diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc61735..c65ff60 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,7 +31,46 @@ set_property(CACHE ARCHEUS_STD_GRAPHICS_BACKEND PROPERTY STRINGS NONE SDL2 OPENG
 set(ARCHEUS_STD_FLAGS "")
 set(ARCHEUS_STD_LIBRARIES "")
 
+<<<<<<< HEAD
 # ~ ARCHEUS_SOURCES ~ #
+=======
+if(ARCHEUS_STD_DEBUG)
+    string(APPEND ARCHEUS_STD_FLAGS "-Wall -Werror -g -ggdb -DARC_DEBUG ")
+endif()
+
+if(ARCHEUS_STD_DEFAULT_CONFIG)
+    string(APPEND ARCHEUS_STD_FLAGS "-DARC_DEFAULT_CONFIG ")
+endif()
+
+if(ARCHEUS_STD_SDL)
+    if(NOT PNG AND WIN32 AND NOT MSVC)
+        set(PNG_LIBRARY "C:/Program Files(x86)/libpng")
+        set(PNG_PNG_INCLUDE_DIR "C:/Program Files(x86)/libpng/include")
+    endif()
+
+    find_package(SDL2 REQUIRED)
+    find_package(SDL2_image REQUIRED)
+    find_package(SDL2_ttf REQUIRED)
+    find_package(SDL2_mixer REQUIRED)
+
+    string(APPEND ARCHEUS_STD_FLAGS "-DARC_SDL ")
+endif()
+
+if(ARCHEUS_STD_GLFW)
+    string(APPEND ARCHEUS_STD_FLAGS "-DARC_GLFW ")
+endif()
+
+if(ARCHEUS_STD_GLEW)
+    string(APPEND ARCHEUS_STD_FLAGS "-DARC_GLEW ")
+endif()
+
+if(ARCHEUS_STD_OPENGL)
+    string(APPEND ARCHEUS_STD_FLAGS "-DARC_OPENGL")
+endif()
+
+set(CMAKE_C_FLAGS ${ARCHEUS_STD_FLAGS})
+
+>>>>>>> 5750185bd8a38ce2a450f47e3bd8d5315b455561
 set(ARCHEUS_STD_SOURCES
     src/std/config.c
     src/std/errno.c
@@ -45,6 +84,7 @@ set(ARCHEUS_STD_SOURCES
     src/math/circle.c
     src/math/config.c
     src/math/obround.c
+    src/math/point.c
     src/math/rectangle.c
     src/math/vector2.c
 
@@ -54,6 +94,7 @@ set(ARCHEUS_STD_SOURCES
     src/engine/state.c
 )
 
+<<<<<<< HEAD
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
     string(APPEND ARCHEUS_STD_FLAGS "-Wall -Werror -g -ggdb -DARC_DEBUG ")
 endif()
@@ -85,6 +126,27 @@ if(ARCHEUS_STD_GLEW)
 endif()
 
 set(CMAKE_C_FLAGS ${ARCHEUS_STD_FLAGS})
+=======
+set(ARCHEUS_STD_SDL_SOURCES
+    src/audio/sdl/audio.c
+    src/audio/sdl/config.c
+
+    src/input/sdl/keyboard.c
+    src/input/sdl/mouse.c
+
+    src/graphics/sdl/circle.c
+    src/graphics/sdl/config.c
+    src/graphics/sdl/line.c
+    src/graphics/sdl/obround.c
+    src/graphics/sdl/rectangle.c
+    src/graphics/sdl/renderer.c
+    src/graphics/sdl/sprite.c
+    src/graphics/sdl/spritesheet.c
+    src/graphics/sdl/text.c
+    src/graphics/sdl/view.c
+    src/graphics/sdl/window.c
+)
+>>>>>>> 5750185bd8a38ce2a450f47e3bd8d5315b455561
 
 set(ARCHEUS_STD_OPENGL_SOURCES
     src/graphics/opengl/config.c
@@ -119,9 +181,20 @@ target_include_directories(archeus_std
     PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
 )
 
+<<<<<<< HEAD
 target_link_libraries(archeus_std
     PUBLIC m
 )
+=======
+    target_link_libraries(archeus_std PUBLIC ${SDL2_LIBRARIES} SDL2_image::SDL2_image SDL2_ttf::SDL2_ttf SDL2_mixer::SDL2_mixer)
+endif()
+
+if(ARCHEUS_STD_OPENGL)
+    target_include_directories(archeus_std PRIVATE
+        PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+    )
+endif()
+>>>>>>> 5750185bd8a38ce2a450f47e3bd8d5315b455561
 
 install(TARGETS archeus_std EXPORT archeus_std_Exports
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
diff --git a/include/arc/audio/audio.h b/include/arc/audio/audio.h
new file mode 100644
index 0000000..e342783
--- /dev/null
+++ b/include/arc/audio/audio.h
@@ -0,0 +1,16 @@
+#ifndef ARC_AUDIO_H_
+#define ARC_AUDIO_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ARC_Audio ARC_Audio;
+    
+void ARC_Audio_Play(ARC_Audio *audio);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !ARC_AUDIO_H_
diff --git a/include/arc/audio/config.h b/include/arc/audio/config.h
new file mode 100644
index 0000000..2eb9750
--- /dev/null
+++ b/include/arc/audio/config.h
@@ -0,0 +1,22 @@
+#ifndef ARC_AUDIO_CONFIG_H_
+#define ARC_AUDIO_CONFIG_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include "arc/std/string.h"
+
+typedef struct ARC_Config ARC_Config;
+void ARC_AudioConfig_Init(ARC_Config *config);
+
+uint8_t ARC_Audio_Read(ARC_Config *config, ARC_String *string, void **value);
+
+void ARC_Audio_Delete(ARC_Config *config, ARC_String *string, void *value);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //ARC_AUDIO_CONFIG_H_
\ No newline at end of file
diff --git a/include/arc/audio/sdl/audio.h b/include/arc/audio/sdl/audio.h
new file mode 100644
index 0000000..92afa3e
--- /dev/null
+++ b/include/arc/audio/sdl/audio.h
@@ -0,0 +1,12 @@
+#ifndef ARC_SDL_AUDIO_H_
+#define ARC_SDL_AUDIO_H_
+
+#ifdef ARC_SDL
+#include <SDL2/SDL_mixer.h>
+
+typedef struct ARC_Audio {
+    Mix_Chunk *chunk;
+} ARC_Audio;
+    
+#endif // !ARC_SDL
+#endif // !ARC_SDL_AUDIO_H_
diff --git a/include/arc/graphics/circle.h b/include/arc/graphics/circle.h
index fd35323..11696f1 100644
--- a/include/arc/graphics/circle.h
+++ b/include/arc/graphics/circle.h
@@ -12,7 +12,7 @@ extern "C" {
 
 void ARC_Circle_Render(ARC_Circle *circle, ARC_Renderer *renderer, ARC_Color *color);
 
-// void ARC_Rect_RenderFill(ARC_Rect *rect, ARC_Renderer *renderer, ARC_Color *color);
+void ARC_Circle_RenderFill(ARC_Circle *circle, ARC_Renderer *renderer, ARC_Color *color);
 
 #ifdef __cplusplus
 }
diff --git a/include/arc/graphics/sdl/sprite.h b/include/arc/graphics/sdl/sprite.h
index eb0adb9..6e7cb59 100644
--- a/include/arc/graphics/sdl/sprite.h
+++ b/include/arc/graphics/sdl/sprite.h
@@ -9,6 +9,8 @@ struct ARC_Sprite {
     ARC_Spritesheet *spritesheet;
     ARC_Array       *frames;
     uint32_t        *frameIndex;
+    //TODO: temp
+    uint8_t          opacity;
 };
 
 #endif // !ARC_SDL
diff --git a/include/arc/graphics/sprite.h b/include/arc/graphics/sprite.h
index e339886..fe71bf9 100644
--- a/include/arc/graphics/sprite.h
+++ b/include/arc/graphics/sprite.h
@@ -42,6 +42,18 @@ void ARC_Sprite_Destroy(ARC_Sprite *sprite);
  */
 void ARC_Sprite_Copy(ARC_Sprite **newSprite, ARC_Sprite *oldSprite);
 
+//TODO: temp
+/**
+ * @brief sets ARC_Sprite's opacity
+ *
+ * @param sprite  ARC_Sprite that is changing opacity
+ * @param opacity new opacity for ARC_Sprite
+ *
+ * @note this is temp because opacity probably should be a value
+ *       bigger than 255
+*/
+void ARC_Sprite_SetOpacity(ARC_Sprite *sprite, uint8_t opacity);
+
 /**
  * @brief renders ARC_Sprite type
  * 
@@ -94,6 +106,15 @@ void ARC_Sprite_SetFrameIndex(ARC_Sprite *sprite, uint32_t index);
  */
 void ARC_Sprite_IterateFrame(ARC_Sprite *sprite);
 
+/**
+ * @brief gets ARC_Sprite's current frame
+ * 
+ * @param sprite ARC_Sprite to get frame from
+ *
+ * @return index ARC_Sprite's current frame index
+ */
+uint32_t ARC_Sprite_GetFrameIndex(ARC_Sprite *sprite);
+
 /**
  * @brief returns the current bounds based on the ARC_Sprite's frames
  * 
diff --git a/include/arc/graphics/view.h b/include/arc/graphics/view.h
new file mode 100644
index 0000000..594a30a
--- /dev/null
+++ b/include/arc/graphics/view.h
@@ -0,0 +1,59 @@
+#ifndef ARC_GRAPHICS_VIEW_H_
+#define ARC_GRAPHICS_VIEW_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "arc/graphics/renderer.h"
+#include "arc/math/rectangle.h"
+
+typedef struct ARC_View {
+    ARC_Renderer *renderer;
+    ARC_Rect bounds;
+} ARC_View;
+
+/**
+ * @brief a function for ARC_View where contents of the function will be rendered within a view
+ *
+ * @param data data to be used within ARC_View_RenderFn
+ */
+typedef void (* ARC_View_RenderFn)(void *data);
+
+/**
+ * @brief creates ARC_View type
+ *
+ * @param view     ARC_View to initialize
+ * @param renderer ARC_Renderer the view will render to
+ * @param bounds   ARC_Rect bounds of the view within the renderer 
+ */
+void ARC_View_Create(ARC_View **view, ARC_Renderer *renderer, ARC_Rect bounds);
+
+/**
+ * @brief destroys ARC_View type
+ */
+void ARC_View_Destroy(ARC_View *view);
+
+/**
+ * @brief renders callbacks contents within an ARC_View
+ * 
+ * @param view     ARC_View to be renedered to
+ * @param renderFn function which contents will render to given ARC_View
+ * @param data     data to be used in renderFn
+ */
+void ARC_View_Render(ARC_View *view, ARC_View_RenderFn renderFn, void *data);
+
+/**
+ * @brief gets bounds from ARC_View type
+ *
+ * @param view ARC_View to get bounds from
+ *
+ * @return bounds of the view
+ */
+ARC_Rect ARC_View_GetBounds(ARC_View *view);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !ARC_GRAPHICS_VIEW_H_
diff --git a/include/arc/input/keyboard.h b/include/arc/input/keyboard.h
index 849558c..10e7e5c 100644
--- a/include/arc/input/keyboard.h
+++ b/include/arc/input/keyboard.h
@@ -64,6 +64,7 @@ typedef enum ARC_KeyboardKey {
 
     ARC_KEY_SPACE,
     ARC_KEY_ESC,
+    ARC_KEY_ENTER,
 } ARC_Keyboard_Key;
 
 ARC_KeyboardState ARC_Keyboard_GetState(ARC_Keyboard *keyboard, enum ARC_KeyboardKey key);
diff --git a/include/arc/math/point.h b/include/arc/math/point.h
index addf55d..953c08f 100644
--- a/include/arc/math/point.h
+++ b/include/arc/math/point.h
@@ -22,6 +22,8 @@ typedef struct ARC_FPoint {
     float y;
 } ARC_FPoint;
 
+ARC_FPoint ARC_FPoint_Lerp(ARC_FPoint *start, ARC_FPoint *end, float t);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/audio/sdl/audio.c b/src/audio/sdl/audio.c
new file mode 100644
index 0000000..8709787
--- /dev/null
+++ b/src/audio/sdl/audio.c
@@ -0,0 +1,7 @@
+#include "arc/audio/audio.h"
+#include "arc/audio/sdl/audio.h"
+#include <SDL2/SDL_mixer.h>
+
+void ARC_Audio_Play(ARC_Audio *audio){
+    Mix_PlayChannel(-1, audio->chunk, 0);
+}
\ No newline at end of file
diff --git a/src/audio/sdl/config.c b/src/audio/sdl/config.c
new file mode 100644
index 0000000..141b23d
--- /dev/null
+++ b/src/audio/sdl/config.c
@@ -0,0 +1,43 @@
+#include "arc/audio/config.h"
+#include "arc/audio/sdl/audio.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "arc/std/config.h"
+#include "arc/std/errno.h"
+#include "arc/audio/audio.h"
+
+// #define ARC_DEFAULT_CONFIG
+#include "arc/std/defaults/config.h"
+
+void ARC_AudioConfig_Init(ARC_Config *config){
+    ARC_Config_AddKeyCString(config, (char *)"ARC_Audio", 9, ARC_Audio_Read, ARC_Audio_Delete);
+}
+
+uint8_t ARC_Audio_Read(ARC_Config *config, ARC_String *string, void **value){
+    ARC_Config_Get(config, string, value);
+    if(*value){
+        return 1;
+    }
+
+    if(string->data[0] != '"' || string->data[string->length - 1] != '"'){
+        ARC_DEBUG_LOG(arc_errno, "in ARC_Point_Read(config, string, value); no matching quotes: %s", string->data);
+        arc_errno = ARC_ERRNO_DATA;
+        return 0;
+    }
+
+    ARC_Audio *audio = (ARC_Audio *)malloc(sizeof(ARC_Audio));
+
+    ARC_String *path;
+    ARC_String_CopySubstring(&path, string, 1, string->length - 2);
+    audio->chunk = Mix_LoadWAV(path->data);
+
+    //TODO: get error message if not loaded
+
+    *value = (void *)audio;
+    return 0;
+}
+
+void ARC_Audio_Delete(ARC_Config* config, ARC_String *string, void *value){
+    Mix_FreeChunk(((ARC_Audio *)value)->chunk);
+    free((ARC_Audio *)value);
+}
\ No newline at end of file
diff --git a/src/engine/engine.c b/src/engine/engine.c
index 2452ce8..558f07c 100644
--- a/src/engine/engine.c
+++ b/src/engine/engine.c
@@ -20,8 +20,8 @@
 #include "arc/input/sdl/mouse.h"
 #include "arc/input/sdl/keyboard.h"
 #include <SDL.h>
-#include <SDL_video.h>
 #include <SDL2/SDL_ttf.h>
+#include <SDL2/SDL_mixer.h>
 #elif ARC_OPENGL
 #include "arc/graphics/opengl/window.h"
 #include "arc/graphics/opengl/renderer.h"
@@ -48,6 +48,8 @@ void ARC_EngineData_Create(ARC_EngineData **data, ARC_Handler_CleanDataFn cleanf
 //TEMP
 #ifdef ARC_SDL
     TTF_Init();
+    Mix_Init(0);
+    Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, 2, 1024);
 #endif
 
 #ifdef ARC_SDL
@@ -90,6 +92,8 @@ void ARC_EngineData_Create(ARC_EngineData **data, ARC_Handler_CleanDataFn cleanf
 void ARC_EngineData_Destroy(ARC_EngineData *data){
 #ifdef ARC_SDL
     free(data->mouse->event);
+    TTF_Quit();
+    Mix_Quit();
 #endif // ARC_SDL
 
     ARC_Mouse_Destroy(data->mouse);
@@ -105,7 +109,6 @@ void ARC_Engine_Run(ARC_EngineData *data){
     }
 
 #ifdef ARC_SDL
-    SDL_SetRenderDrawBlendMode((SDL_Renderer *)data->renderer, SDL_BLENDMODE_BLEND);
 
     SDL_Event *event = data->mouse->event;
     double lastTime = 0, currentTime;
diff --git a/src/graphics/sdl/circle.c b/src/graphics/sdl/circle.c
index cf53a70..2472404 100644
--- a/src/graphics/sdl/circle.c
+++ b/src/graphics/sdl/circle.c
@@ -40,4 +40,13 @@ void ARC_Circle_Render(ARC_Circle *circle, ARC_Renderer *renderer, ARC_Color *co
     }
 }
 
+//TODO: very temp
+void ARC_Circle_RenderFill(ARC_Circle *circle, ARC_Renderer *renderer, ARC_Color *color){
+    ARC_Circle temp = *circle;
+
+    for(; temp.r; temp.r--){
+        ARC_Circle_Render(&temp, renderer, color);
+    }
+}
+
 #endif // ARC_SDL
\ No newline at end of file
diff --git a/src/graphics/sdl/config.c b/src/graphics/sdl/config.c
index 22c8f0f..b92c5e7 100644
--- a/src/graphics/sdl/config.c
+++ b/src/graphics/sdl/config.c
@@ -53,7 +53,10 @@ int32_t ARC_SDL_Texture_Load(const char *path, SDL_Texture **texture){
         return 1; // GE_SDL_ERRNO_
     }
 
+    SDL_BlendMode tempMode;
+    SDL_GetSurfaceBlendMode(surface, &tempMode);
     *texture = SDL_CreateTextureFromSurface(global_renderer, surface);
+    SDL_GetTextureBlendMode(*texture, &tempMode);
 
     SDL_FreeSurface(surface);
     IMG_Quit();
@@ -213,12 +216,7 @@ uint8_t ARC_Sprite_Read(ARC_Config* config, ARC_String *string, void **value){
         }
     }
     //sprite
-    *value = malloc(sizeof(ARC_Sprite));
-    ((ARC_Sprite *) *value)->frameIndex = malloc(sizeof(uint32_t));
-
-     ((ARC_Sprite *) *value)->spritesheet = spritesheet;
-     ((ARC_Sprite *) *value)->frames      = frames;
-    *((ARC_Sprite *) *value)->frameIndex  = 0;
+    ARC_Sprite_Create((ARC_Sprite **)value, spritesheet, frames);
 
     return 0;
 }
diff --git a/src/graphics/sdl/renderer.c b/src/graphics/sdl/renderer.c
index cfb8de6..9c065c6 100644
--- a/src/graphics/sdl/renderer.c
+++ b/src/graphics/sdl/renderer.c
@@ -21,6 +21,8 @@ void ARC_Renderer_Create(ARC_Renderer **renderer, ARC_RenderInfo *info){
         ARC_DEBUG_LOG(arc_errno, "SDL_CreateRenderer(%p, %d, %u);", info->window, info->index, info->flags);
         free(renderer);
     }
+
+    SDL_SetRenderDrawBlendMode((SDL_Renderer *)*renderer, SDL_BLENDMODE_BLEND);
 }
 
 void ARC_Renderer_Destroy(ARC_Renderer *renderer){
diff --git a/src/graphics/sdl/sprite.c b/src/graphics/sdl/sprite.c
index 8fa6d4f..ace0d0f 100644
--- a/src/graphics/sdl/sprite.c
+++ b/src/graphics/sdl/sprite.c
@@ -14,6 +14,7 @@ void ARC_Sprite_Create(ARC_Sprite **sprite, ARC_Spritesheet *spritesheet, ARC_Ar
     (*sprite)->frames = frames;
     (*sprite)->frameIndex = (uint32_t *)malloc(sizeof(uint32_t));
     *(*sprite)->frameIndex = 0;
+    (*sprite)->opacity = 255;
 }
 
 void ARC_Sprite_Destroy(ARC_Sprite *sprite){
@@ -28,7 +29,13 @@ void ARC_Sprite_Copy(ARC_Sprite **newSprite, ARC_Sprite *oldSprite){
     *(*newSprite)->frameIndex = *oldSprite->frameIndex;
 }
 
+void ARC_Sprite_SetOpacity(ARC_Sprite *sprite, uint8_t opacity){
+    sprite->opacity = opacity;
+}
+
 void ARC_Sprite_Render(ARC_Sprite *sprite, ARC_Renderer *renderer, ARC_Rect *renderBounds){
+    //TODO: note, this is set here so not all entities in the sheet get opacity set
+    SDL_SetTextureAlphaMod((SDL_Texture *)sprite->spritesheet->texture, sprite->opacity); 
     SDL_RenderCopy((SDL_Renderer *)renderer, sprite->spritesheet->texture, (SDL_Rect *)sprite->frames->data + *sprite->frameIndex, (SDL_Rect *)renderBounds);
 }
 
@@ -42,10 +49,14 @@ void ARC_Sprite_RenderFlip(ARC_Sprite *sprite, ARC_Renderer *renderer, ARC_Rect
         flip |= SDL_FLIP_VERTICAL;
     }
 
+    //TODO: note, this is set here so not all entities in the sheet get opacity set
+    SDL_SetTextureAlphaMod((SDL_Texture *)sprite->spritesheet->texture, sprite->opacity); 
     SDL_RenderCopyEx((SDL_Renderer *)renderer, sprite->spritesheet->texture, (SDL_Rect *)sprite->frames->data + *sprite->frameIndex, (SDL_Rect *)renderBounds, 0.0, NULL, flip);
 }
 
 void ARC_Sprite_RenderRotated(ARC_Sprite *sprite, ARC_Renderer *renderer, ARC_Rect *renderBounds, ARC_Point *center, double angle){
+    //TODO: note, this is set here so not all entities in the sheet get opacity set
+    SDL_SetTextureAlphaMod((SDL_Texture *)sprite->spritesheet->texture, sprite->opacity); 
     SDL_RenderCopyEx((SDL_Renderer *)renderer, sprite->spritesheet->texture, (SDL_Rect *)sprite->frames->data + *sprite->frameIndex, (SDL_Rect *)renderBounds, angle, (SDL_Point *)center, SDL_FLIP_NONE);
 }
 
@@ -66,6 +77,10 @@ void ARC_Sprite_IterateFrame(ARC_Sprite *sprite){
     }
 }
 
+uint32_t ARC_Sprite_GetFrameIndex(ARC_Sprite *sprite){
+    return *sprite->frameIndex;
+}
+
 ARC_Rect *ARC_Sprite_GetBounds(ARC_Sprite *sprite){
     return (ARC_Rect *)sprite->frames->data + *sprite->frameIndex;
 }
diff --git a/src/graphics/sdl/view.c b/src/graphics/sdl/view.c
new file mode 100644
index 0000000..ffa9483
--- /dev/null
+++ b/src/graphics/sdl/view.c
@@ -0,0 +1,35 @@
+#include "arc/graphics/view.h"
+
+#include "arc/std/errno.h"
+#include <SDL.h>
+#include <stdlib.h>
+
+void ARC_View_Create(ARC_View **view, ARC_Renderer *renderer, ARC_Rect bounds){
+    *view = (ARC_View *)malloc(sizeof(ARC_View));
+    (*view)->renderer = renderer;
+    (*view)->bounds = bounds;
+}
+
+void ARC_View_Destroy(ARC_View *view){
+    free(view);
+}
+
+void ARC_View_Render(ARC_View *view, ARC_View_RenderFn renderFn, void *data){
+    int err = SDL_RenderSetViewport((SDL_Renderer *)view->renderer, (const SDL_Rect *)&(view->bounds));
+    if(err){
+        ARC_DEBUG_LOG(ARC_ERRNO_DATA, "in src/graphics/sdl/view.c ARC_View_Render(view, renderFn), SDL_RenderSetViewport(...) returned: %d", err);
+        return;
+    }
+
+    renderFn(data);
+
+    err = SDL_RenderSetViewport((SDL_Renderer *)view->renderer, NULL);
+    if(err){
+        ARC_DEBUG_LOG(ARC_ERRNO_DATA, "in src/graphics/sdl/view.c ARC_View_Render(view, NULL), SDL_RenderSetViewport(...) returned: %d", err);
+        return;
+    }
+}
+
+ARC_Rect ARC_View_GetBounds(ARC_View *view){
+    return view->bounds;
+}
diff --git a/src/graphics/sdl/window.c b/src/graphics/sdl/window.c
index 73b4785..7921a96 100644
--- a/src/graphics/sdl/window.c
+++ b/src/graphics/sdl/window.c
@@ -12,7 +12,7 @@ void ARC_Window_Create(ARC_Window **window, ARC_WindowInfo *info){
         return;
     }
 
-    if(SDL_Init(SDL_INIT_VIDEO) < 0){
+    if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0){
         arc_errno = ARC_ERRNO_INIT;
         printf("Error: initializing SDL\nSDL Error: %s\n", SDL_GetError());
         return;
diff --git a/src/input/sdl/keyboard.c b/src/input/sdl/keyboard.c
index c120335..a827536 100644
--- a/src/input/sdl/keyboard.c
+++ b/src/input/sdl/keyboard.c
@@ -92,6 +92,7 @@ ARC_KeyboardState ARC_Keyboard_GetState(ARC_Keyboard *keyboard, enum ARC_Keyboar
 
         case ARC_KEY_SPACE: return keyboard->keys[SDLK_SPACE ];
         case ARC_KEY_ESC:   return keyboard->keys[SDLK_ESCAPE];
+        case ARC_KEY_ENTER: return keyboard->keys[SDLK_RETURN];
 
         default: return ARC_KEY_NONE;
     }
diff --git a/src/math/point.c b/src/math/point.c
new file mode 100644
index 0000000..7e1767c
--- /dev/null
+++ b/src/math/point.c
@@ -0,0 +1,8 @@
+#include "arc/math/point.h"
+
+ARC_FPoint ARC_FPoint_Lerp(ARC_FPoint *start, ARC_FPoint *end, float t){
+    return (ARC_FPoint){
+        (1.0f - t) * start->x + t * end->x,
+        (1.0f - t) * start->y + t * end->y
+    };
+}
\ No newline at end of file