1 files changed, 40 insertions, 0 deletions
diff --git a/src/cameras.c b/src/cameras.c
new file mode 100644
index 0000000..6a960f5
--- /dev/null
+++ b/src/cameras.c
@@ -0,0 +1,40 @@
+#include "cameras.h"
+#include "game.h"
+#include "world.h"
+
+// First person camera indeed.
+void initFirstPersonCamera(Game * game, Camera3D * camera) {
+	*camera = (Camera3D){
+		.fovy = 90.0,
+		.projection = CAMERA_PERSPECTIVE
+	};
+}
+
+void updateFirstPersonCamera(Game * game, Camera3D * camera) {
+	Entity * player = getEntityFromWorld(game->world, 0);
+	Vector3 direction = Vector3RotateByQuaternion((Vector3){0.0, 0.0, 1.0}, player->rotation);
+
+	camera->position = Vector3Add(player->position, Vector3Scale(direction, CAMERA_DIS));
+	camera->target = Vector3Add(camera->position, direction);
+	camera->up = Vector3RotateByQuaternion((Vector3){0.0, 1.0, 0.0}, player->rotation);
+}
+
+// Callbacks indeed.
+const CameraInitCb cameraInitCallbacks[CAMERA_COUNT] = {
+	initFirstPersonCamera
+};
+
+const CameraCb cameraCallbacks[CAMERA_COUNT] = {
+	updateFirstPersonCamera
+};
+
+void initCameras(Game * game, Cameras cameras) {
+	int i;
+
+	for (i = 0; i < CAMERA_COUNT; ++i)
+		cameraInitCallbacks[i](game, &cameras[i]);
+}
+
+void runCameraUpdate(Game * game, Cameras cameras, CameraId id) {
+	cameraCallbacks[id](game, &cameras[id]);
+}