diff options
Diffstat (limited to 'engines')
| -rw-r--r-- | engines/titanic/star_control/base_star.cpp | 53 |
1 files changed, 45 insertions, 8 deletions
diff --git a/engines/titanic/star_control/base_star.cpp b/engines/titanic/star_control/base_star.cpp index 0652a8b166..fc61eb71ea 100644 --- a/engines/titanic/star_control/base_star.cpp +++ b/engines/titanic/star_control/base_star.cpp @@ -409,17 +409,20 @@ void CBaseStar::draw4(CSurfaceArea *surfaceArea, CStarControlSub12 *sub12, CStar double minVal = threshold - 9216.0; int width1 = surfaceArea->_width - 1; int height1 = surfaceArea->_height - 1; - double *v1Ptr = &_value1, *v2Ptr = &_value2, *v3Ptr = &_value3; - double tempX, tempY, tempZ, total2; + double *v1Ptr = &_value1, *v2Ptr = &_value2, *v3Ptr = &_value3, *v4Ptr = &_value4; + double tempX, tempY, tempZ, total2, sVal; + int xStart, yStart, rgb; + uint16 *pixelP; for (uint idx = 0; idx < _data.size(); ++idx) { const CBaseStarEntry &entry = _data[idx]; const FVector &vector = entry._position; + tempZ = vector._x * sub6._row1._z + vector._y * sub6._row2._z + vector._z * sub6._row3._z + sub6._vector._z; if (tempZ <= minVal) continue; - + tempY = vector._x * sub6._row1._y + vector._y * sub6._row2._y + vector._z * sub6._row3._y + sub6._vector._y; tempX = vector._x * sub6._row1._x + vector._y * sub6._row2._x + vector._z * sub6._row3._x + sub6._vector._x; total2 = tempY * tempY + tempX * tempX + tempZ * tempZ; @@ -433,13 +436,47 @@ void CBaseStar::draw4(CSurfaceArea *surfaceArea, CStarControlSub12 *sub12, CStar if (tempZ <= threshold || total2 >= MAX_VAL) continue; - int xStart = (int)((tempX + *v3Ptr) * *v1Ptr / tempZ + centroid._x); - int yStart = (int)(tempY * *v2Ptr / tempZ + centroid._y); + // First pixel + xStart = (int)((tempX + *v3Ptr) * *v1Ptr / tempZ + centroid._x); + yStart = (int)(tempY * *v2Ptr / tempZ + centroid._y); + if (xStart < 0 || xStart >= width1 || yStart < 0 || yStart >= height1) + continue; + + sVal = sqrt(total2); + sVal = (sVal < 100000.0) ? 1.0 : 1.0 - ((sVal - 100000.0) / 1.0e9); + sVal *= 255.0; + + if (sVal > 255.0) + sVal = 255.0; + if (sVal > 2.0) { + pixelP = (uint16 *)(surfaceArea->_pixelsPtr + surfaceArea->_pitch * yStart + xStart * 2); + rgb = ((int)(sVal - 0.5) & 0xf8) << 8; + + switch (entry._thickness) { + case 0: + *pixelP = rgb; + break; + + case 1: + *pixelP = rgb; + *(pixelP + 1) = rgb; + *(pixelP + surfaceArea->_pitch / 2) = rgb; + *(pixelP + surfaceArea->_pitch / 2 + 1) = rgb; + break; + + default: + break; + } + } + + // Second pixel + xStart = (int)((tempX + *v4Ptr) * *v1Ptr / tempZ + centroid._x); + yStart = (int)((tempY * *v2Ptr) / tempZ + centroid._y); if (xStart < 0 || xStart >= width1 || yStart < 0 || yStart >= height1) continue; - double sVal = sqrt(total2); + sVal = sqrt(total2); sVal = (sVal < 100000.0) ? 1.0 : 1.0 - ((sVal - 100000.0) / 1.0e9); sVal *= 255.0; @@ -447,8 +484,8 @@ void CBaseStar::draw4(CSurfaceArea *surfaceArea, CStarControlSub12 *sub12, CStar sVal = 255.0; if (sVal > 2.0) { - uint16 *pixelP = (uint16 *)(surfaceArea->_pixelsPtr + surfaceArea->_pitch * yStart + xStart * 2); - int rgb = ((int)(sVal - 0.5) & 0xf8) << 8; + pixelP = (uint16 *)(surfaceArea->_pixelsPtr + surfaceArea->_pitch * yStart + xStart * 2); + rgb = ((int)(sVal - 0.5) >> 3) & 0xff; switch (entry._thickness) { case 0: |