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336 lines
13 KiB
336 lines
13 KiB
#pragma region License
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/*
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License (OLC-3)
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~~~~~~~~~~~~~~~
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Copyright 2024 Joshua Sigona <sigonasr2@gmail.com>
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions or derivations of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions or derivative works in binary form must reproduce the above
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copyright notice. This list of conditions and the following disclaimer must be
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reproduced in the documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors may
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be used to endorse or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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Portions of this software are copyright © 2024 The FreeType
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Project (www.freetype.org). Please see LICENSE_FT.txt for more information.
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All rights reserved.
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*/
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#pragma endregion
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#include "HamsterGame.h"
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#include "Hamster.h"
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#include "util.h"
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#include <ranges>
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std::vector<Hamster>Hamster::HAMSTER_LIST;
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const uint8_t Hamster::MAX_HAMSTER_COUNT{100U};
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const uint8_t Hamster::NPC_HAMSTER_COUNT{5U};
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const std::vector<std::string>Hamster::NPC_HAMSTER_IMAGES{
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"hamster.png",
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};
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const std::string Hamster::PLAYER_HAMSTER_IMAGE{"hamster.png"};
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std::optional<Hamster*>Hamster::playerHamster;
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Hamster::Hamster(const vf2d spawnPos,const std::string_view img,const PlayerControlled IsPlayerControlled)
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:pos(spawnPos),IsPlayerControlled(IsPlayerControlled){
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animations=HamsterGame::GetAnimations(img);
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animations.ChangeState(internalAnimState,HamsterGame::DEFAULT);
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}
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void Hamster::UpdateHamsters(const float fElapsedTime){
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for(Hamster&h:HAMSTER_LIST){
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h.lastSafeLocationTimer=std::max(0.f,h.lastSafeLocationTimer-fElapsedTime);
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h.animations.UpdateState(h.internalAnimState,fElapsedTime);
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h.frictionEnabled=true;
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h.bumpTimer-=fElapsedTime;
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h.HandleCollision();
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switch(h.state){
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case NORMAL:{
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//TODO: NPC controls.
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if(h.IsPlayerControlled){
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h.HandlePlayerControls();
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}
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}break;
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case BUMPED:{
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if(h.bumpTimer<=0.f){
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h.state=NORMAL;
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}
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}break;
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case DROWNING:{
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if(h.imgScale>0.f){
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h.shrinkEffectColor=BLACK;
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h.imgScale=std::max(0.f,h.imgScale-0.5f*fElapsedTime);
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}
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else{
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h.waitTimer=4.f;
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h.state=WAIT;
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}
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}break;
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case WAIT:{
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h.waitTimer=std::max(0.f,h.waitTimer-fElapsedTime);
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if(h.waitTimer<=0.f){
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h.imgScale=1.f;
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h.drownTimer=0.f;
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h.pos=h.lastSafeLocation;
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h.state=NORMAL;
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h.RemoveAllPowerups();
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}
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}break;
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case BURNING:{
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if(h.imgScale>0.f){
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h.shrinkEffectColor=RED;
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h.imgScale=std::max(0.f,h.imgScale-0.5f*fElapsedTime);
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}else{
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h.waitTimer=4.f;
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h.state=WAIT;
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}
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}break;
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}
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if((h.GetTerrainStandingOn()==Terrain::OCEAN||!h.HasPowerup(Powerup::SWAMP)&&h.GetTerrainStandingOn()==Terrain::SWAMP)&&h.state!=DROWNING&&h.state!=WAIT)h.drownTimer+=fElapsedTime;
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else if((!h.HasPowerup(Powerup::LAVA)&&h.GetTerrainStandingOn()==Terrain::LAVA)&&h.state!=BURNING&&h.state!=WAIT)h.burnTimer+=fElapsedTime;
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else if(h.lastSafeLocationTimer<=0.f&&h.state==NORMAL&&!h.StandingOnLethalTerrain()){
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h.lastSafeLocationTimer=0.5f;
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h.drownTimer=0.f;
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h.burnTimer=0.f;
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h.lastSafeLocation=h.GetPos();
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}
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if(h.drownTimer>=h.DEFAULT_DROWN_TIME&&h.state!=DROWNING&&h.state!=WAIT){
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h.state=DROWNING;
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}
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if(h.burnTimer>=h.DEFAULT_BURN_TIME&&h.state!=BURNING&&h.state!=WAIT){
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h.state=BURNING;
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}
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h.TurnTowardsTargetDirection();
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h.MoveHamster();
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}
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}
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void Hamster::LoadHamsters(const vf2d startingLoc){
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HAMSTER_LIST.clear();
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playerHamster.reset();
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HAMSTER_LIST.reserve(MAX_HAMSTER_COUNT);
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if(NPC_HAMSTER_COUNT+1>MAX_HAMSTER_COUNT)throw std::runtime_error{std::format("WARNING! Max hamster count is too high! Please expand the MAX_HAMSTER_COUNT if you want more hamsters. Requested {} hamsters.",MAX_HAMSTER_COUNT)};
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playerHamster=&HAMSTER_LIST.emplace_back(startingLoc,PLAYER_HAMSTER_IMAGE,PLAYER_CONTROLLED);
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for(int i:std::ranges::iota_view(0U,NPC_HAMSTER_COUNT)){
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HAMSTER_LIST.emplace_back(startingLoc,NPC_HAMSTER_IMAGES.at(util::random()%NPC_HAMSTER_IMAGES.size()),NPC);
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}
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}
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void Hamster::DrawHamsters(TransformedView&tv){
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for(Hamster&h:HAMSTER_LIST){
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const Animate2D::FrameSequence&anim{h.animations.GetFrames(h.internalAnimState)};
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const Animate2D::FrameSequence&wheelTopAnim{h.animations.GetFrames(HamsterGame::WHEEL_TOP)};
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const Animate2D::FrameSequence&wheelBottomAnim{h.animations.GetFrames(HamsterGame::WHEEL_BOTTOM)};
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const Animate2D::Frame&img{h.animations.GetState(h.internalAnimState)==HamsterGame::DEFAULT?anim.GetFrame(h.distanceTravelled/100.f):h.GetCurrentAnimation()};
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const Animate2D::Frame&wheelTopImg{wheelTopAnim.GetFrame(h.distanceTravelled/80.f)};
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const Animate2D::Frame&wheelBottomImg{wheelBottomAnim.GetFrame(h.distanceTravelled/80.f)};
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if(h.HasPowerup(Powerup::WHEEL))tv.DrawPartialRotatedDecal(h.pos,wheelBottomImg.GetSourceImage()->Decal(),h.rot,wheelBottomImg.GetSourceRect().size/2,wheelBottomImg.GetSourceRect().pos,wheelBottomImg.GetSourceRect().size,vf2d{1.f,1.f}*h.imgScale,PixelLerp(h.shrinkEffectColor,WHITE,h.imgScale));
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tv.DrawPartialRotatedDecal(h.pos,img.GetSourceImage()->Decal(),h.rot,img.GetSourceRect().size/2,img.GetSourceRect().pos,img.GetSourceRect().size,vf2d{1.f,1.f}*h.imgScale,PixelLerp(h.shrinkEffectColor,WHITE,h.imgScale));
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if(h.HasPowerup(Powerup::WHEEL))tv.DrawPartialRotatedDecal(h.pos,wheelTopImg.GetSourceImage()->Decal(),h.rot,wheelTopImg.GetSourceRect().size/2,wheelTopImg.GetSourceRect().pos,wheelTopImg.GetSourceRect().size,vf2d{1.f,1.f}*h.imgScale,PixelLerp(h.shrinkEffectColor,{255,255,255,192},h.imgScale));
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}
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}
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const Animate2D::Frame&Hamster::GetCurrentAnimation()const{
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return animations.GetFrame(internalAnimState);
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}
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const Hamster&Hamster::GetPlayer(){
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if(!playerHamster.has_value())throw std::runtime_error{std::format("WARNING! Player is not created at this time! There should not be any code referencing the player at this moment!")};
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return *playerHamster.value();
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}
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const vf2d&Hamster::GetPos()const{
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return pos;
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}
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void Hamster::HandlePlayerControls(){
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vf2d aimingDir{};
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if(HamsterGame::Game().GetKey(W).bHeld){
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aimingDir+=vf2d{0,-1};
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}
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if(HamsterGame::Game().GetKey(D).bHeld){
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aimingDir+=vf2d{1,0};
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}
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if(HamsterGame::Game().GetKey(S).bHeld){
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aimingDir+=vf2d{0,1};
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}
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if(HamsterGame::Game().GetKey(A).bHeld){
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aimingDir+=vf2d{-1,0};
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}
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if(HamsterGame::Game().GetKey(PGUP).bPressed){
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HamsterGame::Game().tv.ZoomAtScreenPos(0.95f,HamsterGame::Game().tv.WorldToScreen(GetPos()));
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z+=HamsterGame::Game().GetElapsedTime();
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}
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if(HamsterGame::Game().GetKey(PGDN).bPressed){
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z=std::max(0.f,z-HamsterGame::Game().GetElapsedTime());
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HamsterGame::Game().tv.ZoomAtScreenPos(1.05f,HamsterGame::Game().tv.WorldToScreen(GetPos()));
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}
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if(aimingDir!=vf2d{}){
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targetRot=aimingDir.norm().polar().y;
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const vf2d currentVel{vel};
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vel+=vf2d{currentVel.polar().x+(GetMaxSpeed()*HamsterGame::Game().GetElapsedTime())/GetTimeToMaxSpeed(),rot}.cart();
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vel=vf2d{std::min(GetMaxSpeed(),vel.polar().x),vel.polar().y}.cart();
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frictionEnabled=false;
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}
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}
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void Hamster::TurnTowardsTargetDirection(){
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util::turn_towards_direction(rot,targetRot,GetTurnSpeed()*HamsterGame::Game().GetElapsedTime());
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}
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void Hamster::MoveHamster(){
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pos+=vel*HamsterGame::Game().GetElapsedTime();
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distanceTravelled+=vel.mag()*HamsterGame::Game().GetElapsedTime();
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#pragma region Handle Friction
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if(frictionEnabled){
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const vf2d currentVel{vel};
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vel=vf2d{std::max(0.f,currentVel.polar().x-GetFriction()*HamsterGame::Game().GetElapsedTime()),currentVel.polar().y}.cart();
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}
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#pragma endregion
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}
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void Hamster::HandleCollision(){
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for(Hamster&h:HAMSTER_LIST){
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if(this==&h)continue;
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if(geom2d::overlaps(geom2d::circle<float>(GetPos(),GetRadius()),geom2d::circle<float>(h.GetPos(),h.GetRadius()))){
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if(geom2d::line<float>(GetPos(),h.GetPos()).length()==0.f){ //Push these two in random directions, they are on top of each other!
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float randDir{util::random(2*geom2d::pi)};
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vf2d collisionResolve1{GetPos()+vf2d{GetRadius(),randDir}.cart()};
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vf2d collisionResolve2{h.GetPos()+vf2d{h.GetRadius(),float(randDir+geom2d::pi)}.cart()};
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pos=collisionResolve1;
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h.pos=collisionResolve2;
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vel=vf2d{GetBumpAmount(),randDir}.cart();
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h.vel=vf2d{GetBumpAmount(),float(randDir+geom2d::pi)}.cart();
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}else{
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geom2d::line<float>collisionLine{geom2d::line<float>(GetPos(),h.GetPos())};
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float distance{collisionLine.length()};
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float totalRadii{GetRadius()+h.GetRadius()};
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float bumpDistance{totalRadii-distance};
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vf2d collisionResolve1{GetPos()+vf2d{bumpDistance/2.f,float(collisionLine.vector().polar().y+geom2d::pi)}.cart()};
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vf2d collisionResolve2{h.GetPos()+vf2d{bumpDistance/2.f,collisionLine.vector().polar().y}.cart()};
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pos=collisionResolve1;
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h.pos=collisionResolve2;
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vel=vf2d{GetBumpAmount(),float(collisionLine.vector().polar().y+geom2d::pi)}.cart();
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h.vel=vf2d{GetBumpAmount(),collisionLine.vector().polar().y}.cart();
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}
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state=h.state=BUMPED;
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bumpTimer=h.bumpTimer=0.12f;
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}
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}
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for(Powerup&powerup:Powerup::GetPowerups()){
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if(!HasPowerup(powerup.GetType())&&geom2d::overlaps(geom2d::circle<float>(GetPos(),collisionRadius),geom2d::circle<float>(powerup.GetPos(),20.f))){
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ObtainPowerup(powerup.GetType());
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powerup.OnPowerupObtain();
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}
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}
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}
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const float Hamster::GetRadius()const{
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return collisionRadius;
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}
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const Terrain::TerrainType Hamster::GetTerrainStandingOn()const{
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return HamsterGame::Game().GetTerrainTypeAtPos(GetPos());
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}
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const float Hamster::GetTimeToMaxSpeed()const{
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float finalTimeToMaxSpd{DEFAULT_TIME_TO_MAX_SPD};
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if(!HasPowerup(Powerup::ICE)&&GetTerrainStandingOn()==Terrain::ICE)finalTimeToMaxSpd*=3;
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else if(!HasPowerup(Powerup::SWAMP)&&GetTerrainStandingOn()==Terrain::SWAMP)finalTimeToMaxSpd*=1.25;
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return finalTimeToMaxSpd;
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}
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const float Hamster::GetMaxSpeed()const{
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float finalMaxSpd{DEFAULT_MAX_SPD};
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switch(GetTerrainStandingOn()){
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case Terrain::GRASS:{
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if(!HasPowerup(Powerup::GRASS))finalMaxSpd*=0.80f;
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}break;
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case Terrain::SAND:{
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if(!HasPowerup(Powerup::SAND))finalMaxSpd*=0.60f;
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}break;
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case Terrain::SWAMP:{
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if(HasPowerup(Powerup::SWAMP))finalMaxSpd*=0.80f;
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else finalMaxSpd*=0.50f;
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}break;
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case Terrain::SHORE:{
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finalMaxSpd*=0.80f;
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}break;
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case Terrain::OCEAN:{
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finalMaxSpd*=0.10f;
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}break;
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case Terrain::FOREST:{
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if(!HasPowerup(Powerup::FOREST))finalMaxSpd*=0.50f;
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}break;
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}
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if(HasPowerup(Powerup::WHEEL))finalMaxSpd*=1.5f;
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return finalMaxSpd;
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}
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const float Hamster::GetFriction()const{
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float finalFriction{DEFAULT_FRICTION};
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if(!HasPowerup(Powerup::ICE)&&GetTerrainStandingOn()==Terrain::ICE)finalFriction*=0.1f;
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else if(!HasPowerup(Powerup::SWAMP)&&GetTerrainStandingOn()==Terrain::SWAMP)finalFriction*=0.6f;
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return finalFriction;
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}
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const float Hamster::GetTurnSpeed()const{
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float finalTurnSpd{DEFAULT_TURN_SPD};
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if(!HasPowerup(Powerup::ICE)&&GetTerrainStandingOn()==Terrain::ICE)finalTurnSpd*=0.6f;
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return finalTurnSpd;
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}
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const float Hamster::GetBumpAmount()const{
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float finalBumpAmt{DEFAULT_BUMP_AMT};
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return finalBumpAmt*GetMaxSpeed()/DEFAULT_MAX_SPD;
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}
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void Hamster::ObtainPowerup(const Powerup::PowerupType powerup){
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powerups.insert(powerup);
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}
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const bool Hamster::HasPowerup(const Powerup::PowerupType powerup)const{
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return powerups.count(powerup);
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}
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void Hamster::RemoveAllPowerups(){
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powerups.clear();
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}
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const bool Hamster::StandingOnLethalTerrain()const{
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return GetTerrainStandingOn()==Terrain::LAVA||GetTerrainStandingOn()==Terrain::OCEAN||GetTerrainStandingOn()==Terrain::SWAMP;
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}
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const bool Hamster::IsDrowning()const{
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return drownTimer>0.f;
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}
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const bool Hamster::IsBurning()const{
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return burnTimer>0.f;
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}
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const float Hamster::GetDrownRatio()const{
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return drownTimer/DEFAULT_DROWN_TIME;
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}
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const float Hamster::GetBurnRatio()const{
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return burnTimer/DEFAULT_BURN_TIME;
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}
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const float&Hamster::GetZ()const{
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return z;
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} |