Richard Ellingworth / Mbed 2 deprecated RobotRic

Version of Robotron arcade game using LPC1768, a Gameduino shield, a serial EEPROM (for high scores), two microswitch joysticks and two buttons plus a box to put it in. 20 levels of mayhem.

Dependencies:   25LCxxx_SPI CommonTypes Gameduino mbed

Walker.cpp@18:70190f956a24, 2013-06-17 (annotated)

Committer:
RichardE
Date:
Mon Jun 17 15:10:43 2013 +0000
Revision:
18:70190f956a24
Parent:
7:e72691603fd3 
Improved response to button 1 when entering high scores (HighScoreEntry.cpp).

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RichardE 7:e72691603fd3 1 /*
RichardE 7:e72691603fd3 2 * SOURCE FILE : Walker.cpp
RichardE 7:e72691603fd3 3 *
RichardE 7:e72691603fd3 4 * Methods for objects that walk sideways on (like humans and crushers).
RichardE 7:e72691603fd3 5 *
RichardE 7:e72691603fd3 6 */
RichardE 7:e72691603fd3 7
RichardE 7:e72691603fd3 8 #include "Gameduino.h" // Gameduino stuff
RichardE 7:e72691603fd3 9 #include "GDConst.h"
RichardE 7:e72691603fd3 10 #include "Walker.h"
RichardE 7:e72691603fd3 11 #include "Random.h"
RichardE 7:e72691603fd3 12
RichardE 7:e72691603fd3 13 /*************************************************/
RichardE 7:e72691603fd3 14 /* INITIALISE HORIZONTAL AND VERTICAL VELOCITIES */
RichardE 7:e72691603fd3 15 /*************************************************/
RichardE 7:e72691603fd3 16 // Pass pointers to horizontal and vertical velocities in hv and vv.
RichardE 7:e72691603fd3 17 void Walker::InitialiseVelocities( Int16 *hv, Int16 *vv ) {
RichardE 7:e72691603fd3 18 // Initialise horizontal and vertical speeds.
RichardE 7:e72691603fd3 19 UInt8 rnd = Random::Get( 4 );
RichardE 7:e72691603fd3 20 *hv = GameObject::FromPixel( 1 ) >> 2;
RichardE 7:e72691603fd3 21 if( rnd & 1 ) {
RichardE 7:e72691603fd3 22 *hv = -(*hv);
RichardE 7:e72691603fd3 23 }
RichardE 7:e72691603fd3 24 *vv = GameObject::FromPixel( 1 ) >> 4;
RichardE 7:e72691603fd3 25 if( rnd & 2 ) {
RichardE 7:e72691603fd3 26 *vv = -(*vv);
RichardE 7:e72691603fd3 27 }
RichardE 7:e72691603fd3 28 }
RichardE 7:e72691603fd3 29
RichardE 7:e72691603fd3 30 /*********************************************************/
RichardE 7:e72691603fd3 31 /* UPDATE COORDINATES AND VELOCITIES TO MAKE OBJECT WALK */
RichardE 7:e72691603fd3 32 /*********************************************************/
RichardE 7:e72691603fd3 33 // Pass pointers to x and y coordinates in x and y.
RichardE 7:e72691603fd3 34 // Pass pointers to horizontal and vertical velocities in hv and vv.
RichardE 7:e72691603fd3 35 // Pass restriction flags (as defined in GameObject.h) in restriction Flags.
RichardE 7:e72691603fd3 36 void Walker::Walk( Int16 *x, Int16 *y, Int16 *hv, Int16 *vv, UInt8 restrictionFlags ) {
RichardE 7:e72691603fd3 37 // Make object bounce of edges of restriction area.
RichardE 7:e72691603fd3 38 if( restrictionFlags & (UInt8)( GameObject::LeftRestriction | GameObject::RightRestriction ) ) {
RichardE 7:e72691603fd3 39 *hv = -(*hv);
RichardE 7:e72691603fd3 40 }
RichardE 7:e72691603fd3 41 if( restrictionFlags & (UInt8)( GameObject::UpRestriction | GameObject::DownRestriction ) ) {
RichardE 7:e72691603fd3 42 *vv = -(*vv);
RichardE 7:e72691603fd3 43 }
RichardE 7:e72691603fd3 44 *x += *hv;
RichardE 7:e72691603fd3 45 *y += *vv;
RichardE 7:e72691603fd3 46 }
RichardE 7:e72691603fd3 47
RichardE 7:e72691603fd3 48 /*************************/
RichardE 7:e72691603fd3 49 /* DRAW A WALKING OBJECT */
RichardE 7:e72691603fd3 50 /*************************/
RichardE 7:e72691603fd3 51 // Pass pointer to Gameduino to draw on in gd.
RichardE 7:e72691603fd3 52 // Pass sprite number in spriteNumber.
RichardE 7:e72691603fd3 53 // Pass x and y coordinates in x and y (NOT pixel coordinates).
RichardE 7:e72691603fd3 54 // Pass counter used to pace animation in frameCounter.
RichardE 7:e72691603fd3 55 // Pass pointer to animation data (array of AnimationStages sprite image numbers) in animationData.
RichardE 7:e72691603fd3 56 void Walker::Draw( Gameduino *gd, UInt8 spriteNumber, Int16 x, Int16 y, Int16 hv, UInt8 frameCounter, const UInt8 *animationData ) {
RichardE 7:e72691603fd3 57 // Reverse sprite image horizontally if horizontal speed is positive.
RichardE 7:e72691603fd3 58 Gameduino::Rotation transform = ( hv < 0 ) ? Gameduino::None : Gameduino::FlipX;
RichardE 7:e72691603fd3 59 // Image number changes with the frame counter.
RichardE 7:e72691603fd3 60 const UInt8 *address = animationData + frameCounter % AnimationStages;
RichardE 7:e72691603fd3 61 // Update sprite location and image. Note the last parameter is BadGuy so that it is possible
RichardE 7:e72691603fd3 62 // for player to collide with a human. GoodGuy would mean collisions would be ignored.
RichardE 7:e72691603fd3 63 gd->sprite( spriteNumber, GameObject::ToPixel( x ), GameObject::ToPixel( y ), *address, 0, transform, BadGuy );
RichardE 7:e72691603fd3 64 }