Programm auf "Kettenreaktion" erweitert

Capter1/ax_game.cpp

@@ -1,4 +1,5 @@
 #include "ax_game.hpp"
+#include <vector>
 
 ax_game::ax_game()
 {
@@ -7,7 +8,20 @@ ax_game::ax_game()
     ax_TickCounter = 0;
     ax_IsRunning = true;
 
-    ax_ball_one = ball();
+    
+    srand(time(0));
+    
+
+    //ax_ball_one = ball(500, 400, 0, 0);
+    //ax_ball_two = ball(500, 500, 0, 0);
+
+    for (int i = 0; i < 10; i++)
+    {
+        ax_balliste.emplace_back(ball(rand() % 1024, rand() % 768, (rand() % 200) -100 , (rand() % 200) -100));
+    }
+    
+    
+
 }
 
 ax_game::~ax_game()
@@ -64,11 +78,11 @@ void ax_game::Input(){
 
     //Tastatur auslesen
     const Uint8 *state = SDL_GetKeyboardState(NULL);
-    if(state[SDL_SCANCODE_ESCAPE]) ax_IsRunning = false;
+    //if(state[SDL_SCANCODE_ESCAPE]) ax_IsRunning = false;
-    if(state[SDL_SCANCODE_S]) ax_ball_one.vely += 10;
+    //if(state[SDL_SCANCODE_S]) ax_balliste[0].vely += 10;
-    if(state[SDL_SCANCODE_W]) ax_ball_one.vely -= 10;
+    //if(state[SDL_SCANCODE_W]) ax_balliste[0].vely -= 10;
-    if(state[SDL_SCANCODE_D]) ax_ball_one.velx += 10;
+    //if(state[SDL_SCANCODE_D]) ax_balliste[0].velx += 10;
-    if(state[SDL_SCANCODE_A]) ax_ball_one.velx -= 10;
+    //if(state[SDL_SCANCODE_A]) ax_balliste[0].velx -= 10;
 
 
 }
@@ -83,7 +97,19 @@ void ax_game::Update(){
     ax_TickCounter = SDL_GetTicks();
     
     // Update Ball
-    ax_ball_one.Update(DeltaTime);
+    for (auto &n : ax_balliste){
+        n.Update(DeltaTime, ax_balliste);
+    }
+
+    // clean up
+    for (auto it = ax_balliste.begin(); it != ax_balliste.end(); )
+    {
+        if (!it->alive)
+        it = ax_balliste.erase(it); // erase gibt neuen gültigen Iterator zurück
+    else
+        ++it; // nur erhöhen, wenn nichts gelöscht wurde
+    }
+
 }
 
 void ax_game::Output(){
@@ -91,7 +117,12 @@ void ax_game::Output(){
     SDL_RenderClear(ax_Renderer);   //Puffer leeren
 
     
-    ax_ball_one.Draw(ax_Renderer);
+    //ax_ball_one.Draw(ax_Renderer);
+    //ax_ball_two.Draw(ax_Renderer);
+
+    for (auto &n : ax_balliste){
+        n.Draw(ax_Renderer);
+    }
 
     SDL_RenderPresent(ax_Renderer);
 }

Capter1/ax_game.hpp

@@ -14,7 +14,10 @@ private:
     Uint32 ax_TickCounter;
     bool ax_IsRunning;
 
+    
+
     ball ax_ball_one;
+    ball ax_ball_two;
     
 
 public:
@@ -23,5 +26,7 @@ public:
     bool Init();
     void RunLoop();
     void Shutdown();
+
+    std::vector<ball> ax_balliste;
 };
 

Capter1/ball.cpp

@@ -1,25 +1,35 @@
 #include "ball.hpp"
 #include "ax_funktions.hpp"
-
+#include <vector>
+#include <math.h>
 
 
 ball::ball()
 {
-    std::cout << "Ball erzeugt!"<< std::endl;
+
+}
+
+
+ball::ball(int x, int y, int vx, int vy)
+{
+    //std::cout << "Ball erzeugt!"<< std::endl;
 
     r_dir = 0;
     g_dir = -1;
     b_dir = 1;
 
-    velx = 200;
+    velx = vx;
-    vely = 200;
+    vely = vy;
 
-    rect = {20,20,20,20};
+    alive = true;
+
+    rect = {x,y,20,20};
     color = {255,0,0,255};
 }
 
 ball::~ball()
 {
+    std::cout << "Ball gelöscht" << std::endl;
 }
 
 int ball::GetXPos(){
@@ -37,19 +47,24 @@ void ball::Draw(SDL_Renderer* renderer){
     SDL_RenderFillRect(renderer, &rect);
 }
 
-void ball::Update(float f_DeltaTime){
+void ball::Update(float f_DeltaTime, std::vector<ball> &list){
+    if (this->rect.w <= 1)
+    {
+        this->alive = false;
+    }
+    
     color.r += r_dir;
     color.g += g_dir;
     color.b += b_dir;
 
     //=================ColorCycle======================
     // Clamp values between 1 and 254
-    color.g = ax::clamp_int(color.g, 1, 254);
+    //color.g = ax::clamp_int(color.g, 1, 254);
-    color.b = ax::clamp_int(color.b, 1, 254);
+    //color.b = ax::clamp_int(color.b, 1, 254);
-    color.r = ax::clamp_int(color.r, 1, 254);
+    //color.r = ax::clamp_int(color.r, 1, 254);
 
     // Transition logic
-    if (r_dir != 0 && (color.r == 254 || color.r == 1)) {
+    /*if (r_dir != 0 && (color.r == 254 || color.r == 1)) {
         r_dir = 0;
         g_dir = (color.r == 254) ? 1 : -1;
         b_dir = 0;
@@ -64,14 +79,59 @@ void ball::Update(float f_DeltaTime){
         r_dir = 0;
         g_dir = (color.b == 254) ? -1 : 1;
     }
+    */
 
     //=================Movement======================
     //Update Position
     rect.x +=velx * f_DeltaTime;
     rect.y +=vely * f_DeltaTime;
+
     //Kollisioinstest Fenster 1024x768
-    if(rect.x > (1024 -20) || rect.x < 0) velx *= -0.5;
+    if(rect.x > (1024 -20) || rect.x < 0)
-    if(rect.y > (768 - 20) || rect.y < 0) vely *= -0.5;
+    {
+        velx = (velx * -0.9) + rand() % 10;
+        this->rect.w -=2;
+        this->rect.h -=2;        
+    } 
+    if(rect.y > (768 - 20) || rect.y < 0){
+        vely = (vely * -0.9) + rand() % 10;
+        this->rect.w -=2;
+        this->rect.h -=2;
+    } 
     //std::cout << velx <<"|"<< vely <<std::endl;
 
+
+    //==============Kollision=======================
+    
+    for (ball &i : list){
+        if(&i == this) continue; // sich selbst überspringen
+        float dx = i.GetXPos() - this->GetXPos();
+        float dy = i.GetYPos() - this->GetYPos();
+        float distance = sqrt(dx*dx + dy*dy);
+
+        if (distance < this->rect.w)
+        {
+            this->rect.w /=2;
+            this->rect.h /=2;
+
+            int tempx = this->velx;
+            int tempy = this->vely;
+
+            this->velx = i.velx + rand() % 10;
+            this->vely = i.vely + rand() % 10;
+
+            i.velx = tempx + rand() % 10;
+            i.vely = tempy + rand() % 10;
+
+            // Split ball
+            if (list.size() < 1000)
+            {
+                list.emplace_back(ball(this->GetXPos() + 21 , this->GetYPos()+1, this->velx, (rand() % 200) -100));
+                list.back().rect.w /=2;
+                list.back().rect.h /=2;
+            }
+        }
+    }
+    
+    
 }

Capter1/ball.hpp

@@ -1,5 +1,6 @@
 #include "SDL2/SDL.h"
 #include <iostream>
+#include <vector>
 
 class ball
 {
@@ -12,13 +13,17 @@ public:
     SDL_Color color;
     float velx;
     float vely;
-    
+    bool alive;
 
 public:
     ball();
     ~ball();
+
+    //ball(int x, int y);
+    ball(int x, int y, int vx, int vy);
+
     int GetXPos();
     int GetYPos();
-    void Update(float f_DeltaTime);
+    void Update(float f_DeltaTime, std::vector<ball> &list);
     void Draw(SDL_Renderer* renderer);
 };

Capter1/main.cpp

@@ -2,6 +2,7 @@
 #include "ax_game.hpp"
 #include <iostream>
 
+
 int main(int argc, char** argv)
 {
 	/*Game game;
@@ -17,6 +18,7 @@ int main(int argc, char** argv)
 	ax_game AXGAME;
 	bool success = AXGAME.Init();
 	
+
 	if(success){
 		AXGAME.RunLoop();
 		std::cout<< i++ << std::endl;