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Fix main loop

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This commit is contained in:
Miloslav Číž 2019-10-03 19:31:25 +02:00
parent 5f83fd9acf
commit 438c7075b0
2 changed files with 17 additions and 13 deletions
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28
main.c
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@ -417,7 +417,7 @@ RCL_Unit SFG_ceilingHeightAt(int16_t x, int16_t y)
SFG_getTimeMs() - SFG_currentLevel.timeStart);
}
uint32_t SFG_frame;
uint32_t SFG_gameFrame;
uint32_t SFG_lastFrameTimeMs;
void SFG_setAndInitLevel(const SFG_Level *level)
@ -442,7 +442,7 @@ void SFG_init()
{
SFG_LOG("initializing game")
SFG_frame = 0;
SFG_gameFrame = 0;
SFG_lastFrameTimeMs = 0;
RCL_initRayConstraints(&SFG_rayConstraints);
@ -557,10 +557,14 @@ void SFG_mainLoopBody()
delta time. */
uint32_t timeNow = SFG_getTimeMs();
uint16_t timeSinceLastFrame = timeNow - SFG_lastFrameTimeMs;
uint32_t timeNextFrame = SFG_lastFrameTimeMs + SFG_MS_PER_FRAME;
if (timeSinceLastFrame >= SFG_MS_PER_FRAME)
if (timeNow >= timeNextFrame)
{
uint32_t timeSinceLastFrame = timeNow - SFG_lastFrameTimeMs;
uint8_t steps = 0;
// perform game logic (physics), for each frame
while (timeSinceLastFrame >= SFG_MS_PER_FRAME)
{
@ -568,20 +572,20 @@ void SFG_mainLoopBody()
timeSinceLastFrame -= SFG_MS_PER_FRAME;
SFG_frame++;
SFG_gameFrame++;
steps++;
}
if (steps > 1)
SFG_LOG("Failed to reach target FPS! Consider setting a lower value.")
// render noly once
RCL_renderComplex(SFG_player.camera,SFG_floorHeightAt,SFG_ceilingHeightAt,SFG_texturesAt,SFG_rayConstraints);
SFG_lastFrameTimeMs = timeNow;
}
uint32_t timeNextFrame = timeNow + SFG_MS_PER_FRAME;
timeNow = SFG_getTimeMs();
if (timeNextFrame > timeNow)
SFG_sleepMs((timeNextFrame - timeNow) / 2); // wait, relieve CPU
else
SFG_LOG("failed to reach target FPS!")
{
SFG_sleepMs((timeNextFrame - timeNow) / 2); // wait, relieve CPU
}
}

2
platform_pokitto.h
View File

@ -4,7 +4,7 @@
#include "settings.h"
#undef SFG_FPS
#define SFG_FPS 30
#define SFG_FPS 50
#undef SFG_RESOLUTION_X
#define SFG_RESOLUTION_X 110