library-ized ticks

7 files changed, 200 insertions, 46 deletions

diff --git a/src/entities.cpp b/src/entities.cpp
index 16ba768..631521b 100644
--- a/src/entities.cpp
+++ b/src/entities.cpp
@@ -4,13 +4,13 @@
 #include <sstream>
 
 #include <ui.hpp>
+#include <gametime.hpp>
 
 extern std::istream *names;
 
 extern Player *player;			// main.cpp
 extern World *currentWorld;		// main.cpp
 extern unsigned int loops;		// main.cpp
-extern unsigned int tickCount;	// main.cpp
 
 extern std::string xmlFolder;
 
@@ -711,6 +711,8 @@ void Mob::wander(int timeRun) {
 	static unsigned int heya=0,hi=0;
 	static bool YAYA = false;
 
+	auto deltaTime = gtime::getDeltaTime();
+
 	if (forcedMove)
 		return;
 
@@ -763,7 +765,7 @@ void Mob::wander(int timeRun) {
 		break;
 	case MS_BIRD:
 		if (loc.y<=init_y-.2)vel.y=.02*deltaTime;	// TODO handle direction
-		vel.x=.02*deltaTime;
+		vel.x = 0.02f * deltaTime;
 		if (++heya==200) {heya=0;hi^=1;}
 		if (hi)vel.x*=-1;
 		break;
@@ -785,6 +787,60 @@ void Mob::wander(int timeRun) {
 	}
 }
 
+Particles::Particles(float x, float y, float w, float h, float vx, float vy, Color c, float d)
+{
+	loc = vec2 {x, y};
+	vel = vec2 {vx, vy};
+	width = w;
+	height = h;
+	color = c;
+	duration = d;
+	gravity = true;
+	fountain = false;
+	behind = false;
+	bounce = false;
+	index = Texture::getIndex(c);
+}
+
+void Particles::draw(void) const
+{
+	glColor3ub(255, 255, 255);
+	glBegin(GL_QUADS);
+		vec2 tc = vec2 {0.25f * index.x, 0.125f * index.y};
+		glTexCoord2f(tc.x, tc.y); glVertex2i(loc.x        , loc.y);
+		glTexCoord2f(tc.x, tc.y); glVertex2i(loc.x + width, loc.y);
+		glTexCoord2f(tc.x, tc.y); glVertex2i(loc.x + width, loc.y + height);
+		glTexCoord2f(tc.x, tc.y); glVertex2i(loc.x        , loc.y + height);
+	glEnd();
+}
+
+void Particles::update(float _gravity, float ground_y)
+{
+	// handle ground collision
+	if (loc.y < ground_y) {
+		loc.y = ground_y;
+
+		// handle bounce
+		if (bounce) {
+			vel.y *= -0.2f;
+			vel.x /= 4.0f;
+		} else {
+			vel = 0.0f;
+			canMove = false;
+		}
+	}
+
+	// handle gravity
+	else if (gravity && vel.y > -1.0f) {
+		vel.y -= _gravity * gtime::getDeltaTime();
+	}
+}
+
+bool Particles::kill(float delta)
+{
+	return (duration -= delta) <= 0;
+}
+
 void Player::save(void) {
 	std::string data;
 	std::ofstream out ("xml/main.dat",std::ios::out | std::ios::binary);
@@ -793,7 +849,7 @@ void Player::save(void) {
 	data.append(std::to_string((int)loc.y) + "\n");
 	data.append(std::to_string((int)health) + "\n");
 	data.append(std::to_string((int)maxHealth) + "\n");
-	data.append(std::to_string((int)tickCount) + "\n");
+	data.append(std::to_string((int)gtime::getTickCount()) + "\n");
 
 	data.append(std::to_string((int)inv->items.size()) + "\n");
 	for(auto &i : inv->items)
@@ -835,7 +891,7 @@ void Player::sspawn(float x,float y) {
 		std::getline(data,ddata);
 		maxHealth = std::stoi(ddata);
 		std::getline(data,ddata);
-		tickCount = std::stoi(ddata);
+		gtime::tick(std::stoi(ddata));
 
 		std::getline(data,ddata);
 		for(i = std::stoi(ddata);i;i--) {
diff --git a/src/gameplay.cpp b/src/gameplay.cpp
index 603ede7..d5969ac 100644
--- a/src/gameplay.cpp
+++ b/src/gameplay.cpp
@@ -22,10 +22,6 @@ std::vector<XMLElement *> dopt;
 
 void destroyEverything(void);
 
-inline void segFault() {
-	(*((int *)NULL))++;
-}
-
 int commonAIFunc(NPC *speaker)
 {
 	XMLDocument xml;
@@ -249,18 +245,6 @@ void initEverything(void) {
 		}
 	}
 
-	pauseMenu.items.push_back(ui::menu::createParentButton({-256/2,0},{256,75},{0.0f,0.0f,0.0f}, "Resume"));
-	pauseMenu.items.push_back(ui::menu::createChildButton({-256/2,-100},{256,75},{0.0f,0.0f,0.0f}, "Options"));
-	pauseMenu.items.push_back(ui::menu::createButton({-256/2,-200},{256,75},{0.0f,0.0f,0.0f}, "Save and Quit", ui::quitGame));
-	pauseMenu.items.push_back(ui::menu::createButton({-256/2,-300},{256,75},{0.0f,0.0f,0.0f}, "Segfault", segFault));
-	pauseMenu.child = &optionsMenu;
-
-
-	optionsMenu.items.push_back(ui::menu::createSlider({0-(float)SCREEN_WIDTH/4,0-(512/2)}, {50,512}, {0.0f, 0.0f, 0.0f}, 0, 100, "Master", &VOLUME_MASTER));
-	optionsMenu.items.push_back(ui::menu::createSlider({-200,100}, {512,50}, {0.0f, 0.0f, 0.0f}, 0, 100, "Music", &VOLUME_MUSIC));
-	optionsMenu.items.push_back(ui::menu::createSlider({-200,000}, {512,50}, {0.0f, 0.0f, 0.0f}, 0, 100, "SFX", &VOLUME_SFX));
-	optionsMenu.parent = &pauseMenu;
-
 	/*
 	 * Spawn the player and begin the game.
 	 */
@@ -268,6 +252,8 @@ void initEverything(void) {
 	player = new Player();
 	player->sspawn(0,100);
 
+	ui::menu::init();
+
 	currentWorld->bgmPlay(NULL);
 	atexit(destroyEverything);
 }
diff --git a/src/gametime.cpp b/src/gametime.cpp
new file mode 100644
index 0000000..be63885
--- /dev/null
+++ b/src/gametime.cpp
@@ -0,0 +1,50 @@
+#include <gametime.hpp>
+
+#include <common.hpp>
+
+static unsigned int tickCount = 0;
+static unsigned int deltaTime = 1;
+
+// millisecond timers
+static unsigned int currentTime = 0;
+static unsigned int prevTime, prevPrevTime;
+
+namespace gtime {
+    void setTickCount(unsigned int t) {
+        tickCount = t;
+    }
+
+    unsigned int getTickCount(void) {
+        return tickCount;
+    }
+
+    unsigned int getDeltaTime(void) {
+        return deltaTime;
+    }
+
+    void tick(void) {
+        tickCount++;
+    }
+
+    void tick(unsigned int ticks) {
+        tickCount += ticks;
+    }
+
+    void mainLoopHandler(void) {
+    	if (!currentTime)
+    		currentTime = prevTime = millis();
+
+    	currentTime = millis();
+    	deltaTime	= currentTime - prevTime;
+    	prevTime	= currentTime;
+    }
+
+    bool tickHasPassed(void) {
+        if (prevPrevTime + MSEC_PER_TICK <= currentTime) {
+    		prevPrevTime = currentTime;
+            return true;
+    	}
+
+        return false;
+    }
+}
diff --git a/src/inventory.cpp b/src/inventory.cpp
index 4cf5fda..34d99ed 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -1,6 +1,7 @@
 #include <inventory.hpp>
 #include <entities.hpp>
 #include <ui.hpp>
+#include <gametime.hpp>
 
 #include <tinyxml2.h>
 using namespace tinyxml2;
@@ -230,6 +231,8 @@ void Inventory::draw(void) {
 	static vec2 mouseStart = {0,0};
 	C("End define");
 
+	auto deltaTime = gtime::getDeltaTime();
+
 	for (auto &r : iray) {
 		r.start.x = player->loc.x + (player->width  / 2);
 		r.start.y = player->loc.y + (player->height / 2);
@@ -594,7 +597,7 @@ int Inventory::useItem(void)
 				}
 
 				if (up)
-					hangle += 0.325f * dir * deltaTime;
+					hangle += 0.325f * dir * gtime::getDeltaTime();
 
 				if (!player->left) {
 					if (hangle <= -90)
diff --git a/src/ui.cpp b/src/ui.cpp
index 30d08a2..8d3762d 100644
--- a/src/ui.cpp
+++ b/src/ui.cpp
@@ -1,8 +1,8 @@
 #include <ui.hpp>
 
-extern std::vector<menuItem> optionsMenu;
+#include <gametime.hpp>
+
 extern Menu* currentMenu;
-extern Menu pauseMenu;
 
 extern SDL_Window *window;
 
@@ -27,7 +27,6 @@ extern std::vector<NPC *> aipreload;
 */
 
 extern bool gameRunning;
-extern unsigned int tickCount;
 
 /*
  *	Freetype variables
@@ -73,10 +72,10 @@ extern void mainLoop(void);
  * Fade effect flags
  */
 
-bool fadeEnable = false;
-bool fadeWhite  = false;
-bool fadeFast   = false;
-unsigned int fadeIntensity = 0;
+static bool fadeEnable = false;
+static bool fadeWhite  = false;
+static bool fadeFast   = false;
+static unsigned int fadeIntensity = 0;
 
 bool inBattle = false;
 Mix_Chunk *battleStart;
@@ -411,6 +410,8 @@ namespace ui {
 							linc=0,	//	Contains the number of letters that should be drawn.
 							size=0;	//	Contains the full size of the current string.
 
+		auto tickCount = gtime::getTickCount();
+
 		// reset values if a new string is being passed.
 		if (!linc || ret.substr(0, linc) != str.substr(0, linc)) {
 			tickk = tickCount + tadv;
@@ -653,7 +654,7 @@ namespace ui {
 			if (dialogImportant) {
 				setFontColor(255,255,255);
 				if (dialogPassive) {
-					dialogPassiveTime -= deltaTime;
+					dialogPassiveTime -= gtime::getDeltaTime();
 					if (dialogPassiveTime < 0) {
 						dialogPassive = false;
 						dialogImportant = false;
@@ -784,7 +785,8 @@ namespace ui {
 					Mix_PlayChannel(1, dialogClick, 0);
 			}
 
-		}if (!fadeIntensity) {
+		}
+		if (!fadeIntensity) {
 			vec2 hub = {
 				(SCREEN_WIDTH/2+offset.x)-fontSize*10,
 				(offset.y+SCREEN_HEIGHT/2)-fontSize
@@ -1009,7 +1011,7 @@ EXIT:
 					tmp = currentWorld;
 					switch(SDL_KEY) {
 					case SDLK_t:
-						tickCount += 50;
+						gtime::tick(50);
 						break;
 					case SDLK_a:
 						if (fadeEnable)break;
@@ -1108,7 +1110,7 @@ EXIT:
 
 			case SDL_KEYUP:
 				if (SDL_KEY == SDLK_ESCAPE) {
-					currentMenu = &pauseMenu;
+					ui::menu::toggle();
 					player->save();
 					return;
 				}
@@ -1216,6 +1218,43 @@ EXIT:
 		}
 	}
 
+	void drawFade(void) {
+		if (!fadeIntensity) {
+			if (fontSize != 16)
+				setFontSize(16);
+			return;
+		}
+
+		if (fadeWhite)
+			safeSetColorA(255, 255, 255, fadeIntensity);
+		else
+			safeSetColorA(0, 0, 0, fadeIntensity);
+
+		glRectf(offset.x - SCREEN_WIDTH  / 2,
+				offset.y - SCREEN_HEIGHT / 2,
+				offset.x + SCREEN_WIDTH  / 2,
+				offset.y + SCREEN_HEIGHT / 2
+			    );
+	}
+
+	void fadeUpdate(void) {
+		if (fadeEnable) {
+			if (fadeIntensity < 150)
+				fadeIntensity += fadeFast ? 40 : 10;
+			else if (fadeIntensity < 255)
+				fadeIntensity += fadeFast ? 20 : 5;
+			else
+				fadeIntensity = 255;
+		} else {
+			if (fadeIntensity > 150)
+				fadeIntensity -= fadeFast ? 20 : 5;
+			else if (fadeIntensity > 0)
+				fadeIntensity -= fadeFast ? 40 : 10;
+			else
+				fadeIntensity = 0;
+		}
+	}
+
 	void toggleBlack(void) {
 		fadeEnable ^= true;
 		fadeWhite   = false;
diff --git a/src/ui_menu.cpp b/src/ui_menu.cpp
index cd11dae..0c7a6d8 100644
--- a/src/ui_menu.cpp
+++ b/src/ui_menu.cpp
@@ -3,7 +3,9 @@
 extern bool gameRunning;
 
 extern Menu *currentMenu;
-extern Menu pauseMenu;
+
+static Menu pauseMenu;
+static Menu optionsMenu;
 
 void Menu::gotoParent(void)
 {
@@ -20,10 +22,13 @@ void Menu::gotoChild(void)
 	currentMenu = child;
 }
 
+inline void segFault() {
+	(*((int *)NULL))++;
+}
+
 namespace ui {
     namespace menu {
-        menuItem createButton(vec2 l, dim2 d, Color c, const char* t, menuFunc f)
-		{
+        menuItem createButton(vec2 l, dim2 d, Color c, const char* t, menuFunc f) {
             menuItem temp;
 
             temp.member = 0;
@@ -36,8 +41,7 @@ namespace ui {
             return temp;
         }
 
-        menuItem createChildButton(vec2 l, dim2 d, Color c, const char* t)
-		{
+        menuItem createChildButton(vec2 l, dim2 d, Color c, const char* t) {
             menuItem temp;
 
             temp.member = -1;
@@ -50,8 +54,7 @@ namespace ui {
             return temp;
         }
 
-        menuItem createParentButton(vec2 l, dim2 d, Color c, const char* t)
-		{
+        menuItem createParentButton(vec2 l, dim2 d, Color c, const char* t) {
             menuItem temp;
 
             temp.member = -2;
@@ -64,8 +67,7 @@ namespace ui {
             return temp;
         }
 
-        menuItem createSlider(vec2 l, dim2 d, Color c, float min, float max, const char* t, float* v)
-		{
+        menuItem createSlider(vec2 l, dim2 d, Color c, float min, float max, const char* t, float* v) {
             menuItem temp;
 
             temp.member = 1;
@@ -81,8 +83,24 @@ namespace ui {
             return temp;
         }
 
-        void draw(void)
-		{
+		void init(void) {
+			pauseMenu.items.push_back(ui::menu::createParentButton({-256/2,0},{256,75},{0.0f,0.0f,0.0f}, "Resume"));
+			pauseMenu.items.push_back(ui::menu::createChildButton({-256/2,-100},{256,75},{0.0f,0.0f,0.0f}, "Options"));
+			pauseMenu.items.push_back(ui::menu::createButton({-256/2,-200},{256,75},{0.0f,0.0f,0.0f}, "Save and Quit", ui::quitGame));
+			pauseMenu.items.push_back(ui::menu::createButton({-256/2,-300},{256,75},{0.0f,0.0f,0.0f}, "Segfault", segFault));
+			pauseMenu.child = &optionsMenu;
+
+			optionsMenu.items.push_back(ui::menu::createSlider({0-(float)SCREEN_WIDTH/4,0-(512/2)}, {50,512}, {0.0f, 0.0f, 0.0f}, 0, 100, "Master", &VOLUME_MASTER));
+			optionsMenu.items.push_back(ui::menu::createSlider({-200,100}, {512,50}, {0.0f, 0.0f, 0.0f}, 0, 100, "Music", &VOLUME_MUSIC));
+			optionsMenu.items.push_back(ui::menu::createSlider({-200,000}, {512,50}, {0.0f, 0.0f, 0.0f}, 0, 100, "SFX", &VOLUME_SFX));
+			optionsMenu.parent = &pauseMenu;
+		}
+
+		void toggle(void) {
+			currentMenu = &pauseMenu;
+		}
+
+        void draw(void) {
             SDL_Event e;
 
             setFontSize(24);
diff --git a/src/world.cpp b/src/world.cpp
index 37d899d..c5ed9d0 100644
--- a/src/world.cpp
+++ b/src/world.cpp
@@ -10,6 +10,7 @@
 
 // local game headers
 #include <ui.hpp>
+#include <gametime.hpp>
 
 // local library headers
 #include <tinyxml2.h>
@@ -36,7 +37,6 @@ extern World       *currentWorld;			// main.cpp
 extern World       *currentWorldToLeft;		// main.cpp
 extern World       *currentWorldToRight;	// main.cpp
 extern bool         inBattle;               // ui.cpp?
-extern unsigned int tickCount;				// main.cpp
 extern std::string  xmlFolder;
 
 
@@ -543,6 +543,8 @@ singleDetect(Entity *e)
 	unsigned int i;
 	int l;
 
+    auto deltaTime = gtime::getDeltaTime();
+
 	// kill dead entities
 	if (!e->isAlive()) {
         return;
@@ -1356,7 +1358,7 @@ singleDetect(Entity *e)
     }
 
     if (e->vel.y > -2)
-        e->vel.y -= GRAVITY_CONSTANT * deltaTime;
+        e->vel.y -= GRAVITY_CONSTANT * gtime::getDeltaTime();
 
     if (e->ground) {
         e->loc.y = ceil(e->loc.y);
@@ -1761,7 +1763,7 @@ loadWorldFromXMLNoSave(std::string path) {
 		} else if (name == "hill") {
 			tmp->addHill(ivec2 { wxml->IntAttribute("peakx"), wxml->IntAttribute("peaky") }, wxml->UnsignedAttribute("width"));
 		} else if (name == "time") {
-            tickCount = std::stoi(wxml->GetText());
+            gtime::setTickCount(std::stoi(wxml->GetText()));
         } else if (Indoor && name == "floor") {
             if (wxml->QueryFloatAttribute("start",&spawnx) == XML_NO_ERROR)
                 Indoorp(tmp)->addFloor(wxml->UnsignedAttribute("width"), spawnx);