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B32 inrect(V2 pos, V2 start, V2 end)
{
B32 res;
res = ((pos.x > start.x) && (pos.x < end.x) &&
(pos.y > start.y) && (pos.y < end.y));
return res;
}
void beginui(Shader shader, PRGEWindow wnd)
{
MAT4 proj;
glUseProgram(shader.id);
proj = ortho(0.0f, (F32)wnd.w, 0.0f, (F32)wnd.h, -1.0f, 1.0f);
setmat4fv(shader.id, PRGE_SHADER_PROJ_MAT, proj);
glDisable(GL_DEPTH_TEST);
}
void endui(void)
{
glEnable(GL_DEPTH_TEST);
glUseProgram(0);
}
B32 button(PRGEContext *prgectx, Shader shader, const char *name, V2 center, F32 w, F32 h)
{
B32 pressed;
Mesh quad;
V2 start, end;
MAT4 model;
V4 color;
pressed = 0;
quad = gen_quad(prgectx->tmpa, v3fromv2(center), V3_ZERO, w, h);
color = v4(1.0f, 0.0f, 0.0f, 1.0f);
start = v2(center.x-w/2.0f, center.y-h/2.0f);
end = v2(center.x+w/2.0f, center.y+h/2.0f);
if (inrect(prgectx->in.mouse_pos, start, end) && !prgectx->in.capture_mouse) {
color = v4(0.0f, 0.0f, 1.0f, 1.0f);
if (is_key_pressed(prgectx->in.mouse_left)) {
sys_printf("%s\n", name);
pressed = 1;
}
}
model = translmat4(MAT4_IDENTITY, v3(center.x, prgectx->wnd.h-center.y, 0.0f));
setmat4fv(shader.id, "model", model);
set4fv(shader.id, "color", color);
draw_mesh(quad);
clear_mesh(&quad);
return pressed;
}
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