Initial import.

src/Makefile

@@ -0,0 +1,7 @@
+all:
+	@mkdir -p build
+	@objfw-compile --lib 0.0 -o objgamekit --builddir build *.m \
+		--arc `pkg-config --cflags --libs allegro-5.0 allegro_main-5.0`
+
+clean:
+	@rm -fr build libobjgamekit.* *~

src/OGKDisplay.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#include <allegro5/allegro.h>
+
+#import <ObjFW/ObjFW.h>
+
+@interface OGKDisplay: OFObject
+{
+	ALLEGRO_DISPLAY *display;
+}
+
++ displayWithSize: (of_dimension_t)size
+       fullscreen: (BOOL)fullscreen
+	resizable: (BOOL)resizable;
+- initWithSize: (of_dimension_t)size
+    fullscreen: (BOOL)fullscreen
+     resizable: (BOOL)resizable;
+- (ALLEGRO_DISPLAY*)OGK_allegroDisplay;
+@end

src/OGKDisplay.m

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#import "OGKDisplay.h"
+
+@implementation OGKDisplay
++ (void)initialize
+{
+	if (self != [OGKDisplay class])
+		return;
+
+	if (!al_install_system(ALLEGRO_VERSION_INT, NULL))
+		@throw [OFInitializationFailedException
+		    exceptionWithClass: self];
+}
+
++ displayWithSize: (of_dimension_t)size
+       fullscreen: (BOOL)fullscreen
+	resizable: (BOOL)resizable
+{
+	return [[self alloc] initWithSize: size
+			       fullscreen: fullscreen
+				resizable: resizable];
+}
+
+- initWithSize: (of_dimension_t)size
+    fullscreen: (BOOL)fullscreen
+     resizable: (BOOL)resizable
+{
+	int flags = 0;
+
+	self = [super init];
+
+#if 0
+	/* TODO: Find a nice way to set these when requested */
+	flags |= ALLEGRO_OPENGL_3_0;
+	flags |= ALLEGRO_OPENGL_FORWARD_COMPATIBLE;
+#endif
+
+	if (fullscreen)
+		flags |= ALLEGRO_FULLSCREEN;
+	else if (resizable)
+		flags |= ALLEGRO_RESIZABLE;
+
+	al_set_new_display_flags(flags);
+	display = al_create_display(size.width, size.height);
+
+	if (display == NULL)
+		@throw [OFInitializationFailedException
+		    exceptionWithClass: [self class]];
+
+	return self;
+}
+
+- (void)dealloc
+{
+	if (display != NULL)
+		al_destroy_display(display);
+}
+
+- (ALLEGRO_DISPLAY*)OGK_allegroDisplay
+{
+	return display;
+}
+@end

src/OGKEvent.h

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#include <allegro5/allegro.h>
+
+#import <ObjFW/ObjFW.h>
+
+typedef enum ogk_event_type_t {
+	OGK_EVENT_TYPE_CLOSE = 1
+} ogk_event_type_t;
+
+@interface OGKEvent: OFObject
+{
+	ALLEGRO_EVENT event;
+}
+
+- (ALLEGRO_EVENT*)OGK_allegroEvent;
+@end
+
+@interface OGKCloseEvent: OGKEvent
+@end
+
+@interface OGKKeyboardEvent: OGKEvent
+@property (readonly, assign) int keycode;
+@end
+
+@interface OGKKeyPressEvent: OGKKeyboardEvent
+@end
+
+@interface OGKKeyReleaseEvent: OGKKeyboardEvent
+@end
+
+@interface OGKMouseEvent: OGKEvent
+@property (readonly, assign) of_point_t cursor;
+@property (readonly, assign) of_point_t wheel;
+@end
+
+@interface OGKMouseMovedEvent: OGKMouseEvent
+@property (readonly, assign) of_point_t deltaCursor, deltaWheel;
+@end
+
+@interface OGKMouseButtonEvent: OGKMouseEvent
+@property (readonly, assign) unsigned button;
+@end
+
+@interface OGKMouseButtonPressedEvent: OGKMouseButtonEvent
+@end
+
+@interface OGKMouseButtonReleasedEvent: OGKMouseButtonEvent
+@end

src/OGKEvent.m

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#import "OGKEvent.h"
+
+@implementation OGKEvent
+- (ALLEGRO_EVENT*)OGK_allegroEvent
+{
+	return &event;
+}
+@end
+
+@implementation OGKCloseEvent
+@end
+
+@implementation OGKKeyboardEvent
+- (int)keycode
+{
+	return event.keyboard.keycode;
+}
+@end
+
+@implementation OGKKeyPressEvent
+@end
+
+@implementation OGKKeyReleaseEvent
+@end
+
+@implementation OGKMouseEvent
+- (of_point_t)cursor
+{
+	return of_point(event.mouse.x, event.mouse.y);
+}
+
+- (of_point_t)wheel
+{
+	return of_point(event.mouse.w, event.mouse.z);
+}
+@end
+
+@implementation OGKMouseMovedEvent
+- (of_point_t)deltaCursor
+{
+	return of_point(event.mouse.dx, event.mouse.dy);
+}
+
+- (of_point_t)deltaWheel
+{
+	return of_point(event.mouse.dw, event.mouse.dz);
+}
+@end
+
+@implementation OGKMouseButtonEvent
+- (unsigned)button
+{
+	return event.mouse.button;
+}
+@end
+
+@implementation OGKMouseButtonPressedEvent
+@end
+
+@implementation OGKMouseButtonReleasedEvent
+@end

src/OGKEventQueue.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#include <allegro5/allegro.h>
+
+#import <ObjFW/ObjFW.h>
+
+#import "OGKEvent.h"
+#import "OGKDisplay.h"
+
+@protocol OGKEventQueueDelegate <OFObject>
+@optional
+- (void)displayWasClosed: (OGKCloseEvent*)event;
+// FIXME: Those need to get the OGKDisplay passed!
+- (void)keyWasPressed: (OGKKeyPressEvent*)event;
+- (void)keyWasReleased: (OGKKeyReleaseEvent*)event;
+- (void)mouseWasMoved: (OGKMouseMovedEvent*)event;
+- (void)mouseButtonWasPressed: (OGKMouseButtonPressedEvent*)event;
+- (void)mouseButtonWasReleased: (OGKMouseButtonReleasedEvent*)event;
+@end
+
+@interface OGKEventQueue: OFObject
+{
+	ALLEGRO_EVENT_QUEUE *eventQueue;
+	/* FIXME: Make this weak once there is support in ObjFW for it */
+	__unsafe_unretained id <OGKEventQueueDelegate> delegate;
+}
+
+@property (unsafe_unretained) id <OGKEventQueueDelegate> delegate;
+
+- (void)handleNextEvent;
+- (void)registerDisplay: (OGKDisplay*)display;
+- (void)unregisterDisplay: (OGKDisplay*)display;
+- (void)registerKeyboard;
+- (void)unregisterKeyboard;
+- (void)registerMouse;
+- (void)unregisterMouse;
+@end

src/OGKEventQueue.m

@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2012 Jonathan Schleifer <js@webkeks.org>
+ *
+ * This software is provided 'as-is', without any express or implied warranty.
+ * In no event will the authors be held liable for any damages arising from the
+ * use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ *   1.) The origin of this software must not be misrepresented; you must not
+ *       claim that you wrote the original software. If you use this software
+ *       in a product, an acknowledgment in the product documentation would be
+ *       appreciated but is not required.
+ *   2.) Altered source versions must be plainly marked as such, and must not
+ *       be misrepresented as being the original software.
+ *   3.) This notice may not be removed or altered from any source distribution.
+ */
+
+#import "OGKEventQueue.h"
+#import "OGKEvent.h"
+#import "OGKDisplay.h"
+
+static int keyboard_retain_count = 0;
+static int mouse_retain_count = 0;
+
+@implementation OGKEventQueue
+@synthesize delegate;
+
++ (void)initialize
+{
+	if (self != [OGKEventQueue class])
+		return;
+
+	if (!al_install_system(ALLEGRO_VERSION_INT, NULL))
+		@throw [OFInitializationFailedException
+		    exceptionWithClass: self];
+}
+
+- init
+{
+	self = [super init];
+
+	eventQueue = al_create_event_queue();
+
+	return self;
+}
+
+- (void)dealloc
+{
+	al_destroy_event_queue(eventQueue);
+}
+
+- (void)handleNextEvent
+{
+	OGKEvent *event = [[OGKEvent alloc] init];
+	ALLEGRO_EVENT *allegroEvent = [event OGK_allegroEvent];
+
+	while (al_get_next_event(eventQueue, allegroEvent)) {
+		switch (allegroEvent->type) {
+		case ALLEGRO_EVENT_DISPLAY_CLOSE:
+			object_setClass(event, [OGKCloseEvent class]);
+
+			if ([delegate respondsToSelector:
+			    @selector(displayWasClosed:)])
+				[delegate displayWasClosed:
+				    (OGKCloseEvent*)event];
+
+			break;
+		case ALLEGRO_EVENT_KEY_DOWN:
+			object_setClass(event, [OGKKeyPressEvent class]);
+
+			if ([delegate respondsToSelector:
+			    @selector(keyWasPressed:)])
+				[delegate keyWasPressed:
+				    (OGKKeyPressEvent*)event];
+
+			break;
+		case ALLEGRO_EVENT_KEY_UP:
+			object_setClass(event, [OGKKeyReleaseEvent class]);
+
+			if ([delegate respondsToSelector:
+			    @selector(keyWasReleased:)])
+				[delegate keyWasReleased:
+				    (OGKKeyReleaseEvent*)event];
+
+			break;
+		case ALLEGRO_EVENT_MOUSE_AXES:
+			object_setClass(event, [OGKMouseMovedEvent class]);
+
+			if ([delegate respondsToSelector:
+			    @selector(mouseWasMoved:)])
+				[delegate mouseWasMoved:
+				    (OGKMouseMovedEvent*)event];
+
+			break;
+		case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN:
+			object_setClass(event,
+			    [OGKMouseButtonPressedEvent class]);
+
+			if ([delegate respondsToSelector:
+			    @selector(mouseButtonWasPressed:)])
+				[delegate mouseButtonWasPressed:
+				    (OGKMouseButtonPressedEvent*)event];
+
+			break;
+		case ALLEGRO_EVENT_MOUSE_BUTTON_UP:
+			object_setClass(event,
+			    [OGKMouseButtonReleasedEvent class]);
+
+			if ([delegate respondsToSelector:
+			    @selector(mouseButtonWasReleased:)])
+				[delegate mouseButtonWasReleased:
+				    (OGKMouseButtonReleasedEvent*)event];
+
+			break;
+		}
+	}
+}
+
+- (void)registerDisplay: (OGKDisplay*)display
+{
+	ALLEGRO_EVENT_SOURCE *eventSource;
+
+	eventSource = al_get_display_event_source([display OGK_allegroDisplay]);
+	al_register_event_source(eventQueue, eventSource);
+}
+
+- (void)unregisterDisplay: (OGKDisplay*)display
+{
+	ALLEGRO_EVENT_SOURCE *eventSource;
+
+	eventSource = al_get_display_event_source([display OGK_allegroDisplay]);
+	al_unregister_event_source(eventQueue, eventSource);
+}
+
+- (void)registerKeyboard
+{
+	of_atomic_inc_int(&keyboard_retain_count);
+
+	if (!al_is_keyboard_installed())
+		if (!al_install_keyboard())
+			@throw [OFInitializationFailedException
+			    exceptionWithClass: [self class]];
+
+	al_register_event_source(eventQueue, al_get_keyboard_event_source());
+}
+
+- (void)unregisterKeyboard
+{
+	al_unregister_event_source(eventQueue, al_get_keyboard_event_source());
+
+	if (of_atomic_dec_int(&keyboard_retain_count) == 0)
+		al_uninstall_keyboard();
+}
+
+- (void)registerMouse
+{
+	of_atomic_inc_int(&mouse_retain_count);
+
+	if (!al_is_mouse_installed())
+		if (!al_install_mouse())
+			@throw [OFInitializationFailedException
+			    exceptionWithClass: [self class]];
+
+	al_register_event_source(eventQueue, al_get_mouse_event_source());
+}
+
+- (void)unregisterMouse
+{
+	al_unregister_event_source(eventQueue, al_get_mouse_event_source());
+
+	if (of_atomic_dec_int(&mouse_retain_count))
+		al_uninstall_mouse();
+}
+@end