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-rw-r--r--src/primitives/primitives.c180
-rw-r--r--src/primitives/primitives.h59
2 files changed, 239 insertions, 0 deletions
diff --git a/src/primitives/primitives.c b/src/primitives/primitives.c
new file mode 100644
index 0000000..efc4a0f
--- /dev/null
+++ b/src/primitives/primitives.c
@@ -0,0 +1,180 @@
+#include "primitives.h"
+
+honey_result honey_mesh_new_textured_plane(honey_mesh* mesh,
+ float width,
+ float height) {
+ float x0 = 0;
+ float y0 = 0;
+ float x1 = width;
+ float y1 = height;
+
+ float vertices[] = {
+ /* position normal uv */
+ x0, y0, 0, 0, 0, 1, 0, 0,
+ x1, y0, 0, 0, 0, 1, 1, 0,
+ x0, y1, 0, 0, 0, 1, 0, 1,
+ x1, y1, 0, 0, 0, 1, 1, 1 };
+
+ unsigned int indices[] = {
+ 0, 1, 2,
+ 1, 2, 3 };
+
+ unsigned int attrib_sizes[] = { 3, 3, 2 };
+
+ honey_result result = honey_mesh_new(mesh,
+ vertices, 4,
+ 3, attrib_sizes,
+ indices, 6);
+ return result;
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+honey_result honey_mesh_new_cube(honey_mesh* mesh,
+ float width,
+ float height,
+ float depth) {
+ float x0 = 0;
+ float y0 = 0;
+ float z0 = 0;
+
+ float x1 = width;
+ float y1 = height;
+ float z1 = depth;
+
+ float vertices[] = {
+ /* position normal tex coord */
+ /* back face */
+ x0, y0, z0, 0, 0, -1,
+ x1, y0, z0, 0, 0, -1,
+ x0, y1, z0, 0, 0, -1,
+ x1, y1, z0, 0, 0, -1,
+
+ /* front face */
+ x0, y0, z1, 0, 0, 1,
+ x1, y0, z1, 0, 0, 1,
+ x0, y1, z1, 0, 0, 1,
+ x1, y1, z1, 0, 0, 1,
+
+ /* left face */
+ x0, y0, z0, -1, 0, 0,
+ x0, y1, z0, -1, 0, 0,
+ x0, y0, z1, -1, 0, 0,
+ x0, y1, z1, -1, 0, 0,
+
+ /* right face */
+ x1, y0, z0, 1, 0, 0,
+ x1, y1, z0, 1, 0, 0,
+ x1, y0, z1, 1, 0, 0,
+ x1, y1, z1, 1, 0, 0,
+
+ /* bottom face */
+ x0, y0, z0, 0, -1, 0,
+ x1, y0, z0, 0, -1, 0,
+ x0, y0, z1, 0, -1, 0,
+ x1, y0, z1, 0, -1, 0,
+
+ /* top face */
+ x0, y1, z0, 0, 1, 0,
+ x1, y1, z0, 0, 1, 0,
+ x0, y1, z1, 0, 1, 0,
+ x1, y1, z1, 0, 1, 0 };
+
+ unsigned int indices[] = {
+ 0, 1, 2,
+ 1, 2, 3,
+ 4, 5, 6,
+ 5, 6, 7,
+ 8, 9, 10,
+ 9, 10, 11,
+ 12, 13, 14,
+ 13, 14, 15,
+ 16, 17, 18,
+ 17, 18, 19,
+ 20, 21, 22,
+ 21, 22, 23 };
+
+ unsigned int attrib_sizes[] = { 3, 3 };
+
+ honey_result result = honey_mesh_new(mesh,
+ vertices, 24,
+ 2, attrib_sizes,
+ indices, 36);
+
+ return result;
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+honey_result honey_mesh_new_textured_cube(honey_mesh* mesh,
+ float width,
+ float height,
+ float depth) {
+ float x0 = 0;
+ float y0 = 0;
+ float z0 = 0;
+
+ float x1 = width;
+ float y1 = height;
+ float z1 = depth;
+
+ float vertices[] = {
+ /* position normal tex coord */
+ /* back face */
+ x0, y0, z0, 0, 0, -1, 0, 0,
+ x1, y0, z0, 0, 0, -1, 1, 0,
+ x0, y1, z0, 0, 0, -1, 0, 1,
+ x1, y1, z0, 0, 0, -1, 1, 1,
+
+ /* front face */
+ x0, y0, z1, 0, 0, 1, 0, 0,
+ x1, y0, z1, 0, 0, 1, 1, 0,
+ x0, y1, z1, 0, 0, 1, 0, 1,
+ x1, y1, z1, 0, 0, 1, 1, 1,
+
+ /* left face */
+ x0, y0, z0, -1, 0, 0, 0, 0,
+ x0, y1, z0, -1, 0, 0, 1, 0,
+ x0, y0, z1, -1, 0, 0, 0, 1,
+ x0, y1, z1, -1, 0, 0, 1, 1,
+
+ /* right face */
+ x1, y0, z0, 1, 0, 0, 0, 0,
+ x1, y1, z0, 1, 0, 0, 1, 0,
+ x1, y0, z1, 1, 0, 0, 0, 1,
+ x1, y1, z1, 1, 0, 0, 1, 1,
+
+ /* bottom face */
+ x0, y0, z0, 0, -1, 0, 0, 0,
+ x1, y0, z0, 0, -1, 0, 1, 0,
+ x0, y0, z1, 0, -1, 0, 0, 1,
+ x1, y0, z1, 0, -1, 0, 1, 1,
+
+ /* top face */
+ x0, y1, z0, 0, 1, 0, 0, 0,
+ x1, y1, z0, 0, 1, 0, 1, 0,
+ x0, y1, z1, 0, 1, 0, 0, 1,
+ x1, y1, z1, 0, 1, 0, 1, 1 };
+
+ unsigned int indices[] = {
+ 0, 1, 2,
+ 1, 2, 3,
+ 4, 5, 6,
+ 5, 6, 7,
+ 8, 9, 10,
+ 9, 10, 11,
+ 12, 13, 14,
+ 13, 14, 15,
+ 16, 17, 18,
+ 17, 18, 19,
+ 20, 21, 22,
+ 21, 22, 23 };
+
+ unsigned int attrib_sizes[] = { 3, 3, 2 };
+
+ honey_result result;
+ result = honey_mesh_new(mesh, vertices, 24,
+ 3, attrib_sizes,
+ indices, 36);
+ return result;
+}
diff --git a/src/primitives/primitives.h b/src/primitives/primitives.h
new file mode 100644
index 0000000..fbf7753
--- /dev/null
+++ b/src/primitives/primitives.h
@@ -0,0 +1,59 @@
+#ifndef HONEY_PRIMITIVES_H
+#define HONEY_PRIMITIVES H
+
+/** @file primitives.h
+ *
+ * @brief Define various common primitive objects.
+ */
+
+#include "../common.h"
+#include "../mesh/mesh.h"
+
+/** @brief Create a textured plane.
+ *
+ * This function creates a plane with vertex positions in attribute 0,
+ * vertex normals in attribute 1, and UV coordinates in attribute 2.
+ *
+ * @param[out] mesh Pointer to the destination mesh
+ * @param[in] width Desired width of the plane (x-axis)
+ * @param[in] height Desired height of the plane (y-axis)
+ *
+ * @return 0 (HONEY_OK) on success, and an error code otherwise.
+ */
+honey_result honey_mesh_new_textured_plane(honey_mesh* mesh,
+ float width,
+ float height);
+
+/** @brief Create a cube.
+ *
+ * This function creates a cube with vertex positions in attribute 0.
+ *
+ * @param[out] mesh Pointer to the destination mesh
+ * @param[in] width Desired width of the cube (x-axis)
+ * @param[in] height Desired height of the cube (y-axis)
+ * @param[in] depth Desired depth of the cube (z-axis)
+ *
+ * @return Success or failure code
+ */
+honey_result honey_mesh_new_cube(honey_mesh* mesh,
+ float width,
+ float height,
+ float depth);
+/** @brief Create a textured cube.
+ *
+ * This function creates a cube with vertex positions in attribute 0,
+ * and texture coordinates in attribute 1.
+ *
+ * @param[out] mesh Pointer to the destination mesh
+ * @param[in] width Desired width of the cube (x-axis)
+ * @param[in] height Desired height of the cube (y-axis)
+ * @param[in] depth Desired depth of the cube (z-axis)
+ *
+ * @return Success or failure code
+ */
+honey_result honey_mesh_new_textured_cube(honey_mesh* mesh,
+ float width,
+ float height,
+ float depth);
+
+#endif
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