Hi I am working though this book in my free time "Introduction to Game Development" by Steve Rabin and I hit a snag. Well on pg 402 there is aome psudo code that I cant understand what some of if means.
So I have this coded and I dont know where to go from here. This is prety much all I can get from this. What it supposed to do is a collection of N particals that move with out colideing, and then add some collition detection into this code later.
- import java.lang.Math;
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public class Euler {
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public static void main(String[] args) {
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//data needed
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float mass[];
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float t;
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float delta_t;
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Vector3D cur_S[];
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Vector3D prior_S[];
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Vector3D S_derives[];
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boolean gameOn = true; //keep game sim going
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//set current state to initial conditions
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for(int i = 0, i < N; i++){
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mass[i] = mass of particle i;
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cur_S[2*i] = particle i initial linear momentum;
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sur_S[2*i+1] = particle i initial position;
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}
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while(gameOn == true){
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delta_t.physicSim;
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for (i = 0; i < N; i ++){
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Render particle i at postion cur_S[2*i +1];
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}
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}
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//do physic method
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public void physicSim(delta_t){
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prior_s = cur_S;
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//calculate the staet derivative vector
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for(i = 0; i < N; i++){
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S_derivs = CalcForce(i);
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S_derivs = prior_S[2*i] / mass[i];
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}
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}
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ExplicitEuler(2*N, cur_S, prior_S, S_derivs, delta_t);
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t = t+ delta_t;
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}
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}
