diff options
Diffstat (limited to 'src/physics.c')
| -rw-r--r-- | src/physics.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/src/physics.c b/src/physics.c index 14d786a..28c5428 100644 --- a/src/physics.c +++ b/src/physics.c @@ -17,38 +17,34 @@ void update_physics(object_t* world, uint32_t objs_count, float gravity, float d { const uint32_t screen_width = GetScreenWidth(); const uint32_t screen_height = GetScreenHeight(); - if(dt > 0.033f) dt = 0.033f; - - for(uint32_t iter = 0; iter < objs_count; iter++) - { + + for(uint32_t iter = 0; iter < objs_count; iter++) { object_t* obj = &world[iter]; if(!obj->grabbed && obj->registered) { + obj->pos.x += obj->vel.x * dt; obj->pos.y += obj->vel.y * dt; - float half_width = obj->size_x/2.0f; - float half_height = obj->size_y/2.0f; - - if((obj->pos.x + half_width >= screen_width)) { - obj->pos.x = screen_width - half_width; + if((obj->pos.x + obj->size_x) >= screen_width) { + obj->pos.x = screen_width - obj->size_x; obj->vel.x = -obj->vel.x * obj->elast; - } else if((obj->pos.x - half_width) <= 0) { - obj->pos.x = half_width; + } else if((obj->pos.x - obj->size_x) <= 0) { + obj->pos.x = obj->size_x; obj->vel.x = -obj->vel.x * obj->elast; - } else if((obj->pos.y + half_height) >= screen_height) { - obj->pos.y = screen_height - half_height; + } else if((obj->pos.y + obj->size_y) >= screen_height) { + obj->pos.y = screen_height - obj->size_y; obj->vel.y = -obj->vel.y * obj->elast; - } else if((obj->pos.y - half_height) <= 0) { - obj->pos.y = half_height; + } else if((obj->pos.y - obj->size_y) <= 0) { + obj->pos.y = obj->size_y; obj->vel.y = -obj->vel.y * obj->elast; } obj->vel.x = obj->vel.x * obj->frict; - obj->vel.y = obj->vel.y * obj->frict * gravity * dt; + obj->vel.y = (obj->vel.y + gravity * dt) * obj->frict; } if(obj->grabbed) { |