public static Rectangle GetBounds(GameObject obj, ShpFile shp, DrawProperties props) {
shp.Initialize();
int frameIndex = DecideFrameIndex(props.FrameDecider(obj), shp.NumImages);
var offset = new Point(-shp.Width / 2, -shp.Height / 2);
Size size = new Size(0, 0);
var img = shp.GetImage(frameIndex);
if (img != null) {
offset.Offset(img.X, img.Y);
size = new Size(img.Width, img.Height);
}
return new Rectangle(offset, size);
}
unsafe public static void DrawAlpha(GameObject obj, ShpFile shp, DrawProperties props, DrawingSurface ds)
{
shp.Initialize();
// Change originally implemented by Starkku: Ares supports multiframe AlphaImages, based on frame count
// the direction the unit it facing.
int frameIndex = props.FrameDecider(obj);
var img = shp.GetImage(frameIndex);
var imgData = img.GetImageData();
var c_px = (uint)(img.Width * img.Height);
if (c_px <= 0 || img.Width < 0 || img.Height < 0 || frameIndex > shp.NumImages)
{
return;
}
Point offset = props.GetOffset(obj);
offset.X += obj.Tile.Dx * Drawable.TileWidth / 2;
offset.Y += (obj.Tile.Dy - obj.Tile.Z) * Drawable.TileHeight / 2;
Logger.Trace("Drawing AlphaImage SHP file {0} (frame {1}) at ({2},{3})", shp.FileName, frameIndex, offset.X, offset.Y);
int stride = ds.BitmapData.Stride;
var w_low = (byte *)ds.BitmapData.Scan0;
byte *w_high = (byte *)ds.BitmapData.Scan0 + stride * ds.BitmapData.Height;
int dx = offset.X + Drawable.TileWidth / 2 - shp.Width / 2 + img.X,
dy = offset.Y - shp.Height / 2 + img.Y;
byte *w = (byte *)ds.BitmapData.Scan0 + dx * 3 + stride * dy;
short zOffset = (short)((obj.Tile.Rx + obj.Tile.Ry) * Drawable.TileHeight / 2 - shp.Height / 2 + img.Y);
int rIdx = 0;
for (int y = 0; y < img.Height; y++)
{
for (int x = 0; x < img.Width; x++)
{
if (imgData[rIdx] != 0 && w_low <= w && w < w_high)
{
float mult = imgData[rIdx] / 127.0f;
*(w + 0) = limit(mult, *(w + 0));
*(w + 1) = limit(mult, *(w + 1));
*(w + 2) = limit(mult, *(w + 2));
}
// Up to the next pixel
rIdx++;
w += 3;
}
w += stride - 3 * img.Width; // ... and if we're no more on the same row,
// adjust the writing pointer accordingy
}
}
public Rectangle GetBounds(GameObject obj, ShpFile shp, DrawProperties props)
{
shp.Initialize();
int frameIndex = DecideFrameIndex(props.FrameDecider(obj), shp.NumImages);
var offset = new Point(-shp.Width / 2, -shp.Height / 2);
Size size = new Size(0, 0);
var img = shp.GetImage(frameIndex);
if (img != null)
{
offset.Offset(img.X, img.Y);
size = new Size(img.Width, img.Height);
}
return(new Rectangle(offset, size));
}
private unsafe void BlitVoxelToSurface(DrawingSurface ds, DrawingSurface vxl_ds, GameObject obj, DrawProperties props) {
Point d = new Point(obj.Tile.Dx * TileWidth / 2, (obj.Tile.Dy - obj.Tile.Z) * TileHeight / 2);
d.Offset(props.GetOffset(obj));
d.Offset(-vxl_ds.BitmapData.Width / 2, -vxl_ds.BitmapData.Height / 2);
// rows inverted!
var w_low = (byte*)ds.BitmapData.Scan0;
byte* w_high = w_low + ds.BitmapData.Stride * ds.BitmapData.Height;
var zBuffer = ds.GetZBuffer();
var shadowBufVxl = vxl_ds.GetShadows();
var shadowBuf = ds.GetShadows();
// int rowsTouched = 0;
// short firstRowTouched = short.MaxValue;
for (int y = 0; y < vxl_ds.Height; y++) {
byte* src_row = (byte*)vxl_ds.BitmapData.Scan0 + vxl_ds.BitmapData.Stride * (vxl_ds.Height - y - 1);
byte* dst_row = ((byte*)ds.BitmapData.Scan0 + (d.Y + y) * ds.BitmapData.Stride + d.X * 3);
int zIdx = (d.Y + y) * ds.Width + d.X;
if (dst_row < w_low || dst_row >= w_high) continue;
for (int x = 0; x < vxl_ds.Width; x++) {
// only non-transparent pixels
if (*(src_row + x * 4 + 3) > 0) {
*(dst_row + x * 3) = *(src_row + x * 4);
*(dst_row + x * 3 + 1) = *(src_row + x * 4 + 1);
*(dst_row + x * 3 + 2) = *(src_row + x * 4 + 2);
// if (y < firstRowTouched)
// firstRowTouched = (short)y;
short zBufVal = (short)((obj.Tile.Rx + obj.Tile.Ry + obj.Tile.Z) * TileHeight / 2);
if (zBufVal >= zBuffer[zIdx])
zBuffer[zIdx] = zBufVal;
}
// or shadows
else if (shadowBufVxl[x + y * vxl_ds.Height]) {
int shadIdx = (d.Y + y) * ds.Width + d.X + x;
if (!shadowBuf[shadIdx]) {
*(dst_row + x * 3) /= 2;
*(dst_row + x * 3 + 1) /= 2;
*(dst_row + x * 3 + 2) /= 2;
shadowBuf[shadIdx] = true;
}
}
zIdx++;
}
}
}
public static Rectangle GetBounds(GameObject obj, VxlFile vxl, HvaFile hva, DrawProperties props)
{
vxl.Initialize();
hva.Initialize();
float direction = (obj is OwnableObject) ? (obj as OwnableObject).Direction : 0;
float objectRotation = 45f - direction / 256f * 360f; // convert game rotation to world degrees
var world = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(60));
world = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(objectRotation)) * world; // object facing
world = Matrix4.Scale(0.25f, 0.25f, 0.25f) * world;
// art.ini TurretOffset value positions some voxel parts over our x-axis
world = Matrix4.CreateTranslation(0.18f * props.TurretVoxelOffset, 0, 0) * world;
var camera = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(30), 1f, 1, 100);
world = world * camera;
Rectangle ret = Rectangle.Empty;
foreach (var section in vxl.Sections)
{
var frameRot = hva.LoadGLMatrix(section.Index);
frameRot.M41 *= section.HVAMultiplier * section.ScaleX;
frameRot.M42 *= section.HVAMultiplier * section.ScaleY;
frameRot.M43 *= section.HVAMultiplier * section.ScaleZ;
var frameTransl = Matrix4.CreateTranslation(section.MinBounds);
var frame = frameTransl * frameRot * world;
// floor rect of the bounding box
Vector3 floorTopLeft = new Vector3(0, 0, 0);
Vector3 floorTopRight = new Vector3(section.SpanX, 0, 0);
Vector3 floorBottomRight = new Vector3(section.SpanX, section.SpanY, 0);
Vector3 floorBottomLeft = new Vector3(0, section.SpanY, 0);
// ceil rect of the bounding box
Vector3 ceilTopLeft = new Vector3(0, 0, section.SpanZ);
Vector3 ceilTopRight = new Vector3(section.SpanX, 0, section.SpanZ);
Vector3 ceilBottomRight = new Vector3(section.SpanX, section.SpanY, section.SpanZ);
Vector3 ceilBottomLeft = new Vector3(0, section.SpanY, section.SpanZ);
// apply transformations
floorTopLeft = Vector3.Transform(floorTopLeft, frame);
floorTopRight = Vector3.Transform(floorTopRight, frame);
floorBottomRight = Vector3.Transform(floorBottomRight, frame);
floorBottomLeft = Vector3.Transform(floorBottomLeft, frame);
ceilTopLeft = Vector3.Transform(ceilTopLeft, frame);
ceilTopRight = Vector3.Transform(ceilTopRight, frame);
ceilBottomRight = Vector3.Transform(ceilBottomRight, frame);
ceilBottomLeft = Vector3.Transform(ceilBottomLeft, frame);
int FminX = (int)Math.Floor(Math.Min(Math.Min(Math.Min(floorTopLeft.X, floorTopRight.X), floorBottomRight.X), floorBottomLeft.X));
int FmaxX = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(floorTopLeft.X, floorTopRight.X), floorBottomRight.X), floorBottomLeft.X));
int FminY = (int)Math.Floor(Math.Min(Math.Min(Math.Min(floorTopLeft.Y, floorTopRight.Y), floorBottomRight.Y), floorBottomLeft.Y));
int FmaxY = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(floorTopLeft.Y, floorTopRight.Y), floorBottomRight.Y), floorBottomLeft.Y));
int TminX = (int)Math.Floor(Math.Min(Math.Min(Math.Min(ceilTopLeft.X, ceilTopRight.X), ceilBottomRight.X), ceilBottomLeft.X));
int TmaxX = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(ceilTopLeft.X, ceilTopRight.X), ceilBottomRight.X), ceilBottomLeft.X));
int TminY = (int)Math.Floor(Math.Min(Math.Min(Math.Min(ceilTopLeft.Y, ceilTopRight.Y), ceilBottomRight.Y), ceilBottomLeft.Y));
int TmaxY = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(ceilTopLeft.Y, ceilTopRight.Y), ceilBottomRight.Y), ceilBottomLeft.Y));
int minX = Math.Min(FminX, TminX);
int maxX = Math.Max(FmaxX, TmaxX);
int minY = Math.Min(FminY, TminY);
int maxY = Math.Max(FmaxY, TmaxY);
ret = Rectangle.Union(ret, Rectangle.FromLTRB(minX, minY, maxX, maxY));
}
// return new Rectangle(-ret.Width / 2, -ret.Height / 2, ret.Width, ret.Height);
return(ret);
}
public DrawingSurface Render(VxlFile vxl, HvaFile hva, GameObject obj, DrawProperties props)
{
if (!_isInit)
{
Initialize();
}
if (!_canRender)
{
Logger.Warn("Not rendering {0} because no OpenGL context could be obtained", vxl.FileName);
return(null);
}
Logger.Debug("Rendering voxel {0}", vxl.FileName);
vxl.Initialize();
hva.Initialize();
GL.Viewport(0, 0, _surface.BitmapData.Width, _surface.BitmapData.Height);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
// RA2 uses dimetric projection with camera elevated 30° off the ground
GL.MatrixMode(MatrixMode.Projection);
var persp = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(30), _surface.BitmapData.Width / (float)_surface.BitmapData.Height, 1, _surface.BitmapData.Height);
GL.LoadMatrix(ref persp);
GL.MatrixMode(MatrixMode.Modelview);
#if DEBUG
/*
* GL.PushMatrix();
* GL.LineWidth(4);
* GL.Color3(Color.Red);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(-100, 0, 0);
* GL.Vertex3(100, 0, 0);
* GL.End();
* GL.Color3(Color.Green);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, -100, 0);
* GL.Vertex3(0, 100, 0);
* GL.End();
* GL.Color3(Color.White);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, 0, -100);
* GL.Vertex3(0, 0, 100);
* GL.End();
* GL.PopMatrix();*/
#endif
var lookat = Matrix4.LookAt(0, 0, -10, 0, 0, 0, 0, 1, 0);
GL.LoadMatrix(ref lookat);
GL.Translate(0, 0, 10);
float direction = (obj is OwnableObject) ? (obj as OwnableObject).Direction : 0;
float objectRotation = 45f - direction / 256f * 360f; // convert game rotation to world degrees
var world = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(60));
world = Matrix4.CreateRotationY(MathHelper.DegreesToRadians(180)) * world; // this is how the game places voxels flat on the world
world = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(objectRotation)) * world; // object facing
world = Matrix4.Scale(0.028f, 0.028f, 0.028f) * world;
// art.ini TurretOffset value positions some voxel parts over our x-axis
world = Matrix4.CreateTranslation(0.18f * props.TurretVoxelOffset, 0, 0) * world;
GL.MultMatrix(ref world);
// direction of light vector given by pitch & yaw
float pitch = MathHelper.DegreesToRadians(210);
float yaw = MathHelper.DegreesToRadians(120);
// helps to find good pitch/yaw
/*var colors = new[] { Color.Red, Color.Green, Color.Blue, Color.Yellow, Color.Orange, Color.Black, Color.Purple, Color.SlateBlue, Color.DimGray, Color.White, Color.Teal, Color.Tan };
* for (int i = 0; i < 360; i += 30) {
* for (int j = 0; j < 360; j += 30) {
* GL.Color3(colors[i / 30]);
* var shadowTransform2 =
* Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(210))
* Matrix4.CreateRotationY(MathHelper.DegreesToRadians(120));
* GL.LineWidth(2);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, 0, 0);
* GL.Vertex3(Vector3.Multiply(ExtractRotationVector(ToOpenGL(Matrix4.Invert(world * shadowTransform2))), 100f));
* GL.End();
* }
* }*/
var shadowTransform = Matrix4.CreateRotationZ(pitch) * Matrix4.CreateRotationY(yaw);
foreach (var section in vxl.Sections)
{
GL.PushMatrix();
var frameRot = hva.LoadGLMatrix(section.Index);
frameRot.M41 *= section.HVAMultiplier * section.ScaleX;
frameRot.M42 *= section.HVAMultiplier * section.ScaleY;
frameRot.M43 *= section.HVAMultiplier * section.ScaleZ;
var frameTransl = Matrix4.CreateTranslation(section.MinBounds);
var frame = frameTransl * frameRot;
GL.MultMatrix(ref frame);
// undo world transformations on light direction
var lightDirection = ExtractRotationVector(ToOpenGL(Matrix4.Invert(world * frame * shadowTransform)));
// draw line in direction light comes from
/*GL.Color3(Color.Red);
* GL.LineWidth(4f);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, 0, 0);
* GL.Vertex3(Vector3.Multiply(lightDirection, 100f));
* GL.End();*/
GL.Begin(BeginMode.Quads);
for (uint x = 0; x != section.SizeX; x++)
{
for (uint y = 0; y != section.SizeY; y++)
{
foreach (VxlFile.Voxel vx in section.Spans[x, y].Voxels)
{
Color color = obj.Palette.Colors[vx.ColorIndex];
Vector3 normal = section.GetNormal(vx.NormalIndex);
// shader function taken from https://github.com/OpenRA/OpenRA/blob/bleed/cg/vxl.fx
// thanks to pchote for a LOT of help getting it right
Vector3 colorMult = Vector3.Add(Ambient, Diffuse * Math.Max(Vector3.Dot(normal, lightDirection), 0f));
GL.Color3(
(byte)Math.Min(255, color.R * colorMult.X),
(byte)Math.Min(255, color.G * colorMult.Y),
(byte)Math.Min(255, color.B * colorMult.Z));
Vector3 vxlPos = Vector3.Multiply(new Vector3(x, y, vx.Z), section.Scale);
RenderVoxel(vxlPos);
/* draw line in normal direction
* if (r.Next(100) == 4) {
* float m = Math.Max(Vector3.Dot(normal, lightDirection), 0f);
* GL.Color3(m, m, m);
* GL.LineWidth(1);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(new Vector3(x, y, vx.Z));
* GL.Vertex3(new Vector3(x, y, vx.Z) + Vector3.Multiply(normal, 100f));
* GL.End();
* }*/
}
}
}
GL.End();
GL.PopMatrix();
}
// read pixels back to surface
GL.ReadPixels(0, 0, _surface.BitmapData.Width, _surface.BitmapData.Height, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, _surface.BitmapData.Scan0);
return(_surface);
}
public DrawingSurface Render(VxlFile vxl, HvaFile hva, GameObject obj, DrawProperties props)
{
if (!_isInit)
{
Initialize();
}
if (!_canRender)
{
Logger.Warn("Not rendering {0} because no OpenGL context could be obtained", vxl.FileName);
return(null);
}
Logger.Debug("Rendering voxel {0}", vxl.FileName);
vxl.Initialize();
hva.Initialize();
GL.Viewport(0, 0, _surface.BitmapData.Width, _surface.BitmapData.Height);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
// RA2 uses dimetric projection with camera elevated 30° off the ground
GL.MatrixMode(MatrixMode.Projection);
var persp = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(30), _surface.BitmapData.Width / (float)_surface.BitmapData.Height, 1, _surface.BitmapData.Height);
GL.LoadMatrix(ref persp);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
var lookat = Matrix4.LookAt(0, 0, -10, 0, 0, 0, 0, 1, 0);
GL.MultMatrix(ref lookat);
var trans = Matrix4.CreateTranslation(0, 0, 10);
GL.MultMatrix(ref trans);
// align and zoom
var world = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(60));
world = Matrix4.CreateRotationY(MathHelper.DegreesToRadians(180)) * world;
world = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(-45)) * world;
world = Matrix4.Scale(0.028f, 0.028f, 0.028f) * world;
GL.MultMatrix(ref world);
// DrawAxes();
// determine tilt vectors
Matrix4 tilt = Matrix4.Identity;
int tiltPitch = 0, tiltYaw = 0;
if (obj.Tile.Drawable != null)
{
var img = (obj.Tile.Drawable as TileDrawable).GetTileImage(obj.Tile);
int ramp = img?.RampType ?? 0;
if (ramp == 0 || ramp >= 17)
{
tiltPitch = tiltYaw = 0;
}
else if (ramp <= 4)
{
// screen-diagonal facings (perpendicular to axes)
tiltPitch = 25;
tiltYaw = -90 * ramp;
}
else
{
// world-diagonal facings (perpendicular to screen)
tiltPitch = 25;
tiltYaw = 225 - 90 * ((ramp - 1) % 4);
}
tilt *= Matrix4.CreateRotationX(MathHelper.DegreesToRadians(tiltPitch));
tilt *= Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(tiltYaw));
/*// show tilt direction
* GL.Color3(Color.Black);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(Vector3.Zero);
* var tiltVec = Vector3.UnitZ;
* tiltVec = Vector3.Transform(tiltVec, tilt);
* tiltVec = Vector3.Multiply(tiltVec, 1000f);
* GL.Vertex3(tiltVec);
* GL.End();*/
}
/*// draw slope normals
* GL.LineWidth(2);
* var colors = new[] { Color.Red, Color.Green, Color.Blue, Color.Yellow, Color.Orange, Color.Black, Color.Purple, Color.SlateBlue, Color.DimGray, Color.White, Color.Teal, Color.Tan };
* for (int i = 0; i < 8; i++) {
* GL.Color3(colors[i]);
*
* const float roll = 25f;
* float syaw = 45f * i;
* var slopeNormal = Vector3.UnitZ;
* slopeNormal = Vector3.Transform(slopeNormal, Matrix4.CreateRotationX(MathHelper.DegreesToRadians(roll)));
* slopeNormal = Vector3.Transform(slopeNormal, Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(syaw)));
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, 0, 0);
* GL.Vertex3(Vector3.Multiply(slopeNormal, 1000f));
* GL.End();
* }*/
// object rotation around Z
float direction = (obj is OwnableObject) ? (obj as OwnableObject).Direction : 0;
float objectRotation = 90 - direction / 256f * 360f - tiltYaw; // convert game rotation to world degrees
Matrix4 @object = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(objectRotation)) * tilt; // object facing
// art.ini TurretOffset value positions some voxel parts over our x-axis
@object = Matrix4.CreateTranslation(0.18f * props.TurretVoxelOffset, 0, 0) * @object;
GL.MultMatrix(ref @object);
// DrawAxes();
float pitch = MathHelper.DegreesToRadians(210);
float yaw = MathHelper.DegreesToRadians(120);
/*// helps to find good pitch/yaw
* // direction of light vector given by pitch & yaw
* for (int i = 0; i < 360; i += 30) {
* for (int j = 0; j < 360; j += 30) {
* GL.Color3(colors[i / 30]);
* var shadowTransform2 =
* Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(i))
* Matrix4.CreateRotationY(MathHelper.DegreesToRadians(j));
* GL.LineWidth(2);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, 0, 0);
* GL.Vertex3(Vector3.Multiply(ExtractRotationVector(ToOpenGL(Matrix4.Invert(world * shadowTransform2))), 100f));
* GL.End();
* }
* }*/
var shadowTransform = Matrix4.CreateRotationZ(pitch) * Matrix4.CreateRotationY(yaw);
// clear shadowbuf
var shadBuf = _surface.GetShadows();
Array.Clear(shadBuf, 0, shadBuf.Length);
foreach (var section in vxl.Sections)
{
GL.PushMatrix();
var frameRot = hva.LoadGLMatrix(section.Index);
frameRot.M41 *= section.HVAMultiplier * section.ScaleX;
frameRot.M42 *= section.HVAMultiplier * section.ScaleY;
frameRot.M43 *= section.HVAMultiplier * section.ScaleZ;
var frameTransl = Matrix4.CreateTranslation(section.MinBounds);
var frame = frameTransl * frameRot;
GL.MultMatrix(ref frame);
var shadowScale = Matrix4.Scale(0.5f);
//var shadowTilt = null;
var shadowToScreen = frameTransl * shadowScale * frameRot * (@object * world) * trans * lookat;
// undo world transformations on light direction
var v = @object * world * frame * shadowTransform;
var lightDirection = (v.Determinant != 0.0) ? ExtractRotationVector(ToOpenGL(Matrix4.Invert(v))) : Vector3.Zero;
// draw line in direction light comes from
/*GL.Color3(Color.Red);
* GL.LineWidth(4f);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(0, 0, 0);
* GL.Vertex3(Vector3.Multiply(lightDirection, 100f));
* GL.End();*/
GL.Begin(BeginMode.Quads);
for (uint x = 0; x != section.SizeX; x++)
{
for (uint y = 0; y != section.SizeY; y++)
{
foreach (VxlFile.Voxel vx in section.Spans[x, y].Voxels)
{
Color color = obj.Palette.Colors[vx.ColorIndex];
Vector3 normal = section.GetNormal(vx.NormalIndex);
// shader function taken from https://github.com/OpenRA/OpenRA/blob/bleed/cg/vxl.fx
// thanks to pchote for a LOT of help getting it right
Vector3 colorMult = Vector3.Add(Ambient, Diffuse * Math.Max(Vector3.Dot(normal, lightDirection), 0f));
GL.Color3(
(byte)Math.Min(255, color.R * colorMult.X),
(byte)Math.Min(255, color.G * colorMult.Y),
(byte)Math.Min(255, color.B * colorMult.Z));
Vector3 vxlPos = Vector3.Multiply(new Vector3(x, y, vx.Z), section.Scale);
RenderVoxel(vxlPos);
var shadpos = new Vector3(x, y, 0);
var screenPos = Vector3.Transform(shadpos, shadowToScreen);
screenPos = Vector3.Transform(screenPos, persp);
screenPos.X /= screenPos.Z;
screenPos.Y /= screenPos.Z;
screenPos.X = (screenPos.X + 1) * _surface.Width / 2;
screenPos.Y = (screenPos.Y + 1) * _surface.Height / 2;
if (0 <= screenPos.X && screenPos.X < _surface.Width && 0 <= screenPos.Y && screenPos.Y < _surface.Height)
{
shadBuf[(int)screenPos.X + (_surface.Height - 1 - (int)screenPos.Y) * _surface.Width] = true;
}
/* draw line in normal direction
* if (r.Next(100) == 4) {
* float m = Math.Max(Vector3.Dot(normal, lightDirection), 0f);
* GL.Color3(m, m, m);
* GL.LineWidth(1);
* GL.Begin(BeginMode.Lines);
* GL.Vertex3(new Vector3(x, y, vx.Z));
* GL.Vertex3(new Vector3(x, y, vx.Z) + Vector3.Multiply(normal, 100f));
* GL.End();
* }*/
}
}
}
GL.End();
GL.PopMatrix();
}
// read pixels back to surface
GL.ReadPixels(0, 0, _surface.BitmapData.Width, _surface.BitmapData.Height, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, _surface.BitmapData.Scan0);
return(_surface);
}
public static Rectangle GetBounds(GameObject obj, VxlFile vxl, HvaFile hva, DrawProperties props) {
vxl.Initialize();
hva.Initialize();
float direction = (obj is OwnableObject) ? (obj as OwnableObject).Direction : 0;
float objectRotation = 45f - direction / 256f * 360f; // convert game rotation to world degrees
var world = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(60));
world = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(objectRotation)) * world; // object facing
world = Matrix4.Scale(0.25f, 0.25f, 0.25f) * world;
// art.ini TurretOffset value positions some voxel parts over our x-axis
world = Matrix4.CreateTranslation(0.18f * props.TurretVoxelOffset, 0, 0) * world;
var camera = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(30), 1f, 1, 100);
world = world * camera;
Rectangle ret = Rectangle.Empty;
foreach (var section in vxl.Sections) {
var frameRot = hva.LoadGLMatrix(section.Index);
frameRot.M41 *= section.HVAMultiplier * section.ScaleX;
frameRot.M42 *= section.HVAMultiplier * section.ScaleY;
frameRot.M43 *= section.HVAMultiplier * section.ScaleZ;
var minbounds = new Vector3(section.MinBounds);
if (props.HasShadow)
minbounds.Z = -100;
var frameTransl = Matrix4.CreateTranslation(minbounds);
var frame = frameTransl * frameRot * world;
// floor rect of the bounding box
Vector3 floorTopLeft = new Vector3(0, 0, 0);
Vector3 floorTopRight = new Vector3(section.SpanX, 0, 0);
Vector3 floorBottomRight = new Vector3(section.SpanX, section.SpanY, 0);
Vector3 floorBottomLeft = new Vector3(0, section.SpanY, 0);
// ceil rect of the bounding box
Vector3 ceilTopLeft = new Vector3(0, 0, section.SpanZ);
Vector3 ceilTopRight = new Vector3(section.SpanX, 0, section.SpanZ);
Vector3 ceilBottomRight = new Vector3(section.SpanX, section.SpanY, section.SpanZ);
Vector3 ceilBottomLeft = new Vector3(0, section.SpanY, section.SpanZ);
// apply transformations
floorTopLeft = Vector3.Transform(floorTopLeft, frame);
floorTopRight = Vector3.Transform(floorTopRight, frame);
floorBottomRight = Vector3.Transform(floorBottomRight, frame);
floorBottomLeft = Vector3.Transform(floorBottomLeft, frame);
ceilTopLeft = Vector3.Transform(ceilTopLeft, frame);
ceilTopRight = Vector3.Transform(ceilTopRight, frame);
ceilBottomRight = Vector3.Transform(ceilBottomRight, frame);
ceilBottomLeft = Vector3.Transform(ceilBottomLeft, frame);
int FminX = (int)Math.Floor(Math.Min(Math.Min(Math.Min(floorTopLeft.X, floorTopRight.X), floorBottomRight.X), floorBottomLeft.X));
int FmaxX = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(floorTopLeft.X, floorTopRight.X), floorBottomRight.X), floorBottomLeft.X));
int FminY = (int)Math.Floor(Math.Min(Math.Min(Math.Min(floorTopLeft.Y, floorTopRight.Y), floorBottomRight.Y), floorBottomLeft.Y));
int FmaxY = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(floorTopLeft.Y, floorTopRight.Y), floorBottomRight.Y), floorBottomLeft.Y));
int TminX = (int)Math.Floor(Math.Min(Math.Min(Math.Min(ceilTopLeft.X, ceilTopRight.X), ceilBottomRight.X), ceilBottomLeft.X));
int TmaxX = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(ceilTopLeft.X, ceilTopRight.X), ceilBottomRight.X), ceilBottomLeft.X));
int TminY = (int)Math.Floor(Math.Min(Math.Min(Math.Min(ceilTopLeft.Y, ceilTopRight.Y), ceilBottomRight.Y), ceilBottomLeft.Y));
int TmaxY = (int)Math.Ceiling(Math.Max(Math.Max(Math.Max(ceilTopLeft.Y, ceilTopRight.Y), ceilBottomRight.Y), ceilBottomLeft.Y));
int minX = Math.Min(FminX, TminX);
int maxX = Math.Max(FmaxX, TmaxX);
int minY = Math.Min(FminY, TminY);
int maxY = Math.Max(FmaxY, TmaxY);
ret = Rectangle.Union(ret, Rectangle.FromLTRB(minX, minY, maxX, maxY));
}
// return new Rectangle(-ret.Width / 2, -ret.Height / 2, ret.Width, ret.Height);
return ret;
}
public DrawingSurface Render(VxlFile vxl, HvaFile hva, GameObject obj, DrawProperties props) {
if (!_isInit) Initialize();
if (!_canRender) {
Logger.Warn("Not rendering {0} because no OpenGL context could be obtained", vxl.FileName);
return null;
}
Logger.Debug("Rendering voxel {0}", vxl.FileName);
vxl.Initialize();
hva.Initialize();
GL.Viewport(0, 0, _surface.BitmapData.Width, _surface.BitmapData.Height);
GL.Clear(ClearBufferMask.DepthBufferBit | ClearBufferMask.ColorBufferBit);
// RA2 uses dimetric projection with camera elevated 30° off the ground
GL.MatrixMode(MatrixMode.Projection);
var persp = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(30), _surface.BitmapData.Width / (float)_surface.BitmapData.Height, 1, _surface.BitmapData.Height);
GL.LoadMatrix(ref persp);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
var lookat = Matrix4.LookAt(0, 0, -10, 0, 0, 0, 0, 1, 0);
GL.MultMatrix(ref lookat);
var trans = Matrix4.CreateTranslation(0, 0, 10);
GL.MultMatrix(ref trans);
// align and zoom
var world = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(60));
world = Matrix4.CreateRotationY(MathHelper.DegreesToRadians(180)) * world;
world = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(-45)) * world;
world = Matrix4.Scale(0.028f, 0.028f, 0.028f) * world;
GL.MultMatrix(ref world);
// DrawAxes();
// determine tilt vectors
Matrix4 tilt;
int tiltPitch, tiltYaw;
if (true) {
int ramp = (obj.Tile.Drawable as TileDrawable).GetTileImage(obj.Tile).RampType;
if (ramp == 0 || ramp >= 17) {
tiltPitch = tiltYaw = 0;
}
else if (ramp <= 4) {
// screen-diagonal facings (perpendicular to axes)
tiltPitch = 25;
tiltYaw = -90 * ramp;
}
else {
// world-diagonal facings (perpendicular to screen)
tiltPitch = 25;
tiltYaw = 225 - 90 * ((ramp - 1) % 4);
}
tilt = Matrix4.CreateRotationX(MathHelper.DegreesToRadians(tiltPitch));
tilt *= Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(tiltYaw));
/*// show tilt direction
GL.Color3(Color.Black);
GL.Begin(BeginMode.Lines);
GL.Vertex3(Vector3.Zero);
var tiltVec = Vector3.UnitZ;
tiltVec = Vector3.Transform(tiltVec, tilt);
tiltVec = Vector3.Multiply(tiltVec, 1000f);
GL.Vertex3(tiltVec);
GL.End();*/
}
/*// draw slope normals
GL.LineWidth(2);
var colors = new[] { Color.Red, Color.Green, Color.Blue, Color.Yellow, Color.Orange, Color.Black, Color.Purple, Color.SlateBlue, Color.DimGray, Color.White, Color.Teal, Color.Tan };
for (int i = 0; i < 8; i++) {
GL.Color3(colors[i]);
const float roll = 25f;
float syaw = 45f * i;
var slopeNormal = Vector3.UnitZ;
slopeNormal = Vector3.Transform(slopeNormal, Matrix4.CreateRotationX(MathHelper.DegreesToRadians(roll)));
slopeNormal = Vector3.Transform(slopeNormal, Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(syaw)));
GL.Begin(BeginMode.Lines);
GL.Vertex3(0, 0, 0);
GL.Vertex3(Vector3.Multiply(slopeNormal, 1000f));
GL.End();
}*/
// object rotation around Z
float direction = (obj is OwnableObject) ? (obj as OwnableObject).Direction : 0;
float objectRotation = 90 - direction / 256f * 360f - tiltYaw; // convert game rotation to world degrees
Matrix4 @object = Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(objectRotation)) * tilt; // object facing
// art.ini TurretOffset value positions some voxel parts over our x-axis
@object = Matrix4.CreateTranslation(0.18f * props.TurretVoxelOffset, 0, 0) * @object;
GL.MultMatrix(ref @object);
// DrawAxes();
float pitch = MathHelper.DegreesToRadians(210);
float yaw = MathHelper.DegreesToRadians(120);
/*// helps to find good pitch/yaw
// direction of light vector given by pitch & yaw
for (int i = 0; i < 360; i += 30) {
for (int j = 0; j < 360; j += 30) {
GL.Color3(colors[i / 30]);
var shadowTransform2 =
Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(i))
* Matrix4.CreateRotationY(MathHelper.DegreesToRadians(j));
GL.LineWidth(2);
GL.Begin(BeginMode.Lines);
GL.Vertex3(0, 0, 0);
GL.Vertex3(Vector3.Multiply(ExtractRotationVector(ToOpenGL(Matrix4.Invert(world * shadowTransform2))), 100f));
GL.End();
}
}*/
var shadowTransform = Matrix4.CreateRotationZ(pitch) * Matrix4.CreateRotationY(yaw);
// clear shadowbuf
var shadBuf = _surface.GetShadows();
Array.Clear(shadBuf, 0, shadBuf.Length);
foreach (var section in vxl.Sections) {
GL.PushMatrix();
var frameRot = hva.LoadGLMatrix(section.Index);
frameRot.M41 *= section.HVAMultiplier * section.ScaleX;
frameRot.M42 *= section.HVAMultiplier * section.ScaleY;
frameRot.M43 *= section.HVAMultiplier * section.ScaleZ;
var frameTransl = Matrix4.CreateTranslation(section.MinBounds);
var frame = frameTransl * frameRot;
GL.MultMatrix(ref frame);
var shadowScale = Matrix4.Scale(0.5f);
//var shadowTilt = null;
var shadowToScreen = frameTransl * shadowScale * frameRot * (@object * world) * trans * lookat;
// undo world transformations on light direction
var lightDirection = ExtractRotationVector(ToOpenGL(Matrix4.Invert((@object * world) * frame * shadowTransform)));
// draw line in direction light comes from
/*GL.Color3(Color.Red);
GL.LineWidth(4f);
GL.Begin(BeginMode.Lines);
GL.Vertex3(0, 0, 0);
GL.Vertex3(Vector3.Multiply(lightDirection, 100f));
GL.End();*/
GL.Begin(BeginMode.Quads);
for (uint x = 0; x != section.SizeX; x++) {
for (uint y = 0; y != section.SizeY; y++) {
foreach (VxlFile.Voxel vx in section.Spans[x, y].Voxels) {
Color color = obj.Palette.Colors[vx.ColorIndex];
Vector3 normal = section.GetNormal(vx.NormalIndex);
// shader function taken from https://github.com/OpenRA/OpenRA/blob/bleed/cg/vxl.fx
// thanks to pchote for a LOT of help getting it right
Vector3 colorMult = Vector3.Add(Ambient, Diffuse * Math.Max(Vector3.Dot(normal, lightDirection), 0f));
GL.Color3(
(byte)Math.Min(255, color.R * colorMult.X),
(byte)Math.Min(255, color.G * colorMult.Y),
(byte)Math.Min(255, color.B * colorMult.Z));
Vector3 vxlPos = Vector3.Multiply(new Vector3(x, y, vx.Z), section.Scale);
RenderVoxel(vxlPos);
var shadpos = new Vector3(x, y, 0);
var screenPos = Vector3.Transform(shadpos, shadowToScreen);
screenPos = Vector3.Transform(screenPos, persp);
screenPos.X /= screenPos.Z;
screenPos.Y /= screenPos.Z;
screenPos.X = (screenPos.X + 1) * _surface.Width / 2;
screenPos.Y = (screenPos.Y + 1) * _surface.Height / 2;
if (0 <= screenPos.X && screenPos.X < _surface.Width && 0 <= screenPos.Y && screenPos.Y < _surface.Height)
shadBuf[(int)screenPos.X + (_surface.Height - 1 - (int)screenPos.Y) * _surface.Width] = true;
/* draw line in normal direction
if (r.Next(100) == 4) {
float m = Math.Max(Vector3.Dot(normal, lightDirection), 0f);
GL.Color3(m, m, m);
GL.LineWidth(1);
GL.Begin(BeginMode.Lines);
GL.Vertex3(new Vector3(x, y, vx.Z));
GL.Vertex3(new Vector3(x, y, vx.Z) + Vector3.Multiply(normal, 100f));
GL.End();
}*/
}
}
}
GL.End();
GL.PopMatrix();
}
// read pixels back to surface
GL.ReadPixels(0, 0, _surface.BitmapData.Width, _surface.BitmapData.Height, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, _surface.BitmapData.Scan0);
return _surface;
}
public unsafe void Draw(ShpFile shp, GameObject obj, Drawable dr, DrawProperties props, DrawingSurface ds, int transLucency = 0)
{
shp.Initialize();
Palette p = props.PaletteOverride ?? obj.Palette;
int frameIndex = props.FrameDecider(obj);
if (obj.Drawable.IsActualWall)
{
frameIndex = ((StructureObject)obj).WallBuildingFrame;
}
frameIndex = DecideFrameIndex(frameIndex, shp.NumImages);
if (frameIndex >= shp.Images.Count)
{
return;
}
var img = shp.GetImage(frameIndex);
var imgData = img.GetImageData();
if (imgData == null || img.Width * img.Height != imgData.Length)
{
return;
}
Point offset = props.GetOffset(obj);
offset.X += obj.Tile.Dx * _config.TileWidth / 2 - shp.Width / 2 + img.X;
offset.Y += (obj.Tile.Dy - obj.Tile.Z) * _config.TileHeight / 2 - shp.Height / 2 + img.Y;
Logger.Trace("Drawing SHP file {0} (Frame {1}) at ({2},{3})", shp.FileName, frameIndex, offset.X, offset.Y);
int stride = ds.BitmapData.Stride;
var heightBuffer = ds.GetHeightBuffer();
var zBuffer = ds.GetZBuffer();
var w_low = (byte *)ds.BitmapData.Scan0;
byte *w_high = (byte *)ds.BitmapData.Scan0 + stride * ds.BitmapData.Height;
byte *w = (byte *)ds.BitmapData.Scan0 + offset.X * 3 + stride * offset.Y;
// clip to 25-50-75-100
transLucency = (transLucency / 25) * 25;
float a = transLucency / 100f;
float b = 1 - a;
int rIdx = 0; // image pixel index
int zIdx = offset.X + offset.Y * ds.Width; // z-buffer pixel index
short hBufVal = (short)(obj.Tile.Z * _config.TileHeight / 2);
short zOffset = (short)((obj.BottomTile.Rx + obj.BottomTile.Ry) * _config.TileHeight / 2 + props.ZAdjust);
if (!dr.Flat)
{
hBufVal += shp.Height;
}
for (int y = 0; y < img.Height; y++)
{
if (offset.Y + y < 0)
{
w += stride;
rIdx += img.Width;
zIdx += ds.Width;
continue; // out of bounds
}
for (int x = 0; x < img.Width; x++)
{
byte paletteValue = imgData[rIdx];
short zshapeOffset = obj is StructureObject ? (GetBuildingZ(x, y, shp, img, obj)) : (short)0;
if (paletteValue != 0)
{
short zBufVal = zOffset;
if (dr.Flat)
{
zBufVal += (short)(y - img.Height);
}
else if (dr.IsBuildingPart)
{
// nonflat building
zBufVal += zshapeOffset;
}
else
{
zBufVal += img.Height;
}
if (w_low <= w && w < w_high /*&& zBufVal >= zBuffer[zIdx]*/)
{
if (transLucency != 0)
{
*(w + 0) = (byte)(a * *(w + 0) + b * p.Colors[paletteValue].B);
*(w + 1) = (byte)(a * *(w + 1) + b * p.Colors[paletteValue].G);
*(w + 2) = (byte)(a * *(w + 2) + b * p.Colors[paletteValue].R);
}
else
{
*(w + 0) = p.Colors[paletteValue].B;
*(w + 1) = p.Colors[paletteValue].G;
*(w + 2) = p.Colors[paletteValue].R;
//var pal = Theater.Active.GetPalettes().UnitPalette.Colors;
//*(w + 0) = pal[zshapeOffset].R;
//*(w + 1) = pal[zshapeOffset].G;
//*(w + 2) = pal[zshapeOffset].B;
}
zBuffer[zIdx] = zBufVal;
heightBuffer[zIdx] = hBufVal;
}
}
//else {
// *(w + 0) = 0;
// *(w + 1) = 0;
// *(w + 2) = 255;
//}
// Up to the next pixel
rIdx++;
zIdx++;
w += 3;
}
w += stride - 3 * img.Width;
zIdx += ds.Width - img.Width;
}
}
public unsafe void DrawShadow(GameObject obj, ShpFile shp, DrawProperties props, DrawingSurface ds)
{
shp.Initialize();
int frameIndex = props.FrameDecider(obj);
if (obj.Drawable.IsActualWall)
{
frameIndex = ((StructureObject)obj).WallBuildingFrame;
}
frameIndex = DecideFrameIndex(frameIndex, shp.NumImages);
frameIndex += shp.Images.Count / 2; // latter half are shadow Images
if (frameIndex >= shp.Images.Count)
{
return;
}
var img = shp.GetImage(frameIndex);
var imgData = img.GetImageData();
if (imgData == null || img.Width * img.Height != imgData.Length)
{
return;
}
Point offset = props.GetShadowOffset(obj);
offset.X += obj.Tile.Dx * _config.TileWidth / 2 - shp.Width / 2 + img.X;
offset.Y += (obj.Tile.Dy - obj.Tile.Z) * _config.TileHeight / 2 - shp.Height / 2 + img.Y;
Logger.Trace("Drawing SHP shadow {0} (frame {1}) at ({2},{3})", shp.FileName, frameIndex, offset.X, offset.Y);
int stride = ds.BitmapData.Stride;
var shadows = ds.GetShadows();
var zBuffer = ds.GetZBuffer();
var heightBuffer = ds.GetHeightBuffer();
var w_low = (byte *)ds.BitmapData.Scan0;
byte *w_high = (byte *)ds.BitmapData.Scan0 + stride * ds.BitmapData.Height;
byte *w = (byte *)ds.BitmapData.Scan0 + offset.X * 3 + stride * offset.Y;
int zIdx = offset.X + offset.Y * ds.Width;
int rIdx = 0;
short zOffset = (short)((obj.Tile.Rx + obj.Tile.Ry) * _config.TileHeight / 2 - shp.Height / 2 + img.Y);
int castHeight = obj.Tile.Z * _config.TileHeight / 2;
if (obj.Drawable != null && !obj.Drawable.Flat)
{
castHeight += shp.Height;
castHeight += obj.Drawable.TileElevation * _config.TileHeight / 2;
}
for (int y = 0; y < img.Height; y++)
{
if (offset.Y + y < 0)
{
w += stride;
rIdx += img.Width;
zIdx += ds.Width;
continue; // out of bounds
}
short zBufVal = zOffset;
if (obj.Drawable.Flat)
{
zBufVal += (short)y;
}
else
{
zBufVal += img.Height;
}
for (int x = 0; x < img.Width; x++)
{
if (0 <= offset.X + x && offset.X + x < ds.Width && 0 <= y + offset.Y && y + offset.Y < ds.Height &&
imgData[rIdx] != 0 && !shadows[zIdx] &&
// zBufVal >= zBuffer[zIdx] &&
castHeight >= heightBuffer[zIdx])
{
*(w + 0) /= 2;
*(w + 1) /= 2;
*(w + 2) /= 2;
shadows[zIdx] = true;
}
// Up to the next pixel
rIdx++;
zIdx++;
w += 3;
}
w += stride - 3 * img.Width; // ... and if we're no more on the same row,
zIdx += ds.Width - img.Width;
// adjust the writing pointer accordingy
}
}
private static byte GetBuildingZ(int x, int y, ShpFile shp, ShpFile.ShpImage img, GameObject obj, DrawProperties props)
{
if (BuildingZ == null)
{
BuildingZ = VFS.Open <ShpFile>("buildngz.shp");
BuildingZ.Initialize();
}
var zImg = BuildingZ.GetImage(0);
byte[] zData = zImg.GetImageData();
// center x
x += zImg.Width / 2;
x += obj.Drawable.Foundation.Width * Drawable.TileHeight / 2;
// align y
y += zImg.Height - shp.Height;
// y += props.ZAdjust;
return(zData[y * zImg.Width + x]);
}
unsafe public static void Draw(ShpFile shp, GameObject obj, Drawable dr, DrawProperties props, DrawingSurface ds, int transLucency = 0) {
shp.Initialize();
int frameIndex = props.FrameDecider(obj);
Palette p = props.PaletteOverride ?? obj.Palette;
frameIndex = DecideFrameIndex(frameIndex, shp.NumImages);
if (frameIndex >= shp.Images.Count)
return;
var img = shp.GetImage(frameIndex);
var imgData = img.GetImageData();
if (imgData == null || img.Width * img.Height != imgData.Length)
return;
Point offset = props.GetOffset(obj);
offset.X += obj.Tile.Dx * Drawable.TileWidth / 2 - shp.Width / 2 + img.X;
offset.Y += (obj.Tile.Dy - obj.Tile.Z) * Drawable.TileHeight / 2 - shp.Height / 2 + img.Y;
Logger.Trace("Drawing SHP file {0} (Frame {1}) at ({2},{3})", shp.FileName, frameIndex, offset.X, offset.Y);
int stride = ds.BitmapData.Stride;
var heightBuffer = ds.GetHeightBuffer();
var zBuffer = ds.GetZBuffer();
var w_low = (byte*)ds.BitmapData.Scan0;
byte* w_high = (byte*)ds.BitmapData.Scan0 + stride * ds.BitmapData.Height;
byte* w = (byte*)ds.BitmapData.Scan0 + offset.X * 3 + stride * offset.Y;
// clip to 25-50-75-100
transLucency = (transLucency / 25) * 25;
float a = transLucency / 100f;
float b = 1 - a;
int rIdx = 0; // image pixel index
int zIdx = offset.X + offset.Y * ds.Width; // z-buffer pixel index
short hBufVal = (short)(obj.Tile.Z * Drawable.TileHeight / 2);
short zOffset = (short)((obj.BottomTile.Rx + obj.BottomTile.Ry) * Drawable.TileHeight / 2);
if (!dr.Flat)
hBufVal += shp.Height;
for (int y = 0; y < img.Height; y++) {
if (offset.Y + y < 0) {
w += stride;
rIdx += img.Width;
zIdx += ds.Width;
continue; // out of bounds
}
for (int x = 0; x < img.Width; x++) {
byte paletteValue = imgData[rIdx];
short zshapeOffset = obj is StructureObject ? (GetBuildingZ(x, y, shp, img, obj)) : (short)0;
if (paletteValue != 0) {
short zBufVal = zOffset;
if (dr.Flat)
zBufVal += (short)(y - img.Height);
else if (dr.IsBuildingPart) {
// nonflat building
zBufVal += zshapeOffset;
}
else
zBufVal += img.Height;
if (w_low <= w && w < w_high /*&& zBufVal >= zBuffer[zIdx]*/) {
if (transLucency != 0) {
*(w + 0) = (byte)(a * *(w + 0) + b * p.Colors[paletteValue].B);
*(w + 1) = (byte)(a * *(w + 1) + b * p.Colors[paletteValue].G);
*(w + 2) = (byte)(a * *(w + 2) + b * p.Colors[paletteValue].R);
}
else {
*(w + 0) = p.Colors[paletteValue].B;
*(w + 1) = p.Colors[paletteValue].G;
*(w + 2) = p.Colors[paletteValue].R;
//var pal = Theater.Active.GetPalettes().UnitPalette.Colors;
//*(w + 0) = pal[zshapeOffset].R;
//*(w + 1) = pal[zshapeOffset].G;
//*(w + 2) = pal[zshapeOffset].B;
}
zBuffer[zIdx] = zBufVal;
heightBuffer[zIdx] = hBufVal;
}
}
//else {
// *(w + 0) = 0;
// *(w + 1) = 0;
// *(w + 2) = 255;
//}
// Up to the next pixel
rIdx++;
zIdx++;
w += 3;
}
w += stride - 3 * img.Width;
zIdx += ds.Width - img.Width;
}
}
unsafe public static void DrawAlpha(GameObject obj, ShpFile shp, DrawProperties props, DrawingSurface ds) {
shp.Initialize();
// Change originally implemented by Starkku: Ares supports multiframe AlphaImages, based on frame count
// the direction the unit it facing.
int frameIndex = props.FrameDecider(obj);
var img = shp.GetImage(frameIndex);
var imgData = img.GetImageData();
var c_px = (uint)(img.Width * img.Height);
if (c_px <= 0 || img.Width < 0 || img.Height < 0 || frameIndex > shp.NumImages)
return;
Point offset = props.GetOffset(obj);
offset.X += obj.Tile.Dx * Drawable.TileWidth / 2;
offset.Y += (obj.Tile.Dy - obj.Tile.Z) * Drawable.TileHeight / 2;
Logger.Trace("Drawing AlphaImage SHP file {0} (frame {1}) at ({2},{3})", shp.FileName, frameIndex, offset.X, offset.Y);
int stride = ds.BitmapData.Stride;
var w_low = (byte*)ds.BitmapData.Scan0;
byte* w_high = (byte*)ds.BitmapData.Scan0 + stride * ds.BitmapData.Height;
int dx = offset.X + Drawable.TileWidth / 2 - shp.Width / 2 + img.X,
dy = offset.Y - shp.Height / 2 + img.Y;
byte* w = (byte*)ds.BitmapData.Scan0 + dx * 3 + stride * dy;
short zOffset = (short)((obj.Tile.Rx + obj.Tile.Ry) * Drawable.TileHeight / 2 - shp.Height / 2 + img.Y);
int rIdx = 0;
for (int y = 0; y < img.Height; y++) {
for (int x = 0; x < img.Width; x++) {
if (imgData[rIdx] != 0 && w_low <= w && w < w_high) {
float mult = imgData[rIdx] / 127.0f;
*(w + 0) = limit(mult, *(w + 0));
*(w + 1) = limit(mult, *(w + 1));
*(w + 2) = limit(mult, *(w + 2));
}
// Up to the next pixel
rIdx++;
w += 3;
}
w += stride - 3 * img.Width; // ... and if we're no more on the same row,
// adjust the writing pointer accordingy
}
}
unsafe public static void DrawShadow(GameObject obj, ShpFile shp, DrawProperties props, DrawingSurface ds) {
int frameIndex = props.FrameDecider(obj);
frameIndex = DecideFrameIndex(frameIndex, shp.NumImages);
frameIndex += shp.Images.Count / 2; // latter half are shadow Images
if (frameIndex >= shp.Images.Count)
return;
var img = shp.GetImage(frameIndex);
var imgData = img.GetImageData();
if (imgData == null || img.Width * img.Height != imgData.Length)
return;
Point offset = props.GetShadowOffset(obj);
offset.X += obj.Tile.Dx * Drawable.TileWidth / 2 - shp.Width / 2 + img.X;
offset.Y += (obj.Tile.Dy - obj.Tile.Z) * Drawable.TileHeight / 2 - shp.Height / 2 + img.Y;
Logger.Trace("Drawing SHP shadow {0} (frame {1}) at ({2},{3})", shp.FileName, frameIndex, offset.X, offset.Y);
int stride = ds.BitmapData.Stride;
var shadows = ds.GetShadows();
var zBuffer = ds.GetZBuffer();
var heightBuffer = ds.GetHeightBuffer();
var w_low = (byte*)ds.BitmapData.Scan0;
byte* w_high = (byte*)ds.BitmapData.Scan0 + stride * ds.BitmapData.Height;
byte* w = (byte*)ds.BitmapData.Scan0 + offset.X * 3 + stride * offset.Y;
int zIdx = offset.X + offset.Y * ds.Width;
int rIdx = 0;
short zOffset = (short)((obj.Tile.Rx + obj.Tile.Ry) * Drawable.TileHeight / 2 - shp.Height / 2 + img.Y);
int castHeight = obj.Tile.Z * Drawable.TileHeight / 2;
if (obj.Drawable != null && !obj.Drawable.Flat) {
castHeight += shp.Height;
castHeight += obj.Drawable.TileElevation * Drawable.TileHeight / 2;
}
for (int y = 0; y < img.Height; y++) {
if (offset.Y + y < 0) {
w += stride;
rIdx += img.Width;
zIdx += ds.Width;
continue; // out of bounds
}
short zBufVal = zOffset;
if (obj.Drawable.Flat)
zBufVal += (short)y;
else
zBufVal += img.Height;
for (int x = 0; x < img.Width; x++) {
if (w_low <= w && w < w_high && imgData[rIdx] != 0 && !shadows[zIdx]
//&& zBufVal >= zBuffer[zIdx]
&& castHeight >= heightBuffer[zIdx]
) {
*(w + 0) /= 2;
*(w + 1) /= 2;
*(w + 2) /= 2;
shadows[zIdx] = true;
}
// Up to the next pixel
rIdx++;
zIdx++;
w += 3;
}
w += stride - 3 * img.Width; // ... and if we're no more on the same row,
zIdx += ds.Width - img.Width;
// adjust the writing pointer accordingy
}
}
private AnimDrawable LoadExtraImage(string extraImage, DrawProperties inheritProps) {
string animSection = Art.ReadString(extraImage);
if (animSection == "") return null;
IniFile.IniSection extraRules = OwnerCollection.Rules.GetOrCreateSection(animSection);
IniFile.IniSection extraArt = OwnerCollection.Art.GetOrCreateSection(animSection);
var anim = new AnimDrawable(extraRules, extraArt);
anim.OwnerCollection = OwnerCollection;
anim.LoadFromRules();
anim.NewTheater = this.NewTheater;
if (extraArt.HasKey("YSortAdjust") || Art.HasKey(extraImage + "YSort") ||
extraArt.HasKey("ZAdjust") || Art.HasKey(extraImage + "ZAdjust"))
anim.Props.SortIndex = extraArt.ReadInt("YSortAdjust", Art.ReadInt(extraImage + "YSort"))
- extraArt.ReadInt("ZAdjust", Art.ReadInt(extraImage + "ZAdjust"));
else
anim.Props.SortIndex = inheritProps.SortIndex;
if (Art.HasKey(extraImage + "X") || Art.HasKey(extraImage + "Y"))
anim.Props.Offset = this.Props.Offset + new Size(Art.ReadInt(extraImage + "X"), Art.ReadInt(extraImage + "Y"));
else
anim.Props.Offset = inheritProps.Offset;
anim.Props.ZAdjust = Art.ReadInt(extraImage + "ZAdjust");
anim.IsBuildingPart = true;
anim.Shp = VFS.Open<ShpFile>(anim.GetFilename());
return anim;
}
