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CMakeLists.txt

@@ -23,6 +23,7 @@ set(SRC
 	src/main.c
 	src/renderer.c
 	src/text.c
+	src/menu.c
 )
 
 # add the executable

src/main.c

@@ -1,5 +1,6 @@
 #include "renderer.h"
 #include "text.h"
+#include "menu.h"
 #include <SDL2/SDL_mixer.h>
 #include <SDL2/SDL_image.h>
 #include <SDL2/SDL_surface.h>
@@ -15,12 +16,12 @@ int main(void) {
 	}
 
 	Mix_Music *music = Mix_LoadMUS("./assets/music/pet.mp3");
-    if(Mix_PlayMusic(music, -1) != 0){
+    // if(Mix_PlayMusic(music, -1) != 0){
-        printf("Music sound could not be played!\n"
+    //     printf("Music sound could not be played!\n"
-               "SDL_Error: %s\n", Mix_GetError());
+    //            "SDL_Error: %s\n", Mix_GetError());
-        Mix_FreeMusic(music);
+    //     Mix_FreeMusic(music);
-        return 0;
+    //     return 0;
-    }
+    // }
 
 	RenderObject_t text;
 	SDL_Color white = {255, 255, 255, 255};
@@ -30,23 +31,25 @@ int main(void) {
 		exit(1);
 	}
 
-	SDL_Surface* img = IMG_Load("./assets/img/pp.png");
+	// SDL_Surface* img = IMG_Load("./assets/img/pp.png");
-
-	RenderObject_t duck = {
-		0.2,
-		0.2,
-		0,
-		0.50,
-		0.50,
-		0,
-		img
-	};
 
+	// RenderObject_t duck = {
+	// 	0.2,
+	// 	0.2,
+	// 	0,
+	// 	0.50,
+	// 	0.50,
+	// 	0,
+	// 	img
+	// };
+	MonitorSize_t monitorSize = renderer_getMonitorSize();
+	menu_render(monitorSize.width, monitorSize.height);
 	renderer_renderObject(text);
-	renderer_renderObject(duck);
+	// renderer_renderObject(duck);
 	while(1);
 	Mix_FreeMusic(music);
 	Mix_CloseAudio();
+	menu_remove();
 
 	text_freeFontCache();
 }

src/menu.c

@@ -0,0 +1,43 @@
+#include "menu.h"
+#include <SDL2/SDL_image.h>
+
+static RenderId_t menuObjects[10];
+static unsigned menuObjectsSize = 0;
+
+int menu_render(int windowWidth, int windowHeight){
+    SDL_Surface* buttonImageSurface = IMG_Load("./assets/img/start.png");
+    if(buttonImageSurface == NULL){
+        printf("cannot load");
+        return -1;
+    }
+    float buttonScale = 0.3f;
+    // float buttonX = ((float)windowWidth - (float)buttonImageSurface->w) / (2.f * (float)buttonImageSurface->w);
+    // float buttonY = ((float)windowHeight - (float)buttonImageSurface->h) / (2.f * (float)buttonImageSurface->h);
+    float buttonX = 0.5f - buttonScale * (float)buttonImageSurface->w / (2.f * (float)windowWidth);
+    float buttonY = 0.5f - buttonScale * (float)buttonImageSurface->h / (2.f * (float)windowHeight);
+    printf("buttonImageSurface->w: %d\n", buttonImageSurface->w);
+    printf("buttonImageSurface->h: %d\n", buttonImageSurface->h);
+    printf("windowWidth: %d\n", windowWidth);
+    printf("buttonX: %f\n", buttonX);
+
+    RenderObject_t buttonImage = {
+		buttonX,
+		buttonY,
+		0,
+		buttonScale,
+		buttonScale,
+		0,
+		buttonImageSurface
+	};
+    menuObjects[menuObjectsSize] = renderer_renderObject(buttonImage);
+    ++menuObjectsSize;
+    return 0;
+}
+
+void menu_remove(void){
+    for(unsigned i = 0; i < menuObjectsSize; ++i){
+        renderer_removeObject(menuObjects[i]);
+    }
+    menuObjectsSize = 0;
+}
+

src/menu.h

@@ -0,0 +1,10 @@
+#ifndef __MENU_H__
+#define __MENU_H__
+
+#include "renderer.h"
+
+int menu_render(int windowWidth, int windowHeight);
+
+void menu_remove(void);
+
+#endif

src/text.c

@@ -13,14 +13,15 @@ typedef struct FontCacheObject {
     TTF_Font* font;
 } FontCacheObject_t;
 
-FontCacheObject_t fontCache[FONT_CACHE_SIZE];
+static FontCacheObject_t fontCache[FONT_CACHE_SIZE];
-unsigned fontCacheSize = 0;
+static unsigned fontCacheSize = 0;
 
 void text_freeFontCache(void){
     for(unsigned i = 0; i < fontCacheSize; ++i){
         free(fontCache[i].file);
         TTF_CloseFont(fontCache[i].font);
     }
+    fontCacheSize = 0;
 }
 
 int text_renderText(RenderObject_t* renderObject, float x, float y, int z, float scale, SDL_Color color, const char* fontFilename, int fontSize, char* format, ...){