Supplemental casting control with direction and magnitude

An information exchange apparatus, comprising:

• a picture unit, configured to display a game picture, the game picture comprising a candidate skill region;
• a skill unit, configured to determine a target skill based on a skill selection operation for the candidate skill region;
• a joystick unit, configured to display a virtual joystick object on the game picture, wherein the virtual joystick object comprises a virtual joystick control and a preset joystick movement range;
• a position unit, configured to calculate, when a movement operation for the virtual joystick object is detected, at least one skill generation position of the target skill based on the movement operation, wherein to calculate, the position unit is further configured to:
• determine a skill casting object and a preset skill casting range of the target skill;
• obtain a current position of the skill casting object in the game picture;
• obtain a joystick position of the virtual joystick control in the preset joystick movement range when the movement operation for the virtual joystick object is detected;
• and
• calculate at least one skill generation position of the target skill based on the preset joystick movement range, the joystick position, the preset skill casting range, and the current position, wherein to calculate at least one skill generation position of the target skill based on the preset joystick movement range, the joystick position, the preset skill casting range, and the current position, the position unit is further configured to:
• determine an interaction range ratio between the preset joystick movement range and the preset skill casting range;
• determine a relative position according to the interaction range ratio and the joystick position, the relative position being a relative position between the skill generation position and the skill casting object;
• and
• determine a skill generation position of the relative position in the game picture according to the current position of the skill casting object in the game picture;
• and
• a generation unit, configured to generate a skill effect model of the target skill at the at least one skill generation position when a cast operation for the virtual joystick object is detected.

A terminal, comprising a processor and a memory, the memory storing a plurality of instructions and the processor being configured to execute the plurality of instructions and upon execution of the plurality of instructions is configured to:

• display a game picture, the game picture comprising a candidate skill region;
• determine a target skill based on a skill selection operation for the candidate skill region;
• display a virtual joystick object on the game picture, wherein the virtual joystick object comprises a virtual joystick control and a preset joystick movement range;
• calculate, when a movement operation for the virtual joystick object is detected, at least one skill generation position of the target skill based on the movement operation, wherein to calculate, the processor is further configured to:
• determine a skill casting object and a preset skill casting range of the target skill;
• obtain a current position of the skill casting object in the game picture;
• obtain a joystick position of the virtual joystick control in the preset joystick movement range when the movement operation for the virtual joystick object is detected;
• and
• calculate at least one skill generation position of the target skill based on the preset joystick movement range, the joystick position, the preset skill casting range, and the current position, wherein to calculate at least one skill generation position of the target skill based on the preset joystick movement range, the joystick position, the preset skill casting range, and the current position, the processor is further configured to:
• determine an interaction range ratio between the preset joystick movement range and the preset skill casting range;
• determine a relative position according to the interaction range ratio and the joystick position, the relative position being a relative position between the skill generation position and the skill casting object;
• and
• determine a skill generation position of the relative position in the game picture according to the current position of the skill casting object in the game picture;
• and
• generate a skill effect model of the target skill at the at least one skill generation position when a cast operation for the virtual joystick object is detected.