src/lua/embed/graphics.lua.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

/* graphics.lua */
static const char* graphics_lua = R"(
jin.graphics = jin.graphics or {} 

local default_shader = nil
local default_shader_source = [[
#VERTEX_SHADER

Vertex vert(Vertex v)
{
    return v;
}

#END_VERTEX_SHADER

#FRAGMENT_SHADER

Color frag(Color col, Texture tex, Vertex v)
{
    return col;
}

#END_FRAGMENT_SHADER
]]

local _init = jin.graphics.init
local initialized = false

jin.graphics.init = function(setting) 
    if initialized then 
        return initialized
    end
    initialized = _init(setting)
    if initialized then 
        default_shader = jin.graphics.newShader(default_shader_source)
        jin.graphics.useShader(default_shader)
    end
    return initialized 
end

jin.graphics.unuseShader = function()
    jin.graphics.useShader(default_shader)
end

-- Reset all attributes to default value.
jin.graphics.reset = function()
    jin.graphics.setColor(255, 255, 255, 255)
    jin.graphics.setClearColor(0, 0, 0, 255)
    jin.graphics.clear()
    jin.graphics.unsetFont()
end

)";