Added input manager final version

src/dawn/dawngame.c

@@ -23,8 +23,8 @@ game_t * gameInit(platform_t *platform) {
   return game;
 }
 
-void gameUpdate(game_t *game) {
-  engineUpdate(game->engine);
+uint32_t gameUpdate(game_t *game) {
+  return engineUpdate(game->engine);
 }
 
 void gameDispose(game_t *game) {

src/engine/engine.c

@@ -23,7 +23,7 @@ engine_t * engineInit(platform_t *platform, char *name, uint32_t inputCount) {
   }
 
   // Setup the input manager.
-  engine->input = inputInit(inputCount);
+  engine->input = inputInit(inputCount, platform->inputSourceCount);
   if(engine->input == NULL) {
     free(engine->render);
     free(engine);
@@ -33,9 +33,11 @@ engine_t * engineInit(platform_t *platform, char *name, uint32_t inputCount) {
   return engine;
 }
 
-void engineUpdate(engine_t *engine) {
+uint32_t engineUpdate(engine_t *engine) {
   renderFrame(engine->render);
   inputUpdate(engine->input);
+
+  return 0;
 }
 
 bool engineDispose(engine_t *engine) {

src/engine/engine.h

@@ -39,8 +39,9 @@ engine_t * engineInit(platform_t *platform, char *name, uint32_t inputCount);
  * Start the main engine loop.
  * 
  * @param engine The game to start the loop for.
+ * @return 0 if success (and loop to continue), 1 for non error terminate.
  */
-void engineUpdate(engine_t *engine);
+uint32_t engineUpdate(engine_t *engine);
 
 /**
  * Cleanup a previously constructed game engine instance.

src/engine/game/game.h

@@ -27,8 +27,9 @@ game_t * gameInit(platform_t *platform);
  * Start the main game loop.
  * 
  * @param game The game to start the loop for.
+ * @return Refer to engineUpdate. 0 for loop continue, 1 for safe exit.
  */
-void gameUpdate(game_t *game);
+uint32_t gameUpdate(game_t *game);
 
 /**
  * Cleanup a previously constructed.

src/engine/input/input.c

@@ -7,7 +7,7 @@
 
 #include "input.h"
 
-input_t * inputInit(uint32_t inputBindCount) {
+input_t * inputInit(uint32_t inputBindCount, uint32_t inputSourceCount) {
   uint32_t i;
 
   // Create the input manager
@@ -22,27 +22,45 @@ input_t * inputInit(uint32_t inputBindCount) {
   }
 
   // Create the current & previous input states
-  input->current = malloc(sizeof(float) * inputBindCount);
-  input->previous = malloc(sizeof(float) * inputBindCount);
+  input->current = malloc(sizeof(inputval_t) * inputBindCount);
+  input->previous = malloc(sizeof(inputval_t) * inputBindCount);
 
   // Create the input actuate times array.
   input->times = malloc(sizeof(float) * inputBindCount);
 
+  // Create the buffer, zero all the values out.
+  size_t size = sizeof(inputval_t) * inputSourceCount;
+  input->buffer = malloc(size);
+  memset(input->buffer, 0, size);
+
   // Pass off the input manager
   return input;
 }
 
 void inputUpdate(input_t *input) {
   uint32_t i;
+  listentry_t *item;
+  inputval_t value;
 
   // Flip the states to save memory.
   float * currentCurrent = input->current;
   input->current = input->previous;
   input->previous = currentCurrent;
 
-  // Now look at each bind, get the state from the platform
+  // Now look at each bind...
   for(i = 0; i < input->inputBindCount; i++) {
-    // For this bind, get the sources.
+    // Now get the list of input sources bound to this input
+    item = input->bindMap[i]->start;
+    value = 0;
+
+    // For each input source, add the value from the buffer
+    while(item != NULL) {
+      value += input->buffer[(inputsource_t)item->data];
+      item = item->next;
+    }
+
+    // Set to the current state.
+    input->current[i] = value;
   }
 }
 
@@ -54,6 +72,7 @@ void inputDispose(input_t *input) {
     listDispose(input->bindMap[i], false);
   }
 
+  free(input->buffer);
   free(input->times);
   free(input->previous);
   free(input->current);
@@ -61,13 +80,11 @@ void inputDispose(input_t *input) {
   free(input);
 }
 
-void inputBind(input_t *input, inputbind_t bind, inputsource_t *source) {
+void inputBind(input_t *input, inputbind_t bind, inputsource_t source) {
   listAdd(input->bindMap[bind], source);
 }
 
-void inputUnbind(input_t *input, inputbind_t bind,
-  inputsource_t *source
-) {
+void inputUnbind(input_t *input, inputbind_t bind, inputsource_t source) {
   listRemove(input->bindMap[bind], source);
 }
 
@@ -87,13 +104,10 @@ bool inputIsPressed(input_t *input, inputbind_t binding) {
 }
 
 bool inputIsReleased(input_t *input, inputbind_t binding) {
-  return (
-    input->current[binding] == 0 &&
-    input->previous[binding] != 0
-  );
+  return input->current[binding] == 0 && input->previous[binding] != 0;
 }
 
-float inputGetAxis(input_t *input, inputbind_t binding) {
+inputval_t inputGetAxis(input_t *input, inputbind_t binding) {
   return input->current[binding];
 }
 

src/engine/input/input.h

@@ -7,12 +7,12 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <malloc.h>
+#include <string.h>
 #include "../util/list/list.h"
 #include "../platform.h"
 
 /////////////////////////////////// CONSTANTS //////////////////////////////////
 #define INPUT_NULL (inputbind_t)0x00
-#define INPUT_INPUTS_PER_BIND
 
 /////////////////////////////// Type Definitions ///////////////////////////////
 /**
@@ -20,7 +20,19 @@
  * e.g. "Jump" or "Walk Forward".
  */
 typedef uint8_t inputbind_t;
-typedef platforminput_t inputsource_t;
+
+/**
+ * Input source identifier. It's up to the platform itself to decide what the
+ * hell this number refers to. For most platforms it will be an input, such as a
+ * keyboard scancode or a (pad number * button count) + button.
+ */
+typedef uint32_t inputsource_t;
+
+/**
+ * Value that represents the state of an input. Defined as 0-1 where 0 is set
+ * to be completely off / netural state, and 1 is completely on / full state.
+ */
+typedef float inputval_t;
 
 /**
  * Structure for the entire input mapping.
@@ -30,10 +42,16 @@ typedef struct {
   uint32_t inputBindCount;
 
   /** Float of the input between 0 and 1. For teh current frame */
-  float *current;
+  inputval_t *current;
 
   /** Float of the input between 0 and 1. For the last frame */
-  float *previous;
+  inputval_t *previous;
+
+  /**
+   * Input buffer array. Keeps track of raw values from the inputs.
+   * The engine will read from the buffer when necessary.
+   */
+  inputval_t *buffer;
 
   /** Float of the GameTime that the input was actuated last. */
   float *times;
@@ -51,9 +69,10 @@ typedef struct {
  * Initializes the input manager.
  * 
  * @param inputCount The input binding counts to allow for.
+ * @param inputSourceCount The input source count to allow for.
  * @return The input manager
  */
-input_t * inputInit(uint32_t inputBindCount);
+input_t * inputInit(uint32_t inputBindCount, uint32_t inputSourceCount);
 
 /**
  * Tick the input manager.
@@ -75,7 +94,7 @@ void inputDispose(input_t *input);
  * @param bind The binding to bind against.
  * @param source The source that is being bound.
  */
-void inputBind(input_t *input, inputbind_t bind, inputsource_t *source);
+void inputBind(input_t *input, inputbind_t bind, inputsource_t source);
 
 /**
  * Unbind a previously bound input source from a binding. This method is costly.
@@ -84,7 +103,7 @@ void inputBind(input_t *input, inputbind_t bind, inputsource_t *source);
  * @param bind The binding to unbind from.
  * @param source The source that is being unbound.
  */
-void inputUnbind(input_t *input, inputbind_t bind, inputsource_t *source);
+void inputUnbind(input_t *input, inputbind_t bind, inputsource_t source);
 
 /**
  * Is the current input "down", not being pressed, being moved, not in a state
@@ -130,9 +149,9 @@ bool inputIsReleased(input_t *input, inputbind_t binding);
  * 
  * @param input The input manager to check against.
  * @param binding The previously bound input binding.
- * @return A float between 0 and 1 representing the action force of the input.
+ * @return Input state of the axis.
  */
-float inputGetAxis(input_t *input, inputbind_t binding);
+inputval_t inputGetAxis(input_t *input, inputbind_t binding);
 
 /**
  * Returns a raw input value between -1 and 1 between two axis. This would be

src/engine/platform.h

@@ -26,7 +26,6 @@ typedef struct {
   /** Dimensions of the screen (in pixels) */
   uint32_t screenWidth, screenHeight;
 
-  int32_t inputSourceCount;
-  float *inputValues;
-  platforminput_t *inputSource;
+  /** Count of input sources that exist in engine. */
+  uint32_t inputSourceCount;
 } platform_t;

src/platform/glfw/glwfwplatform.c

@@ -5,19 +5,18 @@
 
 #include "glwfwplatform.h"
 
-GLFWwindow *window;
-game_t *runningGame;
+GLFWwindow *window = NULL;
+game_t *runningGame = NULL;
 
 int32_t main() {
   // Create out platform context
   platform_t platform = {
     .name = "glfw",
+
     .screenWidth = WINDOW_WIDTH_DEFAULT,
     .screenHeight = WINDOW_HEIGHT_DEFAULT,
 
-    .inputSourceCount = 0,
-    .inputValues = NULL,
-    .inputSource = NULL
+    .inputSourceCount = 400
   };
 
   // Attempt to init GLFW
@@ -46,9 +45,13 @@ int32_t main() {
   engine_t *engine = gameGetEngine(runningGame);
   glfwSetWindowTitle(window, engine->name);
 
+  // Bind inputs
+  inputBind(engine->input, INPUT_NULL, (inputsource_t *)GLFW_KEY_ESCAPE);
+
   // Main Render Loop
   while(!glfwWindowShouldClose(window)) {
     gameUpdate(runningGame);
+
     glfwSwapBuffers(window);
     glfwPollEvents();
   }
@@ -73,8 +76,12 @@ void glfwOnResize(GLFWwindow *window, int32_t width, int32_t height) {
 void glfwOnKey(GLFWwindow *window,
   int32_t key, int32_t scancode, int32_t action, int32_t mods
 ) {
-  float force = action == GLFW_PRESS ? 1 : 0;
+  if(runningGame == NULL) return;
+
   engine_t *engine = gameGetEngine(runningGame);
-  
-  engine->input->current[scancode] = force;
+  if(action == GLFW_PRESS) {
+    engine->input->buffer[key] = 1;
+  } else if(action == GLFW_RELEASE) {
+    engine->input->buffer[key] = 0;
+  }
 }

src/platform/glfw/glwfwplatform.h

@@ -13,6 +13,7 @@
 #include <stdint.h>
 #include "../../engine/platform.h"
 #include "../../engine/game/game.h"
+#include "../../engine/input/input.h"
 #include "../../engine/display/render.h"
 
 #define WINDOW_WIDTH_DEFAULT 480