From a9798702ddb7e4bcb7b9154db08579ed07faadfb Mon Sep 17 00:00:00 2001
From: Jordan Halase <jordan@halase.me>
Date: Fri, 27 Sep 2019 17:05:05 -0500
Subject: Do not export functions in single compilation unit

---
 main.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/main.c b/main.c
index cb3ba73..a80e1fb 100644
--- a/main.c
+++ b/main.c
@@ -32,7 +32,7 @@
 #define PIOVER2		1.570796327f
 #define INVSQRT2	0.707106781f
 
-void fatal_sdl()
+static void fatal_sdl()
 {
 	fprintf(stderr, "%s\n", SDL_GetError());
 	SDL_ShowSimpleMessageBox(
@@ -83,7 +83,7 @@ struct BulletPool {
 
 struct BulletPool player_bullets;
 
-bool bullets_shoot(struct BulletPool *pool, const vec2 position, const vec2 velocity)
+static bool bullets_shoot(struct BulletPool *pool, const vec2 position, const vec2 velocity)
 {
 	if (pool->used >= MAX_BULLETS) {
 		return false;
@@ -117,7 +117,7 @@ static bool is_point_in_screen(const vec2 position)
 	return true;
 }
 
-void bullets_integrate(struct BulletPool *pool)
+static void bullets_integrate(struct BulletPool *pool)
 {
 	for (uint32_t i = 0; i < MAX_BULLETS; ++i) {
 		if (!viszero(pool->bullets[i].velocity)) {
@@ -131,7 +131,7 @@ void bullets_integrate(struct BulletPool *pool)
 	}
 }
 
-void bullets_draw(const struct BulletPool *pool, SDL_Renderer *ren)
+static void bullets_draw(const struct BulletPool *pool, SDL_Renderer *ren)
 {
 	uint32_t num_bullets = 0;
 	SDL_Point points[MAX_BULLETS];
@@ -171,7 +171,7 @@ struct Player {
 
 #define PLAYER_RENDER_RADIUS	INVSQRT2
 
-void player_create(struct Player *player, const vec2 position, const float update_rate)
+static void player_create(struct Player *player, const vec2 position, const float update_rate)
 {
 	*player = (struct Player){
 		.body = {
@@ -187,7 +187,7 @@ void player_create(struct Player *player, const vec2 position, const float updat
 	};
 }
 
-void player_input(struct Player *player, const Uint8 *keys)
+static void player_input(struct Player *player, const Uint8 *keys)
 {
 	struct KinematicBody *body = &player->body;
 	bool update_direction = false;
@@ -226,7 +226,7 @@ void player_input(struct Player *player, const Uint8 *keys)
 	}
 }
 
-void kinematic_integrate(struct KinematicBody *body)
+static void kinematic_integrate(struct KinematicBody *body)
 {
 	body->angle += body->angular_velocity;
 	while (body->angle < 0.0f) body->angle += TWOPI;
@@ -246,7 +246,7 @@ void kinematic_integrate(struct KinematicBody *body)
 	body->position = vadd(body->position, body->velocity);
 }
 
-void kinematic_wrap(struct KinematicBody *body)
+static void kinematic_wrap(struct KinematicBody *body)
 {
 	while (body->position.x > SCREEN_WIDTH_F + body->collision_radius) {
 		body->position.x -= SCREEN_WIDTH_F;
-- 
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