forked from Tituya/AST3_C
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#include "friction.h"
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#include "collide.h"
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void mod_accel_and_fric(float *acceleration, float *friction, int x, int y,
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char level[])
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{
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*acceleration = HACCELERATION;
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*friction = HFRICTION;
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if(!mod_rough(acceleration, friction, x, y, level))
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mod_solid(acceleration, friction, x, y, level);
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if(!mod_ice(acceleration, friction, x, y, level))
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mod_solid(acceleration, friction, x, y, level);
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}
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int mod_ice(float *acceleration, float *friction, int x, int y, char level[])
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{
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if (collide(x, y - 1, level, 'i') || collide(x, y + 1, level, 'i')) {
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*friction /= 3.0;
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*acceleration /= 2.0;
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return 1;
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}
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return 0;
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}
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int mod_rough(float *acceleration, float *friction, int x, int y, char level[])
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{
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if (collide(x, y - 1, level, 'r') || collide(x, y + 1, level, 'r')) {
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*friction *= 3;
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*acceleration *= 2;
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return 1;
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}
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return 0;
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}
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int mod_solid(float *acceleration, float *friction, int x, int y, char level[])
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{
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if (collide_solid(x, y - 1, level) || collide_solid(x, y + 1, level)) {
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*friction *= 2.0;
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*acceleration *= 2.0;
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return 1;
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}
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return 0;
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}
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