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Game.cpp
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178 lines (135 loc) · 6.86 KB
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#include "Game.hpp"
#include <iostream>
namespace imac3 {
// Create a particleGraph
ParticleGraph createString(glm::vec2 A, glm::vec2 B, glm::vec3 color, glm::vec3 headColor, uint32_t discFactor, ParticleManager& particleManager) {
glm::vec2 AB = B - A;
glm::vec2 step = glm::vec2(AB[0]/discFactor, AB[1]/discFactor);
glm::vec2 position = A;
float mass = 1.f;
ParticleGraph graph;
unsigned int id = 0;
for(int i = 0; i < discFactor + 1; ++i) {
id = particleManager.addParticle(mass, position, glm::vec2(0.f, 0.f), glm::vec2(0.f, 0.f), color, ParticleManager::Type::P_SNAKE);
if(id != 0) {
std::pair<unsigned int, unsigned int> pair (id, id - 1);
graph.push_back(pair);
}
else if(id == discFactor) {
std::pair<unsigned int, unsigned int> pair (id, 0);
graph.push_back(pair);
}
position += step;
}
particleManager.getParticleColor(0) = headColor;
return graph;
}
// Copy a particle
int copyParticle(ParticleManager& sourceManager, ParticleManager& destinationManager, int id) {
int newId = destinationManager.addParticle(sourceManager.getParticleMass(id),
sourceManager.getParticlePosition(id),
sourceManager.getParticleVelocity(id),
sourceManager.getParticleForce(id),
sourceManager.getParticleColor(id));
return newId;
}
void updateParticle(ParticleManager& sourceManager, int sourceId, ParticleManager& destinationManager, int destinationId) {
destinationManager.getParticleMass(destinationId) = sourceManager.getParticleMass(sourceId);
destinationManager.getParticlePosition(destinationId) = sourceManager.getParticlePosition(sourceId);
destinationManager.getParticleVelocity(destinationId) = sourceManager.getParticleVelocity(sourceId);
destinationManager.getParticleForce(destinationId) = sourceManager.getParticleForce(sourceId);
destinationManager.getParticleColor(destinationId) = sourceManager.getParticleColor(sourceId);
}
// Add a particle to the Snake
void addParticletoSnake(ParticleGraph& graph, int id, ParticleManager& foodManager, ParticleManager& snakeManager) {
id = snakeManager.addParticleToHead(foodManager.getParticleMass(id),
foodManager.getParticlePosition(id),
foodManager.getParticleVelocity(id),
foodManager.getParticleForce(id),
snakeManager.getHeadColor());
foodManager.clear();
std::pair<unsigned int, unsigned int> pair (id, snakeManager.getCount() - 2);
graph.push_back(pair);
snakeManager.getParticleColor(1) = snakeManager.getParticleColor(2);
}
// Add attractive force
void addAttractiveForce(ParticleManager& foodManager, ParticleManager& snakeManager) {
int attractiveCoeff = 50;
glm::vec2 attractiveForce = foodManager.getParticlePosition(0) - snakeManager.getParticlePosition(0);
float d = glm::length(attractiveForce);
attractiveForce = glm::normalize(attractiveForce);
// Plus on divise et plus c'est petit : pluattractivecoeff augmente et mois l'attraction est forte au loin
snakeManager.addForceToParticle(0, glm::vec2(attractiveForce[0]/(attractiveCoeff*d), attractiveForce[1]/(attractiveCoeff*d)));
}
// Add repulsive force
void addRepulsiveForce(ParticleManager& repulsiveManager, ParticleManager& snakeManager) {
if(repulsiveManager.getCount() > 0) {
for(int i = 0; i < snakeManager.getCount(); ++i) {
for(int j = 0; j < repulsiveManager.getCount(); ++j) {
glm::vec2 repulse = snakeManager.getParticlePosition(i) - repulsiveManager.getParticlePosition(j);
float d = glm::length(repulse);
repulse = glm::normalize(repulse);
int repulsiveCoeff = 40;
if(d < 0.2) {
// Plus on divise et plus c'est petit : pluattractivecoeff augmente et mois l'attraction est forte au loin
snakeManager.addForceToParticle(i, glm::vec2(repulse[0]/(repulsiveCoeff*d), repulse[1]/(repulsiveCoeff*d)));
}
}
}
}
}
// Create bonus
void addBonus(ParticleManager& bonusManager) {
bonusManager.removeParticle(0);
bonusManager.addRandomParticle(1, ParticleManager::Type::P_BONUS);
}
// Check if the snake is outside
bool isOutside(ParticleManager& snakeManager) {
for(int i = 0; i < snakeManager.getCount(); ++i) {
//Right
if(snakeManager.getParticleX(i) >= 1.f) {
return true;
}
// Left
if(snakeManager.getParticleX(i) <= -1.f) {
return true;
}
// Up
if(snakeManager.getParticleY(i) >= 1.f) {
return true;
}
// Down
if(snakeManager.getParticleY(i) <= -1.f) {
return true;
}
}
return false;
}
// Check collision between snake and food
int checkFoodCollision(ParticleGraph& snakeGraph, ParticleManager& snakeManager, ParticleManager& foodManager, ParticleManager& fireworkManager, float step, int init) {
for(int i = init; i < foodManager.getCount(); ++i) {
if(foodManager.getParticleX(i) - step * foodManager.getParticleMass(i) <= snakeManager.getParticleX(0)
&& snakeManager.getParticleX(0) <= foodManager.getParticleX(i) + step * foodManager.getParticleMass(i)
&& foodManager.getParticleY(i) - step * foodManager.getParticleMass(i) <= snakeManager.getParticleY(0)
&& snakeManager.getParticleY(0) <= foodManager.getParticleY(i) + step* foodManager.getParticleMass(i)) {
fireworkManager.addCircleParticlesAtPosition(3, snakeManager.getParticlePosition(0), snakeManager.getParticleColor(1), 25);
addParticletoSnake(snakeGraph, i, foodManager, snakeManager);
foodManager.addRandomParticle(snakeManager.getCount());
return i;
}
}
return -1;
}
// Check collision between snake and snake
int checkSnakeCollision(ParticleManager& snakeManager, ParticleManager& foodManager, float step, int init) {
for(int i = init; i < foodManager.getCount() - 1; ++i) {
if(foodManager.getParticleX(i) - step * foodManager.getParticleMass(i) <= snakeManager.getParticleX(0)
&& snakeManager.getParticleX(0) <= foodManager.getParticleX(i) + step * foodManager.getParticleMass(i)
&& foodManager.getParticleY(i) - step * foodManager.getParticleMass(i) <= snakeManager.getParticleY(0)
&& snakeManager.getParticleY(0) <= foodManager.getParticleY(i) + step* foodManager.getParticleMass(i)) {
return i;
}
}
return -1;
}
}