Changeset 301c90a in opengl-game for vulkan-game.cpp

Timestamp:

Mar 13, 2021, 10:37:06 PM (4 years ago)

Author:

Dmitry Portnoy <dportnoy@…>

Branches:

feature/imgui-sdl

Children:

d255d52

Parents:

187b0f5

Message:

Implement the start of a generic UI system built on top of IMGUI, which can reposition elements when the screen is resized, and use it in VulkanGame

File:

• vulkan-game.cpp (modified) (10 diffs)

vulkan-game.cpp

@@ -8 +8 @@
 
 #include "IMGUI/imgui_impl_sdl.h"
+#include "IMGUI/imgui_internal.h" // For CalcItemSize
 
 #include "logger.hpp"
 
 #include "utils.hpp"
+
+#include "gui/imgui/button-imgui.hpp"
 
 using namespace std;
@@ -854 +857 @@
          }
 
+         // This was left ovedr from the previous SDL UI implementation.
+         // Might need something like this again when I start processing screen-specific UI events not related
+         // to the IMGUI ui, such as arrow keys for movement and other buttons for shotting or something
          // currentScreen->handleEvent(e);
       }
@@ -911 +917 @@
       ImGui::NewFrame();
 
-      (this->*currentRenderScreenFn)();
+      (this->*currentRenderScreenFn)(gui->getWindowWidth(), gui->getWindowHeight());
 
       ImGui::Render();
@@ -2187 +2193 @@
 }
 
-void VulkanGame::renderMainScreen() {
-   unsigned int windowWidth = 640;
-   unsigned int windowHeight = 480;
-
+void VulkanGame::renderMainScreen(int width, int height) {
    {
       int padding = 4;
-      ImGui::SetNextWindowPos(ImVec2(-padding, -padding), ImGuiCond_Once);
-      ImGui::SetNextWindowSize(ImVec2(windowWidth + 2 * padding, windowHeight + 2 * padding), ImGuiCond_Always);
+      ImGui::SetNextWindowPos(vec2(-padding, -padding), ImGuiCond_Once);
+      ImGui::SetNextWindowSize(vec2(width + 2 * padding, height + 2 * padding), ImGuiCond_Always);
       ImGui::Begin("WndMain", nullptr,
          ImGuiWindowFlags_NoTitleBar |
@@ -2200 +2203 @@
          ImGuiWindowFlags_NoMove);
 
-      ImGui::InvisibleButton("", ImVec2(10, 80));
-      ImGui::InvisibleButton("", ImVec2(285, 18));
-      ImGui::SameLine();
-      if (ImGui::Button("New Game")) {
+      ButtonImGui btn("New Game");
+
+      ImGui::InvisibleButton("", vec2(10, height / 6));
+      if (btn.draw((width - btn.getWidth()) / 2)) {
          goToScreen(&VulkanGame::renderGameScreen);
       }
 
-      ImGui::InvisibleButton("", ImVec2(10, 15));
-      ImGui::InvisibleButton("", ImVec2(300, 18));
-      ImGui::SameLine();
-      if (ImGui::Button("Quit")) {
+      ButtonImGui btn2("Quit");
+
+      ImGui::InvisibleButton("", vec2(10, 15));
+      if (btn2.draw((width - btn2.getWidth()) / 2)) {
          quitGame();
       }
@@ -2218 +2221 @@
 }
 
-void VulkanGame::renderGameScreen() {
+void VulkanGame::renderGameScreen(int width, int height) {
    {
-      ImGui::SetNextWindowSize(ImVec2(130, 65), ImGuiCond_Once);
-      ImGui::SetNextWindowPos(ImVec2(10, 50), ImGuiCond_Once);
+      ImGui::SetNextWindowSize(vec2(130, 65), ImGuiCond_Once);
+      ImGui::SetNextWindowPos(vec2(10, 50), ImGuiCond_Once);
       ImGui::Begin("WndStats", nullptr,
          ImGuiWindowFlags_NoTitleBar |
@@ -2234 +2237 @@
 
    {
-      ImGui::SetNextWindowSize(ImVec2(250, 35), ImGuiCond_Once);
-      ImGui::SetNextWindowPos(ImVec2(380, 10), ImGuiCond_Once);
+      ImGui::SetNextWindowSize(vec2(250, 35), ImGuiCond_Once);
+      ImGui::SetNextWindowPos(vec2(width - 260, 10), ImGuiCond_Always);
       ImGui::Begin("WndMenubar", nullptr,
          ImGuiWindowFlags_NoTitleBar |
          ImGuiWindowFlags_NoResize |
          ImGuiWindowFlags_NoMove);
-      ImGui::InvisibleButton("", ImVec2(155, 18));
+      ImGui::InvisibleButton("", vec2(155, 18));
       ImGui::SameLine();
       if (ImGui::Button("Main Menu")) {
@@ -2249 +2252 @@
 
    {
-      ImGui::SetNextWindowSize(ImVec2(200, 200), ImGuiCond_Once);
-      ImGui::SetNextWindowPos(ImVec2(430, 60), ImGuiCond_Once);
+      ImGui::SetNextWindowSize(vec2(200, 200), ImGuiCond_Once);
+      ImGui::SetNextWindowPos(vec2(width - 210, 60), ImGuiCond_Always);
       ImGui::Begin("WndDebug", nullptr,
          ImGuiWindowFlags_NoTitleBar |
@@ -2267 +2270 @@
 }
 
+// TODO: Probably turn this into a UI widget class
 void VulkanGame::renderGuiValueList(vector<UIValue>& values) {
    float maxWidth = 0.0f;
@@ -2304 +2308 @@
 }
 
-void VulkanGame::goToScreen(void (VulkanGame::* renderScreenFn)()) {
+void VulkanGame::goToScreen(void (VulkanGame::* renderScreenFn)(int width, int height)) {
    currentRenderScreenFn = renderScreenFn;