From 9286fddd3c216acbbc835741bce28afe75110892 Mon Sep 17 00:00:00 2001
From: Linus_Probert <linus.probert@netset.se>
Date: Fri, 23 Feb 2018 11:10:50 +0100
Subject: [PATCH] Adds: Flashing healthbar when low on health

---
 src/gui.c    | 11 ++++++++---
 src/sprite.c |  3 ++-
 src/sprite.h |  1 +
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/gui.c b/src/gui.c
index ea87fd2..892792a 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -189,7 +189,7 @@ gui_create(SDL_Renderer *renderer)
 static void
 set_max_health(Gui *gui, int max, SDL_Renderer *renderer)
 {
-	Texture *texture;
+	Texture *texture0, *texture1;
 	int i;
 
 	assert(max % 3 == 0);
@@ -201,14 +201,17 @@ set_max_health(Gui *gui, int max, SDL_Renderer *renderer)
 	while (gui->health != NULL)
 		sprite_destroy(linkedlist_pop(&gui->health));
 
-	texture = add_texture(gui, "GUI/GUI0.png", renderer);
+	texture0 = add_texture(gui, "GUI/GUI0.png", renderer);
+	texture1 = add_texture(gui, "GUI/GUI1.png", renderer);
 
 	for (i = 0; i < max/3; ++i) {
 		Sprite *sprite = sprite_create();
 		sprite->fixed = true;
+		sprite->animate = false;
 		sprite->clip = (SDL_Rect) { 0, 16, 16, 16 };
 		sprite->pos = (Position) { 16 + (i%8)*16, 16 + ((i-(i%8))/8)*16 };
-		sprite_set_texture(sprite, texture, 0);
+		sprite_set_texture(sprite, texture0, 0);
+		sprite_set_texture(sprite, texture1, 1);
 		linkedlist_append(&gui->health, sprite);
 	}
 }
@@ -234,6 +237,8 @@ set_current_health(Gui *gui, int current)
 			sprite->clip.x = 64;
 		}
 
+		sprite->animate = current < 9;
+
 		++count;
 		item = item->next;
 	}
diff --git a/src/sprite.c b/src/sprite.c
index 21a09e1..711eedf 100644
--- a/src/sprite.c
+++ b/src/sprite.c
@@ -32,6 +32,7 @@ sprite_create_default(void)
 	s->renderTimer = timer_create();
 	s->texture_index = 0;
 	s->fixed = false;
+	s->animate = true;
 	s->hidden = false;
 
 	return s;
@@ -93,7 +94,7 @@ void sprite_render(Sprite *s, Camera *cam)
 	if (s->hidden)
 		return;
 
-	if (s->textures[1]) {
+	if (s->textures[1] && s->animate) {
 		if (!timer_started(s->renderTimer))
 			timer_start(s->renderTimer);
 
diff --git a/src/sprite.h b/src/sprite.h
index 38e0ccc..2c95656 100644
--- a/src/sprite.h
+++ b/src/sprite.h
@@ -35,6 +35,7 @@ typedef struct Sprite_t {
 	Timer *renderTimer;
 	unsigned int texture_index;
 	bool fixed;
+	bool animate;
 	bool hidden;
 } Sprite;