Merge branch 'master' of ssh.marcbarbier.fr:Marc/gamejam-polytech

CMakeLists.txt

@@ -27,6 +27,6 @@ set(SRC
 # add the executable
 add_executable(FLOPPE_FION ${SRC})
 
-target_link_libraries(FLOPPE_FION SDL2 SDL_image pthread m)
+target_link_libraries(FLOPPE_FION SDL2 SDL_image SDL_ttf pthread m)
 
 set_property(TARGET FLOPPE_FION PROPERTY C_STANDARD 23)

src/text.c

@@ -0,0 +1,65 @@
+#include "text.h"
+#include <SDL2/SDL_log.h>
+
+#define FONT_CACHE_SIZE 100
+#define MAX_TEXT_SIZE 100
+
+typedef struct FontCacheObject {
+    char* file;
+    int size;
+    TTF_Font* font;
+} FontCacheObject_t;
+
+FontCacheObject_t fontCache[FONT_CACHE_SIZE];
+unsigned fontCacheSize = 0;
+
+void text_freeFontCache(void){
+    for(unsigned i = 0; i < fontCacheSize; ++i){
+        free(fontCache[i].file);
+        TTF_CloseFont(fontCache[i].font);
+    }
+}
+
+int text_renderText(RenderObject_t* renderObject, Position position, SDL_Color color, const char* fontFilename, int fontSize, char* format, ...){
+
+    TTF_Font* font = NULL;
+    for(unsigned i = 0; i < fontCacheSize; ++i){
+        if(strcmp(fontCache[i].file, fontFilename) && fontCache[i].size == fontSize){
+            font = fontCache[i].font;
+            break;
+        }
+    }
+    if(font == NULL) {
+        font = TTF_OpenFont(fontFilename, fontSize);
+        if(font == NULL) {
+            SDL_LogError(SDL_LOG_PRIORITY_ERROR, "TTF_OpenFont");
+            return -1;
+        }
+        FontCacheObject_t fontCacheObject;
+        fontCacheObject.file = (char*)malloc(strlen(fontFilename) + 1);
+        strcpy(fontCacheObject.file, fontFilename);
+        fontCacheObject.size = fontSize;
+        fontCacheObject.font = font;
+        fontCache[fontCacheSize] = fontCacheObject;
+        ++fontCacheSize;
+    }
+
+    char text[MAX_TEXT_SIZE];
+    va_list args;
+
+	memset(&text, '\0', sizeof(text));
+
+	va_start(args, format);
+	vsprintf(text, format, args);
+	va_end(args);
+
+    SDL_Surface* surface = TTF_RenderText_Blended(font, text, color);
+
+
+    renderObject->x = position.x;
+    renderObject->y = position.y;
+    renderObject->z = position.z;
+    renderObject->surface = surface;
+
+    return 0;
+}

src/text.h

@@ -0,0 +1,18 @@
+#ifndef __TEXT_H__
+#define __TEXT_H__
+
+#include <SDL/SDL_ttf.h>
+#include "renderer.h"
+
+typedef struct {
+    int x;
+    int y;
+    int z;
+} Position;
+
+
+int text_renderText(RenderObject_t* renderObject, Position position, SDL_Color color, const char* fontFilename, int fontSize, char* format, ...);
+
+void text_freeFontCache(void);
+
+#endif