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two node snap for triangles

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Sebastian
2024-11-06 02:28:37 +01:00
parent 9878b7b2a4
commit 95620a5f07
6 changed files with 89 additions and 75 deletions
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src/main.cpp
+23 -5
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@@ -289,12 +289,30 @@ int main(){
dragNode->position.x = round((mouse_pos.x + dragNode->drag_offset.x) / app.settings.grid) * app.settings.grid;
dragNode->position.y = round((mouse_pos.y + dragNode->drag_offset.y) / app.settings.grid) * app.settings.grid;
} else if(IsKeyDown(KEY_LEFT_SHIFT)){
float steps = round((dragNode->neighbor->position.dist(mouse_pos)) / app.settings.grid) * app.settings.grid;
float pol_r = steps;
float pol_theta = Vector2Angle(Vec2Df{1,0},(mouse_pos - dragNode->neighbor->position));
float steps = round((dragNode->neighbors.front()->position.dist(mouse_pos)) / app.settings.grid) * app.settings.grid;
if(dragNode->neighbors.size() > 1){
Vec2Df dn1 = dragNode->neighbors[0]->position;
Vec2Df dn2 = dragNode->neighbors[1]->position;
Vec2Df v1_orth = dn1.center(dn2);
if(dn1.x < dn2.x) std::swap(dn1,dn2);
Vec2Df polar = VISEQ::VMATH::polarToCartesian(pol_r, pol_theta);
dragNode->position = dragNode->neighbor->position + polar;
float dist = dn1.dist(dn2);
float dist_orth = std::sqrt(std::pow(steps,2) - std::pow(dist/2,2));
if(mouse_pos.y < v1_orth.y) dist_orth *= -1;
Vec2Df v1_orth_t = v1_orth + (dn1-dn2).norm().orth() * dist_orth;
DrawLineV(dn1, dn2, VS_COLOR_RED);
DrawLineV(v1_orth, v1_orth_t, VS_COLOR_RED);
DrawCircleV(v1_orth, 3.0f, VS_COLOR_RED);
dragNode->position = v1_orth_t;
} else if(!dragNode->neighbors.empty()){
float pol_r = steps;
float pol_theta = Vector2Angle(Vec2Df{1,0},(mouse_pos - dragNode->neighbors.front()->position));
Vec2Df polar = VISEQ::VMATH::polarToCartesian(pol_r, pol_theta);
dragNode->position = dragNode->neighbors.front()->position + polar;
}
} else {
dragNode->position = mouse_pos + dragNode->drag_offset;
}