add invert-y support

Close #71

src/config.c

@@ -63,6 +63,7 @@ void config_save() {
 	config_seti("show_fps",settings.show_fps);
 	config_seti("voxlap_models",settings.voxlap_models);
 	config_seti("force_displaylist",settings.force_displaylist);
+	config_seti("inverty",settings.invert_y);
 
 	for(int k=0;k<list_size(&config_keys);k++) {
 		struct config_key_pair* e = list_get(&config_keys,k);
@@ -134,6 +135,9 @@ static int config_read_key(void* user, const char* section, const char* name, co
 		if(!strcmp(name,"force_displaylist")) {
 			settings.force_displaylist = atoi(value);
 		}
+		if(!strcmp(name,"inverty")) {
+			settings.invert_y = atoi(value);
+		}
     }
     if(!strcmp(section,"controls")) {
         for(int k=0;k<list_size(&config_keys);k++) {
@@ -389,6 +393,13 @@ void config_reload() {
 		.name="Show fps",
 		.help="show your current fps and ping"
 	});
+	list_add(&config_settings,&(struct config_setting){
+		.value=&settings_tmp.invert_y,
+		.type=CONFIG_TYPE_INT,
+		.max=1,
+		.name="Invert y",
+		.help="Invert vertical mouse movement"
+	});
 	list_add(&config_settings,&(struct config_setting){
 		.value=&settings_tmp.show_news,
 		.type=CONFIG_TYPE_INT,

src/config.h

@@ -43,6 +43,7 @@ extern struct RENDER_OPTIONS {
 	int volume;
 	int voxlap_models;
 	int force_displaylist;
+	int invert_y;
 } settings, settings_tmp;
 
 extern struct list config_keys;

src/hud.c

@@ -933,6 +933,9 @@ static void hud_ingame_mouselocation(double x, double y) {
 		s = 0.5F;
 	}
 
+	if(settings.invert_y)
+		dy *= -1.0F;
+
 	camera_rot_x -= dx*settings.mouse_sensitivity/5.0F*MOUSE_SENSITIVITY*s;
 	camera_rot_y += dy*settings.mouse_sensitivity/5.0F*MOUSE_SENSITIVITY*s;
 

src/main.c

@@ -580,6 +580,7 @@ int main(int argc, char** argv) {
 	settings.volume = 10;
 	settings.voxlap_models = 0;
 	settings.force_displaylist = 0;
+	settings.invert_y = 0;
 	strcpy(settings.name,"DEV_CLIENT");
 
 	if(!file_dir_exists("logs"))