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VirusAttack/olcCodeJam2023Entry/VirusAttack.cpp

118 lines
3.0 KiB

#define OLC_PGE_APPLICATION
#include "olcPixelGameEngine.h"
#define OLC_SOUNDWAVE
#include "olcSoundWaveEngine.h"
#include "VirusAttack.h"
#include "olcUTIL_Geometry2D.h"
VirusAttack::VirusAttack()
{
// Name your application
sAppName = "olcCodeJam 2023 Entry";
}
bool VirusAttack::OnUserCreate(){
CONSTANT::VIRUS_IMG1.Load("assets/unit.png");
CONSTANT::SELECTION_CIRCLE.Load("assets/selection_circle.png");
units.push_back(std::make_unique<BasicUnit>(vf2d{32,32},CONSTANT::VIRUS_IMG1,true));
for(int i=0;i<10;i++){
if(rand()%2==0){
units.push_back(std::make_unique<BasicUnit>(vf2d{float(rand()%ScreenWidth()),float(rand()%ScreenHeight())},CONSTANT::VIRUS_IMG1,false));
} else {
units.push_back(std::make_unique<BasicUnit2>(vf2d{float(rand()%ScreenWidth()),float(rand()%ScreenHeight())},CONSTANT::VIRUS_IMG1,false));
}
}
return true;
}
void VirusAttack::HandleDraggingSelection(){
if(GetMouse(0).bPressed){
for(auto&u:units){
u->Deselect();
}
if(startingDragPos==CONSTANT::UNSELECTED){
startingDragPos=GetMousePos();
}
}
if(GetMouse(0).bReleased){
vf2d endDragPos=GetMousePos();
if(endDragPos.x<startingDragPos.x){std::swap(startingDragPos.x,endDragPos.x);}
if(endDragPos.y<startingDragPos.y){std::swap(startingDragPos.y,endDragPos.y);}
geom2d::rect<float> selectionRegion(startingDragPos,endDragPos-startingDragPos);
for(auto&u:units){
if(u->IsFriendly()){
if(geom2d::overlaps(selectionRegion,u->GetPos())){
u->Select();
}
}
}
startingDragPos=CONSTANT::UNSELECTED;
}
}
void VirusAttack::DrawSelectionRectangle(){
if(startingDragPos!=CONSTANT::UNSELECTED){
FillRectDecal(startingDragPos,GetMousePos()-startingDragPos,{255,255,0,128});
}
}
bool VirusAttack::OnUserUpdate(float fElapsedTime){
HandleDraggingSelection();
if (GetMouse(1).bPressed){
bool selectedTarget=false;
for(auto&u:units){
if(!u->IsFriendly()){
geom2d::rect<float> unitRegion(u->GetPos()-u->GetUnitSize()/2,u->GetUnitSize());
if(geom2d::overlaps(unitRegion,GetMousePos())){
for(auto&u2:units){
if(u2->IsFriendly()&&u2->IsSelected()){
u2->SetTargetUnit(u);
}
}
selectedTarget=true;
break;
}
}
}
if(!selectedTarget){
for(auto&u:units){
if(u->IsFriendly()&&u->IsSelected()){
u->SetTargetLocation(GetMousePos());
}
}
}
}
for(auto&u:units){
for(auto&u2:units){
if(&u!=&u2&&geom2d::overlaps(geom2d::circle<float>(u->GetPos(),u->GetUnitSize().x/2),geom2d::circle<float>(u2->GetPos(),u2->GetUnitSize().x/2))){
geom2d::line<float>collisionLine(u->GetPos(),u2->GetPos());
float maxDist=u->GetUnitSize().x/2+u2->GetUnitSize().x/2;
float dist=maxDist-collisionLine.length();
vf2d dir=collisionLine.vector().norm();
u->SetPos(u->GetPos()-dir*dist/2);
u2->SetPos(u2->GetPos()+dir*dist/2);
}
}
u->Update(fElapsedTime);
}
for(auto&u:units){
u->Draw(this);
}
DrawSelectionRectangle();
return true;
}
int main()
{
VirusAttack app;
if (app.Construct(426, 320, 4, 4))
app.Start();
return 0;
}