first pass add ImGui console

5 files changed, 62 insertions, 4 deletions

diff --git a/src/game.cpp b/src/game.cpp
index cfb6d7c..a48cbfe 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -1,8 +1,15 @@
 
 #include "game.hpp"
+#include "imgui.h"
 
 GameSettings pkeSettings{};
 
+const uint64_t consoleBufferCount = 30;
+const uint64_t consoleLineLength = 128;
+
+char consoleBuffer[consoleBufferCount][consoleLineLength];
+long consoleBufferIndex = 0;
+
 void GameTick(double delta) {
 	/*
 	 * ECS_Tick() gets called first because it updates the public
@@ -10,3 +17,47 @@ void GameTick(double delta) {
 	 */
 	ECS_Tick(delta);
 }
+
+void RecordImGuiConsole(bool *pOpen) {
+	static bool scrollToBottom = true;
+	if (!ImGui::Begin("Console", pOpen)) {
+		ImGui::End();
+		return;
+	}
+	ImVec2 region = ImGui::GetContentRegionAvail();
+	region.y -= 27;
+	if (ImGui::BeginListBox("##ConsoleHistory", region)) {
+		for (long i = consoleBufferIndex + 1; i < consoleBufferCount; ++i) {
+			ImGui::Text("%s", consoleBuffer[i]);
+		}
+		for (long i = 0; i < consoleBufferIndex; ++i) {
+			ImGui::Text("%s", consoleBuffer[i]);
+		}
+		if (scrollToBottom) ImGui::SetScrollHereY(1);
+		scrollToBottom = false;
+		ImGui::EndListBox();
+	}
+	ImGui::Separator();
+	if (ImGui::InputText("##ConsoleInput", consoleBuffer[consoleBufferIndex], consoleLineLength, ImGuiInputTextFlags_EnterReturnsTrue)) {
+		// TODO parse and execute.
+		scrollToBottom = true;
+		consoleBufferIndex = (consoleBufferIndex + 1) % consoleBufferCount;
+		memset(consoleBuffer[consoleBufferIndex], '\0', consoleLineLength);
+	}
+	auto flags = (ImGuiFocusedFlags_ChildWindows);
+	if (ImGui::IsWindowFocused(flags) && !ImGui::IsAnyItemFocused() && !ImGui::IsMouseClicked(ImGuiMouseButton_Left) && !ImGui::IsMouseClicked(ImGuiMouseButton_Left, true)) {
+		ImGui::SetKeyboardFocusHere(-1);
+	}
+	ImGui::End();
+}
+
+void RecordImGuiEditor() {
+	RecordImGuiConsole(&pkeSettings.isShowingEditor);
+}
+
+void GameInit() {
+	for (long i = 0; i < consoleBufferCount; ++i) {
+		memset(consoleBuffer[i], '\0', consoleLineLength);
+	}
+	RegisterCallback("RenderImGui", RecordImGuiEditor);
+}
diff --git a/src/game.hpp b/src/game.hpp
index fad551b..7159e0c 100644
--- a/src/game.hpp
+++ b/src/game.hpp
@@ -4,6 +4,8 @@
 #include <chrono>
 #include <cstdint>
 
+#include "event.hpp"
+#include "imgui.h"
 #include "ecs.hpp"
 
 using GameTimeDuration = std::chrono::duration<int64_t, std::nano>;
@@ -15,6 +17,7 @@ struct GameSettings {
 	bool isGameRunning = true;
 	bool isGamePaused = false;
 	bool isFramerateUnlocked = true;
+	bool isShowingEditor = true;
 	int64_t targetFPS = 144;
 	int64_t minFPS = 20;
 	double deltaPerFrame = 1 / double(targetFPS);
@@ -23,6 +26,7 @@ struct GameSettings {
 
 extern GameSettings pkeSettings;
 
+void GameInit();
 void GameTick(double delta);
 
 #endif /* PKE_GAME_HPP */
diff --git a/src/main.cpp b/src/main.cpp
index b5a0697..b99aca2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -28,6 +28,7 @@ int main() {
 	printf("PKE ENTERING\n");
 	try {
 		AssetManagerInit();
+		GameInit();
 		ECS_Init();
 		CreateWindow(&windowProps);
 
diff --git a/src/window.cpp b/src/window.cpp
index c1bca38..63b18be 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1009,6 +1009,7 @@ void RecordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex) {
 		ImGui::DockSpaceOverViewport(nullptr, ImGuiDockNodeFlags_PassthruCentralNode);
 
 		ImGui::ShowDemoWindow();
+		DispatchCabllack("RenderImGui");
 
 		ImGui::Render();
 		auto drawData = ImGui::GetDrawData();
diff --git a/src/window.hpp b/src/window.hpp
index a3cebf4..d9fc23f 100644
--- a/src/window.hpp
+++ b/src/window.hpp
@@ -1,8 +1,12 @@
 #ifndef PKE_WINDOW_HPP
 #define PKE_WINDOW_HPP
 
-#include "memory.hpp"
 #include "asset-manager.hpp"
+#include "backends/imgui_impl_glfw.h"
+#include "backends/imgui_impl_vulkan.h"
+#include "event.hpp"
+#include "imgui.h"
+#include "memory.hpp"
 
 #include <cstring>
 #include <cstdio>
@@ -10,9 +14,6 @@
 #include <cassert>
 #include <GLFW/glfw3.h>
 #include <vulkan/vulkan.h>
-#include "backends/imgui_impl_glfw.h"
-#include "backends/imgui_impl_vulkan.h"
-#include "imgui.h"
 
 const unsigned int MAX_FRAMES_IN_FLIGHT = 2;