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create buffers for overlay hex tiles

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This commit is contained in:
Josh Holtrop 2012-09-13 23:43:04 -04:00
parent ab65139951
commit 89fc42251f
2 changed files with 27 additions and 0 deletions
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25
src/client/Client-gl.cc
View File

@ -32,6 +32,19 @@ static const char *obj_uniform_names[] = {
#define OBJ_MODELVIEW obj_uniform_locations[6]
"modelview"
};
/* points of a horizontal hexagon 1.0 units high */
static const float overlay_hex_attributes[][2] = {
{0.0, 0.0},
{HEX_WIDTH_TO_HEIGHT / 2.0, 0.0},
{HEX_WIDTH_TO_HEIGHT / 4.0, 0.5},
{-HEX_WIDTH_TO_HEIGHT / 4.0, 0.5},
{-HEX_WIDTH_TO_HEIGHT / 2.0, 0.0},
{-HEX_WIDTH_TO_HEIGHT / 4.0, -0.5},
{HEX_WIDTH_TO_HEIGHT / 4.0, -0.5}
};
static const GLshort overlay_hex_indices[] = {
0, 1, 2, 3, 4, 5, 6
};
static bool load_file(const char *fname, WFObj::Buffer & buff)
{
@ -104,6 +117,18 @@ bool Client::initgl()
cerr << "Error loading hex-tile model" << endl;
return false;
}
if (!m_overlay_hex_attributes.create(GL_ARRAY_BUFFER, GL_STATIC_DRAW,
overlay_hex_attributes, sizeof(overlay_hex_attributes)))
{
cerr << "Error creating overlay hex attribute buffer" << endl;
return false;
}
if (!m_overlay_hex_indices.create(GL_ELEMENT_ARRAY_BUFFER, GL_STATIC_DRAW,
overlay_hex_indices, sizeof(overlay_hex_indices)))
{
cerr << "Error creating overlay hex indices buffer" << endl;
return false;
}
m_obj_program.get_uniform_locations(obj_uniform_names, NUM_OBJ_UNIFORMS,
obj_uniform_locations);
m_obj_program.use();

2
src/client/Client.h
View File

@ -36,6 +36,8 @@ class Client
WFObj m_tile_obj;
GLMatrix m_projection;
GLMatrix m_modelview;
GLBuffer m_overlay_hex_attributes;
GLBuffer m_overlay_hex_indices;
};
#endif