X-Git-Url: https://git.yukkurigames.com/?p=enjoyable.git;a=blobdiff_plain;f=Joystick.m;fp=Joystick.m;h=8fa67919789fde788b7c9bd807e787d63f21146a;hp=0000000000000000000000000000000000000000;hb=530009447c5bbd360ac5023979cffc6d32a28df3;hpb=5f07baa8cb03a2f6aa06338bfeb31dad3c3ca29f

diff --git a/Joystick.m b/Joystick.m
new file mode 100644
index 0000000..8fa6791
--- /dev/null
+++ b/Joystick.m
@@ -0,0 +1,116 @@
+//
+//  Joystick.m
+//  Enjoy
+//
+//  Created by Sam McCall on 4/05/09.
+//
+
+@implementation Joystick
+
+
+@synthesize	vendorId, productId, productName, name, index, device, children;
+
+-(id)initWithDevice: (IOHIDDeviceRef) newDevice {
+	if(self=[super init]) {
+		children = [[NSMutableArray alloc]init];
+		
+		device = newDevice;
+		productName = (NSString*)IOHIDDeviceGetProperty( device, CFSTR(kIOHIDProductKey) );
+		vendorId = [(NSNumber*)IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey)) intValue];
+		productId = [(NSNumber*)IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey)) intValue];
+		
+		name = productName;
+	}
+	return self;
+}
+
+-(void) setIndex: (int) newIndex {
+	index = newIndex;
+	name = [[NSString alloc] initWithFormat: @"%@ #%d", productName, (index+1)];
+}
+-(int) index {
+	return index;
+}
+
+-(void) invalidate {
+	IOHIDDeviceClose(device, kIOHIDOptionsTypeNone);
+	NSLog(@"Removed a device: %@", [self name]);
+}
+
+-(id) base {
+	return NULL;
+}
+
+-(void) populateActions {
+	NSArray* elements = (NSArray*)IOHIDDeviceCopyMatchingElements(device, NULL, kIOHIDOptionsTypeNone);
+	
+	int buttons = 0;
+	int axes = 0;
+	
+	for(int i=0; i<[elements count]; i++) {
+		IOHIDElementRef element = (IOHIDElementRef)[elements objectAtIndex: i];
+		int type = IOHIDElementGetType(element);
+		int usage = IOHIDElementGetUsage(element);
+		int usagePage = IOHIDElementGetUsagePage(element);
+		int max = IOHIDElementGetPhysicalMax(element);
+		int min = IOHIDElementGetPhysicalMin(element);
+        CFStringRef elName = IOHIDElementGetName(element);
+		
+//		if(usagePage != 1 || usagePage == 9) {
+//			NSLog(@"Skipping usage page %x usage %x", usagePage, usage);
+//			continue;
+//		}
+		
+		JSAction* action = NULL;
+		
+		if(!(type == kIOHIDElementTypeInput_Misc || type == kIOHIDElementTypeInput_Axis ||
+			 type == kIOHIDElementTypeInput_Button)) {
+
+			continue;
+		}
+		
+		if((max - min == 1) || usagePage == kHIDPage_Button || type == kIOHIDElementTypeInput_Button) {
+			action = [[JSActionButton alloc] initWithIndex: buttons++ andName: (NSString *)elName];
+			[(JSActionButton*)action setMax: max];
+		} else if(usage == 0x39)
+			action = [[JSActionHat alloc] init];
+		else {
+			if(usage >= 0x30 && usage < 0x36) {
+				action = [[JSActionAnalog alloc] initWithIndex: axes++];
+				[(JSActionAnalog*)action setOffset: (double)-1.0];
+				[(JSActionAnalog*)action setScale: (double)2.0/(max - min)];
+			} else 
+				continue;
+		}
+
+		[action setBase: self];
+		[action setUsage: usage];
+		[action setCookie: IOHIDElementGetCookie(element)];
+		[children addObject:action];
+	}
+}
+
+-(NSString*) stringify {
+	return [[NSString alloc] initWithFormat: @"%d~%d~%d", vendorId, productId, index];
+}
+
+- (JSAction*) findActionByCookie: (void*) cookie {
+	for(int i=0; i<[children count]; i++)
+		if([[children objectAtIndex:i]cookie] == cookie)
+			return (JSAction*)[children objectAtIndex:i];
+	return NULL;
+}
+
+-(id) handlerForEvent: (IOHIDValueRef) value {
+	JSAction* mainAction = [self actionForEvent: value];
+	if(!mainAction)
+		return NULL;
+	return [mainAction findSubActionForValue: value];
+}
+-(JSAction*) actionForEvent: (IOHIDValueRef) value {
+	IOHIDElementRef elt = IOHIDValueGetElement(value);
+	void* cookie = IOHIDElementGetCookie(elt);
+	return [self findActionByCookie: cookie];
+}
+
+@end