protected void generateFairingWallSection(MeshGenerator gen, UVArea capUV, UVArea panelUV, float startY, float totalHeight, float maxHeightPerPanel, float boltPanelHeight, float topRadius, float bottomRadius, int sides, float anglePerSide, float startAngle, bool outsideWall)
{
UVArea capUVCopy = new UVArea(capUV);
UVArea panelUVCopy = new UVArea(panelUV);
Vector2 start = new Vector2(bottomRadius, startY);//1.25, 0
Vector2 topOffset = new Vector2(topRadius - bottomRadius, totalHeight);
float vlen = topOffset.magnitude;
float capPercent = boltPanelHeight / vlen;
float fullPanelPercent = maxHeightPerPanel / vlen;
float panelHeight = vlen - boltPanelHeight*2.0f;
float height;
Vector2 pBottom;
Vector2 pTop;
if(boltPanelHeight>0)
{
//generate caps
float capVHeight = capUV.v2 - capUV.v1;
float capVScale = capVHeight / boltPanelHeight;
float capU = (bottomOuterCirc / (float)this.numOfPanels) * capVScale;
capUVCopy.u2 = capU;
//top cap
pBottom = start;
pTop = start + (topOffset * capPercent);
height = pTop.y - pBottom.y;
gen.setUVArea(capUVCopy);
gen.generateCylinderWallSection(centerX, centerZ, pBottom.y, height, pTop.x, pBottom.x, sides, anglePerSide, startAngle, outsideWall);
capU = (topOuterCirc / (float)this.numOfPanels) * capVScale;
capUVCopy.u2 = capU;
//bottom cap
pBottom = start + topOffset - (topOffset*capPercent);
pTop = start + topOffset;
height = pTop.y - pBottom.y;
gen.setUVArea(capUVCopy);
gen.generateCylinderWallSection(centerX, centerZ, pBottom.y, height, pTop.x, pBottom.x, sides, anglePerSide, startAngle, outsideWall);
}
//generate panels
//setup UV scaling for full height panels
float panelVHeight = panelUV.v2 - panelUV.v1;
float panelVScale = panelVHeight / maxHeightPerPanel;
float panelU = (bottomOuterCirc / (float)this.numOfPanels) * panelVScale;
panelUVCopy.u2 = panelU;//scale the u2 coordinate (right-hand extent) by the scale factor, to setup a 1:1 texture ratio across the panel
gen.setUVArea(panelUVCopy);
// modulus operation to get the whole and remainder
float extraPanelHeight = panelHeight / maxHeightPerPanel;
int numOfVerticalSections = (int)extraPanelHeight;
extraPanelHeight-=numOfVerticalSections;
pBottom = start + (topOffset * capPercent);
for(int i = 0; i<numOfVerticalSections; i++)//generate full panels
{
pTop = pBottom + (fullPanelPercent * topOffset);
height = pTop.y - pBottom.y;
gen.generateCylinderWallSection(centerX, centerZ, pBottom.y, height, pTop.x, pBottom.x, sides, anglePerSide, startAngle, outsideWall);
//increment for next full panel
pBottom = pTop;
}
if(extraPanelHeight>0)//gen extra partial panel if needed
{
//gen 'extra' panel
//setup UV scaling for partial height panel, both u and V;
panelVHeight = panelUV.v2 - panelUV.v1;
panelVScale = panelVHeight / maxHeightPerPanel;
panelU = (bottomOuterCirc / (float)this.numOfPanels) * panelVScale;
panelUVCopy.u2 = panelU;//scale u area
float panelV = panelUVCopy.v1 + panelVScale * extraPanelHeight;
panelUVCopy.v2 = panelV;//scale v area
float extraPanelPercent = extraPanelHeight / vlen;
pTop = pBottom + (extraPanelPercent * topOffset);
height = pTop.y - pBottom.y;
gen.setUVArea(panelUVCopy);
gen.generateCylinderWallSection(centerX, centerZ, pBottom.y, height, pTop.x, pBottom.x, sides, anglePerSide, startAngle, outsideWall);
}
}
protected void generateCylinderCollider(MeshGenerator gen, float offsetX, float offsetZ, float startY, float colliderHeight, float topRadius, float bottomRadius, int sides)
{
float anglePerSide = 360.0f / (float)sides;
gen.setUVArea(0,0,1,1);
gen.generateCylinderWallSection(offsetX, offsetZ, startY, colliderHeight, topRadius, bottomRadius, sides, anglePerSide, 0, true);
gen.generateTriangleFan(offsetX, offsetZ, startY, bottomRadius, sides, anglePerSide, 0, false);
gen.generateTriangleFan(offsetX, offsetZ, startY+colliderHeight, topRadius, sides, anglePerSide, 0, true);
}
protected void generateFairingPanel(MeshGenerator gen)
{
//generate outer wall
generateFairingWallSection(gen, outerCap, outerPanel, 0, totalPanelHeight, maxPanelSectionHeight, boltPanelHeight, topOuterRadius, bottomOuterRadius, sidesPerPanel, anglePerSide, startAngle, true);
//generate inner wall
generateFairingWallSection(gen, innerCap, innerPanel, 0, totalPanelHeight, maxPanelSectionHeight, boltPanelHeight, topInnerRadius, bottomInnerRadius, sidesPerPanel, anglePerSide, startAngle, false);
//setup proper scaled UVs to maintain 1:1 aspect ratio for a straight cylinder panel
UVArea innerCapUV = new UVArea (this.innerCap);
float vHeight = innerCapUV.v2 - innerCapUV.v1;
float uScale = vHeight / wallThickness;
innerCapUV.u2 = (bottomOuterCirc / (float)numOfPanels) * uScale;
gen.setUVArea(innerCapUV);
//generate bottom cap
gen.generateCylinderPartialCap(0, -bottomOuterRadius, 0, bottomOuterRadius, bottomInnerRadius, sidesPerPanel, anglePerSide, startAngle, false);
innerCapUV.u2 = (topOuterCirc / (float)numOfPanels) * uScale;
gen.setUVArea(innerCapUV);
//generate top cap
gen.generateCylinderPartialCap(0, -bottomOuterRadius, 0 + totalPanelHeight, topOuterRadius, topInnerRadius, sidesPerPanel, anglePerSide, startAngle, true);
// uScale is already determined by wall thickness
// thus only uv-U needs scaled based on actual panel aspect ratio
Vector2 topMeasure = new Vector2 (topOuterRadius - bottomOuterRadius, totalPanelHeight);
float sideHeight = topMeasure.magnitude;
innerCapUV.u2 = sideHeight * uScale;
gen.setUVArea(innerCapUV);
//generate left? panel side
gen.generateCylinderPanelSidewall(0, -bottomOuterRadius, 0, totalPanelHeight, topOuterRadius, topInnerRadius, bottomOuterRadius, bottomInnerRadius, startAngle, true);
//generate right? panel side
gen.generateCylinderPanelSidewall(0, -bottomOuterRadius, 0, totalPanelHeight, topOuterRadius, topInnerRadius, bottomOuterRadius, bottomInnerRadius, startAngle + anglePerPanel, false);
}