Functions from ULog and some from OpenGL available in Lua

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/Lua@1548 b956fd51-792f-4845-bead-9b4dfca2ff2c

2 files changed, 38 insertions, 0 deletions

diff --git a/game/LuaCommands.odt b/game/LuaCommands.odt
new file mode 100644
index 00000000..fcbcc426
--- /dev/null
+++ b/game/LuaCommands.odt
diff --git a/game/main.lua b/game/main.lua
new file mode 100644
index 00000000..ed12d8ed
--- /dev/null
+++ b/game/main.lua
@@ -0,0 +1,38 @@
+-- Calculate FPS
+FPScounter = 1 + (FPScounter or 0) -- increment FPScounter (which is nil, when undefined, therefore "or 0") 
+if os.time() > (LastTime or 0) then
+  LastTime = os.time()
+  print("FPS:    " .. FPScounter - (LastFPScounter or 0)) -- print is only displayed, if compiled with DEBUG
+  LastFPScounter = FPScounter
+  -- Show the first 200 Textures
+  TexNum = 1 + (TexNum or 0)
+  if TexNum > 200 then TexNum = 1 end
+  print("TexNum: " .. (TexNum or 0))
+end
+
+-- Draw some rectangles
+gl.Enable("GL_BLEND")
+gl.Color(1, 1, 1, 0.5)
+for i = 1,10 do
+  gl.Begin("GL_LINE_loop")
+  gl.Vertex(0+4*i, 0+4*i);
+  gl.Vertex(0+4*i, 600-4*i);
+  gl.Vertex(800-4*i, 600-4*i);
+  gl.Vertex(800-4*i, 0+4*i);
+  gl.End()
+end
+gl.Disable("GL_BLEND")
+
+-- Display a Texture
+gl.Enable("GL_BLEND")
+gl.Enable("GL_TEXTURE_2D")
+gl.Color(1, 1, 1, 1)
+gl.BindTexture("GL_TEXTURE_2D", TexNum or 0)
+gl.Begin("GL_QUADS")
+gl.TexCoord(0, 0); gl.Vertex(10,  10);
+gl.TexCoord(0, 1); gl.Vertex(10,  110);
+gl.TexCoord(1, 1); gl.Vertex(110, 110);
+gl.TexCoord(1, 0); gl.Vertex(110, 10);
+gl.End()
+gl.Disable("GL_TEXTURE_2D")
+gl.Disable("GL_BLEND")