Added inputSystem

src/DarkRP2D.cpp

@@ -2,17 +2,14 @@
 #include <SDL2/SDL_image.h>
 
 #include "DarkRP2D.h"
-#include "utility/utility.h"
+#include "utility/Utility.h"
 
-
-
-  void DarkRP2D::create(SDL_Renderer *gRenderer) {
+void DarkRP2D::create(SDL_Renderer *gRenderer, InputHandler *inputHandler) {
     this->gRenderer = gRenderer;
-
+    this->inputHandler = inputHandler;
     //Load PNG texture
     gTexture = utility::loadTexture( "assets/police_officer.png", gRenderer);
-
-  }
+}
 
   unsigned int ups = 0;
   unsigned int acc = 0;
@@ -20,7 +17,10 @@
       accumulator += deltaTime;
       acc += deltaTime;
 
-      //Process Input
+      Command *command = inputHandler->handleInput();
+      if (command) {
+          command->execute();
+      }
 
       skippedFrames = 0;
       while (accumulator >= MS_PER_UPDATE && skippedFrames <= MAX_FRAMESKIP) {
@@ -46,8 +46,14 @@
     //Clear screen
     SDL_RenderClear( gRenderer );
 
+    SDL_Rect textureRect; //create a rect
+    textureRect.x = 0;  //controls the rect's x coordinate
+    textureRect.y = 0; // controls the rect's y coordinte
+    textureRect.w = 64; // controls the width of the rect
+    textureRect.h = 64; // controls the height of the rect
+
     //Render texture to screen
-    SDL_RenderCopy( gRenderer, gTexture, NULL, NULL );
+    SDL_RenderCopy( gRenderer, gTexture, NULL, &textureRect );
 
     //Update screen
     SDL_RenderPresent( gRenderer );
@@ -57,8 +63,8 @@
 
   }
 
-  void DarkRP2D::dispose() {
-      //Free loaded image
-      SDL_DestroyTexture( gTexture );
-      gTexture = NULL;
+  DarkRP2D::~DarkRP2D() {
+    //Free loaded image
+    SDL_DestroyTexture( gTexture );
+    gTexture = NULL;
   }

src/DarkRP2D.h

@@ -2,6 +2,7 @@
 #define DARKRP2D_H
 
 #include <SDL2/SDL.h>
+#include "input/InputHandler.h"
 
 class DarkRP2D {
 private:
@@ -9,6 +10,7 @@ private:
   int skippedFrames = 0;
   //test texture
   SDL_Texture* gTexture = NULL;
+  InputHandler *inputHandler;
 
 public:
   static const int UPDATES_PER_SECOND = 60;
@@ -18,12 +20,12 @@ public:
   SDL_Renderer* gRenderer = NULL;
 
   DarkRP2D() {}
-  void create(SDL_Renderer *gRenderer);
+  ~DarkRP2D();
+  void create(SDL_Renderer *gRenderer, InputHandler *inputHandler);
   void loop(unsigned int deltaTime);
   void update(float deltaInSec);
   void render(float deltaInSec);
   void resize(int width, int height);
-  void dispose();
 };
 
 #endif // DARKRP2D_H

src/DesktopLauncher.cpp

@@ -2,6 +2,7 @@
 
 #include <SDL2/SDL.h>
 #include "DarkRP2D.h"
+#include "input/InputHandler.h"
 
 #define GAME_NAME "DarkRP2D"
 
@@ -11,6 +12,7 @@ SDL_Window* gWindow = NULL; //The window we'll be rendering to
 SDL_Surface* gScreenSurface = NULL; //The surface contained by the window
 SDL_Renderer* gRenderer = NULL;
 DarkRP2D* darkRP2D = NULL;
+InputHandler* inputHandler = NULL;
 
 void PrintEvent(const SDL_Event *event) {
     if (event->type == SDL_WINDOWEVENT) {
@@ -111,16 +113,16 @@ bool init() {
             }
         }
     }
-
+    inputHandler = new InputHandler();
     darkRP2D = new DarkRP2D();
-    darkRP2D->create(gRenderer);
+    darkRP2D->create(gRenderer, inputHandler);
 
     return success;
 }
 
 void close() {
-  darkRP2D->dispose();
   delete darkRP2D;
+  delete inputHandler;
   SDL_DestroyRenderer( gRenderer );
   SDL_FreeSurface( gScreenSurface );
   SDL_DestroyWindow( gWindow );
@@ -151,6 +153,8 @@ int main(int argc, char *argv[]) {
         //User requests quit
         if( e.type == SDL_QUIT ) {
               running = false;
+        } else if ((e.type == SDL_KEYDOWN || e.type == SDL_KEYUP) && e.key.repeat == 0)  {
+          inputHandler->inputEvent(&e);
         }
         PrintEvent(&e);
       }
@@ -160,5 +164,5 @@ int main(int argc, char *argv[]) {
 
     close();
 
-    return success;
+    return !success;
 }

src/input/InputHandler.cpp

@@ -0,0 +1,48 @@
+#include <cstddef>
+
+#include "InputHandler.h"
+
+InputHandler::InputHandler() {
+  Command* com = new TestCommand();
+  buttonW = com;
+  buttonA = com;
+  buttonS = com;
+  buttonD = com;
+}
+
+Command* InputHandler::handleInput() {
+  if(cur == commandStream.size()) {
+    return NULL;
+  }
+  return commandStream[cur++];
+}
+
+void InputHandler::inputEvent(SDL_Event *e) {
+  switch(e->key.keysym.sym) {
+    case SDLK_w:
+                commandStream.push_back(buttonW);
+                break;
+
+    case SDLK_a:
+                commandStream.push_back(buttonA);
+                break;
+
+    case SDLK_s:
+                commandStream.push_back(buttonS);
+                break;
+
+    case SDLK_d:
+                commandStream.push_back(buttonD);
+                break;
+    default:
+            break;
+  }
+
+}
+
+InputHandler::~InputHandler() {
+  delete buttonW;
+  /*delete buttonA;
+  delete buttonS;
+  delete buttonD;*/
+}

src/input/InputHandler.h

@@ -0,0 +1,26 @@
+#ifndef INPUTHANDLER_H
+#define INPUTHANDLER_H
+
+#include <vector>
+#include <SDL2/SDL.h>
+#include "commands/TestCommand.h"
+
+
+class InputHandler {
+private:
+    Command* buttonW = NULL;
+    Command* buttonA = NULL;
+    Command* buttonS = NULL;
+    Command* buttonD = NULL;
+
+    unsigned int cur = 0;
+    std::vector<Command*> commandStream;
+
+public:
+    InputHandler();
+    ~InputHandler();
+    void inputEvent(SDL_Event *e);
+    Command* handleInput();
+};
+
+#endif // INPUTHANDLER_H

src/input/commands/Command.h

@@ -0,0 +1,11 @@
+#ifndef COMMAND_H
+#define COMMAND_H
+
+class Command {
+public:
+  virtual ~Command() {}
+  virtual void execute() = 0;
+
+};
+
+#endif // COMMAND_H

src/input/commands/TestCommand.cpp

@@ -0,0 +1,6 @@
+#include <iostream>
+#include "TestCommand.h"
+
+void TestCommand::execute() {
+    std::cout << "Test Command launched!" << std::endl;
+}

src/input/commands/TestCommand.h

@@ -0,0 +1,11 @@
+#ifndef TESTCOMMAND_H
+#define TESTCOMMAND_H
+
+#include "Command.h"
+
+class TestCommand : public Command {
+public:
+  virtual void execute();
+};
+
+#endif //TESTCOMMAND_H

src/utility/Utility.h

@@ -0,0 +1,12 @@
+#ifndef UTILITY_H
+#define UTILITY_H
+
+#include <string>
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_image.h>
+
+namespace utility {
+  SDL_Texture* loadTexture( std::string path, SDL_Renderer* gRenderer );
+}
+
+#endif // UTILITY_H

src/utility/Utitlity.cpp

@@ -0,0 +1,26 @@
+#include "utility.h"
+
+namespace utility {
+
+    SDL_Texture* loadTexture( std::string path, SDL_Renderer* gRenderer ) {
+      //The final texture
+      SDL_Texture* newTexture = NULL;
+
+      //Load image at specified path
+      SDL_Surface* loadedSurface = IMG_Load( path.c_str() );
+      if( loadedSurface == NULL ) {
+          printf( "Unable to load image %s! SDL_image Error: %s\n", path.c_str(), IMG_GetError() );
+      }
+      else {
+          //Create texture from surface pixels
+          newTexture = SDL_CreateTextureFromSurface( gRenderer, loadedSurface );
+          if( newTexture == NULL ) {
+            printf( "Unable to create texture from %s! SDL Error: %s\n", path.c_str(), SDL_GetError() );
+          }
+          //Get rid of old loaded surface
+              SDL_FreeSurface( loadedSurface );
+      }
+      return newTexture;
+    }
+
+}