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apply screen scaling to lightgun controller

This commit is contained in:
thrust26 2019-12-30 22:37:50 +01:00
parent 1295bd5cf6
commit 86e01bc8b9
3 changed files with 14 additions and 17 deletions
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2
src/emucore/Console.cxx
View File

@ -873,7 +873,7 @@ unique_ptr<Controller> Console::getControllerPort(const Controller::Type type,
break;
case Controller::Type::Lightgun:
controller = make_unique<Lightgun>(port, myEvent, *mySystem);
controller = make_unique<Lightgun>(port, myEvent, *mySystem, myOSystem.frameBuffer());
break;
default:

24
src/emucore/Lightgun.cxx
View File

@ -18,12 +18,14 @@
#include "TIA.hxx"
#include "System.hxx"
#include "FrameBuffer.hxx"
#include "Lightgun.hxx"
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lightgun::Lightgun(Jack jack, const Event& event, const System& system)
: Controller(jack, event, system, Controller::Type::Lightgun)
Lightgun::Lightgun(Jack jack, const Event& event, const System& system, const FrameBuffer& frameBuffer)
: Controller(jack, event, system, Controller::Type::Lightgun),
myFrameBuffer(frameBuffer)
{
}
@ -39,22 +41,16 @@ bool Lightgun::read(DigitalPin pin)
// Pin 6: INPT4/5
case DigitalPin::Six:
{
// TODO: scale correctly, current code assumes 2x zoom and no vertical scaling
Int32 xpos = myMouseX / 4;
Int32 ypos = myMouseY / 2;
uInt32 ux;
uInt32 uy;
mySystem.tia().electronBeamPos(ux, uy);
const Common::Rect& rect = myFrameBuffer.imageRect();
// scale mouse coordinates into TIA coordinates
Int32 xpos = (myMouseX - rect.x()) * TIAConstants::H_PIXEL / rect.w();
Int32 ypos = (myMouseY - rect.y()) * 210 / rect.h(); // TODO: replace "magic number"
// get adjusted TIA coordinates
Int32 x = mySystem.tia().clocksThisLine() - TIAConstants::H_BLANK_CLOCKS + X_OFS;
Int32 y = mySystem.tia().scanlines() - mySystem.tia().startLine() + Y_OFS;
if (x < 0)
x += TIAConstants::H_CLOCKS;
Int32 y = uy + Y_OFS;
//cerr << "mouse:" << xpos << " " << ypos << endl;
//cerr << " beam:" << x << " " << y << endl;
bool enable = !((x - xpos) >= 0 && (x - xpos) < 15 && (y - ypos) >= 0);

5
src/emucore/Lightgun.hxx
View File

@ -38,7 +38,7 @@ public:
@param event The event object to use for events
@param system The system using this controller
*/
Lightgun(Jack jack, const Event& event, const System& system);
Lightgun(Jack jack, const Event& event, const System& system, const FrameBuffer& frameBuffer);
virtual ~Lightgun() = default;
public:
@ -69,10 +69,11 @@ public:
bool isAnalog() const override { return true; }
private:
const FrameBuffer& myFrameBuffer;
Int32 myMouseX{0}, myMouseY{0};
static constexpr Int32 X_OFS = -21;
static constexpr Int32 Y_OFS = 10;
static constexpr Int32 Y_OFS = 5;
// Lookup table for associating paddle buttons with controller pins
static const Controller::DigitalPin ourButtonPin;