1 files changed, 51 insertions, 0 deletions
diff --git a/src/stars.c b/src/stars.c
new file mode 100644
index 0000000..2b036e9
--- /dev/null
+++ b/src/stars.c
@@ -0,0 +1,51 @@
+#include "stars.h"
+#include "world.h"
+#include "game.h"
+#include "entity.h"
+
+void initStars(Stars * stars) {
+    int i;
+
+    for (i = 0; i < STAR_COUNT; ++i)
+        stars->starsUsed[i] = false;
+}
+
+Vector3 generateStar() {
+    SetRandomSeed(clock());
+
+    // Get direction.
+    Vector3 star = (Vector3){
+        GetRandomValue(1000, -1000),
+        GetRandomValue(1000, -1000),
+        GetRandomValue(1000, -1000)
+    };
+
+    star = Vector3Normalize(star);
+
+    // Move far away.
+    float distance = STAR_MAX_DISTANCE;
+    star = Vector3Scale(star, distance);
+
+    return star;
+}
+
+void drawStars(Game * game, Stars * stars) {
+    int i;
+
+    Entity * player = getEntityFromWorld(game->world, 0);
+
+    for (i = 0; i < STAR_COUNT; ++i) {
+        if (stars->starsUsed[i]) {
+            DrawSphereEx(stars->stars[i], 0.5 - (Vector3Distance(stars->stars[i], player->position) * 0.005), 4, 4, WHITE);
+
+            // Flag for reset if to close or far.
+            float distance = Vector3Distance(stars->stars[i], player->position);
+
+            if (distance < STAR_MIN_DISTANCE || distance > STAR_MAX_DISTANCE)
+                stars->starsUsed[i] = false;
+        } else { // Reset star.
+            stars->starsUsed[i] = true;
+            stars->stars[i] = Vector3Add(player->position, generateStar());
+        }
+    }
+}