forked from Mirrors/openclonk
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/**
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ConstructionPreviewer
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@author Clonkonaut
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*/
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local dimension_x, dimension_y, clonk, structure, direction, stick_to;
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local GFX_StructureOverlay = 1;
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local GFX_CombineIconOverlay = 2;
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public func GetFlipDescription() { return "$TxtFlipDesc$"; }
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func Initialize()
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{
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SetProperty("Visibility", VIS_Owner);
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}
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func Set(id to_construct, object constructing_clonk)
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{
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SetGraphics(nil, to_construct, GFX_StructureOverlay, GFXOV_MODE_Base);
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SetGraphics(nil, to_construct, 3, GFXOV_MODE_Picture, nil, GFX_BLIT_Wireframe);
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dimension_x = to_construct->GetDefWidth();
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dimension_y = to_construct->GetDefHeight();
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clonk = constructing_clonk;
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structure = to_construct;
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direction = DIR_Left;
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AdjustPreview();
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}
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// Positions the preview according to the landscape, coloring it green, yellow or red
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func AdjustPreview(bool look_up, bool no_call)
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{
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var half_y = dimension_y / 2;
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// Do only if not sticking to another object
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if (!stick_to)
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{
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// Place on material
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var search_dir = 1;
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if (look_up) search_dir = -1;
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var x = 0, y = 0, fail = false;
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while(!(!GBackSolid(x,y + half_y) && GBackSolid(x,y + half_y + 1)))
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{
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y += search_dir;
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if (Abs(y) > dimension_y/2)
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{
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fail = true;
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break;
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}
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}
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if (fail && !no_call)
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return AdjustPreview(!look_up, true);
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if (fail)
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return SetClrModulation(RGBa(255,50,50, 100), GFX_StructureOverlay);
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SetPosition(GetX(), GetY() + y);
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}
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if (!CheckConstructionSite(structure, 0, half_y))
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fail = true;
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else
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// intersection-check with all other construction sites... bah
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for(var other_site in FindObjects(Find_ID(ConstructionSite)))
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{
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if(!(other_site->GetLeftEdge() > GetX()+dimension_x/2 ||
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other_site->GetRightEdge() < GetX()-dimension_x/2 ||
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other_site->GetTopEdge() > GetY()+half_y ||
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other_site->GetBottomEdge() < GetY()-half_y))
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{
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fail = true;
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}
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}
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if(!fail)
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{
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if (!stick_to)
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SetClrModulation(RGBa(50,255,50, 100), GFX_StructureOverlay);
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else
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SetClrModulation(RGBa(255,255,50, 200), GFX_StructureOverlay);
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}
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else
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SetClrModulation(RGBa(255,50,50, 100), GFX_StructureOverlay);
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}
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// Positions the preview according to the mouse cursor, calls AdjustPreview afterwards
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// x and y are refined mouse coordinates so always centered at the clonk
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func Reposition(float x, float y)
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{
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x = BoundBy(x, -dimension_x/2, dimension_x/2);
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y = BoundBy(y, -dimension_y/2, dimension_y/2);
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var found = false;
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if (structure->~ConstructionCombineWith())
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{
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var other = FindObject(Find_Func(structure->ConstructionCombineWith(), this),
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Find_InRect(AbsX(clonk->GetX() + x - dimension_x/2 - 10), AbsY(clonk->GetY() + y - dimension_y/2 - 10), dimension_x + 20, dimension_y + 20),
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Find_OCF(OCF_Fullcon),
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Find_Layer(clonk->GetObjectLayer()),
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Find_Allied(clonk->GetOwner()),
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Find_NoContainer());
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if (other)
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{
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if (other->GetX() < GetX())
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x = other->GetX() + other->GetObjWidth()/2 + dimension_x / 2;
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else
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x = other->GetX() - other->GetObjWidth()/2 - dimension_x / 2;
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y = other->GetY();
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stick_to = other;
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found = true;
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}
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}
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if (!found)
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{
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x = clonk->GetX() + x;
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y = clonk->GetY() + y;
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}
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if (!found && stick_to)
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{
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stick_to = nil;
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SetGraphics(nil, nil, GFX_CombineIconOverlay);
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} else if (stick_to) {
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SetGraphics(nil, ConstructionPreviewer_IconCombine, GFX_CombineIconOverlay, GFXOV_MODE_Base);
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var dir = 1;
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if (stick_to->GetX() < GetX()) dir = -1;
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SetObjDrawTransform(1000, 0, dimension_x/2 * 1000 * dir, 0, 1000, 0, GFX_CombineIconOverlay);
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}
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SetPosition(x, y);
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AdjustPreview();
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}
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// Flips the preview horizontally
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func Flip()
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{
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// Flip not allowed?
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if (structure->~NoConstructionFlip()) return;
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if (direction == DIR_Left)
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{
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direction = DIR_Right;
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SetObjDrawTransform(-1000,0,0, 0,1000,0, GFX_StructureOverlay);
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} else {
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direction = DIR_Left;
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SetObjDrawTransform(1000,0,0, 0,1000,0, GFX_StructureOverlay);
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}
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} |