From ce0628c5ad96e094db12a67d4e98b445fa873ad3 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Sun, 14 Feb 2021 16:13:08 -0500
Subject: Added map fadeouts

Screen fadeouts and map fadeouts are now handled by the effect system.
---
 src/renderer.cpp | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 50 insertions(+), 2 deletions(-)

(limited to 'src/renderer.cpp')

diff --git a/src/renderer.cpp b/src/renderer.cpp
index 0e5f8f1..c80b0d3 100644
--- a/src/renderer.cpp
+++ b/src/renderer.cpp
@@ -6,6 +6,7 @@
 #include "transform_system.h"
 #include "camera_system.h"
 #include "message_system.h"
+#include "effect_system.h"
 
 Renderer::Renderer() {
   win_ = window_ptr(
@@ -110,10 +111,22 @@ void Renderer::renderSprite(const Sprite& sprite) {
 }
 
 void Renderer::render(Game& game) {
+  auto& effects = game.getSystem<EffectSystem>();
+
   if (cachedMapName_ != game.getMap().getName()) {
     cachedMapName_ = game.getMap().getName();
     renLay1_ = renderMapLayer(game.getMap(), 0);
     renLay0_ = renderMapLayer(game.getMap(), 1);
+
+    vec2i mapBounds = game.getMap().getMapSize() * game.getMap().getTileSize();
+    mapSwapTex_.reset(SDL_CreateTexture(
+      ren_.get(),
+      SDL_PIXELFORMAT_RGBA8888,
+      SDL_TEXTUREACCESS_TARGET,
+      mapBounds.w(),
+      mapBounds.h()));
+
+    SDL_SetTextureBlendMode(mapSwapTex_.get(), SDL_BLENDMODE_BLEND);
   }
 
   vec2i mapBounds = game.getMap().getMapSize() * game.getMap().getTileSize();
@@ -135,14 +148,48 @@ void Renderer::render(Game& game) {
   SDL_SetRenderDrawColor(ren_.get(), 255, 255, 255, 255);
   SDL_RenderClear(ren_.get());
 
+  // Render lower map layer
   SDL_RenderCopy(ren_.get(), renLay1_.get(), nullptr, nullptr);
 
+  if (effects.isMapFaded()) {
+    SDL_SetRenderTarget(ren_.get(), mapSwapTex_.get());
+    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, 0);
+    SDL_RenderClear(ren_.get());
+    SDL_RenderCopy(ren_.get(), renLay1_.get(), nullptr, nullptr);
+
+    SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_MOD);
+    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, 255);
+    SDL_RenderFillRect(ren_.get(), nullptr);
+
+    SDL_SetRenderTarget(ren_.get(), canvas.get());
+    SDL_SetTextureAlphaMod(mapSwapTex_.get(), effects.getMapFadeProgress() * 255);
+    SDL_RenderCopy(ren_.get(), mapSwapTex_.get(), nullptr, nullptr);
+  }
+
+  // Render normal sprite layer
   for (const Sprite& sprite : game.getSystem<TransformSystem>().getSpritesByY(SpriteLayer::Normal) | game.spriteView()) {
     renderSprite(sprite);
   }
 
+  // Render upper map layer
   SDL_RenderCopy(ren_.get(), renLay0_.get(), nullptr, nullptr);
 
+  if (effects.isMapFaded()) {
+    SDL_SetRenderTarget(ren_.get(), mapSwapTex_.get());
+    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, 0);
+    SDL_RenderClear(ren_.get());
+    SDL_RenderCopy(ren_.get(), renLay0_.get(), nullptr, nullptr);
+
+    SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_MOD);
+    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, 255);
+    SDL_RenderFillRect(ren_.get(), nullptr);
+
+    SDL_SetRenderTarget(ren_.get(), canvas.get());
+    SDL_SetTextureAlphaMod(mapSwapTex_.get(), effects.getMapFadeProgress() * 255);
+    SDL_RenderCopy(ren_.get(), mapSwapTex_.get(), nullptr, nullptr);
+  }
+
+  // Render above sprite layer
   for (const Sprite& sprite : game.getSystem<TransformSystem>().getSpritesByY(SpriteLayer::Above) | game.spriteView()) {
     renderSprite(sprite);
   }
@@ -170,6 +217,7 @@ void Renderer::render(Game& game) {
   SDL_RenderCopy(ren_.get(), canvas.get(), &cameraField, nullptr);
 
   if (game.getSystem<MessageSystem>().getCutsceneBarsProgress() > 0) {
+    SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_NONE);
     SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, 255);
 
     int topBarHeight = 16.0 * game.getSystem<MessageSystem>().getCutsceneBarsProgress();
@@ -277,9 +325,9 @@ void Renderer::render(Game& game) {
     }
   }
 
-  if (game.getFadeoutProgress() > 0.0) {
+  if (effects.isScreenFaded()) {
     SDL_SetRenderDrawBlendMode(ren_.get(), SDL_BLENDMODE_BLEND);
-    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, game.getFadeoutProgress() * 255);
+    SDL_SetRenderDrawColor(ren_.get(), 0, 0, 0, effects.getScreenFadeProgress() * 255);
     SDL_RenderFillRect(ren_.get(), nullptr);
   }
 
-- 
cgit 1.4.1