From 042da1570181dc80ee76860582f6a3c97641c14a Mon Sep 17 00:00:00 2001
From: Star Rauchenberger <fefferburbia@gmail.com>
Date: Mon, 14 Mar 2022 08:32:39 -0400
Subject: fmod splash screen

---
 src/renderer.cpp | 103 +++++++++++++++++++++++++++++++------------------------
 1 file changed, 58 insertions(+), 45 deletions(-)

(limited to 'src/renderer.cpp')

diff --git a/src/renderer.cpp b/src/renderer.cpp
index 90ce03f..9ef8bb9 100644
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -31,17 +31,7 @@ Renderer::Renderer()
   }
 
   texture_ptr origFade;
-  {
-    surface_ptr pfs(IMG_Load("../res/lighting.png"));
-    if (!pfs)
-    {
-      throw img_error();
-    }
-
-    origFade = texture_ptr(SDL_CreateTextureFromSurface(ren_.get(), pfs.get()));
-  }
-
-  SDL_SetTextureBlendMode(origFade.get(), SDL_BLENDMODE_BLEND);
+  loadTextureFromFile("../res/lighting.png", origFade);
 
   playerFade_ = texture_ptr(
     SDL_CreateTexture(
@@ -113,41 +103,12 @@ Renderer::Renderer()
   SDL_SetRenderDrawColor(ren_.get(), 100, 100, 100, 255);
   SDL_RenderFillRect(ren_.get(), nullptr);
 
-  {
-    surface_ptr pfs(IMG_Load("../res/player.png"));
-    if (!pfs)
-    {
-      throw img_error();
-    }
-
-    playerSheet_ = texture_ptr(SDL_CreateTextureFromSurface(ren_.get(), pfs.get()));
-  }
+  loadTextureFromFile("../res/player.png", playerSheet_);
+  loadTextureFromFile("../res/runninbloods.png", tileset_);
+  loadTextureFromFile("../res/lamp.png", lamp_);
 
-  SDL_SetTextureBlendMode(playerSheet_.get(), SDL_BLENDMODE_BLEND);
-
-  {
-    surface_ptr pfs(IMG_Load("../res/runninbloods.png"));
-    if (!pfs)
-    {
-      throw img_error();
-    }
-
-    tileset_ = texture_ptr(SDL_CreateTextureFromSurface(ren_.get(), pfs.get()));
-  }
-
-  SDL_SetTextureBlendMode(tileset_.get(), SDL_BLENDMODE_BLEND);
-
-  {
-    surface_ptr pfs(IMG_Load("../res/lamp.png"));
-    if (!pfs)
-    {
-      throw img_error();
-    }
-
-    lamp_ = texture_ptr(SDL_CreateTextureFromSurface(ren_.get(), pfs.get()));
-  }
-
-  SDL_SetTextureBlendMode(lamp_.get(), SDL_BLENDMODE_BLEND);
+  loadTextureFromFile("../res/title0.png", titles_[0]);
+  SDL_QueryTexture(titles_[0].get(), nullptr, nullptr, &titleWidths_[0], &titleHeights_[0]);
 }
 
 void Renderer::renderGame(
@@ -354,6 +315,47 @@ void Renderer::renderGame(
   SDL_RenderPresent(ren_.get());
 }
 
+void Renderer::renderTitle(int num, double fade) {
+  texture_ptr canvas(
+    SDL_CreateTexture(
+      ren_.get(),
+      SDL_PIXELFORMAT_RGBA8888,
+      SDL_TEXTUREACCESS_TARGET,
+      GAME_WIDTH,
+      GAME_HEIGHT));
+
+  if (!canvas)
+  {
+    throw sdl_error();
+  }
+
+  SDL_SetRenderTarget(ren_.get(), canvas.get());
+  SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_NONE);
+  SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, 255);
+  SDL_RenderClear(ren_.get());
+
+  if (fade > 0) {
+    SDL_Rect rect {
+      (GAME_WIDTH - titleWidths_[num]) / 2,
+      (GAME_HEIGHT - titleHeights_[num]) / 2,
+      titleWidths_[num],
+      titleHeights_[num]
+    };
+
+    SDL_RenderCopy(ren_.get(), titles_[num].get(), nullptr, &rect);
+
+    if (fade < 1) {
+      SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_BLEND);
+      SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, (1.0 - fade) * 255);
+      SDL_RenderFillRect(ren_.get(), nullptr);
+    }
+  }
+
+  SDL_SetRenderTarget(ren_.get(), nullptr);
+  SDL_RenderCopy(ren_.get(), canvas.get(), nullptr, nullptr);
+  SDL_RenderPresent(ren_.get());
+}
+
 std::tuple<int, int, int, int> Renderer::calculateZoomRect(const Game& game)
 {
   int x = game.map.getTrueX(game.curBoundX) * TILE_WIDTH;
@@ -375,3 +377,14 @@ std::tuple<int, int, int, int> Renderer::calculateZoomRect(const Game& game)
 
   return {x, y, w, h};
 }
+
+void Renderer::loadTextureFromFile(std::string_view path, texture_ptr& texture) {
+  surface_ptr pfs(IMG_Load(path.data()));
+  if (!pfs)
+  {
+    throw img_error();
+  }
+
+  texture = texture_ptr(SDL_CreateTextureFromSurface(ren_.get(), pfs.get()));
+  SDL_SetTextureBlendMode(texture.get(), SDL_BLENDMODE_BLEND);
+}
-- 
cgit 1.4.1