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void game_init(State *state)
{
U64 persistent_size = Megabytes(1);
state->persistent_arena = arena_alloc(persistent_size);
state->shader = create_shader_program(str8lit("shaders/default.vert"),
str8lit("shaders/default.frag"));
Vertex verts[] = {
vertex(v3(-0.5f, -0.5f, 0.0f)),
vertex(v3(0.0f, 0.5f, 0.0f)),
vertex(v3(0.5f, -0.5f, 0.0f))
};
U32 indices[] = { 0, 1, 2 };
state->the_mesh = mesh(state->persistent_arena, verts, ArrayCount(verts), indices, ArrayCount(indices));
}
void game_update_and_render(State *state, Input *input)
{
/* NOTE(pryazha): Update */
if (key_is_pressed(input->exit))
input->is_running = 0;
/* NOTE(pryazha): Render */
glClearColor(0.15f, 0.15f, 0.15f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(state->shader);
F32 angle = 20.0f*state->t;
Mat4 model = mat4rotate(MAT4_IDENTITY, v3(0.0f, 0.0f, angle));
shader_set_mat4fv(state->shader, "model", model);
mesh_draw(*state->the_mesh);
glUseProgram(0);
state->t += input->dt;
}
void game_clear(State *state)
{
arena_release(state->persistent_arena);
}
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