Added sliders to the settings menu

#7

1 files changed, 54 insertions, 1 deletions

@@ -1,4 +1,5 @@
 #include "renderer.h"
+#include <deque>
 #include <iostream>
 #include "consts.h"
 #include "game.h"
@@ -570,11 +571,33 @@ void Renderer::renderMenu(Game& game, const Menu& menu) {
   SDL_RenderFillRect(ren_.get(), nullptr);
 
   const int lineHeight = 16;
+  const int sliderBarWidth = 9;
   int totalHeight = menu.getItems().size() * lineHeight;
   std::vector<vec2i> positions;
+  std::deque<MessageCache> sliderText;
+  int maxSliderLineWidth = 0;
+  int sliderAlignX = 0;
 
+  // First, find all of the sliders so we can figure out how to align them.
+  for (const MenuItem& menuItem : menu.getItems()) {
+    if (menuItem.type == MenuType::Slider) {
+      MessageCache output;
+      renderMessageLine(output, menuItem.text, game);
+
+      int width = output.charIndexToWidth.back() + sliderBarWidth * menuItem.maxValue;
+      if (width > maxSliderLineWidth) {
+        maxSliderLineWidth = width;
+        sliderAlignX = (CANVAS_WIDTH - maxSliderLineWidth) / 2 + output.charIndexToWidth.back();
+      }
+
+      sliderText.push_back(std::move(output));
+    }
+  }
+
+  // Now, render all of the items.
   int index = 0;
   for (const MenuItem& menuItem : menu.getItems()) {
+    int lineY = (CANVAS_HEIGHT - totalHeight) / 2 + lineHeight * index;
     switch (menuItem.type) {
       case MenuType::Command: {
         MessageCache output;
@@ -582,7 +605,24 @@ void Renderer::renderMenu(Game& game, const Menu& menu) {
 
         SDL_Rect dest {
           (CANVAS_WIDTH - output.charIndexToWidth.back()) / 2,
-          (CANVAS_HEIGHT - totalHeight) / 2 + lineHeight * index,
+          lineY,
+          MESSAGE_TEXT_WIDTH,
+          game.getFont().getCharacterHeight()
+        };
+
+        SDL_SetRenderTarget(ren_.get(), menuTex_.get());
+        SDL_RenderCopy(ren_.get(), output.renderedTex.get(), nullptr, &dest);
+
+        positions.emplace_back(dest.x, dest.y);
+
+        break;
+      }
+      case MenuType::Slider: {
+        MessageCache& output = sliderText.front();
+
+        SDL_Rect dest {
+          sliderAlignX - output.charIndexToWidth.back(),
+          lineY,
           MESSAGE_TEXT_WIDTH,
           game.getFont().getCharacterHeight()
         };
@@ -592,6 +632,19 @@ void Renderer::renderMenu(Game& game, const Menu& menu) {
 
         positions.emplace_back(dest.x, dest.y);
 
+        for (int j = 0; j < menuItem.maxValue; j++) {
+          int boxTexId = menuItem.value > j ? loadImageFromFile("../res/slider_on.png") : loadImageFromFile("../res/slider_off.png");
+          const SDL_Rect boxDest {
+            sliderAlignX + j * sliderBarWidth,
+            lineY + 2,
+            8,
+            8 };
+          SDL_SetRenderTarget(ren_.get(), menuTex_.get());
+          SDL_RenderCopy(ren_.get(), textures_.at(boxTexId).get(), nullptr, &boxDest);
+        }
+
+        sliderText.pop_front();
+
         break;
       }
     }