ObjGameKit  Check-in [c6c34e7b99]

all:
	@cd src && ${MAKE} ${MFLAGS}
	@cd test && ${MAKE} ${MFLAGS}

clean:
	@cd src && ${MAKE} ${MFLAGS} clean
	@cd test && ${MAKE} ${MFLAGS} clean
	@rm -f *~

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.* *~

/*
 * 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

/*
 * 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

/*
 * 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

/*
 * 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

/*
 * 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

/*
 * 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

all:
	@objfw-compile -o test --arc *.m \
		-I../src -L../src -lobjgamekit \
		`pkg-config --cflags --libs allegro-5.0 allegro_main-5.0`

clean:
	@rm -f test *.o *~

/*
 * 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 <ObjFW/ObjFW.h>

#import "OGKDisplay.h"
#import "OGKEventQueue.h"

@interface TestMain: OFObject <OFApplicationDelegate, OGKEventQueueDelegate>
{
	OGKDisplay *display;
	OGKEventQueue *eventQueue;
	BOOL running;
}
@end

/*
 * 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"
#import "OGKEvent.h"
#import "OGKEventQueue.h"
#import "TestMain.h"

OF_APPLICATION_DELEGATE(TestMain)

@implementation TestMain
- (void)displayWasClosed: (OGKCloseEvent*)event
{
	running = NO;
}

- (void)keyWasPressed: (OGKKeyPressEvent*)event
{
	of_log(@"Pressed: %d", event.keycode);
}

- (void)keyWasReleased: (OGKKeyReleaseEvent*)event
{
	of_log(@"Released: %d", event.keycode);
}

- (void)mouseWasMoved: (OGKMouseMovedEvent*)event
{
	of_log(@"Mouse moved: X=%.f(%.f) Y=%.f(%.f) WX=%.f(%.f) WY=%.f(%.f)",
	    event.cursor.x, event.deltaCursor.x,
	    event.cursor.y, event.deltaCursor.y,
	    event.wheel.x, event.deltaWheel.x,
	    event.wheel.y, event.deltaWheel.y);
}

- (void)mouseButtonWasPressed: (OGKMouseButtonPressedEvent*)event
{
	of_log(@"Mouse button was pressed: %d (X=%.f Y=%.f WX=%.f WY=%.f)",
	    event.button, event.cursor.x, event.cursor.y,
	    event.wheel.x, event.wheel.y);
}

- (void)mouseButtonWasReleased: (OGKMouseButtonPressedEvent*)event
{
	of_log(@"Mouse button was released: %d (X=%.f Y=%.f WX=%.f WY=%.f)",
	    event.button, event.cursor.x, event.cursor.y,
	    event.wheel.x, event.wheel.y);
}

- (void)applicationDidFinishLaunching
{
	display = [[OGKDisplay alloc] initWithSize: of_dimension(640, 480)
					fullscreen: NO
					 resizable: NO];
	eventQueue = [[OGKEventQueue alloc] init];
	eventQueue.delegate = self;

	[eventQueue registerDisplay: display];
	[eventQueue registerKeyboard];
	[eventQueue registerMouse];

	for (running = YES; running;) {
		@autoreleasepool {
			[eventQueue handleNextEvent];
		}
	}
}

- (void)applicationWillTerminate
{
	/* Make sure they don't get deallocated after al_uninstall_system() */
	display = nil;
	eventQueue = nil;

	al_uninstall_system();
}
@end