diff options
Diffstat (limited to 'engines/avalanche/graphics.cpp')
| -rw-r--r-- | engines/avalanche/graphics.cpp | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/engines/avalanche/graphics.cpp b/engines/avalanche/graphics.cpp index d6e1eac612..aa341f383e 100644 --- a/engines/avalanche/graphics.cpp +++ b/engines/avalanche/graphics.cpp @@ -208,9 +208,46 @@ Common::Point Graphics::drawArc(const ::Graphics::Surface &surface, int16 x, int void Graphics::drawPieSlice(const ::Graphics::Surface &surface, int16 x, int16 y, int16 stAngle, int16 endAngle, uint16 radius, byte color) { while (radius > 0) drawArc(surface, x, y, stAngle, endAngle, radius--, color); - *(byte *)surface.getBasePtr(x + 1, y) = color; } +void Graphics::drawTriangle(const ::Graphics::Surface &surface, Common::Point *p, byte color) { + // Draw the borders with a marking color. + _scrolls.drawLine(p[0].x, p[0].y, p[1].x, p[1].y, 255); + _scrolls.drawLine(p[1].x, p[1].y, p[2].x, p[2].y, 255); + _scrolls.drawLine(p[2].x, p[2].y, p[0].x, p[0].y, 255); + + // Get the top and the bottom of the triangle. + uint16 maxY = p[0].y, minY = p[0].y; + for (byte i = 1; i < 3; i++) { + if (p[i].y < minY) + minY = p[i].y; + if (p[i].y > maxY) + maxY = p[i].y; + } + + // Fill the triangle. + for (uint16 y = minY; y <= maxY; y++) { + uint16 x = 0; + while (*(byte *)_scrolls.getBasePtr(x, y) != 255) + x++; + uint16 minX = x; + uint16 maxX = x; + x++; + while ((*(byte *)_scrolls.getBasePtr(x, y) != 255) && (x != 639)) + x++; + if (x != 639) + maxX = x; + if (minX != maxX) + _scrolls.drawLine(minX, y, maxX, y, color); + } + + // Redraw the borders with the actual color. + _scrolls.drawLine(p[0].x, p[0].y, p[1].x, p[1].y, color); + _scrolls.drawLine(p[1].x, p[1].y, p[2].x, p[2].y, color); + _scrolls.drawLine(p[2].x, p[2].y, p[0].x, p[0].y, color); +} + + ::Graphics::Surface Graphics::loadPictureGraphic(Common::File &file) { |