Working on the new refactor of primitive and shader

src/display/primitive/skywall.h

@@ -0,0 +1,29 @@
+// Copyright (c) 2021 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "../../libs.h"
+#include "../../util/math.h"
+#include "primitive.h"
+
+/** How many slices in each cylinder. */
+#define SKYWALL_SLICE_COUNT 40
+
+/** How many vertices per slice */
+#define SKYWALL_VERTICES_PER_SLICE 2
+
+/** How many indices per slice */
+#define SKYWALL_INDICES_PER_SLICE 6
+
+/** How many vertices in the cylinder, +1 to have the cylinder "wrap" */
+#define SKYWALL_VERTICE_COUNT (SKYWALL_SLICE_COUNT+1)*SKYWALL_VERTICES_PER_SLICE
+
+/** How many indices in the cylinder */
+#define SKYWALL_INDICE_COUNT SKYWALL_INDICES_PER_SLICE*SKYWALL_SLICE_COUNT
+
+/** How big the skywall cylinder is */
+#define SKYWALL_SIZE 10
+
+void skywallInit(primitive_t *primitive);