Added timeline

include/dawn/dawn.h

@@ -6,10 +6,9 @@
 #pragma once
 #include "libs.h"
 
-// Animation
-#include "animation/easing.h"
-
 // Display / Rendering
+#include "display/animation/easing.h"
+#include "display/animation/timeline.h"
 #include "display/debug/grid.h"
 
 #include "display/gui/bitmapfont.h"

include/dawn/display/animation/easing.h

@@ -5,7 +5,6 @@
  * https://opensource.org/licenses/MIT
  */
 #pragma once
-#include "../libs.h"
 
 /**
  * Returns the ease time for a given real time duration span.

include/dawn/display/animation/timeline.h

@@ -0,0 +1,55 @@
+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "../../libs.h"
+
+/** Type forwarder for timeline_t */
+typedef struct _timeline_t timeline_t;
+
+/** Callback for when a timeline event occurs */
+typedef void timelinecallback_t(timeline_t*);
+
+typedef struct test_t {
+  /**
+   * The time that this action should occur within the timeline
+   * set to 0 or less to start immediately.
+   */
+  float start;
+
+  /**
+   * The duration of the action, this will decide for how long onDuration will
+   * be called for, and when onEnd should be called.
+   * Set to a negative number to have this continue forever.
+   * Set to 0 to only fire the onStart. 
+   * onStart can fire with either onDuration and onEnd on the same frame, but
+   * onEnd and onDuration cannot fire the same frame.
+   */
+  float duration;
+
+  timelinecallback_t *onStart;
+  timelinecallback_t *onDuration;
+  timelinecallback_t *onEnd;
+} timelineaction_t;
+
+typedef struct _timeline_t {
+  /** The current time as far as the timeline is concerned */
+  float current;
+  
+  /** The time of the last "frame" as far as the timeline is concerned */
+  float previous;
+
+  /** The frame time diff, essentially current = previous + diff */
+  float diff;
+
+  /** User pointer, allows you to point to some other data */
+  void *user;
+
+  /** Actions within the timeline */
+  timelineaction_t actions[128];
+  uint8_t actionCount;
+} timeline_t;

src/display/animation/timeline.c

@@ -0,0 +1,79 @@
+/**
+ * Copyright (c) 2021 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "timeline.h"
+
+void onDone(timeline_t *test) {
+}
+
+void timelineInit(timeline_t *timeline) {
+  timeline->current = 0;
+  timeline->diff = 0;
+  timeline->previous = 0;
+  timeline->user = 0;
+  timeline->actionCount = 0;
+  
+  timeline->actions[0].onStart = &onDone;
+}
+
+void timelineUpdate(timeline_t *timeline, float delta) {
+  uint8_t i;
+  timelineaction_t *action;
+  float full;
+
+  timeline->diff = delta;
+  timeline->previous = timeline->current;
+  timeline->current = timeline->current + delta;
+
+  // Find all actions that would have started or ended in this timespan.
+  for(i = 0; i < timeline->actionCount; i++) {
+    action = timeline->actions +i;
+
+    // Has the action started yet?
+    if(action->start > timeline->current) continue;
+
+    // Did we start this frame?
+    if(action->start > timeline->previous && action->onStart != NULL) {
+      action->onStart(timeline);
+    }
+
+    // Durations of 0 only fire starts, never ends or durations.
+    if(action->duration == 0) continue;
+
+    // Is the end still in the future? Durations in negatives go forever
+    full = action->start+action->duration;
+    if(action->duration < 0 || full > timeline->current) {
+      if(action->onDuration != NULL) action->onDuration(timeline);
+    } else if(full > timeline->previous) {// Did we end this frame?
+      if(action->onEnd != NULL) action->onEnd(timeline);
+    }
+  }
+}
+
+bool timelineIsFinished(timeline_t *timeline) {
+  uint8_t i;
+  timelineaction_t *action;
+
+  for(i = 0; i < timeline->actionCount; i++) {
+    action = timeline->actions +i;
+    if(action->start > timeline->current) return false;
+    if(action->duration < 0) return false;
+    if(action->duration == 0) continue;
+    if(action->start+action->duration > timeline->current) return false;
+  }
+
+  return true;
+}
+
+timelineaction_t * timelineAddAction(timeline_t *timeline, float start,
+  float duration
+) {
+  timelineaction_t *action = timeline->actions + (timeline->actionCount++);
+  action->start = start, action->duration = duration;
+  action->onStart = action->onEnd = action->onDuration = NULL;
+  return action;
+}

src/display/animation/timeline.h

@@ -0,0 +1,15 @@
+// Copyright (c) 2021 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include <dawn/dawn.h>
+
+void timelineInit(timeline_t *timeline);
+void timelineUpdate(timeline_t *timeline, float delta);
+bool timelineIsFinished(timeline_t *timeline);
+
+timelineaction_t * timelineAddAction(timeline_t *timeline, float start,
+  float duration
+);

src/game/game.c

@@ -7,15 +7,35 @@
 
 #include "game.h"
 
+timeline_t TIMELINE_TEST;
+
+void onStart(timeline_t *tl) {
+  printf("Action started %f\n", tl->current);
+}
+
+void onDuration(timeline_t *tl) {
+  printf("Action duration %f\n", tl->current);
+}
+
+void onEnd(timeline_t *tl) {
+  printf("Action ended %f\n", tl->current);
+}
+
 bool gameInit(game_t *game) {
   // Init the game
   game->name = GAME_NAME;
 
   // Init the engine and the rendering pipeline
   engineInit(&game->engine, game);
+
+  timelineInit(&TIMELINE_TEST);
+  timelineaction_t *action = timelineAddAction(&TIMELINE_TEST, 1, 1);
+  action->onStart = &onStart;
+  action->onDuration = &onDuration;
+  action->onEnd = &onEnd;
   
   // Hand off to the poker logic.
-  pokerInit(&game->poker, &game->engine);
+  // pokerInit(&game->poker, &game->engine);
 
   return true;
 }
@@ -25,7 +45,14 @@ bool gameUpdate(game_t *game, float platformDelta) {
   engineUpdateStart(&game->engine, game, platformDelta);
 
   // Hand off to the poker logic
-  pokerUpdate(&game->poker, &game->engine);
+  // pokerUpdate(&game->poker, &game->engine);
+
+  timelineUpdate(&TIMELINE_TEST, platformDelta);
+  if(timelineIsFinished(&TIMELINE_TEST)) {
+    printf("Timeline finished\n");
+  } else {
+    printf("Timeline not finished\n");
+  }
 
   // Hand back to the engine.
   return engineUpdateEnd(&game->engine, game);

src/game/game.h

@@ -9,7 +9,7 @@
 #include "../poker/poker.h"
 
 #include "../poker/card.h"
-#include "../util/array.h"
+#include "../display/animation/timeline.h"
 
 /**
  * Initialize the game context.

src/poker/round/match.c

@@ -27,8 +27,13 @@ void pokerMatchInit(poker_t *poker, engine_t *engine) {
 }
 
 void pokerMatchUpdate(poker_t *poker, engine_t *engine) {
+  // Ease into the game.
   float t = easeTimeToEase(poker->roundMatch.time, engine->time.current, 5);
-  pokerLookAtPlayer(
-    &poker->cameraWorld, POKER_SEAT_PLAYER0, 1 - easeOutQuint(t)
-  );
+  pokerLookAtPlayer(&poker->cameraWorld, POKER_SEAT_PLAYER0, (
+    t < 1 ? 1 - easeOutQuart(t) : 0
+  ));
+
+  if(t > 0.75) {
+    pokerTalk(poker, "Hello World");
+  }
 }