From 7ad3230d2d9b2ba1e0ea5e38433f7b7ac152d638 Mon Sep 17 00:00:00 2001
From: xtreme8000 <xtreme8000@googlemail.com>
Date: Thu, 4 Apr 2019 11:33:06 +0200
Subject: [PATCH] add invert-y support

Close #71
---
 src/config.c | 11 +++++++++++
 src/config.h |  1 +
 src/hud.c    |  3 +++
 src/main.c   |  1 +
 4 files changed, 16 insertions(+)

diff --git a/src/config.c b/src/config.c
index d11088c..300546f 100644
--- a/src/config.c
+++ b/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,
diff --git a/src/config.h b/src/config.h
index 3dd10a6..42a6d01 100644
--- a/src/config.h
+++ b/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;
diff --git a/src/hud.c b/src/hud.c
index 06a0492..68d5cbd 100644
--- a/src/hud.c
+++ b/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;
 
diff --git a/src/main.c b/src/main.c
index 224e5e2..a923282 100644
--- a/src/main.c
+++ b/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"))