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Added graphics functions

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This commit is contained in:
Alessandro Proto 2023-01-15 20:19:45 +01:00
parent ad2166831b
commit 5f8f946c29
1 changed files with 194 additions and 8 deletions
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202
Capy64/LuaRuntime/Libraries/Graphics.cs
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@ -15,6 +15,16 @@ public class Graphics : IPlugin
}
private LuaRegister[] GfxLib = new LuaRegister[] {
new()
{
name = "plot",
function = L_Plot,
},
new()
{
name = "plots",
function = L_Plots,
},
new()
{
name = "drawPoint",
@ -22,8 +32,38 @@ public class Graphics : IPlugin
},
new()
{
name = "drawPoints",
function = L_DrawPoints,
name = "drawCircle",
function = L_DrawCircle
},
new()
{
name = "drawLine",
function = L_DrawLine
},
new()
{
name = "drawRectangle",
function = L_DrawRectangle
},
new()
{
name = "drawPolygon",
function = L_DrawPolygon
},
new()
{
name = "drawEllipse",
function = L_DrawEllipse
},
new()
{
name = "drawString",
function = L_DrawString
},
new()
{
name = "measureString",
function = L_MeasureString
},
new(), // NULL
};
@ -40,22 +80,21 @@ public class Graphics : IPlugin
return 1;
}
private static int L_DrawPoint(IntPtr state)
private static int L_Plot(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = L.CheckInteger(1) - 1;
var y = L.CheckInteger(2) - 1;
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
var c = L.CheckInteger(3);
var s = L.OptInteger(4, 1);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawPoint(new(x, y), new Color(r, g, b), (int)s);
_game.Drawing.Plot(new Point(x, y), new Color(r, g, b));
return 0;
}
private static int L_DrawPoints(IntPtr state)
private static int L_Plots(IntPtr state)
{
var L = Lua.FromIntPtr(state);
@ -89,4 +128,151 @@ public class Graphics : IPlugin
return 0;
}
private static int L_DrawPoint(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
var c = L.CheckInteger(3);
var s = (int)L.OptNumber(4, 1);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawPoint(new(x, y), new Color(r, g, b), s);
return 0;
}
private static int L_DrawCircle(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
var rad = (int)L.CheckNumber(3);
var c = L.CheckInteger(4);
var s = (int)L.OptNumber(5, 1);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawCircle(new(x, y), rad, new Color(r, g, b), s);
return 0;
}
private static int L_DrawLine(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x1 = (int)L.CheckNumber(1) - 1;
var y1 = (int)L.CheckNumber(2) - 1;
var x2 = (int)L.CheckNumber(3) - 1;
var y2 = (int)L.CheckNumber(4) - 1;
var c = L.CheckInteger(5);
var s = (int)L.OptNumber(6, 1);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawLine(new(x1, y1), new(x2, y2), new Color(r, g, b), s);
return 0;
}
private static int L_DrawRectangle(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
var w = (int)L.CheckNumber(3);
var h = (int)L.CheckNumber(4);
var c = L.CheckInteger(5);
var s = (int)L.OptNumber(6, 1);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawRectangle(new(x, y), new(w, h), new Color(r, g, b), s);
return 0;
}
private static int L_DrawPolygon(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
L.CheckType(3, LuaType.Table);
var c = L.CheckInteger(4);
var s = (int)L.OptNumber(5, 1);
int size = (int)L.Length(3);
L.ArgumentCheck(size % 2 == 0, 1, "expected an even table");
List<Vector2> pts = new();
for (int i = 1; i <= size; i += 2)
{
L.GetInteger(3, i);
L.ArgumentCheck(L.IsNumber(-1), 1, "expected number at index " + i);
var xp = (int)L.ToNumber(-1) - 1;
L.Pop(1);
L.GetInteger(3, i + 1);
L.ArgumentCheck(L.IsNumber(-1), 1, "expected number at index " + (i + 1));
var yp = (int)L.ToNumber(-1) - 1;
L.Pop(1);
pts.Add(new(xp, yp));
}
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawPolygon(new(x, y), pts.ToArray(), new(r, g, b), s);
return 0;
}
private static int L_DrawEllipse(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
var rx = (int)L.CheckNumber(3);
var ry = (int)L.CheckNumber(4);
var c = L.CheckInteger(5);
var s = (int)L.OptNumber(6, 1);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawEllipse(new(x, y), new(rx, ry), new Color(r, g, b), s);
return 0;
}
private static int L_DrawString(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var x = (int)L.CheckNumber(1) - 1;
var y = (int)L.CheckNumber(2) - 1;
var c = L.CheckInteger(3);
var t = L.CheckString(4);
Utils.UnpackRGB((uint)c, out var r, out var g, out var b);
_game.Drawing.DrawString(new Vector2(x, y), t, new Color(r, g, b));
return 0;
}
private static int L_MeasureString(IntPtr state)
{
var L = Lua.FromIntPtr(state);
var t = L.CheckString(1);
var sizes = _game.Drawing.MeasureString(t);
L.PushNumber((int)sizes.X);
L.PushNumber((int)sizes.Y);
return 2;
}
}