diff options
Diffstat (limited to 'src/lua/embed/scripts/graphics.lua')
| -rw-r--r-- | src/lua/embed/scripts/graphics.lua | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/lua/embed/scripts/graphics.lua b/src/lua/embed/scripts/graphics.lua new file mode 100644 index 0000000..0a66127 --- /dev/null +++ b/src/lua/embed/scripts/graphics.lua @@ -0,0 +1,139 @@ +/* graphics.lua */ +static const char* graphics_lua = R"( +jin.graphics = jin.graphics or {} + +local jg = jin.graphics + +jg.RenderMode = { + FILL = 1, + LINE = 2, +} + +jg.SpriteOrigin = { + TOPLEFT = 0, + TOPCENTER = 1, + TOPRIGHT = 2, + MIDDLELEFT = 3, + MIDDLECENTER = 4, + MIDDLERIGHT = 5, + BOTTOMLEFT = 6, + BOTTOMCENTER = 7, + BOTTOMRIGHT = 8 +} + +jg.SpriteMode = { + SINGLE = 1, + RANDOM = 2, + ANIMATED = 3 +} + +-- built in shaders +jg.Shaders = { + Font = nil, + Texture = nil, + Sprite = nil, + SpriteSheet = nil, + Default = nil +} + +local function compileBuiltInShaders() + jg.Shaders.Font = jg.newShader([[ + #VERTEX_SHADER + Vertex vert(Vertex v) + { + return v; + } + #END_VERTEX_SHADER + #FRAGMENT_SHADER + Color frag(Color col, Texture tex, Vertex v) + { + return Color(col.rgb, texel(tex, v.uv).a); + } + #END_FRAGMENT_SHADER + ]]) + jg.Shaders.Texture = jg.newShader([[ + #VERTEX_SHADER + Vertex vert(Vertex v) + { + return v; + } + #END_VERTEX_SHADER + #FRAGMENT_SHADER + Color frag(Color col, Texture tex, Vertex v) + { + return col * texel(tex, v.uv); + } + #END_FRAGMENT_SHADER + ]]) + jg.Shaders.Sprite = jg.newShader([[ + #VERTEX_SHADER + Vertex vert(Vertex v) + { + return v; + } + #END_VERTEX_SHADER + #FRAGMENT_SHADER + Color frag(Color col, Texture tex, Vertex v) + { + return col * texel(tex, v.uv); + } + #END_FRAGMENT_SHADER + ]]) + jg.Shaders.SpriteSheet = jg.newShader([[ + #VERTEX_SHADER + Vertex vert(Vertex v) + { + return v; + } + #END_VERTEX_SHADER + #FRAGMENT_SHADER + Color frag(Color col, Texture tex, Vertex v) + { + return col * texel(tex, v.uv); + } + #END_FRAGMENT_SHADER + ]]) + jg.Shaders.Default = jg.newShader([[ + #VERTEX_SHADER + Vertex vert(Vertex v) + { + return v; + } + #END_VERTEX_SHADER + #FRAGMENT_SHADER + Color frag(Color col, Texture tex, Vertex v) + { + return col * texel(tex, v.uv); + } + #END_FRAGMENT_SHADER + ]]) +end + +local _init = jg.init +local initialized = false +jg.init = function(setting) + if initialized then + return initialized + end + initialized = _init(setting) + if initialized then + compileBuiltInShaders() + jg.useShader(jg.Shaders.Default) + end + return initialized +end + +jg.unuseShader = function() + jg.useShader(jg.Shaders.Default) +end + +-- Reset all attributes to default value. +jg.reset = function() + jg.setColor(255, 255, 255, 255) + jg.setClearColor(0, 0, 0, 255) + jg.clear() + jg.unsetFont() + jg.unuseShader() +end + +)";
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