HEIGHT;
 
-  if (game.moving) {
-    if (game.player_x > game.player_oldx) {
-      zoomRect.x = game.moveProgress.getProgress(0, TILE_WIDTH);
-    } else if (game.player_x < game.player_oldx) {
-      zoomRect.x = game.moveProgress.getProgress(2*TILE_WIDTH, TILE_WIDTH);
-    }
+    if (game.moving) {
+      if (game.player_x > game.player_oldx) {
+        zoomRect.x = game.moveProgress.getProgress(0, TILE_WIDTH);
+      } else if (game.player_x < game.player_oldx) {
+        zoomRect.x = game.moveProgress.getProgress(2*TILE_WIDTH, TILE_WIDTH);
+      }
 
-    if (game.player_y > game.player_oldy) {
-      zoomRect.y = game.moveProgress.getProgress(0, TILE_HEIGHT);
-    } else if (game.player_y < game.player_oldy) {
-      zoomRect.y = game.moveProgress.getProgress(TILE_HEIGHT*2, TILE_HEIGHT);
+      if (game.player_y > game.player_oldy) {
+        zoomRect.y = game.moveProgress.getProgress(0, TILE_HEIGHT);
+      } else if (game.player_y < game.player_oldy) {
+        zoomRect.y = game.moveProgress.getProgress(TILE_HEIGHT*2, TILE_HEIGHT);
+      }
     }
-  }
+  } else {
+    int curZoomDiff = game.getZoomBasis() - game.curZoom;
+    zoomRect.x = (curZoomDiff * ZOOM_X_FACTOR / 2 + 1) * TILE_WIDTH;
+    zoomRect.y = (curZoomDiff * ZOOM_Y_FACTOR / 2 + 1) * TILE_HEIGHT;
 
-  if (game.zooming) {
     int oldWidth = game.oldZoom * ZOOM_X_FACTOR * TILE_WIDTH;
     int oldHeight = game.oldZoom * ZOOM_Y_FACTOR * TILE_HEIGHT;
 
+    int oldZoomDiff = game.getZoomBasis() - game.oldZoom;
     SDL_Rect oldRect {
-      zoomRect.w / 2 - oldWidth / 2,
-      zoomRect.h / 2 - oldHeight / 2,
+      (oldZoomDiff * ZOOM_X_FACTOR / 2 + 1) * TILE_WIDTH,
+      (oldZoomDiff * ZOOM_Y_FACTOR / 2 + 1) * TILE_HEIGHT,
       oldWidth,
       oldHeight
     };
@@ -364,14 +371,18 @@ void Renderer::renderGame(
     if (game.moving) {
       if (game.player_x > game.player_oldx) {
         oldRect.x += game.moveProgress.getProgress(0, TILE_WIDTH);
+        zoomRect.x += game.moveProgress.getProgress(0, TILE_WIDTH);
       } else if (game.player_x < game.player_oldx) {
         oldRect.x -= game.moveProgress.getProgress(TILE_WIDTH, 0);
+        zoomRect.x -= game.moveProgress.getProgress(TILE_WIDTH, 0);
       }
 
       if (game.player_y > game.player_oldy) {
         oldRect.y += game.moveProgress.getProgress(0, TILE_HEIGHT);
+        zoomRect.y += game.moveProgress.getProgress(0, TILE_HEIGHT);
       } else if (game.player_y < game.player_oldy) {
         oldRect.y -= game.moveProgress.getProgress(TILE_HEIGHT, 0);
+        zoomRect.y -= game.moveProgress.getProgress(TILE_HEIGHT, 0);
       }
     }