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Add more keys

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This commit is contained in:
Miloslav Číž 2019-10-02 14:42:30 +02:00
parent 632c4741dd
commit 2d3956a506
2 changed files with 37 additions and 12 deletions
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42
main.c
View File

@ -4,6 +4,10 @@
#include "assets.h"
#include "palette.h"
/*
The following keys are mandatory to be implemented on any platform in order
for the game to be playable.
*/
#define SFG_KEY_UP 0
#define SFG_KEY_RIGHT 1
#define SFG_KEY_DOWN 2
@ -11,6 +15,13 @@
#define SFG_KEY_A 4
#define SFG_KEY_B 5
#define SFG_KEY_C 6
/*
The following keys are optional for a platform to implement. They just make
the controls more comfortable.
*/
#define SFG_KEY_JUMP 7
#define SFG_KEY_STRAFE_LEFT 8
#define SFG_KEY_STRAFE_RIGHT 9
/* ============================= PORTING =================================== */
@ -25,7 +36,9 @@
#define SFG_LOG(str) ; ///< Can be redefined to log messages for better debug.
/** Return 1 (0) if given key is pressed (not pressed). */
/** Return 1 (0) if given key is pressed (not pressed). At least the mandatory
keys have to be implemented, the optional keys don't have to ever return 1.
See the key contant definitions to see which ones are mandatory. */
int8_t SFG_keyPressed(uint8_t key);
/** Return time in ms sice program start. */
@ -386,7 +399,7 @@ RCL_Unit SFG_ceilingHeightAt(int16_t x, int16_t y)
uint32_t SFG_frame;
uint32_t SFG_lastFrameTimeMs;
void SFG_setLevel(const SFG_Level *level)
void SFG_setAndInitLevel(const SFG_Level *level)
{
SFG_LOG("setting and initializing level");
@ -421,7 +434,7 @@ void SFG_init()
SFG_backgroundScroll = 0;
SFG_setLevel(&SFG_level0);
SFG_setAndInitLevel(&SFG_level0);
}
/**
@ -437,18 +450,14 @@ void SFG_gameStep()
moveOffset.x = 0;
moveOffset.y = 0;
int8_t strafe = 0;
if (SFG_keyPressed(SFG_KEY_A))
{
if (SFG_keyPressed(SFG_KEY_LEFT))
{
moveOffset.x = -1 * SFG_player.direction.y;
moveOffset.y = SFG_player.direction.x;
}
strafe = -1;
else if (SFG_keyPressed(SFG_KEY_RIGHT))
{
moveOffset.x = SFG_player.direction.y;
moveOffset.y = -1 * SFG_player.direction.x;
}
strafe = 1;
}
else
{
@ -467,6 +476,17 @@ void SFG_gameStep()
SFG_recompurePLayerDirection();
}
if (SFG_keyPressed(SFG_KEY_STRAFE_LEFT))
strafe = -1;
else if (SFG_keyPressed(SFG_KEY_STRAFE_RIGHT))
strafe = 1;
if (strafe != 0)
{
moveOffset.x = strafe * SFG_player.direction.y;
moveOffset.y = -1 * strafe * SFG_player.direction.x;
}
#if SFG_PREVIEW_MODE
if (SFG_keyPressed(SFG_KEY_B))
SFG_player.verticalSpeed = SFG_PLAYER_MOVE_UNITS_PER_FRAME;

7
platform_sdl.h
View File

@ -43,6 +43,11 @@ int8_t SFG_keyPressed(uint8_t key)
case SFG_KEY_A: return sdlKeyboardState[SDL_SCANCODE_A]; break;
case SFG_KEY_B: return sdlKeyboardState[SDL_SCANCODE_S]; break;
case SFG_KEY_C: return sdlKeyboardState[SDL_SCANCODE_D]; break;
case SFG_KEY_JUMP: return sdlKeyboardState[SDL_SCANCODE_SPACE]; break;
case SFG_KEY_STRAFE_LEFT: return sdlKeyboardState[SDL_SCANCODE_Q]; break;
case SFG_KEY_STRAFE_RIGHT: return sdlKeyboardState[SDL_SCANCODE_E]; break;
default: return 0; break;
}
}
@ -80,7 +85,7 @@ int main()
{
SDL_PumpEvents(); // updates the keyboard state
if (sdlKeyboardState[SDL_SCANCODE_Q])
if (sdlKeyboardState[SDL_SCANCODE_ESCAPE])
break;
SFG_mainLoopBody();