--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# GLKit services to create an OpenGL ES context on iOS
+module glkit
+
+#import glesv2
+import ios
+
+in "ObjC Header" `{
+ #import <GLKit/GLKit.h>
+
+ // Nit controller for games
+ @interface GameViewController : GLKViewController
+
+ // Nit object receiving callbacks
+ @property void* nit_glk_view;
+ @end
+`}
+
+in "ObjC" `{
+
+ @implementation GameViewController
+
+ - (void)update
+ {
+ NitGLKView_update((NitGLKView)self.nit_glk_view);
+ }
+
+ - (UIInterfaceOrientationMask)supportedInterfaceOrientations
+ {
+ long res = NitGLKView_supported_interface_orientations((NitGLKView)self.nit_glk_view);
+ if (res == 0) return [super supportedInterfaceOrientations];
+ return (UIInterfaceOrientationMask)res;
+ }
+
+ - (BOOL)shouldAutorotate
+ {
+ return NitGLKView_should_autorotate((NitGLKView)self.nit_glk_view);
+ }
+
+ - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
+ {
+ NitGLKView_touches_began((NitGLKView)self.nit_glk_view, touches, event);
+ }
+
+ - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
+ {
+ NitGLKView_touches_moved((NitGLKView)self.nit_glk_view, touches, event);
+ }
+
+ - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
+ {
+ NitGLKView_touches_ended((NitGLKView)self.nit_glk_view, touches, event);
+ }
+
+ - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
+ {
+ NitGLKView_touches_cancelled((NitGLKView)self.nit_glk_view, touches, event);
+ }
+
+ - (void)viewWillTransitionToSize:(CGSize)size
+ withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {
+ NitGLKView_view_will_transition_to_size((NitGLKView)self.nit_glk_view, size.width, size.height);
+ }
+ @end
+`}
+
+# Wrapper for both an Objective-C `GLKViewController` and its `GLKView`
+private extern class NativeGLKViewController in "ObjC" `{ GLKViewController * `}
+ super NSObject
+
+ fun content_scale_factor: Float in "ObjC" `{ return self.view.contentScaleFactor; `}
+ fun drawable_width: Int in "ObjC" `{ return ((GLKView*)self.view).drawableWidth; `}
+ fun drawable_height: Int in "ObjC" `{ return ((GLKView*)self.view).drawableHeight; `}
+ fun bind_drawable in "ObjC" `{ [((GLKView*)self.view) bindDrawable]; `}
+
+ fun multiple_touch_enabled: Bool in "ObjC" `{ return [self.view isMultipleTouchEnabled]; `}
+ fun multiple_touch_enabled=(val: Bool) in "ObjC" `{ return [self.view setMultipleTouchEnabled: val]; `}
+end
+
+# OpenGL view controller
+class NitGLKView
+ private var native: NativeGLKViewController = setup(app.app_delegate)
+
+ # Scale factor from logical coordinate space to the device coordinate space
+ fun content_scale_factor: Float do return native.content_scale_factor
+
+ # Width of the underlying framebuffer
+ fun drawable_width: Int do return native.drawable_width
+
+ # Height of the underlying framebuffer
+ fun drawable_height: Int do return native.drawable_height
+
+ # Bind the view framebuffer
+ fun bind_drawable do native.bind_drawable
+
+ private fun setup(app_delegate: AppDelegate): NativeGLKViewController
+ import touches_began, touches_moved, touches_ended, touches_cancelled,
+ update, should_autorotate, supported_interface_orientations,
+ view_will_transition_to_size in "ObjC" `{
+
+ app_delegate.window = [[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds]];
+ app_delegate.window.backgroundColor = [UIColor whiteColor]; // TODO make configurable
+
+ // Create EAGL context and view
+ EAGLContext * context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
+ GLKView *view = [[GLKView alloc] initWithFrame: [[UIScreen mainScreen] bounds]];
+ view.context = context;
+
+ // Ask for antialiasing
+ view.drawableMultisample = GLKViewDrawableMultisample4X;
+ view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
+
+ GameViewController *cont = [[GameViewController alloc] init];
+ cont.view = view;
+
+ // Setup callbacks
+ NitGLKView_incr_ref(self);
+ cont.nit_glk_view = self;
+
+ // Make our controller the root
+ view.delegate = cont;
+ [app_delegate.window setRootViewController: cont];
+
+ // Enable the context
+ [app_delegate.window makeKeyAndVisible];
+ [EAGLContext setCurrentContext: context];
+ [view bindDrawable];
+
+ return cont;
+ `}
+
+ # Is multi-touch supported?
+ fun multiple_touch_enabled: Bool do return native.multiple_touch_enabled
+
+ # Is multi-touch supported?
+ fun multiple_touch_enabled=(val: Bool) do native.multiple_touch_enabled = val
+
+ # Should the view auto rotate to follow the device orientation?
+ #
+ # Defaults to `true`.
+ fun should_autorotate: Bool do return true
+
+ # If `should_autorotate`, what are the supported interface orientations?
+ #
+ # Redef to return values of Objective-C `UIInterfaceOrientationMask`
+ fun supported_interface_orientations: Int do return 0
+
+ # Hook to update the view content, called once per frame
+ fun update do end
+
+ # Hook on a new touch event
+ fun touches_began(touches: NSSet_UITouch, event: UIEvent) do end
+
+ # Hook when a touch moves
+ fun touches_moved(touches: NSSet_UITouch, event: UIEvent) do end
+
+ # Hook on the end of a touch event
+ fun touches_ended(touches: NSSet_UITouch, event: UIEvent) do end
+
+ # Hook on a touch event cancellation
+ fun touches_cancelled(touches: NSSet_UITouch, event: UIEvent) do end
+
+ # Hook when size of the view is about to change to `width` by `height`
+ fun view_will_transition_to_size(width, height: Float) do end
+end
+
+# UIKit event
+extern class UIEvent in "ObjC" `{ UIEvent * `}
+ super NSObject
+end
+
+# Objective-C `NSSet` of `UITouch`
+extern class NSSet_UITouch in "ObjC" `{ NSSet<UITouch*>* `}
+ super NSObject
+
+ # Get any object of this set
+ fun any_object: UITouch in "ObjC" `{ return [self anyObject]; `}
+end
+
+# UIKit touch event
+extern class UITouch in "ObjC" `{ UITouch * `}
+
+ # X coordinate
+ fun x: Float in "ObjC" `{ return [self locationInView:self.view].x; `}
+
+ # Y coordinate
+ fun y: Float in "ObjC" `{ return [self locationInView:self.view].y; `}
+
+ # Address of this object as an integer for identity detection
+ fun to_i: Int in "ObjC" `{ return (long)self; `}
+end
nitlanguage / nit.git / commitdiff