Add camera subsystem

1 files changed, 37 insertions, 0 deletions

diff --git a/src/camera.c b/src/camera.c
new file mode 100644
index 0000000..ffb63cb
--- /dev/null
+++ b/src/camera.c
@@ -0,0 +1,37 @@
+/*
+ * Tuxánci 2 - A first person shooter
+ * Copyright (C) 2007-2011  Tuxánci Development Team
+ * Copyright (C) 2025-2026  Connor Thomson
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "camera.h"
+#include "ta_sdl.h"
+
+ta_camera ta_camera_current;
+
+void ta_camera_init(void) {
+    ta_camera_current = (ta_camera){ 0.0f, 0.0f, 5.0f };
+}
+
+void ta_camera_get_view_matrix(float *matrix) {
+    for (int index = 0; index < 16; index++) {
+        matrix[index] = index % 5 == 0 ? 1.0f : 0.0f;
+    }
+
+    matrix[12] = -ta_camera_current.x;
+    matrix[13] = -ta_camera_current.y;
+    matrix[14] = -ta_camera_current.z;
+}
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