From d4b40dcf7589bef2bbd0b6b940ee992da9db2343 Mon Sep 17 00:00:00 2001
From: nathansmithsmith <thenathansmithsmith@gmail.com>
Date: Fri, 21 Jul 2023 00:12:00 -0600
Subject: Working collision system

---
 src/bullets.c | 75 ++++++++---------------------------------------------------
 1 file changed, 10 insertions(+), 65 deletions(-)

(limited to 'src/bullets.c')

diff --git a/src/bullets.c b/src/bullets.c
index ea913c7..1619111 100644
--- a/src/bullets.c
+++ b/src/bullets.c
@@ -30,71 +30,16 @@ BulletHitInfo handleBulletHit(Entity * entity, Bullet bullet) {
 }
 
 BulletHitInfo shootBullet(World * world, Bullet bullet) {
-	int i, j;
-	RayCollision collision;
-	Entity * currentEntity;
-	Ray ray;
+	EntityId hitId = traceRayToEntityInWorld(world, bullet.ray, bullet.fromFingerprint, true);
+	Entity * hitEntity = getEntityFromWorld(*world, hitId);
 
-	// Set direction.
-	ray.direction = bullet.ray.direction;
+	// We hit a fucker.
+	if (hitEntity != NULL)
+		return handleBulletHit(hitEntity, bullet);
 
-	// Stores all the hits so we can find closest one.
-	int hits[world->entitiesCount];
-	size_t hitsSize = 0;
-
-	// Loop through entities.
-	for (i = 0; i < world->entitiesCount; ++i) {
-		currentEntity = &world->entities[i];
-
-		// This was the entity that shot it.
-		if (currentEntity->fingerprint == bullet.fromFingerprint)
-			continue;
-		else if (currentEntity->model == NULL) // Null model indeed.
-			continue;
-
-		// Set position relative to entity.
-		ray.position = Vector3Subtract(bullet.ray.position, currentEntity->position);
-
-		// Loop through meshes.
-		for (j = 0; j < currentEntity->model->meshCount; ++j) {
-			collision = GetRayCollisionMesh(
-				ray,
-				currentEntity->model->meshes[j],
-				currentEntity->model->transform
-			);
-
-			// Did hit.
-			if (collision.hit) {
-				hits[hitsSize] = i;
-				++hitsSize;
-				break;
-			}
-		}
-	}
-
-	// No hits.
-	if (hitsSize == 0)
-		return (BulletHitInfo){
-			.hit = false,
-			.killed = false,
-			.hitId = ENTITY_NONE,
-		};
-
-	float dis = Vector3Distance(world->entities[hits[0]].position, bullet.ray.position);
-	float closest = dis;
-	int closestNum = 0;
-
-	// Find closest.
-	for (i = 0; i < hitsSize; ++i) {
-		dis = Vector3Distance(world->entities[hits[i]].position, bullet.ray.position);
-
-		// This fucker is closer.
-		if (dis < closest) {
-			closest = dis;
-			closestNum = i;
-		}
-	}
-
-	// Handle closest bullet.
-	return handleBulletHit(&world->entities[hits[closestNum]], bullet);
+	return (BulletHitInfo){
+		.hit = false,
+		.killed = false,
+		.hitId = ENTITY_NONE,
+	};
 }
-- 
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