38 lines
1.8 KiB
C++
38 lines
1.8 KiB
C++
|
#include "Emitter.h"
|
||
|
|
#include "olcUTIL_Geometry2D.h"
|
||
|
|
#include "utils.h"
|
||
|
|
#include "Crawler.h"
|
||
|
|
#include "DEFINES.h"
|
||
|
|
|
||
|
|
INCLUDE_game
|
||
|
|
|
||
|
|
LightningBoltEmitter::LightningBoltEmitter(vf2d startPos,vf2d endPos,float frequency,float timer,bool upperLevel)
|
||
|
|
:startPos(startPos),endPos(endPos),Emitter(frequency,timer),upperLevel(upperLevel){}
|
||
|
|
|
||
|
|
|
||
|
|
void LightningBoltEmitter::Emit(){
|
||
|
|
DrawLightningBolt();
|
||
|
|
}
|
||
|
|
|
||
|
|
void LightningBoltEmitter::DrawLightningBolt(){
|
||
|
|
vf2d currentPos=startPos;
|
||
|
|
const int MAX_ITERATIONS=100;
|
||
|
|
geom2d::line<float>lineToTarget=geom2d::line<float>(startPos,endPos);
|
||
|
|
float targetAngle=atan2(lineToTarget.vector().y,lineToTarget.vector().x);
|
||
|
|
float targetDist=lineToTarget.length()*util::random(0.5);
|
||
|
|
targetAngle+=util::random((PI/2))-PI/4;
|
||
|
|
geom2d::line<float>lightningLine=geom2d::line<float>(currentPos,currentPos+vf2d{cos(targetAngle)*targetDist,sin(targetAngle)*targetDist});
|
||
|
|
game->AddEffect(Effect(lightningLine.upoint(0),0,AnimationState::CHAIN_LIGHTNING,upperLevel,{lightningLine.length(),0.2},0.2,{},WHITE,targetAngle,0,true));
|
||
|
|
int iterations=1;
|
||
|
|
currentPos+=vf2d{cos(targetAngle)*targetDist,sin(targetAngle)*targetDist};
|
||
|
|
while(iterations<MAX_ITERATIONS&&geom2d::line<float>(currentPos,endPos).length()>1){
|
||
|
|
geom2d::line<float>lineToTarget=geom2d::line<float>(currentPos,endPos);
|
||
|
|
float targetAngle=atan2(lineToTarget.vector().y,lineToTarget.vector().x);
|
||
|
|
float targetDist=lineToTarget.length()*util::random(0.5);
|
||
|
|
targetAngle+=util::random((PI/2))-PI/4;
|
||
|
|
geom2d::line<float>lightningLine=geom2d::line<float>(currentPos,currentPos+vf2d{cos(targetAngle)*targetDist,sin(targetAngle)*targetDist});
|
||
|
|
game->AddEffect(Effect(lightningLine.upoint(0),0,AnimationState::CHAIN_LIGHTNING,upperLevel,{lightningLine.length(),0.2},0.2,{},WHITE,targetAngle,0,true));
|
||
|
|
currentPos+=vf2d{cos(targetAngle)*targetDist,sin(targetAngle)*targetDist};
|
||
|
|
iterations++;
|
||
|
|
}
|
||
|
|
}
|