Implament 2d Render

* implament 2d render

* add 2d render support properly

* fixes: debug window programmer error

* update log levels

* update shader system

* fix logging on windows

* load exising shaders from disk

* use direct addresing for batched textures

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update src/Renderer/Texture.h

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

.vs/CMakeWorkspaceSettings.json

@@ -0,0 +1,3 @@
+{
+  "enableCMake": true
+}

.vs/ProjectSettings.json

@@ -1,3 +1,3 @@
 {
-  "CurrentProjectSetting": "x64-Debug"
+  "CurrentProjectSetting": "x64-Release"
 }

.vs/VSWorkspaceState.json

@@ -1,6 +1,5 @@
 {
   "DevContainersInfoBarHidden": true,
-  "ActiveTargetSystem": "Local Machine",
   "OutputFoldersPerTargetSystem": {
     "Local Machine": [
       "out\\build\\x64-Debug",
@@ -11,6 +10,23 @@
     "WSL: Arch": [
       "out\\build\\x64-Debug",
       "out\\install\\x64-Debug"
+    ],
+    "WSL: Ubuntu-22.04": [
+      "out\\build\\x64-Debug",
+      "out\\install\\x64-Debug",
+      "out\\build\\x64-Release",
+      "out\\install\\x64-Release"
     ]
-  }
+  },
+  "ActiveTargetSystem": "Local Machine",
+  "ExpandedNodes": [
+    "\\sandbox",
+    "\\sandbox\\src",
+    "\\src",
+    "\\src\\Renderer",
+    "\\src\\Scene",
+    "\\src\\Scripting"
+  ],
+  "SelectedNode": "\\CMakeLists.txt",
+  "PreviewInSolutionExplorer": false
 }

CMakeLists.txt

@@ -60,6 +60,7 @@ set(ENGINE_SOURCES
     src/Renderer/Buffer.cpp
     src/Renderer/OpenGLBuffer.cpp
     src/Renderer/Renderer.cpp
+    src/Renderer/Renderer2D.cpp
     src/Shader/Shader.cpp
     src/ImGui/ImGuiLayer.cpp
     src/Renderer/VertexArray.cpp
@@ -84,6 +85,8 @@ set(ENGINE_SOURCES
     external/stb_image/src/stb_image.cpp
     src/Scripting/LuaScriptSystem.cpp
     src/Scene/Scene.cpp
+    src/Shader/ShaderLibrary.cpp
+    src/Shader/ShaderFactory.cpp
     ${IMGUI_SOURCES}
 )
 
@@ -94,14 +97,14 @@ target_include_directories(voxel-engine PUBLIC
     ${CMAKE_SOURCE_DIR}/src
     ${IMGUI_DIR}
     ${IMGUI_DIR}/backends
+    ${CMAKE_SOURCE_DIR}/build/vcpkg_installed/x86-windows/include
     ${CMAKE_SOURCE_DIR}/external/stb_image/src
     ${CMAKE_SOURCE_DIR}/external/json
     ${CMAKE_SOURCE_DIR}/external/glad/include
+    ${CMAKE_SOURCE_DIR}/build/vcpkg_installed/x86-windows/include
     ${CMAKE_SOURCE_DIR}/external/sol2
 )
 
-include_directories("/usr/include/lua5.4")
-
 target_link_libraries(voxel-engine PUBLIC 
     glfw 
     OpenGL::GL

assets/shaders/batch_renderer_2d.frag

@@ -0,0 +1,16 @@
+#version 330 core
+
+in vec4 v_Color;
+in vec2 v_TexCoord;
+in float v_TexIndex;
+in float v_TilingFactor;
+
+uniform sampler2D u_Textures[32];
+
+out vec4 FragColor;
+
+void main() {
+    vec4 texColor = v_Color;
+    texColor *= texture(u_Textures[int(v_TexIndex)], v_TexCoord * v_TilingFactor);
+    FragColor = texColor;
+}

assets/shaders/batch_renderer_2d.vert

@@ -0,0 +1,22 @@
+#version 330 core
+
+layout (location = 0) in vec3 a_Position;
+layout (location = 1) in vec4 a_Color;
+layout (location = 2) in vec2 a_TexCoord;
+layout (location = 3) in float a_TexIndex;
+layout (location = 4) in float a_TilingFactor;
+
+uniform mat4 u_ViewProjection;
+
+out vec4 v_Color;
+out vec2 v_TexCoord;
+out float v_TexIndex;
+out float v_TilingFactor;
+
+void main() {
+    v_Color = a_Color;
+    v_TexCoord = a_TexCoord;
+    v_TexIndex = a_TexIndex;
+    v_TilingFactor = a_TilingFactor;
+    gl_Position = u_ViewProjection * vec4(a_Position, 1.0);
+}

imgui.ini

@@ -35,7 +35,7 @@ Collapsed=0
 
 [Window][Stats]
 Pos=35,54
-Size=300,357
+Size=300,426
 Collapsed=0
 DockId=0x00000002,0
 
@@ -51,8 +51,8 @@ Collapsed=0
 DockId=0x00000003,0
 
 [Window][Recent Events]
-Pos=1098,15
-Size=180,265
+Pos=528,38
+Size=367,265
 Collapsed=0
 DockId=0x00000006,0
 
@@ -63,7 +63,17 @@ Collapsed=0
 DockId=0x00000005,0
 
 [Window][Lua Console]
-Pos=388,23
+Pos=377,394
+Size=520,600
+Collapsed=0
+
+[Window][Renderer Stats]
+Pos=8,51
+Size=158,106
+Collapsed=0
+
+[Window][LuaConsole##Window]
+Pos=403,332
 Size=520,600
 Collapsed=0
 
@@ -75,7 +85,7 @@ Column 0  Sort=0v
 DockNode    ID=0x00000001 Pos=35,54 Size=300,426 Split=Y
   DockNode  ID=0x00000002 Parent=0x00000001 SizeRef=300,289 Selected=0x590DF097
   DockNode  ID=0x00000003 Parent=0x00000001 SizeRef=300,54 Selected=0xAC3EC402
-DockNode    ID=0x00000004 Pos=911,15 Size=367,265 Split=X
+DockNode    ID=0x00000004 Pos=528,38 Size=367,265 Split=X
   DockNode  ID=0x00000005 Parent=0x00000004 SizeRef=75,236 Selected=0x5B89BA50
   DockNode  ID=0x00000006 Parent=0x00000004 SizeRef=73,236 Selected=0x1A7C4B8A
 

sandbox/assets/scripts/engine.lua

@@ -1,50 +1,77 @@
+---* NOTE: all numbers in Lua are floats
 ---@meta
 
 ---@class engine
+--- Terrain
 ---@field setTerrainHeight fun(height: number) # Sets the base height for terrain generation
 ---@field generateTerrainMesh fun(seed: number) # Regenerates terrain with given seed
----@field setClearColor fun(r: number, g: number, b: number, a: number) # Sets the renderer clear color
----@field isKeyPressed fun(keycode: number): boolean # Checks if a key is pressed
----@field getMousePosition fun(): number, number # Gets current mouse position
+--- Logging
 ---@field trace fun(message: string) # Logs a trace message
 ---@field log fun(message: string) # Logs an info message
 ---@field warn fun(message: string) # Logs an warn message
 ---@field error fun(message: string) # Logs an error message
 ---@field fatal fun(message: string) # Logs an error message and terminates the application
+--- Debug
 ---@field profileFunction fun(name: string) # Profiles the current function
 ---@field profileScope fun(name: string) # Profiles the current function & assigns a name
+--- Script System
 ---@field loadScript fun(filepath: string): boolean # Loads and executes a Lua script file
----@field setCameraPosition fun(x: number, y: number, z: number) # Sets camera position
----@field setCameraRotation fun(pitch: number, yaw: number) # Sets camera rotation
----@field getCameraPosition fun(): number, number, number # Gets camera position
----@field moveCameraForward fun(deltaTime: number) # Move camera forward
----@field moveCameraBackward fun(deltaTime: number) # Move camera backward
----@field moveCameraLeft fun(deltaTime: number) # Move camera left
----@field moveCameraRight fun(deltaTime: number) # Move camera right
----@field moveCameraUp fun(deltaTime: number) # Move camera up
----@field moveCameraDown fun(deltaTime: number) # Move camera down
----@field rotateCameraWithMouse fun(xOffset: number, yOffset: number, sensitivity: number) # Rotate camera with mouse
+--- Window
 ---@field setViewport fun(x: number, y: number, width: number, height: number) # Sets the viewport dimensions
+---@field setClearColor fun(r: number, g: number, b: number, a: number) # Sets the renderer clear color
+---Camera Setup
 ---@field setCameraType fun(type: string) # Sets the camera type ("orthographic" or "perspective")
 ---@field getCameraType fun(): string # Gets the current camera type
+--- Input
 ---@field isMouseButtonPressed fun(button: number): boolean # Checks if a mouse button is pressed
+---@field isKeyPressed fun(keycode: number): boolean # Checks if a key is pressed
 ---@field setMouseSensitivity fun(sensitivity: number) # Sets mouse sensitivity
 ---@field getMouseSensitivity fun(): number # Gets current mouse sensitivity
+---@field getMousePosition fun(): number, number # Gets current mouse position
+--- Movement
 ---@field setMovementSpeed fun(speed: number) # Sets movement speed
 ---@field getMovementSpeed fun(): number # Gets current movement speed
+--- Camera Properties
 ---@field toggleCameraControls fun() # Toggles camera controls on/off
 ---@field toggleMovementLock fun() # Toggles movement lock
 ---@field toggleSmoothCamera fun() # Toggles smooth camera movement
+--- Camera
+---@field setCameraPosition fun(x: number, y: number, z: number) # Sets camera position
+---@field setCameraRotation fun(pitch: number, yaw: number) # Sets camera rotation
+---@field getCameraPosition fun(): number, number, number # Gets camera position
+---@field moveCameraForward fun(deltaTime: number) # Move camera forward
+---@field moveCameraBackward fun(deltaTime: number) # Move camera backward
+---@field moveCameraLeft fun(deltaTime: number) # Move camera left
+---@field moveCameraRight fun(deltaTime: number) # Move camera right
+---@field moveCameraUp fun(deltaTime: number) # Move camera up
+---@field moveCameraDown fun(deltaTime: number) # Move camera down
+---@field rotateCameraWithMouse fun(xOffset: number, yOffset: number, sensitivity: number) # Rotate camera with mouse
+--- ImGui Controls
 ---@field showTransformControls fun(show: boolean) # Shows/hides transform controls window
 ---@field showProfiler fun(show: boolean) # Shows/hides profiler window
 ---@field showRendererSettings fun(show: boolean) # Shows/hides renderer settings window
 ---@field showEventDebugger fun(show: boolean) # Shows/hides event debugger window
 ---@field showTerrainControls fun(show: boolean) # Shows/hides terrain controls window
 ---@field showFPSCounter fun(show: boolean) # Shows/hides FPS counter
+--- Scene Management
 ---@field createScene fun(name: string): boolean # Creates a new scene with the given name
 ---@field setActiveScene fun(name: string): boolean # Sets the active scene by name
 ---@field deleteScene fun(name: string): boolean # Deletes a scene by name
 ---@field getActiveSceneName fun(): string # Gets the name of the active scene
+--- Render System
+---@field setRenderType fun(type: string) # Sets the renderer (2D or 3D)
+---@field getRenderType fun(): string # Gets the renderer type (2D or 3D)
+---@field getObject fun(name: string) # Gets an object by name
+---@field is3D fun(): boolean # Checks if the current scene is 3D
+--- 2D Render System
+---@field renderer2DInitialize fun() # Creates a 2D renderer instance
+---@field renderer2DBeginScene fun() # Begins a scene
+---@field renderer2DEndScene fun() # Ends a scene
+---@field drawQuad fun(x: number, y: number, width: number, height: number, r: number, g: number, b: number, a: number) # Draw a single quad
+---@field drawTexturedQuad fun(x: number, y: number, width: number, height: number, texture, tiling_factor: number) # Draw a single quad with a texture
+---@field createCheckerTexture fun() # Create a checkered texture from quads
+--- 3D Render System
+---@field createCube fun(scene: string) # Creates a cube in the scene
 engine = {}
 
 -- Key code constants
@@ -246,3 +273,37 @@ function engine.deleteScene(name) end
 ---Gets the name of the active scene
 ---@return string name The name of the active scene (empty string if no active scene)
 function engine.getActiveSceneName() end
+
+--- Sets the renderer type (2D or 3D)
+--- @param type string 2D or 3D
+function setRenderType(type) end
+
+--- Gets the renderer type (2D or 3D)
+--- @return type string
+function getRenderType() end
+
+--- Starts a scene with camera as context
+function engine.renderer2d_begin_scene() end
+
+--- Ends the current scene
+function engine.renderer2d_end_scene() end
+
+--- Draws a single quad
+--- @param x number The x coordinate of the quad
+--- @param y number The y coordinate of the quad
+--- @param width number The width of the quad
+--- @param height number The height of the quad
+--- @param r number The red value of the quad
+--- @param g number The greem value of the quad
+--- @param b number The blue value of the quad
+--- @param a number The alpha value of the quad
+function engine.draw_quad(x, y, width, height, r, g, b, a) end
+
+--- Draws a single textured quad
+--- @param x number The x coordinate of the quad
+--- @param y number The y coordinate of the quad
+--- @param width number The width of the quad
+--- @param height number The height of the quad
+--- @param texture string The texture to use
+--- @param tiling_factor number The tiling_factor
+function engine.draw_textured_quad(x, y, width, height, texture, tiling_factor) end

sandbox/assets/scripts/init.lua

@@ -1,6 +1,4 @@
-engine.trace("Starting init.lua execution")
-
--- Create build directory structure first
+-- Create build directory structure
 local buildDir = "build/assets/scripts"
 local scriptDir = "sandbox/assets/scripts"
 
@@ -29,7 +27,7 @@ local function copyScript(name)
     end
 
     if not isPathSafe(name) then
-        engine.error(string.format("Invalid script name (potential path traversal): %s", name))
+        engine.warn(string.format("Invalid script name (potential path traversal): %s", name))
         return false
     end
 
@@ -38,7 +36,7 @@ local function copyScript(name)
 
     local source, sourceErr = io.open(sourcePath, "rb")
     if not source then
-        engine.error(string.format("Could not open source script ", sourcePath, ": ", sourceErr))
+        engine.warn(string.format("Could not open source script ", sourcePath, ": ", sourceErr))
         return false
     end
 
@@ -47,43 +45,42 @@ local function copyScript(name)
     local size = source:seek("end")
     source:seek("set")
     if size > MAX_FILE_SIZE then
-        engine.error(string.format("Script %s is too large (%d bytes > %d bytes limit)", 
+        engine.warn(string.format("Script %s is too large (%d bytes > %d bytes limit)",
                                  sourcePath, size, MAX_FILE_SIZE))
         closeFiles(source)
         return false
     end
 
     local content = source:read("*all")
     if not content then
-        engine.error(string.format("Failed to read from ", sourcePath))
+        engine.warn(string.format("Failed to read from ", sourcePath))
         closeFiles(source)
         return false
     end
 
     local dest, destErr = io.open(destPath, "wb")
     if not dest then
-        engine.error(string.format("Failed to create destination file", destPath, ": ", destErr))
+        engine.warn(string.format("Failed to create destination file", destPath, ": ", destErr))
         closeFiles(source)
         return false
     end
 
     local success = dest:write(content)
     if not success then
-        engine.error(string.format("Failed to write to ", destPath))
+        engine.warn(string.format("Failed to write to ", destPath))
         closeFiles(source, dest)
         return false
     end
 
     closeFiles(source, dest)
-    engine.trace(string.format("Successfully copied: ", name))
     return true
 end
 
 -- Only copy scripts, don't execute them
 local scripts = { "main.lua", "engine.lua" }
 for _, script in ipairs(scripts) do
     if not copyScript(script) then
-        engine.error("Failed to copy " .. script)
+        engine.warn("Failed to copy " .. script)
         return
     end
 end